新编实用英语第三版(2)课后习题答案
Unit 1
1) 你能告诉我在哪儿可以买到口香糖吗？
Can you tell me where I can buy some chewing gum?
2) 警察想知道她长什么样儿。
The police wanted to know what she looked like.
3) 你知道她穿的是什么衣服吗?
Do you know what she was wearing?
4) 在报告中他们问到银行里有几个监控摄像头。
In the report, they asked how many security cameras there were in the bank.
5) 面试官问他已经工作几年了。
The interviewer asked him how many years he had worked.
6) 你想知道他什么时候去上海吗?
Do you want to know when he will leave for Shanghai?
7) 我只是想知道你喜欢什么颜色, 红色还是黄色。
I want to know which color you prefer — red or yellow.
1)What’s your guideline in choosing songs for your audience?
2) The seminar starts on Friday and the experts will be discussing the impact of technology on the climate in the future.
3) Barclays appointed Bob Diamond, the head of its investment-banking business, as its new chief executive from March 2011.
4) Frankly speaking, I cannot uphold such conduct. You see, it is aimed only at the personal interest.
5) However, just because you can write statements in purely mathematical notations, this doesn’t mean that you necessarily should.
6) That was good timing because his work was influential in shaping the project plan.
7) Those studying abroad will most likely return home for better employment because of the tight job market abroad.
8) It gives me great pleasure to express once again my deep appreciation for the grand reception and generous hospitality we enjoy here.
Unit 2
1) 你需要的是更多的锻炼。
What you need is more practice
2) 他们什么时候来还没有公布。
When they will come hasn’t been made public.
3) 你可否告诉我你是哪儿的人？
Could you tell me where you are from?
4) 我们应该弄清楚展览馆是否开放。
We should find out whether the museum is open.
5) 问题是我们应该选择哪条路线。
The question is which route we should choose.
6) 他去北京的理由是很清楚的。
The reason why he is going / has gone to Beijing is very clear.
7) 他们小组很可能会赶到我们前头去。
It is likely that their group will get ahead of us.
8) 你选择什么课程并不重要，重要的是要找出色的教授。
It doesn’t matter what courses you take, what matters is to find the great professors.
1) The world leaders outlined joint efforts to combat the spread of nuclear weapons.
2) He didn’t look nervous. If anything, he looked only slightly confused.
3) You can omit the last two sentences in the report.
4) Health and understanding are the two great blessings of life.
5) The amount of money spent on the design of interactive advertising on television is still small.
6) The noisy traffic is a continual annoyance to the citizens.
7) To our great disappointment, she did not come as expected that day.
8) In order to notify him, I put the notice on his door, but he didn’t come back to look at it.
Unit 4
1) 这就是车祸发生的地点。
This is the place where / at which the traffic / car accident occurred.
2) 他对国家做出的贡献将永远不会被人们遗忘。
The contributions (that / which) he has made to the country will never be forgotten.
3) 我想见一见提出这项有价值的建议的员工。
I’d like to see the employee who has put forward the valuable suggestion.
4) 你能不能告诉我，为什么拒绝接受他生日聚会的邀请。
Could you tell me the reason why you refused the invitation to his birthday party?
5) 我昨天买的钢笔将作为礼物寄给你。
The pen, which I bought yesterday, will be sent to you as a gift.
6) 我无法告诉你她来桂林的准确时间。
I can’t tell you t he exact time when she will be in Guilin.
7) 他把房子卖了，这让他妻子很恼火。
He sold the house, which annoyed his wife.
8) 正在装货的那艘轮船明天离港。
The ship that / which is being loaded is leaving / sailing tomorrow.
9) 我的薪水没有提高，但这并不是我离开的原因。
I didn’t get a pay rise, but this wasn’t the reason w hy I left.
10) 我相信你做什么饭我都喜欢吃。
I’m sure I’ll enjoy everything that you cook.
1) What kind of accommodation did you have when you traveled on the ship?
2) The explosion did a great deal of damage to the entrance to the City Hall.
3) His office is in town, but his residence is in the suburb.
4) People often don’t realize how wonderful the services are in the library .
5) Read the instructions before you switch on the engine.
6) An additional charge is made for heavy bags.
7) I must apologize to you for not being able to go to your wedding.
8) It causes a lot of inconvenience when bus drivers go on strike.
9) We were soon comfortably settled in the place.
10) Free umbrellas are available at the entrance of the hotel.
Unit 5
1) 当他还是个孩子的时候，他就表现出非凡的天赋。
When he was a child, he displayed extraordinary talent.
