大学英语四级考试全真预测试题解析.doc

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1、大学英语四级考试全真预测试题解析Model Test OnePart II Reading Comprehension (Skimming and Scanning)1.【解析】Y该句的意思是巨大的河流改道水利工程使得咸海缩小。从第二段的中间两句话可得出结论。Thirty years ago, government planners diverted the rivers that flow into the sea in order to irrigate（provide water for）farmland. As a result, the sea has shrunk to half

2、its original size, stranding ships on dry land.与原文意思相同。2.【解析】N该句句意为:巨坝和灌溉工程的建设好处多于坏处。解题依据为本文第三段第二句话But many countries continue to build massive dams and irrigation systems, even though such projects can create more problems than they fix. （虽然产生更多问题，许多国家仍继续建巨坝和灌溉工程。）由此可知，坏处多于好处，所以该题与原文之义不合。3.【解析】Y该句句

3、意为:缺水的主要原因是人口增长和水污染。本题解题依据可定位到本文第四段第一句话 Growing populations will worsen problems with water 及第十一段第一句话But almost everyone contributes to water pollution. 两者都是水资源缺乏的原因，与原文之义相符。4.【解析】Y该句句意为:美国人面临的有关水的问题为地下水的减少和污染。本题解题依据为第七段第二句话和第八段第三句话，这两句话加在一起即为美国人所面临的水资源方面的问题，与原文之义相符。5.【解析】N该句句意为:根据这篇文章，所有水的污染都来自于家庭废

4、弃物。本题解题依据为第十一段最后一句话70 percent of the pollutants could be traced to household waste （百分之七十的污染物源于家庭废弃物），据此，本题之意与原文之义不合。6.【解析】N该句句意为:美国人将不会面临缺水问题。该题解题依据为文章第七段第二句话 But Americans could face serious water shortages, too, especially in areas that rely on groundwater, 显然本题之意与原文之义不合。7.【解析】NG该句句意为:水利专家Gleick

5、提供了与水相关的最佳解决方案。根据本文第十三段第一句话所述，专家Gleick 并未提供任何最佳解决方案。8.【解析】onethird 解题依据为第四段最后一句话：He fears that by the year 2025, as many as onethird of the worlds projected 8.3 billion people will suffer from water shortages.9.【解析】glaciers and ice caps 解题依据为第五段第二句话：Twothirds of this freshwater is locked in glaciers

6、 and ice caps.10.【解析】water pollution 解题依据为第十段第二句话：Toxic chemicals pollute water when released untreated into rivers and lakes.Part III Listening ComprehensionSection A11.W I just saw an ad on television that said mens suits were on sales today and tomorrow at Conrads Mens Wear.MGreat! Thats just wha

7、t Ive been waiting for.QWhat will the man probably do?【解析】D男士说男士套装的销售正是他一直等待着的。所以从他的态度可判断，他要去买件男装。12.W: Is john really ill?M: Its hard to say. I doubt theres anything wrong with him physically.Q: What does the man mean?【解析】A从男士的话：我怀疑约翰的身体没有任何问题中可看出答案。13.M: Do you know if the book shop is still open?

8、W: Yes, its open till six.Q: When do you think this conversation took place?【解析】A 女士说书店现在还开着，一直开到六点呢，说明现在的时间是在六点之前。14.M: Of the two houses we saw today, which do you prefer?W: I think the white one is prettier, but the brick one has a bigger yard, so I like it better.Q: Why does the woman like the b

9、rick house better than the white house?【解析】C女士明确指出 the brick one has a bigger yard, so I like it better.15. M: Honey, well have a guest from Australia, a friend of mine. Hell stay in California for two weeks.W: Yes. Your friend Andy. He was your classmate at London University, wasnt he?Q: What is th

10、e probable relationship between the two speakers?【解析】C男士称女士为 honey, 证明两人关系亲密，由此可判断两人关系为夫妻。16.M: When will the meeting begin?W: According to the schedule it should be at 9:30. It will last for an hour and a half.Q: When will the meeting be closed?【解析】B根据女士所说的话，根据时刻表会议930开始，持续一个半小时，那么即11：00结束。17. W: I

11、f I were you, I would take a plane instead of a bus. It will take you forever to go there.M: But flying makes me so nervous.Q: What does the man prefer to do?【解析】C 女士建议男士为什么不乘飞机，男士回答说飞行让他精神紧张，说明男士还是愿意乘坐公共汽车。18. W: Ive been thinking about my cousin a lot today.M: Why not go over for a visit?Q: What d

12、oes the man mean?【解析】A男士说的 Why not go over for a visit 即是在建议女士去看望她的堂兄。Now youll hear two long conversations.Conversation OneW: Ok, last night you were supposed to read an article about human bones. Are there any comments about it?M: Well, to begin with, I was surprised to find out there was so much

13、going on in bones. I always assumed they were pretty lifeless.W: Well, thats an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.M: Right. Thats one of the things I found so fascinating about the article the way the

14、bones repair themselves.W: Ok. So can you tell us how the bones repair themselves?M: Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemic

15、al that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group. W: Very good. This is a very complex process. In fact, the scientists who study human bon

16、es dont completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesnt completely fill in the hole. And this can cause real problems.

