大学体验英语第三册作业题及答案

大学体验英语第三册作业题

作业题一

Part I. Reading Comprehension (35 minutes)

Questions 1 to 5 are based on the following passage:

At this time the state of South Carolina was having hard times. Year after year the soil had been planted to the same crop. It was farmed by uneducated and careless slaves, and the planters knew little about soil conservation. Because the soil was beginning to wear out, crops were smaller. The younger people were not satisfied to raise cotton on the poor soil of the old South. Many of them moved westward and started cotton plantations in Alabama and Mississippi. Moreover, so much cotton had been shipped to factories in England and New England that they had as much cotton as they could use. This brought the price of cotton down. More and more slaves were needed to work on the new and larger plantations, and higher and higher prices were demanded for them. Planters found their expenses rising and their incomes from the sale of cotton reduced. Hard times had come to South Carolina.

1. The best title of this passage is ______.

A) Ignorance of Planters About Farming

B) Economic Rivalry in the South

C) Deterioration of the Soil in South Carolina

D) Economic Difficulties of South Carolina

2. Which of the following sentences can best summarize the main idea of

the passage?

A) Hard times had come to South Carolina planters.

B) Planters found their expenses rising and their incomes from the

sale of cotton reduced.

C) Year after year the soil of South Carolina had been planted with

the same crop.

D) Because the soil was beginning to wear out, crops were smaller.

3. In discussing the economy of South Carolina, one of the author's

assumptions is that the reader understands ______.

A) the lack of knowledge on the part of planters and slaves

B) farming methods in use at the time

C) the law of supply and demand

D) why more slaves were needed

4. Plantations grew in size in South Carolina mainly because ______.

A) demand for cotton had decreased B) planters grew rich

C) places had to be found for young people

D) soil was less productive

5. The fact that cotton prices were falling is mentioned by the author to

show that ______.

A) cotton shipments should have been regulated

B) poorer soil produced poorer quality crops

C) the planters were having hard times

D) there were reasons why young people moved westward

Questions 6 to 10 are based on the following passage:

A unique laboratory at the University of Chicago is busy only at night. It is a dream laboratory where researchers are at work studying dreamers. Their findings have revealed that everyone dreams from three to seven times a night, although in ordinary life a person may remember none or only one of his dreams.

While the subjects--usually students--are asleep, special machines record their brain waves and eye movements as well as the body movements that signal the end of a dream. Surprisingly, all subjects sleep soundly.

Observers report that a person usually moves his body restlessly before a dream. Once the dream has started, his body relaxes and his eyes become more active, as if the curtain had gone up on a show. As soon as the machine indicates that the dream is over, a buzzer wakens the sleeper. He sits up, records his dream, and goes back to sleep--perhaps to dream some more.

Researchers have found that if the dreamer is wakened immediately after his dream, he can usually recall the entire dream. If he is allowed to sleep even five more minutes, his memory of the dream will have faded.

6. According to the passage, researchers at the University of Chicago are

studying ______.

A) the content of dreams B) the meaning of dreams

C) the process of sleeping D) dreamers while they dream

7. Their findings have revealed that ______.

A) everyone dreams every night B) dreams are easily remembered

C) dreams are likely to be frightening

D) persons dream only one dream a night

8. Just before a dream a sleeper will usually ______.

A) relax B) lie perfectly

C) give an uneasy movement D) make more eye movements

9. In the dream laboratory, the dreamers are recorded _______.

A) as soon as the students wake in the morning

B) at stated intervals during the night

C) about five minutes after the end of each dream

D) immediately after each dream

10. A person is most likely to remember the dream that _______.

A) is of most interest to him

B) occurs immediately after he goes to sleep

C) occurs just before he wakes up

D) both A) and B)

Questions 11 to 15 are based on the following passage:

The existence of oil wells has been well known for a long time. Some of the Indians of North America used to collect and sell the oil from the wells of Pennsylvania. No one, however, seems to have realized the importance of this oil until it was found that paraffin-oil could be made from it; this led to the development of the wells and to the making of enormous profits. When the internal combustion engine was invented, oil became of world-wide importance.

What was the origin of the oil which now drives our motor-cars and aircraft? Scientists are confident about the formation of coal, but they do not seem so sure when asked about oil. They think that the oil under the surface of the earth originated in the distant past, and was formed from living things in the sea. Countless billions of minute sea creatures and plants lived and sank to the sea bed. They were covered with huge deposits of mud, and by processes

of chemistry, pressure and temperature were changed through long ages into what we know as oil. For these creatures to become oil, it was necessary that they should be imprisoned between layers of rock for an enormous length of time. The statement that oil originated in the sea is confirmed by a glance at a map showing the chief oilfields of the world; very few of them are far distant from the oceans of today. In some places gas and oil come up to the surface of the sea from its bed. The rocks in which oil is found are of marine origin too. They are sedimentary rocks, rocks which were laid down by the action of water on the bed of the ocean. Almost always their remains of shells, and other proofs of sea life, are found close to the oil. A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the sea bed. And where there is shale there is likely to be oil.

There are four main areas of the world where deposits of oil appear. The first is that of the Middle East, and includes the regions near the Caspian Sea, the Black Sea, the Red Sea and the Persian Gulf. Another is the area between North and South America, and the third, between Asia and Australia, includes the Islands of Sumatra, Borneo and Java.

The fourth area is the part near the North Pole. When all the present oil-fields are exhausted, it is possible that this cold region may become the scene of oil activity. Yet the difficulties will be great, and the costs may be so high that no company will undertake the work. If progress in using atomic power to drive machines is fast enough, it is possible that oil-driven engines may give place to the new kind of engine. In that case the demand for oil will fall, the oilfields will gradually disappear, and the deposits at the North Pole may rest where they are forever.

11. Mineral oil didn't become very important until _______.

A) the internal combustion engine was invented

B) the oil wells in Pennsylvania were developed

C) American Indians began to collect and sell it

D) oilfields were exhausted

12. Scientists think that _______.

A) coal was formed from shale under the surface of the earth

B) oil was formed from sea creatures caught between layers of rock

C) oil was formed from large deposits of mud on the sea bed

D) oil was formed from sea water by processes of chemistry,

pressure and temperature

13. "Where there is shale, there is likely to be oil." The author

says this in order to show that ______.

A) oil was first formed under sea

B) shale is a sedimentary rock

C) oil was made from shale

D) shale is another form of oil

14. The first three areas of oil deposits are mentioned in a single

paragraph, whereas the fourth area is mentioned in a separate

paragraph. This is because ______.

A) the fourth area has not been developed yet and may never be

developed

B) the fourth area is a long way from North America

C) its oilfields are already exhausted

D) the fourth area is a good place to develop atomic power

15. Progress in using atomic power may _______.

A) save all the trouble of drilling for oil

B) give rise to a new kind of oil-driven engine

C) reduce the cost of drilling near the North Pole

D) make it necessary to drill near the North Pole

Questions 16 to 20 are based on the following passage:

A very important world problem is the rapidly increasing pressure of population on land and on land resources.

It is not so much the actual population of the world but its rate of increase which is important. It works out to be about 1.6 per cent per annum net increase. In terms of numbers this means something like forty to fifty-five million additional people every year. Canada has a population of twenty million--rather less than six months' climb in world population. Take Australia. There are ten million people in Australia. So, it takes the world less than three months to add to itself a population which peoples that vast country. Let us take our own crowded country--England and Wales: forty-five to fifty million people--just about a year's supply. By this time tomorrow, and every day, there will be added to the earth about 120,000 extra people, just about the population of the city of York.

This enormous increase of population will create immense problems. By A.D. 2000, unless something desperate happens, there will be as many as 7,000,000,000 people on the surface of this earth! So this is a problem which you are going to see in your lifetime.

Why is this enormous increase in population taking place? It is really due to the spread of the knowledge and the practice of what is coming to be called Death Control. Death Control is something rather different from Birth Control. Death Control recognizes the work of the doctors and the nurses and the hospitals and the health services in keeping alive people who, a few years ago, would have died of some of the incredibly serious killing diseases, as they used to be. Squalid conditions, which we can remedy by an improved standard of living, caused a lot of disease and dirt. Medical examinations at school catch diseases early and ensure healthier school children. Scientists are at work stamping our malaria and other more deadly diseases. If you are seriously ill there is an ambulance to take you to a modern hospital. Medical care helps to keep people alive longer. We used to think seventy was a good age; now eighty, ninety, it may be, are coming to be recognized as a normal age for human beings. People are living longer because of this Death Control, and fewer children are dying, so the population of the world is shooting up.

