新托福测试题
阅读
1. What is the main
reason that people
developed methods of
refrigeration?
○A They wanted to
improve the flavor
and nutritional
value of food.
○B They needed to
slow the natural
processes that
cause food to spoil.
○C They needed a use
for the ice that
formed on lakes
and rivers.
○D They wanted to
expand the
production of
certain industries.
2. The word perishable
in paragraph 1 is
closest in meaning to
○A capable of spoiling
○B uncooked
○C of animal origin
○D highly nutritious 3. What can be inferred
from paragraph 1
about cold storage
before the invention of
artificial
refrigeration?
○A It kept food cold
for only about a
week.
○B It was dependent
on a source of ice
or snow.
○C It required a
container made of
metal or wood.
○D It was not a safe
method of
preserving meat. 4. Artificial refrigeration
involves all of the
following processes
EXCEPT
○A the pumping of
water vapor
through a pipe
○B the rapid
expansion of
certain gases
○C the evaporation of
a volatile liquid
○D the transfer of heat
from one place to
another
5. Which sentence below
best expresses the
essential information
in the highlighted
sentence in paragraph
2? Incorrect choices
change the meaning in
important ways or
leave out essential
information.
○A It takes a lot of
energy to
transform a liquid
into a vapor,
especially when the
vapor loses heat.
○B Some gases expand
rapidly and give off
energy when they
encounter a very
cold
THE DEVELOPMENT OF REFRIGERATION Cold storage, or refrigeration, is keeping food at temperatures between 32 and 45 degrees F in order to delay the growth of microorganisms—bacteria , molds, and veast—that cause food to spoil. Refrigeration produces few changes in food, so meats, fish, eggs, milk, fruits, and vegetables keep their original flavor, color, and nutrition. Before artificial refrigeration was invented, people stored perishable food with ice or snow to lengthen its storage time. Preserving food by keeping it in an ice—filled pit is a 4,000-year-old art. Cold storage areas were built in basements, cellars, or caves, lined with wood or straw, and packed with ice. The ice was transported from mountains, or harvested from local lakes or rivers, and delivered in large blocks to homes and businesses.
Artificial refrigeration is the process of removing heat from a substance, container, or enclosed area, to lower its temperature. The heat is moved from the inside of the container to the outside. A refrigerator uses the evaporation of a volatile liquid, or refrigerant, to absorb heat. In most types of refrigerators, the refrigerant is compressed, pumped through a pipe, and allowed to vaporize. As the liquid turns to vapor, it loses heat and gets colder because the molecules of vapor use energy to leave the liquid. The molecules left behind
to the passage. Where would the sentence best fit?
Gorrie’s basic principle of compressing a gas, and then sending it through radiating coils to cool it, is the one most often used in refrigerators today.
Scientists and inventors from around the world developed artificial refrigeration the eighteenth and nineteenth centuries. William
Cullen demonstrated artificial in Scotland in 1748, when he let ethyl ether boil into a partial vacuum. In 1805, American inventor Oliver Evans designed the first machine that used vapor instead of liquid. In 1842, physician
John Gorrie used Evans’s to create an air-cooling treat yellow-fever patients
practice and with ice making, and in 1851 he was granted first U.S. patent for mechanical refrigeration. In the same year, an
Australian printer, built an ether refrigerator after noticing that when he cleaned his type with ether it became very cold as the ether evaporated. Five years later, Harrison introduced vapor—compression refrigeration to the brewing and meatpacking industries.
13—14. An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage.
Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.
○A A refrigerator has an evaporator that
makes the inside of
the refrigerator cold. ○B People used to preserve food by
packing it with ice or
snow in cold storage
areas.
○C Artificial
refrigeration Was
made possible by the
compression and
evaporation of a
volatile substance. ○D William Cullen developed a method
of artificial
refrigeration in 1748. ○E Practical uses of vapor-compression
refrigeration were
introduced in the
nineteenth century. ○F CFCs have not been used as refrigerants
since they were found
to damage the earth’s
ozone layer.
15. According to the
passage, how did
Canadian English
become a distinct
variety of North
American English?
○A Linguists noticed
that Canadians
spoke a unique
dialect.
○B A large group of
Loyalists settled in
one region at the
same time.
○C Growth of the
middle class led to
a standard school
curriculum.
○D Canadians
declared their
language to be
different from U.S.