2) 我们在做出任何决定之前，应该听一听其他人的意见。
Before we make any decision, we should listen to what the others say.
3) 除非发生意外情况，否则我一定来参加你们的聚会。
I will come to your party unless something unexpected happens.
4) 他受了处分，因为他打破了窗户的玻璃。
He was punished because he broke the window glass.
5) 她放弃了工作，以便能照顾两个孩子。
She gave up her job in order that she could take care of the two children.
6) 即使大选失利，总统仍将控制国家的对外政策。
Even though / if he loses the election, the president will still have control over the country’s foreign policy.
7) 如果你现在离开，两小时后就到家了。
If you leave now,you’ll be home in two hours.
8) 他们正在花园里玩，突然听到一声尖叫。
They were playing in the garden when they heard a scream.
1)He was writing his signature at the bottom of the page.
2) Guess what I did in the whole of the first week.
3) That afternoon I got bored and actually I fell asleep for a few minutes at the meeting.
4) When I was young she always treated me to ice cream.
5) We wondered what had happened to the old man.
6) It was the orange flavor that everybody likes.
7) I just spent a vacation there and would recommend it to anyone.
8) He left me a message that he would meet me in the classroom at 7 P.M.
9) He was a guy who enjoyed his life to the full.
10) Fortunately, the weather was reasonably mild that winter.
Unit 7
1) 是她建议我们去图书馆的。
It was she who / that suggested we go to the library.
2) 直到天黑我才意识到太晚了，不能去拜访他了。
It wa s not until dark that I realized it was too late to visit him.
3) 你们昨天工作得确实很苦。
You did work very hard yesterday.
4) 我是在上周接到通知的。
It was last week that I got the notice.
5) 我们的英语老师送给我的是这本字典。
It was this dictionary that our English teacher gave me.
6) 我一生中从未听说过这么奇怪的事情。
Never have I heard such a strange thing in my life.
7) 只有当你亲自去做时，才能明白这项工作是多么艰苦。
Only when you do it yourself can you understand how hard the work is.
8) 他不但答应帮助我们，而且还要借钱给我们。
Not only did he promise to help us, but he also wanted to lend us some money.
1) His television series (has) awakened popular interest in Chinese architecture.
2) Some drivers don’t have any respect for other motorists.
3) The country’s highest medal was bestowed upon him for his heroic deeds
4) The children spontaneously gave us hugs and kisses.
5) His enthusiasm made everyone else interested.
6) The First Lady addressed the meeting briefly.
7) Her beauty and intelligence was registered in my memory.
8) He is a curious boy who is always asking questions.
Unit 8
1) 总而言之，我们应该为学生创造一个较好的学习环境。
In a word, we should create a better environment for students to study in.
2) 从上述讨论来看，我们得出的结论是：必须立即采取措施来控制空气污染。From what we have discussed above, the conclusion we have come to is that we must take immediate measures to control the air pollution.
3) 显然，家长必须为孩子们树立一个好榜样。
Obviously, parents must set a good example for their children.
4) 吉姆是一个有能力的人，毕竟他受过良好的教育。
Jim is an able man, and after all he had a good education.
5) 我们曾试图帮他摆脱困境，总而言之，我们尽了最大努力。
We tried to help him with his problem. In a word, we did the best we could.
1) The winner of the election assumed the office of senator.
2) The old man lightened up when he heard the news of the successful operation on his son.
3) On seeing the pictures, he began to recall his experiences during World War II.
4) About 200 heart operations a year are performed in Brook Hospital.
5) He is such a good story-teller that he can make his characters come alive.
6) Our teacher was trying to present an accurate picture of history.
7) He put her aboard the ship bound for New York.
8) It took them a few years to convince me that it was possible.
9) The children were eager to see the performance.
10) Your happiness, that is the only thing that matters.
《新编实用英语》第一册教案
《新编实用英语》第一册教案 Unit One Greeting and Introducing People Teaching Objective In "Talking Face to Face",learn how to greet people and how to make introductions. In "Being All Ears", practice listening comprehension to greet and introduce people with various relationships. In "Maintaining a Sharp Eye",master the key words and structures and learn the way foreign people greet each other, particularly the way Americans meet and greet each other, both in informal and formal situations by reading through passage I; learn and practice how to introduce oneself by reading through passage II. In "Trying Your Hand", become knowledgeable on how to write a business card and fill in a passport with one’s personal information; review the basic sentence structure. Teaching Procedures Section I Talking Face to Face1.Warm- up: Expressions of greetings and responses to greetings： a. Greetings: 1) Hi! How do you do? 2) Hello, you must be Jack from America. 3) How are you? 4) Hello. How are things with you? How are you doing? 5) How is everything? 6) You are doing all right? 7) How it goes? 8) How is life, John? 9) Excuse me. Are you Kitty? b. Responses to Greetings: 1) How do you do? 2) Fine, just fine. 3) Fine, thank you. 4) Quite well. And you? 5) The usual. How about you? 6) So-so. And what about you? 7) Nothing particular. 8) Not too bad. 9) Nice to meet you.