Imagine the position if you and I and everyone else living on earth shared the surface between us. How much should we have each? It would be just over twelve acres--the sort of size of a small holding. But not all that is useful land which is going to produce food. We can cut out one-fifth of it, for example, as being too cold. That is land which is covered with ice and snow--Antarctica and Greenland and the great frozen areas of northern Canada. Then we can cut out another fifth as being too dry--the great deserts of the world like the Sahara and the heart of Australia and other areas where there is no known water supply to feed crops and so to produce food. Then we can cut out another fifth as being too mountainous or with too great an elevation above sea level. Then we can cut out another tenth as land which has insufficient soil, probably just rock at the surface. Now, out of the twelve acres only about four are left as suitable for producing food.. But not all that is used. It includes land with enough soil and enough rainfall or water, and enough heat which, at present, we are not using, such as, for example, the great Amazon forests and the Congo forest and the grasslands of Africa. How much are we

actually using? Only a little over one acre is what is required to support one human being on an average at the present time.

16. The world's population is increasing because _______.

A) the number of babies born every year is about 16 percent of the

total population

B) the birth rate is about 1.6 percent higher than the death rate

C) the birth rate is going up by 1.6 percent per annum

D) the death rate is going down by about 1.6 percent every year

17. The author mentions the different populations of Canada, Australia,

and England and Wales in order to _______.

A) show how small these countries are

B) show how quickly those countries are populated

C) emphasize the low rate of increase of world population

D) emphasize the high rate of increase of world population

18. According to the passage which of the following is not the cause for

death?

A) Poor living condition. B) Fatal diseases like malaria.

C) Poor medical service. D) Less food to feed people.

19. By "Death Control" the author means _______.

A) a rather different kind of Birth Control

B) control of the world's population

C) the prevention or cure of diseases

D) the spread of knowledge in the world

20. From the passage we can conclude _______.

A) the problem of land is not very serious

B) the problem of land can be solved by removing Death Control

C) the problem of land should be solved by reducing the population

D) there is still potential to tap in the use of land

Part II. Vocabulary and Structure (20 minutes)

21. It has come ______ my knowledge that you have not been studying very

hard.

A) through B) up with C) to D) up against

22. He has always gone ______ strange hobbies like collecting bottle-tops

and inventing secret codes.

A) into B) by C) in for D) for

23. Marking and correcting learner's wrong use of a foreign language can

not keep him ______ making mistakes.

A) in B) down C) off D) from

24. I was trying to explain what had happened to my lab last night, but

the boss cut me ______.

A) off B) down C) short D) back

25. It is impossible to measure the _______ of study by money.

A) award B) prize C) reward D) price

26. His pronunciation sounded very _______.

A) clear B) plain C) obvious D) distinguished

27. The flat we have rented is very _______ for the railway station.

A) comfortable B) suitable C) near D) convenient

28. Many houses in that area have been ______. A new hotel will be

erected.

A) moved down B) pushed down C) pulled down D) fallen down

29. I had a terrible nightmare in which I was put ______ in a mental hospital.

A) away B) up C) forward D) down

30. At present, our house is not ______ against fire.

A) insured B) ensured C) assured D) reassured

31. He felt ______ that he should leave immediately.

A) strong B) strongly

C) strength D) to be strong

32. Tell him not to worry. I will have ______.

A) to inform him B) informed him

C) him inform D) him informed

33. There was a storm ______ night.

A) on B) at the C) in the D) during

34. He had a hard time ______ English.

A) studying B) studied C) to study D) and studied

35. The crime seems ______ by a woman.

A) committed B) to be committed

C) to have committed D) to have been committed

36. He prefers ______.

A) sailing to swim B) to sail to swim

C) sailing to swimming D) sailing rather than swimming

37. They ______ him from going there.

A) forced B) forbid C) didn't allow D) prevented

38. The family never agree about ______ shares of the property.

A) its B) his C) their D) one's

39. That book is ______.

A) worthy to read B) worthy of reading

C) worthy of being read D) worthy reading

40. ______ of his eyes is good.

A) Every one B) Both C) All D) Each

41. John didn't finish his work; the doctor advised that he ______ it.

A) not to do B) did not do C) not do D) don't do

42. We ______ that he were here now.

A) wish B) hope C) expect D) feel

43. You should insure your house ______ there's fire.

A) when B) if C) in case D) unless

44. No one knows ______ to do.

A) what do the others want B) which do the others want

C) what the others want D) that the others want

45. Why he did it is ______ my comprehension.

A) over B) against C) on D) beyond

46. He is good ______ tennis.

A) at B) in C) on D) for

47. Discovered many years ago, ______.

A) we find uranium a useful metal

B) we regard uranium as a useful metal

C) uranium is a useful metal

D) uranium is considered like a useful metal

48. Mary is the nicest girl ______.

A) of all her sisters B) among her sisters

C) in her family D) of all the boys and girls

49. I met him in a park ______ .

A) one day B) some day C) someday D) sometime

50. He can't remember ______.

A) what is the formulae B) what the formulae is

C) what are the formulae D) what the formulae are

Part III. Cloze (15 minutes)

The formation of the atomic theory is one of the

great achievements of science. It has enabled us

__51__ the properties of the elements, the basic 51. A) to learn about

B) of realizing

C) to understand

D) in the belief of

building blocks of all matter, __52__ we know 52. A) so that

B) therefore

C) in order that

D) resulting from

which elements can __53__ each other. 53. A) go together

B) work out

C) replace

D) combine with

The science of chemistry is based on our

understanding of atoms and __54__ in interacting

with one another. 54. A) its property

B) their behavior

C) its behavior

D) their performing

__55__ science called atomic (or sometimes 55. A) The other B) The C) One D) Another nuclear) physics __56__ to study the 56. A) which is

B) whose task is

C) was invented

D) came into being

structure of the atom __57__. As the atom was 57. A) of all

B) itself

C) in an entire way

D) by scientists

investigated, it became __58__ that the atom 58. A) reasonable

B) interesting

C) important

D) apparent

was not a solid piece of matter, __59__ 59. A) since it B) it C) but D) and was made up of even smaller particles. The

first subatomic particle __60__ was 60. A) people are

identifying

B) to be identified

C) that it

identifies

D) which needs

identifying

the electron, a tiny piece of matter __61__ 61. A) in B) of C) with D) on

a negative electric charge. The __62__ of 62. A) size B) weight C) scale D) pattern

an electron was very small indeed--approximately

__63__ of the weight of a hydrogen atom, 63. A) one eighteen-

hundredth

B) one eighteenth-

hundredth

C) One eighteen-

hundreds

D) one eighteens-

hundredth

__64__ all the elements. Scientists came to 64. A) the heaviest of

B) the lightest of

C) the smallest of

D) the largest of

believe that the electrons orbited the nucleus

of the atom, __65__ almost all of the weight of 65. A) in which

B) for which

C) on which

D) around which

the atom was concentrated. The atom, __66__ was 66. A) in this way

B) accordingly

C) for instance

D) in other words

arranged like a very tiny solar system. __67__ 67. A) The atoms

B) The neutrons

C) The smaller

particles

D) The electrons

were like the planets that orbit the sun in the

center. __68__ of each atom was in fact empty 68. A) All B) Most C) Every D) Almost

space, as is the space __69__ the planets in 69. A) beside B) in C) with D) between

our solar system. The electrons __70__ the 70. A) revolve around

B) move about

C) are sent off by

D) go with

nucleus of the atom in this empty space at

incredibly fast rates of speed.