English. 16. The word norms in
paragraph 1 is closest
in meaning to
○A patterns
○B history
○C words
○D ideas
17. The phrase a great
deal in common with
in paragraph 2 is
closest in meaning to
○A different words for
○B the same problems
as
○C many similarities
to
○D easier
pronunciation than
18. In paragraph 2, what
point does the author
make about Canadian
English?
○A Canadian English
is more similar to
American than to
British English.
○B American and
British visitors
define Canadian
English by their
own norms.
○C Canadian English
has many words
that are not in
other varieties of
English.
○D Canadians speak
English with an
accent that
Americans cannot
understand.
19. The phrase the two
varieties in paragraph
3 refers to
○A People who live
outside North
American
○B Canadian English
and American
English
○C General Canadian
and North
American
○D British English
and Canadian
English 20. The word spot in
paragraph 3 is closest
in meaning to
○A describe
○B ignore
○C prefer CANADIAN ENGLISH Canadian English is a regional variety of North American English that spans almost the entire continent. Canadian English became a separate variety of North American English after the American Revolution, when thousands of Loyalists, people who had supported the British, left the United States and fled north to Canada. Many Loyalists settled in southern Ontario in the l780s, and their speech became the basis for what is called General Canadian, a definition based on the norms of urban middle-class speech.
Modern Canadian English is usually defined by the ways in which it resembles and differs from American or British English. Canadian English has a great deal in common with the English spoken in the United States, yet many Americans identify a Canadian accent as British. Many American
visitors to Canada think the Canadian vocabulary sounds British—for example, they notice the British “tap” and “braces”instead of the American “faucet”and “suspenders.”On the other hand, many British people identify a Canadian accent as American, and British visitors think the Canadians have become Americanized, saying “gas”and “truck”for “petrol” and “lorry.”
People who live outside North America often find it difficult to hear the differences between Canadian and American English. There are many similarities between the two varieties, yet they are far from identical. Canadian English is instantly recognizable to other Canadians, and one Canadian in a crowded room will easily spot the other Canadian among the North Americans.
There is no distinctive Canadian grammar. The differences are mainly in pronunciation, vocabulary, and idioms. Canadian pronunciation reflects the experience of a people struggling for national identity against two strong influcaces. About 75 percent of Canadians use the British “zed”rather than the American “zee”for the name of the last letter of the alphabet. On the other hand, 75 percent of Canadians use the American pronunciation of “schedule,”
○D find
21. Which sentence below
best expresses the
essential information
in the highlighted
sentence in paragraph
4? Incorrect choices
change the meaning in
important ways or
leave out essential
information.
○A Canadian English
has been strongly
influenced by both
British and
American English.
○B Canada is the only
nation where
people can
deliberately choose
which
pronunciation they
prefer.
○C Canadians have
tried to distinguish
themselves as a
nation, and this
effort is shown in
their
26. Look at the four squares, which
to the passage. Where would the sentence best fit?
Thus, “out ” rhymes with “boat,” so the phrase “out and about in a boat ” sounds like “oat and aboat in a boat ” to American ears.
There is no distinctive Canadian grammar. The differences are mainly in pronunciation, vocabulary, and idioms. Canadian pronunciation reflects the experience of a people struggling for national identity against two strong influences. About 75 percent of Canadians use the British “zed ” rather than the American “zee ” for the name of the last letter of the alphabet. On the other hand,75 percent of Canadians
use the American pronunciation of “schedule,” “tomato,” and “missile.” The
most obvious and “out ”
pronounced like “oat ” in U.S. accents. There are other
identifying features of vowels; for example, “cot ”“caught ” and “collar ” the same as “caller.”the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.
Answer Choices
○A Canadian English contains elements of both British and American English. ○B Several unique varieties of English have evolved in North America. ○C Canadians pronounce most words the same way as Americans do. ○D Canadian English
asserts its distinctiveness through
pronunciation.
○E Words and idioms
originating in Canada also help to define Canadian English.
○F Most Canadians cannot identify where other Canadians are from.
with that from
Kenya
33. Which of the following
is of major interest to
both physical and
cultural
anthropologists?