微观经济学第二章课后练习答案
第二章需求、供给和均衡价格 1. 已知某一时期内某商品的需求函数为Q d＝50－5P，供给函数为Q s＝－10＋5P。 (1)求均衡价格P e和均衡数量Q e，并作出几何图形。 (2)假定供给函数不变，由于消费者收入水平提高，使需求函数变为Q d＝60－5P。求出相应的均衡价格P e和均衡数量Q e，并作出几何图形。 (3)假定需求函数不变，由于生产技术水平提高，使供给函数变为Q s＝－5＋5P。求出相应的均衡价格P e和均衡数量Q e，并作出几何图形。 (4)利用(1)、(2)和(3)，说明静态分析和比较静态分析的联系和区别。 (5)利用(1)、(2)和(3)，说明需求变动和供给变动对均衡价格和均衡数量的影响。 解答：(1)将需求函数Q d＝50－5P和供给函数Q s＝－10＋5P代入均衡条件Q d＝Q s，有50－5P＝－10＋5P 得P e＝6 将均衡价格P e＝6代入需求函数Q d＝50－5P，得 Q e＝50－5×6＝20 或者，将均衡价格P e＝6代入供给函数Q s＝－10＋5P，得 Q e＝－10＋5×6＝20 所以，均衡价格和均衡数量分别为P e＝6，Q e＝20。如图2—1所示。 图2—1 (2)将由于消费者收入水平提高而产生的需求函数Q d＝60－5P和原供给函数Q s＝－10＋5P代入均衡条件Q d＝Q s，有 60－5P＝－10＋5P 得P e＝7 将均衡价格P e＝7代入Q d＝60－5P，得 Q e＝60－5×7＝25
或者，将均衡价格P e＝7代入Q s＝－10＋5P，得 Q e＝－10＋5×7＝25 所以，均衡价格和均衡数量分别为P e＝7，Q e＝25。如图2—2所示。 图2—2 (3)将原需求函数Q d＝50－5P和由于技术水平提高而产生的供给函数Q s＝－5＋5P代入均衡条件Q d＝Q s，有 50－5P＝－5＋5P 得P e＝5.5 将均衡价格P e＝5.5代入Q d＝50－5P，得 Q e＝50－5×5.5＝22.5 或者，将均衡价格P e＝5.5代入Q s＝－5＋5P，得 Q e＝－5＋5×5.5＝22.5 所以，均衡价格和均衡数量分别为P e＝5.5，Q e＝22.5。如图2—3所示。
新编实用英语综合教程1 第一版 课后答案
一.填空 1. The 2008 … time for… China. 2. Of coursel …take care of …business. 3. Never leave without … years. 4. Clearly … recognition and awards …work. 5. The great … team work. 6. Exercise will … appetite. 7. When I come across … notebook. 8. Let me … official … land. 9. In that … occasional … serious. 10. You have … at hand … traveling. 11. She is annoyed … recommended. 12. Please … feel free to … home. 13. `Nowadays … assume that … is celebrated … America. 14. Is Spring Festival a … the majority … countries? 15. My family … end-of-year cleaning. 16. Some universities … Muslim(s) … food. 17. Decorating the … colorful candles … now. 18.In the 1950s … large choice … them. 19.Do you … ways of thinking? 20.The Asian … festive event … People shared … athletes. 二，汉译英。 1.像…自己。 You, like most people, probably are learning how to market yourself. 2.对不起…走！ I’m so sorry , My go-go boss asks me to leave right now. 3.我…言表。 Language is not enough to show my thanks to my parents 4.这…适用于我。 Such sweet words might please you.but they don’t work for me 5.做…差异。 We should beware of cultural differences in foreign trade 6.我们…老朋友。 We have just come across an old friend we haven’t seen for ages. 7.你…吗？ Can you provide any evidence to show that he was not in the crime scene at that time. 8.如果…联系。 If you need our products, please contact me in advance, 9.汤姆…去过。 Tom is new to the town . He has never been there before. 10.认为…错了。 It would be wrong to assume that Valentine’s Day is only celebrated by young people. 11.随着…世界杯了。 With the development of the Internet,the World Cup could be watched at the same time
新编实用英语综合教程1第八单元课后答案
Unit 8 Keeping Healthy and Seeing a Doctor Put in Use ①Imagine you are a doctor. An overseas student from Englandis suffering from a toothache. He is coming to you for help make a conversation with him by filling out the blanks. Key: (1). the matter (2). very well (3). have a look (4). worry (5). some medicine (6). stop the pain (7). Take the tablets (8) several times a day ②Role-play the following conversation with your partner by putting the Chinese version into English. Key: (1). What’s w rong? You look very pale. (2). Oh, your leg is bleeding. You’d better lie down. Does that feel better? (3). I have the first-aid kit here. Let’s stop the bleeding first. (4). You should go to see a doctor immediately. Want me to accompany you to the hospital? ③Tourists may suffer from different kinds of illness. Imagine you are a tour guide. You notice that one of the tourists doesn’t look very well. Talk with her and try to give her some help.