Part IV. Writing (30 minutes)

Stop Smoking

1. Smoking can cause many diseases and pollute the environment. ________

2. Although smoking is good for nothing, _________________________________

3. Efforts must be taken to stop smoking. ______________________________

作业题二

Part I. Reading Comprehension (35 minutes):

Questions 1 to 5 are based on the following passage:

Aristotle, the Greek philosopher, summed up the four chief qualities of money some 2,000 years ago. It must be lasting, easy to recognize, to divide, and to carry about. In other words it must be, 'durable, distinct, divisible and portable'. When we think of money today, we picture it either as round, flat pieces of metal which we call coins, or as printed paper notes. But there are still parts of the world today where coins and notes are of no use. They will buy nothing, and a traveler might starve if he had none of the particular local 'money' to exchange for food.

Among isolated peoples, who are not often reached by traders from outside, commerce usually means barter. There is a direct exchange of goods. Perhaps it is fish for vegetables, meat for grain, or various kinds of food in exchange for pots, baskets, or other manufactured goods. For this kind of simple trading, money isn't needed, but there is often something that everyone wants and everybody can use, such as salt to flavor food, shells for ornaments, or iron and copper to make into tools and vessels. These things--salt, shells or metals--are still used as money in out-of-the-way parts of the world today.

Salt may seem rather a strange substance to use as money, but in countries where the food of the people is mainly vegetable, it is often an absolute necessity. Cakes of salt, stamped to show their value, were used as money in Tibet until recent times, and cakes of salt will still buy goods in Borneo and parts of Africa.

Cowrie sea shells have been used as money at some time or another over the greater part of the Old World. These were collected mainly from the beaches of the Maldives Islands in the Indian Ocean, and were traded to India and China. In Africa, cowries were traded right across the continent from East to West. Four or five thousand went for one Maria Theresa dollar, an Austrian silver coin which was once accepted as currency in many parts of Africa.

Metal, valued by weight, preceded coins in many parts of the world. Iron, in lumps, bars or rings is still used in many countries instead of money. It can be either exchanged for goods, or made into tools, weapons or ornaments. The early money of China, apart from shells, was of bronze, often in flat, round pieces with a hole in the middle, called 'cash'. The earliest of

these are between three thousand and four thousand years old--older than the earliest coins of the eastern Mediterranean.

Nowadays, coins and notes have supplanted nearly all the more picturesque forms of money, and although in one or two of the more remote countries people still keep it for future use on ceremonial occasions such as weddings and funerals, examples of primitive money will soon be found only in museums.

1. The best title for this passage is ______.

A) The Development of Money B) Salt--A Best Form of Money

C) Money D) Primitive Money in Use

2. In some parts of the world a traveller might starve ______.

A) even if his money was of the local kind

B) even if he had no coins or notes

C) if he did not know the local rate of exchange

D) even if he had plenty of coins and notes

3. One type of early Chinese money was _______.

A) made from bones B) called 'cash'

C) better than eastern Mediterranean coins

D) in the form of bronze bars

4. According to the passage, if a traveller goes to a out-of-the-way

country, _______.

A) it's better to take some salt, shells or metals with him

B) it's better to take his own food

C) he will probably starve

D) he should take some coins and notes with him

5. According to the passage, primitive money ______.

A) is almost out of circulation

B) is still used in trade in remote countries

C) will be used in museums

D) was made of metal

Questions 6 to 10 are based on the following passage:

The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what might be called the heroic age of Antarctic exploration. By their tremendous heroism, men such as Shackleton, Scott, and Amundsen caused a new continent to emerge from the shadows, and yet that heroic age, little more than a century old, is already passing. Modern science and inventions are revolutionizing the techniques of former explorers, and, although still calling for courage and feats of endurance, future journeys into these icy wastes will probably depend on motor vehicles equipped with caterpillar traction rather than on the dogs that earlier discoverers found so invaluable.

Few realize that this Antarctic continent is almost equal in size to South America, and an enormous field of work awaits geographers and prospectors. The coasts of this continent remain to be accurately charted, and the mapping of the whole of the interior presents a difficult task to the cartographers who undertake the work. Once their labors are completed, it will be possible to prospect the vast natural resources which scientists believe will provide one of the largest treasure deposits of metals and minerals the world has yet known, and almost inexhaustible sources of copper, coal, uranium, and many other ores will become available to man. Such discoveries will bring about an era of practical exploitation of the Antarctic wastes.

Plans are already on foot to set up permanent bases on the shores of this continent, and what so few years ago was regarded as a "dead continent" now promises to be a most active center of human life and endeavor.

6. The reason the author mentioned Shackleton, Scott and Amundsen in the

first paragraph is probably that they ______.

A) proved that the discovery of the Antarctic was one of the most

interesting of all geographical adventures

B) are improving the techniques for Antarctic exploration

C) created the heroic age of Antarctic exploration

D) contributed much to the exploration of the Antarctic

7. According to the passage, future Antarctic exploration _______.

A) still requires courage and feats of endurance

B) can be performed by machinery

C) can be performed by dogs

D) will mainly rely on charts and maps

8. Before the natural resources of the Antarctic can be exploited and

utilized, ______.

A) people must realize the significance of the exploration of the

new continent

B) an enormous field of work of geographic surveys must be carried

out

C) permanent bases must first be set up on the new continent

D) it must be known how to make natural resources available to man

9. The title of this passage may be _______.

A) Antarctic--A Continent to be Explored

B) Antarctic and its Heroic Age

C) Antarctic--A Mysterious Continent

D) Antarctic--A Continent of Adventure

10. According to the author, the exploration of the Antarctic is of great

significance because the new continent _______.

A) is of the same size as South America

B) is abundant in natural resources

C) will be the place for a heroic age of geographical adventures

D) both A) and B)

Questions 11 to 15 are based on the following passage:

Psychiatric tests show that a well-f person gets much angrier when provoked than an abnormal person does. At the New York State Psychiatric Institute, Dr. James Page and Professor of Psychology Carney Landis of Columbia University studied the reaction of 200 normals and 210 abnormals. They tested their reactions to maddening situations of every type and variety, such as being laughed at and ridiculed, being repeatedly disconnected on the telephone, accidentally hitting their thumb with a hammer, being worked on by a backseat driver, being told to "shut up" and mind their own business, discovering someone cheating in a friendly card game, etc. In almost every instance the anger reaction of the normal group was much more intense than that of the abnormal one.

"This," they reported, "is in accord with other psychiatric findings. For one of the outstanding symptoms of mental unbalance is an emotional apathy." So if you blow your top when

you bang your shin against a piece of furniture, or when your sweetheart goes out with another guy--don't worry about it. It's just a sign that you're normal.

11. The main idea of this passage is that ______.

A) anger is a universal phenomenon among humans

B) psychiatric tests show that a person who gets angry is well-balanced

C) normal persons are apt to get angry much more easily than abnormal

persons

D) normal persons react more intensely to anger-provoking situations

than do abnormal individuals

12. This passage deals mainly with the _______.

A) similarity to previous psychiatric studies of New York State

Psychological Institute's findings concerning anger reaction

B) nature of incidents tending to provoke anger in normals versus

abnormals

C) level of intensity in anger reactions shown by normals versus

abnormals

D) frequency of anger reactions registered by normals versus abnormals

13. The author recommends that, if you tend to become angry, you should _______.

A) treat it as a normal reaction

B) not worry about what has made you angry

C) try to control your anger

D) become concerned

14. The word "apathy" means _______.

A) confusion B) sense C) lack of feeling D) anger

15. The last two sentences of the passage contain _______.

A) the main idea

B) examples showing that normal persons react more intensely to

anger-provoking situations

C) an opinion of Dr. Page and Professor Landis

D) a suggestion from the author about what you should do if you are

in anger

Questions 16 to 20 are based on the following passage:

For the globe as a whole, the ocean is the great regulator, the great stabilizer of temperatures. It has been described as a "savings bank for solar energy, receiving deposits in seasons of want." Without the ocean, our world would be visited by unthinkably harsh extremes of temperature. For the water that covers three-fourths of the earth's surface with an enveloping mantle is a substance of remarkable qualities. It is an excellent absorber and radiator of heat. Because of its enormous heat capacity, the ocean can absorb a great deal of heat from the sun without becoming what we would consider "hot", or it can lose much of its heat without becoming "cold".