○A Methods of
physiology and
genetics
○B Religious beliefs
and practices
THE SCIENCE OF
ANTHROPOLOGY
Through various methods of research, anthropologists try to fit together the pieces of the human puzzle—to discover how humanity was first achieved, what made it branch out in different directions, and why separate societies behave similarly in some ways but quite differently in other ways. Anthropology, which emerged as an independent science in the late eighteenth century, has two main divisions: physical anthropology and cultural anthropology. Physical anthropology focuses on human evolution and variation and uses methods of physiology, genetics, and ecology. Cultural anthropology focuses on culture and includes archaeology, social anthropology, and 1inguistics.
Physical anthropologists are most concerned with human biology. Physical anthropologists are detectives whose mission is to solve the mystery of how humans came to be human. They ask questions about the events that led a tree-dwelling population of animals to evolve into two-legged beings with the power to lean—a power that we call intelligence. Physical anthropologists study the fossils and organic remains of once-living primates. They also study the connections between humans and other primates that are still living. Monkeys, apes, and humans have more in common with one another physically than they do with other kinds of animals. In the lab, anthropologists use the methods of physiology and genetics to investigate the composition of blood chemistry for clues to the relationship of humans to various primates. Some study the animals in the wild to find out what behaviors they share with humans. Others speculate
career, moving from
studies of child rearing in
the Pacific to the cultural
and biological bases of
gender, the nature of
cultural change, the
structure and functioning
of complex societies, and
race relations. Mead
remained a pioneer in her
willingness to tackle
subjects of major
intellectual consequence,
to develop new
technologies for research,
and to think of new ways
that anthropology could
serve society.
Glossary:
primates: the
order of mammals that
includes apes and humans
hominid: the family
of primates of which
humans are the only living
species
39. Look at the four squares, which
to the passage. Where would the sentence best fit?
Anthropology is the study of the origin, development, and varieties of human beings and their societies.
Through various methods of research,
try to fit together the pieces of the human puzzle—to discover how humanity was first achieved, what made it branch out in different directions, and why separate societies behave
ways. Anthropology, which emerged as an
science in the late eighteenth century, has two main divisions: anthropology and cultural anthropology. Physical anthropology
focuses on human and variation and uses methods of physiology, genetics, and ecology.
Cultural anthropology focuses on culture and includes
social anthropology, and choices and match them to the type of anthropology that they describe. TWO of the answer choices will NOT be used. This question is worth 3 points.
Answer Choices ○A The focus is on the similarities and differences among cultures. ○B This field studies life on many different scales of size and time. ○C Researchers observe similarities between humans and other primates. ○D Scientists examine the fossils and skulls of early humans. ○E Researchers live and work in other societies and write ethnographies. ○F It is the study of the origin. history, and structure of the
earth. ○G The story of
humanity ’s origins is a major topic of investigation. Type of
Anthropology Physical Anthropology ●
● ● Cultural
Anthropology ● ●
最新托福考试作文题选编 1. Some people think that parents should plan their children‘s leisure time carefully. Other people believe?that children should decide for themselves how to spend their free time,Which idea do you agree with?Give reasons for your choice. 2. People should be realistic rather than romantic in order to live a better life. Do you agree or disagree?with the statement. Use specific reasons to support your answer. 3. People should never be satisfied with what they have,they should always want something new or?something different Do you agree or disagree with the statement. Give reasons for your choice. 