matlab课后习题解答第二章doc
第2章符号运算 习题2及解答 1 说出以下四条指令产生的结果各属于哪种数据类型，是“双精度” 对象，还是“符号”符号对象？ 3/7+0.1; sym(3/7+0.1); sym('3/7+0.1'); vpa(sym(3/7+0.1)) 〖目的〗 ●不能从显示形式判断数据类型，而必须依靠class指令。 〖解答〗 c1=3/7+0.1 c2=sym(3/7+0.1) c3=sym('3/7+0.1') c4=vpa(sym(3/7+0.1)) Cs1=class(c1) Cs2=class(c2) Cs3=class(c3) Cs4=class(c4) c1 = 0.5286 c2 = 37/70 c3 = 0.52857142857142857142857142857143 c4 = 0.52857142857142857142857142857143 Cs1 = double Cs2 = sym Cs3 = sym Cs4 = sym 2 在不加专门指定的情况下，以下符号表达式中的哪一个变量被认 为是自由符号变量. sym('sin(w*t)'),sym('a*exp(-X)'),sym('z*exp(j*th)') 〖目的〗 ●理解自由符号变量的确认规则。 〖解答〗 symvar(sym('sin(w*t)'),1) ans = w symvar(sym('a*exp(-X)'),1) ans = a
symvar(sym('z*exp(j*th)'),1) ans = z 3 求以下两个方程的解 （1）试写出求三阶方程05.443 =-x 正实根的程序。注意：只要正实根，不要出现其他根。 （2）试求二阶方程022=+-a ax x 在0>a 时的根。 〖目的〗 ● 体验变量限定假设的影响 〖解答〗 （1）求三阶方程05.443 =-x 正实根 reset(symengine) %确保下面操作不受前面指令运作的影响 syms x positive solve(x^3-44.5) ans = (2^(2/3)*89^(1/3))/2 （2）求五阶方程02 2 =+-a ax x 的实根 syms a positive %注意：关于x 的假设没有去除 solve(x^2-a*x+a^2) Warning: Explicit solution could not be found. > In solve at 83 ans = [ empty sym ] syms x clear syms a positive solve(x^2-a*x+a^2) ans = a/2 + (3^(1/2)*a*i)/2 a/2 - (3^(1/2)*a*i)/2 4 观察一个数（在此用@记述）在以下四条不同指令作用下的异同。 a =@, b = sym( @ ), c = sym( @ ,' d ' ), d = sym( '@ ' ) 在此，@ 分别代表具体数值 7/3 , pi/3 , pi*3^(1/3) ；而异同通过vpa(abs(a-d)) , vpa(abs(b-d)) , vpa(abs(c-d))等来观察。 〖目的〗 ● 理解准确符号数值的创建法。 ● 高精度误差的观察。 〖解答〗 （1）x=7/3 x=7/3;a=x,b=sym(x),c=sym(x,'d'),d=sym('7/3'), a =
新编实用英语综合教程1第八单元课后答案
新编实用英语综合教程1第八单元课后答案 Unit 8 Keeping Healthy and Seeing a Doctor Put in Use ①Imagine you are a doctor. An overseas student from Englandis suffering from a toothache. He is coming to you for help make a conversation with him by filling out the blanks. Key: (1). the matter (2). very well (3). have a look (4). worry (5). some medicine (6). stop the pain (7). Take the tablets (8) several times a day ②Role-play the following conversation with your partner by putting the Chinese version into English. Key: (1). What’s wrong? You look very pale. (2). Oh, your leg is bleeding. You’d better lie down. Does that feel better? (3). I have the first-aid kit here. Let’s stop the bleeding first. (4). You should go to see a doctor immediately. Want me to accompany you to the hospital? ③Tourists may suffer from differen t kinds of illness. Imagine you are a tour guide. You notice that one of the tourists doesn’t look very well. Talk with her and try to give her some help. Key: (1). Very soon. Are you sure you’re all right? You don’t look quite yourself. (2). Oh, t hat’s too bad. You’d better take a rest now. have you had any medicine? (3). Look, this is medicated oil. You might want to rub some on your temples. (4). But you’d better go to see a doctor. I’ll accompany you to the clinic as soon as we return to the hotel. Step III. Being All Ears Listen and decode.