Through the agency of ocean currents, heat and cold may be distributed over thousands of miles. It is possible to follow the course of a mass of warm water that originates in the tradewind belt of the Southern Hemisphere and remains recognizable for a year and a half through a course of more than 7,000 miles. This re-distributing function of the ocean tends to make up for the uneven heating of the globe by the sun. As it is, ocean currents carry hot equatorial water toward the poles and return cold water equator-ward by such surface drifts as the Labrador Current

and Oyashio, and even more importantly, by deep currents. The redistribution of heat for the whole earth is accomplished about half by the ocean currents, and half by the winds.

At that thin interface between the ocean of water and the ocean of overlying air, lying as they do in direct contact over by far the greater part of the earth, there are continuous interactions of tremendous importance.

The atmosphere warms or cools the ocean. It receives vapors through evaporation, leaving most of the salts in the sea and so increasing the salinity of the water. With the changing weight of that whole mass of air that envelops the earth,t he atmosphere brings variable pressure to bear on the surface of the sea, which is depressed under areas of high pressure and springs up in compensation under the atmospheric lows. With the moving force of the winds, the air grips the surface of the ocean and raises it into waves, drives the currents onward, lowers sea level on lee shores, and raises it on windward shores.

But even more does the ocean dominate the air. Its effect on the temperature and humidity of the atmosphere is far greater than the small transfer of heat from air to sea. It takes 3,000 times as much heat to warm a given volume of water 1 degree Celsius as to warm an equal volume of air by the same amount. The heat lost by a cubic meter of water on cooling 1 degree Celsius would raise the temperature of 3,000 cubic meters of air by the same amount. Or to use another example, a layer of water a meter deep, on cooling 1 degree Celsius could warm a layer of air 33 meters thick by 10 degrees Celsius. The temperature of the air is intimately related to atmospheric pressure. Where the air is cold, pressure tends to be high; warm air favors low pressures. The transfer of heat between ocean and air therefore alters the belts of high and low pressure; this profoundly affects the direction and strength of the winds and directs the storms on their paths.

16. The redistribution of heat for the whole earth is accomplished

_______.

A) primarily by the oceans B) by low pressure areas

C) about half by the ocean currents and half by the winds

D) by the equator

17. The oceans of the world have been compared to a great regulator

because they ______.

A) give off heat B) absorb heat

C) warm the atmosphere D) store and distribute heat

18. Warm water is carried by ocean currents from the ______.

A) South Pole toward the equator B) equator toward the North Pole

C) North Pole toward the South Pole

D) equator toward the poles

19. Ocean currents which run deep below the surface of the ocean ______.

A) are cold currents running from the poles to the equator

B) are warm currents running from the poles to the equator

C) are not influenced by surface currents

D) have a higher salt content than surface currents

20. The transfer of heat between ocean and air _______.

A) cools the ocean B) is minimal

C) heats the air D) changes the belts of high and

low pressure

Part II. Vocabulary and Structure (20 minutes):

21. It took them a long time to ______ again after their quarrel.

A) be friends B) have friends C) make friends D) know friends

22. The shop assistant went ______ the shopping list and said that what I wanted was out of stock.

A) after B) with C) over D) round

23. A group of five policemen was soon set up to look ______ this

robbery.

A) back B) through C) over D) into

24. Jane is a nice girl who is easy to get ______ with.

A) along B) over C) across D) by

25. His wrong ______ in reading has mis-communicated the message he

meant to pass.

A) stop B) break C) interval D) pause

26. We have a good discussion ______ the difference between use and

usage in English.

A) concerned B) concerning

C) concerned over D) concerning of

27. Hangchow is ______ for its beautiful lake in the city proper.

A) notified B) informed C) noted D) notorious

28. I knew the doctor was trying to keep ______ the knowledge of the

exact nature of my illness.

A) in B) from C) back D) off

29. What do the letters ECUCT stand ______?

A) by B) out C) for D) up for

30. Are you tired? Can you ______ any longer?

A) hold on to B) hold to C) hold back D) hold out

31. The fire is ______ a kettle of water.

A) too hot to boil B) hot enough to boil

C) so hot that to boil D) hot enough as to boil

32. I think you need ______.

A) to have examined your eyes B) to be examining your eyes

C) to examine your eyes D) to have your eyes examined

33. I've spent much time ______ these books.

A) to read B) reading C) for reading D) to reading

34. ______ to somebody, a British person often shake hands.

A) On being introduced B) On introducing

C) When introducing D) While introducing

35. Ships _______ goods.

A) are used to ship B) use to ship

C) are used to shipping D) used to shipping

36. I remember _______ the book last week. It was quite interesting.

A) to read B) reading

C) to be reading D) to have been read

37. He _______ a joke last night.

A) spoke B) made C) said D) told

38. The Government have to look out for the rights of ______ citizens.

A) their B) his C) its D) one's

39. I can't give you a reply yet. I'd like to have ______ more time to

consider it.

A) quite B) very C) fairly D) rather

40. ______ want the requirements changed.

A) The leaders each B) Each of the leaders

C) The leader each D) Each leader

41. The doctor insisted that he ______ her before.

A) treat B) treated C) had treated D) should treat

42. I wish I ______ to study English years ago.

A) started B) start C) should start D) had started

43. ______ I saw him I knew what he had said was correct.

A) A moment B) In a moment C) The moment D) For a

moment

44. Color is to the painter ______ to the author.

A) that words are B) what are words

C) what words are D) that are words

45. They will leave for America ______ four hours.

A) in B) from C) till D) to

46. When in grammar school, ________.

A) his teacher taught him to read. B) he was taught to read

C) his teacher taught him how to read D) he was taught reading

47. ______ held responsible.

A) Under no circumstances he should be

B) Should he under no circumstances be

C) Under no circumstances should he be

D) Under no circumstances should be he

48. ______ of us are leaving tomorrow.

A) Some one B) No one C) Any one D) None

49. I'll give it to ______ might need it.

A) who B) whom C) whatever D) whoever

50. They will have come ______ five o'clock.

A) by B) on C) till D) within

Part III Cloze (15 minutes)

The safety of ships at sea does not depend only on the arrangments made in the ships themselves. Dangerous 51__may be seen in 51. A) coasts and rocks

B) rocks and ships

C) courses and banks

D) ships and persons

the daytime, but they are _52_safe navigation 52. A) not any

B) worried for

C) also a danger in

D) a threat to

at night.

Lighthouses are _53_ 53. A) quickly

B) timely

C) therefore

D) even

erected ar such places to _54_sailors of

the danger. 54. A) the B) give C) warn D) tell

Modern lighthouses are _55_at all dangerous places 55. A) high B) stood C) lifted D) put up

_56_ the courses followed by ship. 56. A) near to

B) nearly

C) near

D) next

_57_ some rocky coasts several lighthouses may be built not far from 57. A) on B) in C) at D) for

_58_and in order that the sailors 58. A) the other

B) the ship

C) the lighthouse

D) each other

on a ship may know which is _59_, they have 59. A) lighthouse

B) that

C) it

D) which

different arrangements of lights. One lighthouse will _60_a single flash at 60. A) provide

B) send off

C) give

D) put

regular _61; another may give two flashes; 61. A) times

B) intervals

C) events

D) happenings

_62_ may give two followed by one; and so on.

By watching the lights the navigator is able 62. A) another

B) the other

C) the third

D) a third

_63_ exactly where he is, and he can set his 63. A) decide

B) make

C) look

D) assure

course_64_. In the approaches 64. A) with confidence

B) regularly

C) in a fine way

D) later on

_65_ some ports two continuous lights are 65. A) of

B) forward

C) in

D) to

set up, one above the other _66_some distance 66. A) or

B) in

C) but

D) on

behind; _67_ they appear from the sea one above 67. A) if only

B) while

C) before

D) when

the other, _68_ is on the right course; but 68. A) the light

B) the lighthouse

C) the ship

D) the danger

if they do not, the captain knows that he

is __69__ his safe course and likely 69. A) in B) away C) out D) off

__70__ a rock or the bottom of the sea. 70. A) to strike

B) strike

C) strikes

D) striking

Part IV. Writing (30 minutes):

What We Should Eat

1. Food, like air, is essential to human beings. ________________________

2. But some foods can be harmful to some people. ________________________

3. The choice of food has become more and more important. _______________

作业题三

Part I. Reading Comprehension (35 minutes):

Questions 1 to 5 are based on the following passage:

Robert Spring, a 19th century forger, was so good at his profession that he was able to make his living for 15 years by selling false signatures of famous Americans. Spring was born in England in 1813 and arrived in Philadelphia in 1853 to open a book store. At first he prospered by selling his small but genuine collection of early U.S. autographs. Discovering his ability at copying handwriting, he began imitating signatures of George Washington and Ben Franklin and writing them on the title pages of old books. To lessen the chance of detection, he sent his forgeries to England and Canada for sale and circulation.