4. Some people think that the family is the most important influence on young adults. Other people think?that friends are the most important influence on young adults. Which view do you agree with?Use examples to)support your position. 5. Some students participate in school activities such as clubs and sports. Other students do not take part in??such activities because they spend more time on their studies. Tell why you think the two groups of?students spend their time differently?Which type of student do you prefer to be?Explain why. 6. Traveling is more important than reading books in order to understand the people and the world. Do you agree or disagree with the statement Use specific reasons to support your answer. 7. Some people like different friends. Others like similar friends. Compare the advantages of these two?kinds of friends. Which kind of friend do you prefer. Explain why? 8. After they complete their university studies,some students live in their hometowns,others live in?different towns or cities. Which do you think is better……living in your hometown or living in different towns or cities. Give specific reasons for your answer. 9. Some people believe that newspaper are the best source of news. Others think that the news is presented?better on radio or television. Which of these sources of news do you prefer?Use specific examples to?support your choice. 10. Some people learn best when a classroom lesson is presented in an entertaining,enjoyable way. Other?people learn best when a lesson is presented in a serious,formal way. Which of these two ways of?learning do you prefer?Give reasons to support your answer. 11. Some people say that the best preparation for life is learning to be cooperative. Others take the opposite?view and say that learning to be competitive is the best preparation. Tell which one you agree with and explain why. 12. Some people pay money for the things they want or need. Other people trade products or goods for?what they need. Compare the advantages of these two ways of obtaining things. Which way do you?prefer?Explain why. 13. Some people believe that growing up in a large family,with several sisters and brothers,offers?more advantages than disadvantages. Other people think that being the only child is more?advantageous. Write a short essay in which you discuss the advantages and disadvantages of each position. Explain which position you
更多试卷下载请访问:https://www.sodocs.net/doc/7b13989742.html,/ 2005年01月托福语法全真题及答案 2005年01月语法题【改错部分】 1-15、选择部分省略 16. In the eighteenth century, quilting became a common technique in the American colonies for make of coverlets sewed in floral and geometric designs. 答案:C->改为making 测试点:介词+宾语 分析:for doing sth 为了作某事,介词for后面不能接动词原型make,需要改成doing。 参考译文:在18世纪的时候,在被子上面绣花变成了一种常见的技术,用来在床罩上面绣花和几何图案。 除外。 18. Centrifuges are widely use to separate liquids having different densities or to separate solids from 参考译文:分液漏斗广泛用于吧不同密度的液体分开或者把固体和液体分开。 19. There is ample evidence of that about 700 million years ago, glaciers reached well into what are now tropical regions. 答案:B->改为that 测试点:定语从句 分析:定语从句的连接词that前面多了of,of只能出现在which前面
参考译文:有足够的证据表明,在7亿年前,冰山深入到达过现在的热带地区。 20. Mathematics is a tool that can help solve problems and lead to new developments in other fields, such as space flight, medical, and architecture. 答案:D->改为medicine 测试点:词性 分析:such as 后面接并列的形式,flight, architecture都是名次,medical是形容词,错误,改为medicine 参考译文:数学是用来帮助解决问题的工具,在其他领域可以带来新发展,比如飞行,医药和建筑。 21. The meter of the English poetry is determined by accented syllables rather by the quantities of vowels. 答案:C->改为rather than by 测试点:固定搭配 分析:并列结构by sth rather than by sth,后面的by可以省 参考译文:英语诗歌的节拍是由重读的音节决定的而不是由元音的数量决定的。 22. In the nineteenth-century United States, it was assumed that growth, change, and progressive derived mainly from individual effort and competition. 答案:B->改为progress 测试点:词性 分析:groth, change and______三个名次才能并列,progressive是形容词,词性不对 参考译文:在19世纪的美国,成长,改变和发展被认为是主要来源于个人的努力和竞争。 23. Swelling of the mucous membranes, cause by irritants, allergies, or infections, may block the nasal passages, making breathing difficult. 答案:A->改为caused 测试点:过去分词修饰 分析:句子的主谓分别是swell may block,中间的部分cause没有和may block用连词连接,说明是修饰成分,再看到by说明是被动,所以修改为caused by;making 是现在分词结构修饰动词谓语,没有错误。 参考译文:由刺激、过敏、或者感染带来的粘膜的肿大,可能阻塞鼻子内部的通道,带来呼吸困难。