第二章课后练习答案
第二章贸易术语 思考题答案 1. 试述贸易术语的含义、性质及在国际贸易中的作用。 贸易术语（trade terms），也称贸易条件、价格术语（price terms），是在国际贸易的长期实践中逐渐形成的用一个简短的概念或外文缩写来表明商品的价格构成、说明货物交接过程中有关的风险、责任和费用划分问题的专门术语。 贸易术语具有两重性，即一方面表示交货条件，另一方面表示成交价格的构成因素。 贸易术语在国际贸易中起着积极的作用，主要表现在下列几个方面： （1）有利于买卖双方洽商交易和订立合同； （2）有利于买卖双方核算价格和成本； （3）有利于解决买卖双方的争议。 2. 有关国际贸易术语的国际贸易惯例主要有哪几种？分别解释了哪些贸易术语？ 目前，国际上有关贸易术语的国际惯例有三种。 （1）《1932年华沙-牛津规则》 它对CIF合同的性质、特点及买卖双方的权利和义务都作了具体的规定和说明，为那些按CIF贸易术语成交的买卖双方提供了一套易于使用的统一规则。 （2）《1941年美国对外贸易定义修正本》 该定义对以下六种贸易术语作了解释：Ex（Point of Origin）、FOB（Free on Board）、FAS （Free Along Side）、C&F（Cost and Freight）、CIF（Cost，Insurance and freight）和Ex Dock （named port of importation）。 （3）《2000年国际贸易术语解释通则》 它解释了四组13个贸易术语。第一组为“E”组（EX WORKS），第二组为“F”组（FCA、FOB和FAS），第三组为“C”组（CFR、CIF、CPT和CIP），第四组为“D”组（DAF、DES、DEQ、DDU和DDP）。 3. 什么是《INCOTERMS 2000》？试分别指出各组术语的共同点以及13个术语的交货点。 《INCOTERMS 2000》（《2000年国际贸易术语解释通则》）是国际商会为统一对各种贸易术语的解释而制定的一种通用的有关贸易术语的国际贸易惯例。最早的版本制定于1936年，后来经过了多次修改和补充：1953、1967、1976、1980、1990年先后进行过5次修订和补充，最近的一次修订是在2000年，故称为《INCOTERMS 2000》。 它解释了四组13个贸易术语。 E组只有一个贸易术语，即EXW（工厂交货），其特点是卖方在自己的地点把货物备妥或交至买方处置之下。 F组有3个贸易术语（FCA、FAS、FOB），其共同点是卖方须将货物交至买方指定的承运人，不负责运输及保险等事宜。 C组有4个贸易术语（CFR、CIF、CPT、CIP），其共同点是卖方须签订运输合同，支付运费，但货物灭失或损坏的风险及装船和启运后发生意外所产生的费用，卖方不承担责任。 D组有5个贸易术语（DAF、DES、DEQ、DDU、DDP），其特点是卖方须承担把货物交至指定的进口国交货地点的全部费用和风险，且按D组术语成交的贸易合同，称为到货
新编实用英语综合教程3 unit(1-6) 课后答案
Unit 1 Put in Use : Practice 1 1、are going to apply for a patent on it 2、ve you made the necessary preparations 3、e model has yet to undergo / receive the final test, but the technical drawings are ready 4、w long will it take to get the patent Put in Use : Practice 2 1、at findings have you got from the market research 2、e mini-type of mobile phones are selling well in the market 3、you think this new type of mobile phones will take the place of the older ones 4、people's living conditions have been improved greatly in recent years 5、their views on consumption are also changing rapidly 6、So you believe the potential market for mobile phones will be quite large Put in Use : Practice 3 1、are you interested in 2、 something about them 3、 model do you prefer
DS第二章-课后习题答案
第二章线性表 2.1 填空题 (1)一半插入或删除的位置 (2)静态动态 (3)一定不一定 (4)头指针头结点的next 前一个元素的next 2.2 选择题 (1)A (2) DA GKHDA EL IAF IFA(IDA) (3)D (4)D (5) D 2.3 头指针：在带头结点的链表中，头指针存储头结点的地址；在不带头结点的链表中，头指针存放第一个元素结点的地址； 头结点：为了操作方便，在第一个元素结点前申请一个结点，其指针域存放第一个元素结点的地址，数据域可以什么都不放； 首元素结点：第一个元素的结点。 2.4已知顺序表L递增有序，写一算法，将X插入到线性表的适当位置上，以保持线性表的有序性。 void InserList(SeqList *L,ElemType x) { int i=L->last; if(L->last>=MAXSIZE-1) return FALSE; //顺序表已满 while(i>=0 && L->elem[i]>x) { L->elem[i+1]=L->elem[i]; i--; } L->elem[i+1]=x; L->last++; } 2.5 删除顺序表中从i开始的k个元素 int DelList(SeqList *L,int i,int k) { int j,l; if(i<=0||i>L->last) {printf("The Initial Position is Error!"); return 0;} if(k<=0) return 1; /*No Need to Delete*/ if(i+k-2>=L->last) L->last=L->last-k; /*modify the length*/