Forgers have a hard time selling their products. A forger can't approach a respectable buyer but must deal with people who don't have much knowledge in the aged paper of the title page, and who can't treat paper and ink with chemicals.

In Spring's time, right after the Civil War, Britain was still fond of the Southern states, so Spring invented a respectable maiden lady known as Miss Fanny Jackson, the only daughter of

General "Stonewall" Jackson. For several years Miss Fanny's financial problems forced her to sell a great number of letters and manuscripts belonging to her famous father. Spring had to work very hard to satisfy the demand. All this activity did not prevent Spring from dying in poverty, leaving sharp-eyed experts the difficult task of separating his forgeries from the originals.

1. Why did Spring sell his false autographs in England and Canada?

A) There was a greater demand there than in America.

B) There was less chance of being detected there.

C) Britain was Spring's birthplace.

D) The prices were higher in England and Canada.

2. After the Civil War, there was a great demand in Britain for ______.

A) Southern money

B) signatures of George Washington and Ben Franklin

C) Southern manuscripts and letters

D) Civil War battle plans

3. Robert Spring spent 15 years _______.

A) running a book store in Philadelphia

B) corresponding with Miss Fanny Jackson

C) as a forger D) as a respectable dealer

4. According to the passage, forgeries are usually sold to ______.

A) sharp-eyed experts B) persons who aren't experts

C) book dealer D) owners of old books

5. Who was Miss Fanny Jackson?

A) The only daughter of General "Stonewall" Jackson.

B) A little-known girl who sold her father's papers to Robert Spring.

C) Robert Spring's daughter.

D) An imaginary person created by Spring.

Questions 6 to 10 are based on the following passage:

Long ago men learned that the world of nature is built with mathematical exactness according to refined and powerful laws: every bee strokes its wings exactly 440 times a second to propel itself forty miles an hour; the eye of every fly has exactly 7,000 lenses; every spider's thread is composed of 300 single threads.

The progress of civilization itself can be measured by its range of mathematics. The early Egyptians knew enough of geometry to build the pyramids and the Greeks used trigonometry to measure the circumference of the earth two thousand years before Columbus sailed. European civilization combined geometry and trigonometry with the decimal system of the Arabs to produce the maps with which the Europeans explored the world. In a later century, mathematicians studied the pendulum of the newly invented clock and created the language of calculus to measure motion.

The yardstick of measurement today must cover everything from units tinier than atoms to distances of millions of light years. Speed and accuracy are vital. In navigating amid planets and stars, man must have the help of some kind of machine calculators for fast and absolutely accurate information.

6. The author shows how the exactness of nature's laws is reflected

in _______.

A) man's civilizations B) the creatures of nature

B) machine calculators D) all of the above

7. The progress of civilization can be measured by ______.

A) the application of mathematical principle

B) man's desire to define nature's laws

C) the skill with which man has applied mathematics

D) man's success in defining natural laws

8. This passage discusses mathematics chiefly as a _______.

A) means of expressing ideas B) research tool

C) recent development D) means of measurement

9. It seems that without the help of calculating machines such as

computers ______.

A) space flight would be impossible

B) a yardstick could be used

C) the speed and accuracy would be important

D) spacecraft could not fly fast enough

10. The author implied that ______.

A) the world of nature is built with mathematical exactness

B) progress in civilization demands even better mathematical tools

C) in ancient times there was little need for mathematics

D) man must still develop a yardstick of measurement that will cover

light years

Questions 11 to 15 are based on the following passage:

Fire can be thought of as any combustion process intense enough to emit light. It may be a quietly burning flame or the brilliant flash of an explosion.

A typical combustion process is the burning of gasoline in an automobile engine. The vaporized fuel is mixed with air, compressed in the engine's cylinder, and ignited by a spark. As the fuel flames up, the heat produced flows into the adjacent layer of unburned fuel and ignites it. In this way a zone of fire spreads throughout the fuel mixture until the combustion is complete. This moving zone of burning fuel is called a combustion wave.

The speed at which such a combustion wave travels through a fuel mixture is called the burning velocity of the mixture. The burning velocity of a gas such as methane quietly burning in air is only about one foot per second. By comparison, the burning velocity of more reactive combinations such as the rocket fuels, hydrogen and fluorine, can be hundreds of feet per second. If the fuel flows at the same speed as the combustion wave, the result is a steady flame, like the one in your kitchen gas burner. In the kitchen burner a jet of gas mixed with air flows from the openings in the head of the burner. If the velocity of the fuel mixture flowing from the opening is greater than its burning velocity, the flame blows out.

In jet engines speeding through the air at 500 to 600 miles per hour the engine's flame is sometimes blown out by the blast of air entering the combustion chamber at high speeds. Jet pilots call this condition "flameout".

Combustion can sometimes occur very slowly. A familiar example of slow combustion is the drying of ordinary oil-based paint. In this chemical reaction, called oxidation, the oxygen in the air reacts with the drying oil in the paint to provide a tough film. The linseed oil molecules link together, forming an insoluble coating. Another example is the hardening and cracking of rubber with age. One way to avoid this is to incorporate certain chemicals called inhibitors into the compound.

How can the chemical reaction involved in such a quiet process as the drying of paint also

produce spectacular flames and explosions? The main difference between the two is the temperature at which they occur.

At lower temperatures the reaction must take place over a long time. The heat which is slowly produced is dissipated to the surroundings and does not speed up the reaction. When the heat produced by the low-temperature reaction is retained instead of being dissipated, the system breaks into flame. This is the process that accounts for major fire hazard, spontaneous combustion, aas when oily rags suddenly burst into flame.

In a flame or explosion, the reactions are extremely fast. In many chemical processes, however, such a rapid oxidation process would be extremely destructive.

11. The major difference between oxidation and fire is that ______.

A) their burning velocities are different

B) oxidation is a chemical reaction while fire is a physical reaction

C) oxidation does not create heat

D) they occur at different temperatures

12. Rocket fuels are more explosive than methane gas because of ______.

A) the temperature at which combustion takes place

B) the degree of oxidation accomplished by the combustion process

C) the location of the combustion

D) the greater burning velocity

13. A steady flame in a gas range is the result of ______.

A) a burning velocity equal to the combustion wave

B) fuel being supplied at the same rate as the combustion wave

C) fuel being supplied at a higher rate than that of the burning

velocity

D) a free-flowing supply of air from the openings in the head of the

burner

14. Which of the following could not be defined as combustion?

A) A quietly burning flame. B) A radiator giving off heat.

C) The drying of oil-based paint. D) An explosion.

15. An attempt on the part of the author of this passage to give a more

informal tone to his writing occurs in ______.

A) Paragraph 2 B) Paragraph 4

C) Paragraph 7 D) Paragraphs 5 and 7

Questions 16 to 20 are based on the following passage:

Blood vessels running all through the lungs carry blood to each air sac, or alveolus, and then back again to the heart. Only the thin wall of the air sac and the thin wall of a capillary are between the air and the blood. So oxygen easily diffuses from the air sacs through the walls into the blood, while carbon dioxide easily diffuses from the blood through the walls into the air sacs.