词汇题练习—tpo1-7 1.The word “precious” in the passage is closest in meaning to a.Exact b. scare c. valuable d.initial Although limited to a skull, the Pakicetus fossil provides precious details on the origins of …… 2.The word “exposed” in the passage is closest in mening to a.Explained b. visible c.identified d. located Several skeletons of another early whale, Basilosaurus, were found in sediments left by…and now exposed in the Sahara desert. 3.The word “propulsion” in the passage is closest in meaning to a.Staying afloat b.changing direction c. decreasing weight d.moving forward The structure of the backbone shows, however, that it swam like modern whales by moving the rear portion of its body up and down, even though a fluke was missing. The large hind legs were used for propulsion in water. 4.The word “threatened” in the passage is cloest in mening to a.Restricted b. endangered c. prevented d. rejected The expansion of desert-like conditions into areas where they did not previously exist is called deserfication. It has been estimated that an additional one-fourth of the Earth’s land surface is threatened by this process. 5.The word “delicate” in the passage is cloest in meaning to a.Fragile b.predictable c. complex d.valuable The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased exvironmental pressures. 6.The word “progressively” in the passage is cloest in meaning to a.Openly b. impressively c. objectively d.increasingly The cultivation of crops has expanded into progressively drier regions as population densities have grown. 7.The phrase “devoid of” in the passage is closest in meaning to a.Consisting of b. hidden by c. except for d. lacking in Since the raising of most crops necessitates the prior removal of the natural vegetation, crop failures leave extensive tracts of land deviold of a plant cover and susceptible to wind and water erosion. 8.The word “readily” in the passage is closest in meaning to a.Frequently b. easily c. intelligently d. obviously Exhibitors, however, wated to maximize their profits, which they could do more readily by projecting a handful of films to a hundreds of customers at a time…. 9.The word “assistance” in the passage is closest in meaning to a.Criticism b. leadership c. help d. approval …with the assistance of Edison’s former assistant…… 10.The word “expanded” in the passage is closest in meaning to a.Was enlarged b. was improved c. was varied d. was rejected At the same time, the image that the spectator looked at expanded from the miniscule peepshow dimensions of 1-2 inches (in height) to the life-size proportions of 6 or 9 feet. 11.The word “out of sight” in the passage is closet in meaning to (A) far away (B) hidden (C) partly visible d discovered 12.The word “incredible” in the passage is closet in meaning to (A) confusing
托福真题: 10月13日新托福测试阅读真题 考试日期 2012.10.13Passage 1Title:Is Panspermia Possible?大致内容 1996年发现了一个15 million years以前的陨石之类的,含有微生物,而且其中一些活过来了,这提起了科学家继续研究panspermia的兴趣(有题,这个概念在1996年很久以前就被提出了)。举了一些例子,1. 陨石crust外面的磁场很强,但是往里几厘米就渐弱很多,所以内部无法产生高温,无法让陨石飞行和降落。但是后来发现,其实是可以的;2. 又发现了一个一百多million以前的陨石之类的,里面也有微生物可以活过来,证明了之前的假设。而且,还做了实验,把细菌暴露在外太空的低温下。Passage 2Title:Sea Lions大致内容 sea lion数量减少的原因。一开始科学家们认为是因为大量的捕猎造成的数量减少,还做了实验,四个地方,两个禁止捕鱼,另外两个不禁止。一个professor带的团队认为是其他的原因。是因为killer whale吃掉的太多了。原因:因为原来killer whale吃的大型whale被人类捕杀了很多(有题),所以killer whale开始shift它的diet到小一点的动物上。有例子证明,在大型whale数量减少的时候,其他一些动物
的数量也接连的在减少(有题)。科学家debate how often killer whale吃其他动物,但是他们承认killer whale是原因之一。最后一段是那个professor带领学生采集数据发现killer whale改变1%的diet就造成了这么大的影响(有题),scientist也在怀疑这个结论。Passage 3Title:the Rise of Constantinople大致内容说的是君士坦丁堡这个城市的建立。先说这个城市是由皇帝建立的,用皇帝的名字命名(这里出现了一个日期,有题),虽然刚开始还很弱小,但很快就发展壮大。第二段说它的壮大的原因是地理位置很好,城市本身坐落在一个三角半岛的小山丘上,旁边全是悬崖。整个城区成为一个重要的军事要塞,易守难攻。此处也是从黑海前往爱琴海的通路(有题)。此外,此处还有自然深水港湾(有题),港湾边界还有链子围起来成为一个安全区域(有题),可供船只停泊。自古以来就是世界各地商船汇集的地方,处在交通要道,拥有深水港,是船的休息的中转站。皇帝对这些船进行征税。然后说了它的贸易发达,很多货物都运往这里(有题,问为什么举很多货物的例子),发展模式是沿用罗马模式,给民众发放免费食物,还有发展娱乐业,比如马戏团,文化产业繁荣。第三段说繁荣的第三个因素是城市规划的很好,建了很多建筑,采用罗马模式,但是又因地制宜(有题)。还讲了建了很多神明的雕塑,有最新的,也有传统的希腊神(有题),最后总结了一下。点
托福考试之历年托福语法真题全面解析 1.The flexibility of film allows the artist __________ unbridled imagination to the animation of cartoon characters. (A) to bring (B) bringing (C) is brought (D) brings 答案: A 测试点:不定式。 分析: allow+sb .十不定式为固定结构。4 个答案中只有( A) to bring 是不定式。 2. Traditionally, __________in New England on Thanksgiving Day. (A) when served is sweet cider (B) when sweet cider is served (C) is served sweet cider (D) sweet cider is served 答案: D
测试点:主谓结构。 分析:原句主、谓俱缺,应选一完整的主语+谓语的结构,即( D)。(A)、(C)不通,( B)则是从句,不适合此句。 3. Typical of the grassland dwellers of the continent __________, or pronghorn. (A) it is the American antelope (B) the American antelope is (C) is the American antelope (D) the American antelope 答案: C 测试点:倒装句。 分析: Typical of放在句首的句子,要用倒装句。Typical of,短语是表语,应在答案中选择“系动词+主语”的结构,即( C)。 解题要点:遇倒装句在 4 个答案中寻找以系动词( be)开始的结构。 4. Lillian D. Wald, public health nurse and __________, was born in Cincinnati Ohio, in 1867. (A) reforming society