新编实用英语综合教程1第二版答案
第一单元 Put in use 1. Robert Thank you pleasure Here is this is How do you do call me journey the hotel very kind 2. Hi, are you Miss Mary Green? I’m Li hong from Foreign Languages School. How do you do, Miss Green? Nice to meet you. Did you have a good journey? Oh, yes. Let’s go to the hotel of our school. Everything is ready for you there. Well, Miss Green, here is my card. Please call me or email me if you need any help. 3. Excuse me How do you do, Mr. Smith Welcome to our company you are the general manager Here is my card Thank you My email address is Read and Think 1. It means a close and friendly relationship. 2. They find these terms too formal. 3. They want to show their friendliness. 4. They want to know more about you so that they can begin a conversation with you. 2 greet informal friendly formal wave perhaps leave 3 use Mr., Mrs. or Miss use first names call me Sally glad/happy informal/friendly 4. named has left prefer personal accept means Speaking of get to know acquainted with 5. It is my impression that a typical English gentleman often takes an umbrella with him. To the students, the introduction to the cultural background is the best part of the book. When we talk with a foreign lady, in most cases we should not ask such personal questions as her age. Many young people prefer pop songs to old songs. They think pop singers are very cool. This beautiful and clean city has left a deep impression upon the foreign tourists. Professor Lu Yang stood on the plane’s entrance and waved good-bye to us.
第二章课后习题与答案
第2章人工智能与知识工程初步 1. 设有如下语句，请用相应的谓词公式分别把他们表示出来：s (1)有的人喜欢梅花，有的人喜欢菊花，有的人既喜欢梅花又喜欢菊花。 解：定义谓词d P(x)：x是人 L(x,y)：x喜欢y 其中，y的个体域是{梅花，菊花}。 将知识用谓词表示为： (?x )(P(x)→L(x, 梅花)∨L(x, 菊花)∨L(x, 梅花)∧L(x, 菊花)) (2) 有人每天下午都去打篮球。 解：定义谓词 P(x)：x是人 B(x)：x打篮球 A(y)：y是下午 将知识用谓词表示为：a (?x )(?y) (A(y)→B(x)∧P(x)) (3)新型计算机速度又快，存储容量又大。 解：定义谓词 NC(x)：x是新型计算机 F(x)：x速度快 B(x)：x容量大 将知识用谓词表示为： (?x) (NC(x)→F(x)∧B(x)) (4) 不是每个计算机系的学生都喜欢在计算机上编程序。 解：定义谓词 S(x)：x是计算机系学生 L(x, pragramming)：x喜欢编程序 U(x,computer)：x使用计算机 将知识用谓词表示为： ? (?x) (S(x)→L(x, pragramming)∧U(x,computer)) (5)凡是喜欢编程序的人都喜欢计算机。 解：定义谓词 P(x)：x是人 L(x, y)：x喜欢y 将知识用谓词表示为：
(?x) (P(x)∧L(x,pragramming)→L(x, computer)) 2 请对下列命题分别写出它们的语义网络： (1) 每个学生都有一台计算机。 解： (2) 高老师从3月到7月给计算机系学生讲《计算机网络》课。 解： (3) 学习班的学员有男、有女、有研究生、有本科生。 解：参例2.14 (4) 创新公司在科海大街56号，刘洋是该公司的经理，他32岁、硕士学位。 解：参例2.10 (5) 红队与蓝队进行足球比赛，最后以3：2的比分结束。 解：
新编实用英语第二版综合教程二 课后答案