When blood is sent to the lungs by the heart, it has come back from the cells in the rest of the body. So the blood that goes into the wall of an air sac contains much dissolved carbon dioxide but very little oxygen. At the same time, the air that goes into the air sac contains much oxygen but very little carbon dioxide. You have learned that dissolved materials always diffuse from where there is more of them to where there is less. Oxygen from the air dissolves in the moisture on the lining of the air sac and diffuses through the lining into the blood. Meanwhile, carbon dioxide diffuses from the blood into the air sac. The blood then flows from

大学英语2级教学大纲(全新版)

《大学英语》二级课程教学大纲 (College English Band 2) 一、简要说明： 参照国家教育部制订的《大学英语课程教学要求》, 同时根据我校教学资源、学生入学水平以及所面临的社会需求等实际情况, 特制订本《大学英语教学大纲》,作为我校组织非英语专业本科、专升本学生英语教学的主要依据, 用于指导本校的大学英语教学。大学英语课程教学包括听、说、读、写四个部分。 二、课程性质、地位和任务： 大学英语教学是高等教育的一个有机组成部分，大学英语课程是大学生必修的一门基础课程。大学英语教学是以英语语言知识与应用技能、学习策略和跨文化交际为主要内容，以外语教学理论为指导，并集多种教学模式和教学手段为一体的教学体系。 大学英语的教学目标是培养学生英语综合应用能力，特别是听说能力，使他们在今后工作和社会交往中能用英语有效地进行口头和书面的信息交流，同时增强其自主学习能力、提高综合文化素养，以适应我国经济发展和国际交流的需要。 三、教学基本要求和方法： （一）教学基本要求 1.听力能力要求：能听懂英语授课，能听懂日常英语谈话和一般性题材讲座，能基本听懂慢速英语节 目，语速为每分钟110词左右，能掌握其中心大意，抓住要点。能运用基本的听力技巧。 2.口语能力要求：能在学习过程中用英语交流，并能就某一主题进行讨论，能就日常话题和英语国家 的人士进行交谈，能就所熟悉的话题经准备后作简短发言，表达比较清楚，语音、语调基本正确。 能在交谈中使用基本的会话策略。 3.阅读能力要求：能基本读懂一般性题材的英文文章，阅读速度达到每分钟60词。在阅读篇幅较长、 难度略低的材料时，阅读速度达到每分钟90词。能基本读懂国内英文报刊，掌握中心意思，理解主要事实和有关细节。能读懂工作、生活中常见的应用文体的材料。能在阅读中使用有效的阅读方法。 4. 写作能力要求：能完成一般性写作任务，能描述个人经历、观感、情感和发生的事件等，能写常见 的应用文，能就一般性话题或提纲在半小时内写出90词的短文，内容基本完整，用词恰当，语意连贯。能掌握基本的写作技能。 5.推荐词汇量：掌握的词汇量应达到2800个单词和800个词组，其中1000为积极词汇。要求学生能 够在认知的基础上熟练运用。 （二）教学基本方法 1. 授课以英语为主，汉语为辅；精讲多练，讲析与操练相结合；以学生为中心，积极引导学生参与小 组讨论，角色扮演等课堂活动；根据学生具体情况，适当融入各类有针对性的教学方法，如：句型操练，背诵与默写；运用启发式教学手段，调动学生学习积极性，激发学生思辨能力。 2. 课内外相结合，讲习与讨论相结合；根据学生具体情况，适当增加文化内容和背景知识的介绍; 适 当采用有针对性的教学方法，如:限时阅读，归纳总结等。 四、授课教材及主要参考书目： 1. 《全新版大学英语》（综合教程）第二册 2. 《全新版大学英语》（综合教程教师用书）第二册 3. 《大学体验英语听说教程》第二册 4. 《大学体验英语快速阅读教程》第二册 五、学分和学时分配： 本课程共256学时，16学分。二级64学时，4学分。根据我校学生的实际情况，本学期原则上完成8个单元《全新版大学英语（综合教程）》讲授内容，每单元6学时；完成18个单元《大学体验英语快速阅读教程》讲授内容，每单元0.5学时。另外4学时安排小测与期末复习。学时安排可根据具体情况适当调整。

大学体验英语综合教程2课后答案第三版

大学体验英语综合教程2课后翻译 UNIT1 1A P15 4. 1.elected, 2.minimum, 3.distinct, 4.responsibility, 5.pursue, 6.exploit, 7.restrict, 8.equip, 9.granted, 10.awarded 5. 1.at large, 2.on the basis of, 3.in support of, 4.apply for, 5.is aiming at 1任何年满18岁的人都有资格投票(vote)。(be eligible to) Anyone over the age of 18 is eligible to vote. 2.每学期开学前，这些奖学金的申请表格就会由学校发给每一个学生。(apply for, scholarship) A form to apply for these scholarships is sent by the university to each student before the start of each semester. 3. 遵照医生的建议，我决定戒烟。(on the advice of) On the advice of my doctor, I decided to give up smoking. 4.公园位于县城的正中央。(be located in) The park is located right in the center of town. 5.这所大学提供了我们所需的所有材料和设备。(facilities) The university provides all the materials and facilities we desire. 1B p21 13. 1.challenge, 2.had transformed, 3.engage, 4.occurred, 5.urged, 6.cancel, 7.prejudice, 8.foundation, 9.beliefs, 10.constructive 14. 1.rests with, 2.in recognition of, 3.in fact, 4.provides for, 5.keep...up 1. 他内心深处知道，他们永远也不会再见了。(in one’s heart) He knew in his heart that they would never meet again. 2.他们同意出版他的第一本书后，他终于感到自己快要成功了。(on the road to) He finally felt that he was on the road to success after they agreed to publish his first book. 3.他停下来喝了一口(a sip of)水，然后继续讲话。(resume) He stopped to take a sip of water and then resumed speaking. 4.这个大项目使我们忙得今年都无法安排一次度假了。(engage; so much that) The big project engages us so much that we can’t manage to take a holiday this year. 5.氧气(oxygen)是气体中最重要的一种，正如水是液体中最重要的一种一样。(just as) Just as water is the most important of liquids, oxygen is the most important of gases. UNIT2 2A p37 4. 1.version, 2.publications, 3.click, 4.spotted, 5.refugees, 6.entries, 7.financial, 8.full-time, 9.detailed, 10.annual 5. 1.set up, 2.came across, 3.referred...to , 4.check out, 5.learnt of / learned of 1. 警察们正忙着填写关于这场事故的各种表格。(fill out) The policemen are busy filling out forms about the accident.

大学体验英语3 答案(第三版)

1 Lead-in1. human beings 2. powered 3. greenhouse 4. far away 5. make a difference 6. breathe in 7. decreasing performance 8. four inches high 9. campaign 10. Encourage 4greenhouse residence communicate wired humming message sensitivity indicator 5、1. d 2. a 3. b 4. e 5. c 1. tone threatening 2. sensitivity smell 3. affected climate 4. tap resources 5. concerns environment 6、1. subtle 2. were overtaken 3. species 4. decades 5. boundaries 6. audio 7. directly 8. focus 9. tone 10. Cupped 7、1. at that rate 2. For the sake of 3. come to 4. by hand 5. vice versa 8、1. 年轻人有时会抱怨无法和父母沟通。(communicate with) Answer: Young people sometimes complain of being unable to communicate with their parents. 2. 能在中国云南的一个苗家村落住下来一直是玛丽长久以来的梦想，现在她终于梦想成真了。(to take up residence) Answer: It has been Mary’s long cherished dream to take up residence in a Miao village in Yunnan, China. Now her dream has finally come true. 3. 家养的动物习惯于依赖人，因此很难能在野外活下来。(survive) Answer: Domestic animals are used to depending on humans, so it is difficult for them to survive in the wild. 4. 他突然有种恐惧感，觉得自己会因为经济不景气而被公司裁员。(overtake) Answer: He was suddenly overtaken by a fear that he would be laid off by the company because of depression. 5. 我估计公交路线上堵车了，因为我都等了30分钟也没见一辆车开过去。(figure) Answer: I figure that there is a traffic jam on the route of the bus, for I’ve waited for 30 minutes without seeing one passing by. 15、Read and translate 4. Translate the following sentences into English. 1. 十年前，当公司还处在生产的鼎盛时期时，我们就决定投资新技术，将公司转型为技术密集型企业。由于拥有先进技术，我们在激烈动荡的市场竞争中脱颖而出。现在我们的成本下降了百分之三十，销售业绩却上涨了三分之二，利润翻了一番。Answer: Ten years ago, when our company was at the height of its production, we decided to invest in new technologies, so as to turn our company into a technology-intensive one. With our advanced technologies, we out-competed all our competitors in the rough and tumble of the marketplace. Now we have reduced the cost by 30 percent, even as / while our sales have grown by two-thirds and the earnings have doubled. 2. 我们将可持续性定义为保持企业盈利，但不以环境为代价。从商业的角度看，这合理吗？事实上，在追求可持续发展目标的过程中，我们的收益已经超过了所有的投资和开支。可持续发展的推进起到了如此重要的作用，帮助我们撑过了史上最深重的经济衰退。Answer: We define sustainability as keeping a business profitable, but not at the expense of the environment. Does this make good business sense? Actually, what we get has more than offset all the investments and expenses incurred in pursuit of the goal of sustainable development. The boost of sustainability made such a difference that it helped us survive the deepest recession in the history.