【考前练习】托福词汇模拟练习题精选试题(二) 托福单词记忆对于大多数托福考生来说是一大难点。托福词汇的学习需要放在文章语境中去记忆和理解。以下为大家带来十道托福词汇模拟练习题精选试题(二),希望对大家托福备考有所帮助! 021. But in many cases consumers are misled if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods. So there is real cause for concern if consumers, particularly those with limited incomes, distrust the regular food supply and buy only expensive organic foods instead. The word “maintain” is closest in meaning to which of following? (A) improve (B) monitor (C) preserve (D) restore 022. In addition, there were performers and since considerable importance was attached to avoiding mistakes in the enactment of rites, religious leaders usually assumed that task. The word “considerable” is cl osest in meaning to which of following? (A) thoughtful (B) substantial (C) relational (D) ceremonial
文档从网络中收集,已重新整理排版.word版本可编辑.欢迎下载支持. 阅读 1. What is the main reason that people developed methods of refrigeration? They wanted to improve the flavor and nutritional value of food. They needed to slow the natural processes that cause food to spoil. They needed a use for the ice that formed on lakes and rivers. They wanted to expand the production of certain industries. 2. The word perishable in paragraph 1 is closest in meaning to capable of spoiling uncooked of animal origin highly nutritious 3. What can be inferred from paragraph 1 about cold storage before the invention of artificial refrigeration? It kept food cold for only about a week. It was dependent on a source of ice or snow. It required a container made of metal or wood. It was not a safe method of preserving meat. 4. Artificial refrigeration involves all of the following processes EXCEPT the pumping of water vapor through a pipe the rapid expansion of certain gases the evaporation of a volatile liquid the transfer of heat from one place to another 5. Which sentence below best expresses the essential information in the highlighted sentence in paragraph 2? Incorrect choices change the meaning in important ways or leave out essential information. It takes a lot of energy to transform a liquid into a vapor, especially when the vapor loses heat. Some gases expand rapidly and give off energy when they encounter a very cold THE DEVELOPMENT OF REFRIGERATION Cold storage, or refrigeration, is keeping food at temperatures between 32 and 45 degrees F in order to delay the growth of microorganisms—bacteria, molds, and veast—that cause food to spoil. Refrigeration produces few changes in food, so meats, fish, eggs, milk, fruits, and vegetables keep their original flavor, color, and nutrition. Before artificial refrigeration was invented, people stored perishable food with ice or snow to lengthen its storage time. Preserving food by keeping it in an ice—filled pit is a 4,000-year-old art. Cold storage areas were built in basements, cellars, or caves, lined with wood or straw, and packed with ice. The ice was transported from mountains, or harvested from local lakes or rivers, and delivered in large blocks to homes and businesses. Artificial refrigeration is the process of removing heat from a substance, container, or enclosed area, to lower its temperature. The heat is moved from the inside of the container to the outside. A refrigerator uses the evaporation of a volatile liquid, or refrigerant, to absorb heat. In most types of refrigerators, the refrigerant is compressed, pumped through a pipe, and allowed to vaporize. As the liquid turns to vapor, it loses heat and gets colder because the molecules of vapor use energy to leave the liquid. The molecules left behind have less energy and so the liquid becomes colder. Thus, the air inside the refrigerator is chilled. Scientists and inventors from around the world developed artificial refrigeration during the eighteenth and nineteenth centuries. William Cullen demonstrated artificial refrigeration in Scotland in l748, when he let ethyl ether boil into a partial vacuum. In l805, American inventor Oliver Evans designed the first refrigeration machine that used vapor instead of liquid. In l842, physician John Gorrie used Evans’s design to create an air-cooling apparatus to treat yellow—fever patients in a Florida hospital. Gorrie later left his medical practice and liquid.