第一单元 1为方便起见，这些照片将按照时间顺序展示 For convenience, the photos will be shown in time sequence.、 2出现事故之后你需要把车停下 You are required to stop your car after an accident 3教育孩子的观念和做法因文化的差异而有所不同 The conceptions and practices of child education vary from culture to culture. 4与其说他是位音乐家，倒不如说他是位诗人 He is more of a poet than a musician 5我父亲已好心地提出让我们去飞机场 My father has kindly offered to take us to the airport 6我们确实应该找个时间很快见面，讨论一下细节 We really should meet sometime soon to discuss the details. 1You are not required to commit yourself until you know what the invitation is for. Once he starts a job he won't stop until it's finished. 他直到30岁才找到女朋友。. He didn't have a girlfriend until he was thirty. 我不告诉你，你不要离开。 Don't leave until I tell you to. 2The invitation turns out to be something you'd hate to do. It turns out that he is the person you'd have to deal with. 真实情况原来比我们想象得更为离奇。 The truth turned out to be stranger than we had expected. 原来他们都是孩子的时候，她就认识他了。 . It turns out that she had known him when they were children. 3You will be in a position to take back your acceptance or invent an excuse later. I'm not in a position to reveal any of the details of the project at present. 很抱歉，我现在不能帮你的忙。 .I'm sorry I'm not in a position to help you right now 我敢肯定他们想定经济上帮助她，但却无能为力。 .I'm sure they'd like to help her out financially but they're not in a position to do so. 4In many instances it is the inviter who pays, but in some instances each one pays his or her own check. In many instances it is the CEO who has the final say, but in some instances the department manager has the right to make the decision. 很多情况下是老师在讲，但在某些情况下则是学生讲。 .In many instances it is the teacher who talks, but in some instances the students talk. 很多情况下由丈夫付账，但在某些情况下则妻子自己付账。 In many instances it is the husband who pays, but in some instances the wife pays her own bill. 5It may be more of a suggestion than an invitation. He is more of a teacher than a student. 与其说他是位制片人，倒不如说他是位导演。 . He is more of a director than a producer.
定性数据分析第二章课后答案资料
定性数据分析第二章 课后答案
第二章课后作业 【第1题】 解：由题可知消费者对糖果颜色的偏好情况（即糖果颜色的概率分布），调查 者取500块糖果作为研究对象，则以消费者对糖果颜色的偏好作为依据，500块糖果的颜色分布如下表1.1所示： 表1.1 理论上糖果的各颜色数 由题知r=6，n=500，我们假设这些数据与消费者对糖果颜色的偏好分布是相符，所以我们进行以下假设: 原假设：:0H 类i A 所占的比例为)6,...,1(0==i p p i i 其中i A 为对应的糖果颜色，)6,...,1(0=i p i 已知，16 10=∑=i i p 则2χ检验的计算过程如下表所示： 在这里6=r 。检验的p 值等于自由度为5的2χ变量大于等于18.0567的概率。在Excel 中输入“)5,0567.18(chidist =”，得出对应的p 值为
05.00028762.0<<=p ，故拒绝原假设，即这些数据与消费者对糖果颜色的偏好 分布不相符。 【第2题】 解：由题可知 ，r=3，n=200，假设顾客对这三种肉食的喜好程度相同，即顾 客选择这三种肉食的概率是相同的。所以我们可以进行以下假设： 原假设 )3,2,1(3 1 :0==i p H i 则2χ检验的计算过程如下表所示： 在这里3=r 。检验的p 值等于自由度为2的2χ变量大于等于15.72921的概率。在Excel 中输入“)2,72921.15(chidist =”，得出对应的p 值为 05.00003841.0<<=p ，故拒绝原假设，即认为顾客对这三种肉食的喜好程度是 不相同的。 【第3题】 解：由题可知 ，r=10，n=800，假设学生对这些课程的选择没有倾向性，即选 各门课的人数的比例相同,则十门课程每门课程被选择的概率都相等。所以我们可以进行以下假设： 原假设)10,...,2,1(1.0:0==i p H i 则2χ检验的计算过程如下表所示：