Book I译文(大学体验英语)英语第一册

Book I Unit 1 College Life A篇学无止境 故事发生在一所东部大学里。那是终考的最后一天。一幢教学楼的台阶上围着一群大四的工科生，都在谈论即刻就要开始的考试。他们脸上都带着自信。这是毕业前的最后一场考试了，考完后，即是毕业典礼。然后他们将各奔前程。 话题转到了工作上，有的谈起了找好的工作，有的则谈论着要找的工作。4年的大学学习给了他们自信，使他们觉得自己足以征服世界。 眼前这场考试，不过是一碟小菜罢了。老师已经说过可以携带所需的任何书本或笔记，只要不在考试时交头接耳就行了。 学生们兴高采烈地步入教室。试卷发下来了。看到只有5道论述题，他们一个个脸笑上开了花。 3小时过去后，老师开始收卷。学生们先前的那份自信再也看不到了，而是满脸惊慌。老师握着试卷，面对全班，大家都沉默不语。 她扫了一眼眼前这一张张不安的脸，问道："5道题全答完的有多少？" 没人举手。 "做完4道的有多少？" 还是没人举手。 "3道呢？两道呢？" 学生们再也坐不住了。 "那么一道呢？总有做完一道的吧。" 教室里依然鸦雀无声。老师搁下试卷，说道："这我早料到了。" "我只是想让你们牢牢记住，即使你们已经完成了4年工科学习，这个领域你们还有很多东西要学。其实，你们答不出的这些问题在日常生活中很常见。"她笑了笑，接着说，"这门课你们都能通过，但要记住，你们虽然已经大学毕业，但学习才刚刚开始。" 多年后，我已忘了这位老师的姓名，但牢牢记住了她的教诲。 B篇回眸大学 4年的时光已经过去，这一刻终于来临了。不到两周，我就要毕业了。此刻回想起来，我仍不敢相信时光飞逝如斯。我依然记得第一天去上课时的情景，我一边望着课表背面的地图，一边打听教学楼在哪儿。现在我已是大四的学生，常会以羡慕的眼光看着一年级的新生。每天我都祈愿时间会凝滞，接下来的两周过得更慢一些。许多我认识的人都迫不及待地想要毕业，我却恰恰相反。我宁愿时光倒流，再度重温大学生活的每一天。 大学生活使我学到了许许多多，而且大都是在课外学到的。大二的生活也许是我生命中最值得留念的一段。正是这一年，我终于让妈妈相信我住校没有问题，她终于让我去了。正是这一年，我结交了一些终身好友，历经多次的成功与失败使我对自己有了更多的了解。大二生活还有着种种新的尝试，到山地去野营，把信手涂鸦的诗投到报社，还在课堂上给老师画漫画。 走在校园熟悉的路上，不知不觉中就陷入了深深的反思和对往昔的回忆中。发觉自己好想从头来过，再次体味大学生活的欢娱和激动。一想到毕业心里就一阵阵恐慌。从记事起我就一直在读书。我觉得还有很多东西想学，可是却不得不毕业了。世界如此之大，可能发生的事情太多太多。过去4年中，我一直被一张安全的网包围着。学生这个身份总能让人感到欣慰，使我可以躲开外面世界的无情现实。 不到两周就要离校了，每每想到就要毕业，我就打心眼儿里感到不安。因为我从记事起就一直是名学生。我觉得自己是在回避毕业。每当别人问起我大学毕业后打算做什么，我就想大声尖叫，我不知道以后想做些什么。甚至不敢想像早上醒来没有课上会是什么样的情形。

大学体验英语综合教程2 第三版 U5 Passage A 课后答案及课文翻译

Unit 5

Reference Translation Unit 5 PA 奉告学子：教育是关键 比尔·盖茨 每年都有数以百计的学生给我发电子邮件，要我就接受教育给他们提建议。他们想知道该学些什么，或者可不可以从大学辍学，因为我就没有读完大学。 也有不少家长给我写信，为子女寻求指导。他们问：“我们怎样才能把孩子引向成功之路？” 我的基本忠告很简单，而且是发自内心的：全力获得最佳教育，充分利用高中和大学，学会如何学习。 不错，为创建微软，我未完成大学学业，不过辍学之前我已经在哈佛呆了三年，而且我

真心希望有一天能重返校园。以前我也说过，谁也不应该辍学，除非他坚信自己正面临着一个一生仅有一次的机会，但就算在那个时候也还是应该深思熟虑。 在俄亥俄州教六年级的老师凯西·克里德兰写道，“我的好几个学生声称你根本没有读完高中。因为你成功了，我的学生就觉得他们也可以不必要接受良好的教育。” 我高中毕业了的! 计算机行业中确实有很多人没有读完大学，但是我从来没有见过有谁高中没读完就成功创业的。确切地说，我认识的人当中根本没有高中辍学的，更没有高中辍学后事业成功的。 我的公司创立早期，有一个相当出色的兼职程序员，声称要从高中辍学来做全职。我们叫他不要这么做。 我们公司里确实有好些人没有读完大学，但我们不希望人们辍学。谁要想在我们公司谋职，有毕业证书肯定会优先考虑。 不一定只有在大学才能获取信息，在图书馆也可以学习。但人家递给你一本书并不能自动地让你学到东西。你需要向别人学习，提问题，将设想付诸实施，设法验证自己的能力。这一切，往往不是读一两本书就可以做得到的。 接受的教育应该是广泛的，虽然对某些领域情有独钟也不失为一件好事。 读高中时，我有一段时间醉心于软件编写，但大部分时间里，我的学习兴趣相当广泛。我父母鼓励我这么做，对此我感激不尽。 大学期间，我修了很多不同的课程，但我从头至尾只选修了一门计算机课。我读书涉猎很广。 有位家长写信说，她15岁的儿子“钻进计算机无底洞里了”。他的网站设计课得了“A”，但别的科目分数都在下降，她写道。 这个孩子犯了一个错误。高中和大学给你提供了最佳机会，你可以广泛学习——数学，历史，各种学科——有机会跟着别的孩子一起做项目，亲身感受到群体的动力。你对计算机、舞蹈、语言或其他任何的科目有深入的兴趣也无可厚非，但太偏执而舍弃学习广度就不是一件好事了。 如果高中阶段兴趣过于集中，你会面临两个问题。第一个就是进了大学以后你很可能没法改变。另一个问题就是如果分数不够高，你就很难考入大学，而无法向那些积极性很高，很有才能的学生一起学习，他们可以真正帮助你了解这个世界。 大学期间可以适当考虑专业的问题。深入掌握自己感兴趣的领域的专业知识，能够引导你走向成功，除非这个专业没有发展前途，或者你并不很擅长这个方面。读研究生是获取专业知识的一个途径，虽然从纯经济角度来看，大学毕业后再接受教育不一定算是明智的投资。 4. 1. was sinking 2. specialty 3. purely 4. discourage 5. unlikely 6. dynamics 7. actually 8. reasonably 9. have perceived 10. extended 5. 1.took a deep interest in 2. fell into 3. sign up