托福考试之历年托福语法真题全面解析 ) 1.The flexibility of film allows the artist __________ unbridled imagination to the animation of cartoon characters. (A) to bring … (B) bringing (C) is brought 】 (D) brings 答案: A ^ 测试点:不定式。 < 分析: allow+sb .十不定式为固定结构。 4 个答案中只有( A) to bring 是不定式。 【 2. Traditionally, __________in New England on Thanksgiving Day. (A) when served is sweet cider … (B) when sweet cider is served ? (C) is served sweet cider (D) sweet cider is served
答案: D
测试点:主谓结构。 分析:原句主、谓俱缺,应选一完整的主语+谓语的结构,即( D)。(A)、(C)不通,( B)则是从句,不适合此句。 3. Typical of the grassland dwellers of the continent __________,or pronghorn. (A) it is the American antelope (B) the American antelope is (C) is the American antelope (D) the American antelope 答案: C 测试点:倒装句。 分析: Typical of放在句首的句子,要用倒装句。Typical of,短语是表语,应在答案中选择“系动词+主语”的结构,即( C)。 解题要点:遇倒装句在 4 个答案中寻找以系动词( be)开始的结构。 4. Lillian D. Wald, public health nurse and __________, was born in Cincinnati Ohio, in 1867. (A) reforming society
历年托福词汇题汇总440题(有答案)
TOEFL词汇题精选440题 001. Most of these leaders were involved in public life as reformers, activists working for women's right to vote, or authors, and were not representative at all of the great of ordinary women. The word "representative" is closest in meaning to which of following? (A) typical (B) satisfied (C) supportive (D) distinctive 002. In the United States, Louis Comfort Tiffany (1843-1933) was the most noted exponent of this style, producing a great variety of glass forms and surfaces, which were widely copied in their time and are highly prized today. The word "prized" is closest in meaning to which of following? (A) valued (B) universal (C) uncommon (D) preserved 003. The Art Nouveau style was a major force in the decorative arts from 1895 until 1915, although its influence continued throughout the mid-1920's. It was eventually to be overtaken by a new school of thought known as Functionalism that had been present since the turn of the century. The word "overtaken" is closest in meaning to which of following? (A) surpassed (B) inclined (C) expressed (D) applied 004. During most of their lives, surge glaciers behave like normal glaciers, traveling perhaps only a couple of inches per day. However, at intervals of 10 to 100 years, these glaciers move forward up to 100 times faster than usual. The word "intervals" is closest in meaning to which of following? (A) records (B) speeds (C) distances (D) periods 005. The increasing water pressure under the glacier might lift it off its bed, overcoming the friction between ice and rock, thus freeing the glacier, which rapidly sliders downhill surge glaciers also might be influenced by the climate, volcanic heat, or earthquakes. The word "freeing" is closest in meaning to which of following? (A) pushing (B) releasing (C) strengthening (D) draining 006. A flood of ice would then surge into the Southern Sea. With the continued rise in sea level, more ice would plunge into the ocean, causing sea levels to rise even higher, which in turn would release more ice and set in motion a vicious cycle. The word "plunge" is closest in meaning to which of following? (A) drop (B) extend (C) melt (D) drift 007. Group members look to instrumental leaders to "get things done." Expressive leadership, on the other hand, is leadership that emphasizes the collective well-being of a social group's members. The word "collective" is closest in 2
新托福口语考试试题小范例 (发布时间:2007-8-7 15:31:00 来自:模考网 实例: Narrator: “Public transportation should be encouraged instead of private cars.” Do you agree with this statement? Please give reasons for your answer. You may begin to prepare your response after the beep. [2 seconds beep] Preparation time: 15 seconds Response time: 45 seconds Narrator: Please begin speaking after the beep. [2 seconds beep] Suggested Answer: With the improvement of living standards, some people can afford to buy their own cars. They drive to work or drive to the suburbs, enjoying the happy holidays. Yet, private cars can’t replace public transportation, such as buses or subways. Compared with private cars, buses and subways have several advantages. First, they are very cheap. A