新编实用英语综合教程unit课后练习答案
新编实用英语综合教程2 Unit 3 课后习题答案 P39-1 1 speak 2. where is he 3. might be with 4. leave a message 5. call me 6. 667-3452 7. welcome P39- 2 1. Hello , May I speak to Mr. Smith please 2. Yes , please , tell hime to call the director's office , the number is 864-3509 3. It would be best if he cold call this afternoon , at about 2 o'clock 4. thanks a lot P39-3 1. Hello 2. I amsorry , but he is not in at the moment , would you like to leave a message 3. I 'll tell her as soon as he is back 4. You're welcome . P40-3 1. a telephone message 2. a memo 3. phone
4. at home 5. personal 6. skills 7. a message 8. expect 9. who called 10. what was the message 11. friends and family 12. questions 13. when they called 14. the person calling 15. reach him P41-4 1- b 2- d P43-1 1. Because people stopped talking face to face to one another 2. Because his friends was busy talking on the phone , completely forgetting his present 3. Because they can be used anywhere and anytime 4. Without seeing or talking to one another and with voice mail , we can conduct entire poeple lose their inimacy of interaction . 5. People lose their intimacy of interaction 6. He thinks it's great , but worries about its unintended consequences . P43-2 1. disconnected 2. set back
新编实用英语1(第四版)教学大纲
郑州信息工程职业学院基础部 《新编实用英语Ⅰ》课程教学大纲 课程编码：9999010061 总学时：72 学时 实验学时：无 学分：3学分 适用对象：一年级学生 先修课程：基础英语 一、课程的性质与任务 （一）本课程的性质 大学英语课程是非英语专业学生必修的一门基础课程。旨在培养学生的英语综合应用能力，使他们在今后工作和社会交往中能用英语有效地进行书面信息交流，提高综合文化素养，以适应社会发展和经济建设的需要。《新编实用英语Ⅰ》是我院高职一年级学生第一学期所有学生学习和掌握英语听，说，读，写基本技能的基础课。 （二）本课程的任务 本课程在高职高专院校中人才培养计划中是必修课程。该课程理论与技能培养并重，相互结合，培养各类高职高专的应用型人才。经过学习，使学生掌握一定的英语基础知识和技能，具有一定的听说读写译的能力，从而能借助词典翻译和阅读有关英语资料，使学生在今后的工作和社会交往日常活动中能用英语有效地进行口头和笔头交流，并为今后进一步提高英语的交际能力打下基础。为此，该课程将努力做到以下三个方面： 1、培养学生英语综合应用能力具有较强的阅读能力和良好的听、说、写、译能力，使他们能用英语交流信息。 2、增强学生的学习能力、特别是自主学习能力。 3、提高学生的综合文化素养。 （三）本课程培养人才的定位
该课程是我院各专业学生必修的一门公共基础课程，旨在培养学生的英语综合应用能力（听、说、读、写、译）；培养学生使用英语处理日常和涉外业务活动能力。使他们在今后工作中与社会交往中能用英语有效地进行信息交流，提高综合文化素养，以适应社会发展日益国际化的需要。 （四）本课程在人才培养过程中的作用 经过本课程的学习，使学生扎实语音、语法、词汇和基本句型等语言基本功，强化并提高听、说、读、写、译的综合能力，提高学生就业竞争力。 二、课程的基本要求 通过学习本课程，学生应该达到以下要求： 1、词汇 认知 2500 个英语单词(包括入学时要求掌握的 1000 个词) 以及由这些词构成的常用词组，对其中 1500个左右的单词能正确拼写，能进行英汉互译。 2、语法 掌握基本的英语语法规则，在听、说、读、写、译中能正确运用所学的语法知识。 3、听力 能听懂涉及日常交际的结构简单、发音清楚、语速较慢(每分钟 120 词左右)的英语对话和不太复杂的陈述，理解基本正确。能理解具体信息，理解所听材料的背景，并能推断所听材料的含义。 4、口语 掌握一般的课堂用语，并能模拟或套用常用口头交际句型，就日常生活和有业务提出问题或做出简单回答，交流有困难时能采取简单的应变措施。 5、阅读 能阅读中等难度的一般题材的简短英文资料，理解正确。在阅读生词不超过数 3% 的英文资料时，阅读速度不低于每分钟 50 词，能读懂通用的简短文字材料，如信函、产品说明等，理解基本正确。并且掌握以下阅读技巧： 1)理解文章的主旨或要点； 2)理解文章中的具体信息； 3)根据上下文推断生词的意思；