大学体验英语3综合教程课文翻译

Unit 1> Caring for Our Earth Passage A Frog Story 蛙的故事 A couple of odd things have happened lately. 最近发生了几桩怪事儿。 I have a log cabin in those woods of Northern Wisconsin. I built it by hand and also added a greenhouse to the front of it. It is a joy to live in. In fact, I work out of my home doing audio production and environmental work. As a tool of that trade I have a computer and a studio. 我在北威斯康星州的树林中有一座小木屋。是我亲手搭建的，前面还有一间花房。住在里面相当惬意。实际上我是在户外做音频制作和环境方面的工作——作为干这一行的工具，我还装备了一间带电脑的工作室。 I also have a tree frog that has taken up residence in my studio. 还有一只树蛙也在我的工作室中住了下来。 How odd, I thought, last November when I first noticed him sitting atop my sound-board over my figured that he(and I say he,though I really don’t have a clue if she is a he or vice versa) would be more comfortable in the greenhouse. So I put him in the greenhouse. Back he came. And stayed. After a while I got quite used to the fact that as I would check my morning email and online news, he would be there with me surveying the world. 去年十一月，我第一次惊讶地发现他（只是这样称呼罢了，事实上我并不知道该称“他”还是“她”）坐在电脑的音箱上。我把他放到花房里去，认为他待在那儿会更舒服一些。可他又跑回来待在原地。很快我就习惯了有他做伴，清晨我上网查收邮件和阅读新闻的时候，他也在一旁关注这个世界。 Then, last week, as he was climbing around looking like a small gray / green human, I started to wonder about him. 可上周，我突然对这个爬上爬下的“小绿人或小灰人”产生了好奇心。 So, there I was, working in my studio and my computer was humming had to stop when Tree Frog went across my stopped and turned around and just sat there looking at ,I sat back and looked at him. For five months now he had been riding there with me and I was suddenly overtaken by an urge to know why he was there and not in the greenhouse,where I figured he’d live a happier frog life. 于是有一天，我正在工作室里干活，电脑嗡嗡作响。当树蛙从我面前爬过时，我不得不停止工作。他停下了并转过身来，坐在那儿看着我。好吧，我也干脆停下来望着他。五个月了，他一直这样陪着我。我突然有一股强烈的欲望想了解他：为什么他要待在这儿而不乐意待在花房里？我认为对树蛙来说，花房显然要舒适得多。 “Why are you here,” I found myself asking him. “你为什么待在这儿？”我情不自禁地问他。 As I looked at him, dead on, his eyes looked directly at me and I heard a tone. The tone seemed to hit me right in the center of my mind. It sounded very nearly like the same one as my computer. In that tone I could hear him “say” to me, “Because I want you to understand.” Yo. That was weird. “Understand what?” my mind jumped in. Then, after a moment of feeling this communication, I felt I understood why he was there. I came to understand that frogs simply want to hear other frogs and to

大学体验英语第一册Unit1词汇表

Unit 1 College Life (P169) sample n-count: (1) 样品;货样A sample of a substance or product is a small quantity of it that shows you what it is like. Eg: ---- We're giving away 2000 free samples. ---- They asked me to do some sample drawings. (2) (用于化验的)取样,样本A sample of a substance is a small amount of it that is examined and analyzed scientifically. Eg: ---- They took samples of my blood. Verb: (1) 品尝;试尝If you sample food or drink, you taste a small amount of it in order to find out if you like it. Eg: ---- We sampled a selection of different bottled waters. 我们品尝了一系列不同品牌的瓶装水。 (2) 体验;尝试If you sample a place or situation, you experience it for a short time in order to find out about it.

Eg: ---- ...the chance to sample a different way of life. definitely adv.清楚地;明显地;肯定地;当然You use definitely to emphasize that something is the case, or to emphasize the strength of your intention or opinion Eg: ---- I'm definitely going to get in touch with these people. adj.definite明确的；一定的；肯定；有把握 Eg: ---- Mary is very definite about this. n.definition定义；规定,明确；[物]清晰度；解释<复数definitions> Eg: ----我给这个字下了定义。 I made a definition for this word. diversity n. : (1) 多样性;多样化;多元性The diversity of something is the fact that it contains many very different elements. Eg: ---- ...the cultural diversity of British society.

大学体验英语快速阅读教程2修订版翻译

Unit 1 The Evolving Notion of Home “Home, sweet home” is a phrase that expresses an essential attitude in the United States. Whether the reality of life in the family house is sweet or not so sweet, the ideal of home has great importance for many people. This ideal is a vital part of the American dream. This dream, dramatized in the history of nineteenth-century European settlers of the American West, was to find a piece of land, build a house for one’s family, and start a farm. These small households were portraits of independence: the entire family — mother, father, children, even grandparents — living in a small house and working together to support each other. Everyone understood the life-and-death importance of family cooperation and hard work. Although most people in the United States no longer live on farms, the ideal of home ownership is just as strong in the twentieth century as it was in the nineteenth. When U.S. soldiers came home after World War II, for example, they dreamed of buying houses and starting families. So there was a tremendous boom in home building. The new houses, typically in the suburbs, were often small and nearly identical, but they satisfied a deep need. Many saw the single-family house as the basis of their way of life. For the new suburbanites of the 1950s and 1960s, however, life inside their small houses was very different from life on a farm. First, the family spent much less time together in the house. The father frequently drove, or commuted, as much as an hour to work each morning. The children went to school all day and played after school with neighborhood children. The suburb itself was sometimes called a bedroom community because people used their houses basically for sleeping. Second, the suburb was not a stable community: Families moved frequently as the fathers sought upward mobility — better-paying jobs and bigger houses. Although the idea of home was still as precious as always, it had taken on a different meaning. In the 1970s and 1980s, as more women entered the labor force, the family spent even less time together. But the picture is changing: People can now telecommute, or work at home, while being linked to the office by means of their computers. More and more people can now stay at home. So the old expression could change from

大学体验英语3-第三版-课后答案

Unit 1 4. Fill each of the blanks with an appropriate word. I found a tree frog in my studio some months ago. I took it to my greenhouse , as I thought it would be a better place for the frog.But it came back and insisted taking the residence in th e studio. Why? I couldn’t get an idea. Then, after five months of being together, we seemed to be able to communicate with each other. It may sound wired , but I did feel I came to understand what it wanted me to do. The frog came to me probably attracted by the humming tone of my computer, which sounded like that of other tree frogs, or with a message to tell me that frogs were dying around the world because of their sensitivity to the pollution and global climate change. As frogs are an“indicator species”, what has happened to them may happen to us, if we sit back and do nothing. We must act now, or it would be too late. 六、 audio 声音的，听觉的boundary 分界线 cup (v.) 使成杯状（捧 起） decade 十年 directly 直接的 focus 集中注意力 overtake 追上，赶上 species 品种，物种 subtle 细致的，细微 的 tone 音色，音质 1.The essayist’s language expresses rich and subtle meanings. 散文的语言表达丰富而细微的含义。 2. The stockbrokers were overtaken by the sharp drop in the stock market last Tuesday. 股票经纪人在上周二股票下降的时候投入的股票。 3. Biologists have estimated that there are around one million animal and

大学体验英语电子教案第一册

Unit 1 College Life Objectives: After finishing this unit, students will be able to: ● get familiar with college life: what they can learn; what activities they can participate in, etc. ● learn to use the key words and expressions in this unit ● learn how to form compound and complex sentences ● learn to adopt the reading skill Skimming or Scanning while reading ● learn to fill in registration forms and design name cards Section I Listen and Talk (2 periods) Step 1 Lead in (25 mins) 1.Warm up questions: What are your main activities in college life? Can you describe them? 2.Listening: (Listen to the passage and fill the missing words in the blanks. Listen three times) Keywords: spend, golden, explore, experience, lifelong, various, develop, scholars, lay, open 3. Words and Phrases golden: adj. 黄金的，宝贵的 lifelong: adj. 终生的，一生的 keep a good balance: 保持良好的平衡 lay a solid foundation: 打下坚实的基础 4. Talking about the pictures or say something about your college life (Pair-work) Keywords: discuss, meet, chat, communicate Step 2 Dialogues (40 mins) 1. Listen to the two sample dialogues and try to answer some questions Dialogue 1 Meeting on Campus Who is Mike? What help did Mike need? Who is Mr. Wang? Dialogue 2 At the Registration Desk Where are the two speakers? What are they doing? Which elective course does Mike choose at last? 2. Practice Read two dialogues in pairs (pair work) 3. Learn some useful phrases and expressions: have been looking forward to doing sth.: 一直希望着 I’m here to see whether you need any help. 我能帮你什么忙吗？

大学体验英语2第三版课文翻译PASSAGEA课后翻译

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