17、It can actually lead to a disease in which the bone becomes weak and is easily broken.M: Ok, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time.

18、Thatll prevent the disease from ever occurring.Questions 19 to 22 are based on the conversation you have just heard.19. What is the discussion mainly about?【解析】C对话一开始就谈论人类骨骼的问题，女士说 But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair. 后面的对话都是针对这个话题展

19、开的讨论，可见整个对话讨论的话题是骨头的自我修复能力。20. What is the function of the first group of specialized cells discussed in the talk?【解析】C男士解释了第一组细胞的作用，第一组细胞生成一种化学物质分解骨组织(This group of cells produces the chemical that actually breaks down the bone tissue)，由此可见答案是They break down bone tissue.21. What does the professor

20、say about scientists who study the specialized cells in human bones?【解析】B女士说这种特殊细胞作用于人类骨头的过程相当复杂，事实上，连研究人类骨头的科学家都不能完全了解这个过程。从这一句中可以知道：In fact, the scientists who study human bones dont completely understand it yet. 所以答案即是这些科学家也不知道这些细胞如何工作。22. According to the student, what is one important purpose o

21、f studying specialized cells in human bones?【解析】A学习这些人类骨头中的特殊细胞的重要目的是为了学习如何预防骨头疾病。从男士的这一句话中可看出：Thatll prevent the disease from ever occurring. 这样可以在疾病发生之前预防疾病，可见A符合题意。Conversation TwoM: Hi Diana, mind if I sit down?W: Not at all, Jerry. How have you been?M: Good. But Im surprised to see you on the c

22、ity bus. Your car in the shop?W: No. Ive just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could.M: Im sure you are right. The diesel bus isnt exactly pollution free.W: True. Theyll be running a lot cleaner s

23、oon. We were just talking about that in my environmental engineering class.M: What could the city do? Install pollution filters in all their buses?W: They could, but those filters make the engines work harder and really cut down on the fuel efficiency. Instead they found a way to make their engines

24、more efficient.M: How?W: Well, there is a material thats a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine.M: An insulator?W:Y eah. What it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.M: So a

25、 lot less unburned fuel comes out to pollute the air.W: And the bus will need less fuel. So with the saving on fuel cost, they say this will all pay for itself in just six months.M: Sounds like people should all go out and get some this stuff to spray their car engines.W: Well, its not really that e

26、asy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10000 degrees and then, well, you get the idea. Its not something you or I will be able to do ourselves.Questions 23 to 25 are based on the conversation

27、 you have just heard.23. What is the conversation mainly about?【解析】C女士说为了环保应该多乘坐公共交通设备，因此之后的话题便围绕如何节能保护环境的问题展开。这段对话主要讨论的是公共汽车的节能问题，讨论了如何让公共汽车燃料更有效的利用，因此C符合题意。24. Why did the woman decide to ride the city bus?【解析】B对话开头部分就交代了此题答案，那位女士说她不开自己的车而该乘公车是为了降低环境污染。从她提到的So I decided the air will be a lot clean

28、er if we all use public transportation when we could 即可得知。25. What is the new material?【解析】D 这种新的材料是在引擎部位喷洒的一种绝缘材料。从女士的话中there is a material thats a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine即可得出。这种材料的用途是将燃料燃烧的热量反射回去，从而达到提高效率的结果。Section BPassage OneA

29、guide dog is a dog especially trained to guide a blind person. Dogs chosen for such training must show good intelligence, physical fitness, and responsibility.At the age of about fourteen months, a guide dog begins an intensive course that lasts from three to five months. It becomes accustomed to th

30、e leather harness and stiff leather handle it will wear when guiding its blind owner. The dog learns to watch traffic and to cross streets safely. It also learns to obey any command that might lead its owner into danger.The most important part of the training course is a fourweek program in which th

31、e guide dog and its future owner learn to work together. However, many blind people are unsuited by personality to work dogs. Only about a tenth of the blind find a guide dog useful.Questions 26 to 28 are based on the passage you have just heard.26. How long does the intensive course last?【解析】A文中明确提

32、到an intensive course that lasts from three to five months，因此正确答案为 A。27.Which of the following is not a necessary skill guide dogs have to learn?【解析】D答案依据是The dog learns to watch traffic and to cross streets safely. It also learns to obey any command that might lead its owner into danger. 从这两句中可看出看家不

33、属于导盲犬训练范围内的技能。28.How long does the most important training course last?【解析】C最重要的训练课程持续四周。文中明确指出了本题答案。The most important part of the training course is a fourweek program，从此句中即可看出。Passage TwoPeople dreams four to six times a night. They dream while they are in the REM stage of sleep, which means rapi

34、d eye movement stage in ones sleep. Sleepers go into the REM stage about every 90 minutes. The first dream of the night may last about ten minutes. Each dream gets a little longer. The last dream of the night may be an hour long.People need their dreams. Younger children spend more time dreaming. Ba

35、bies spend almost half of their sleep in the REM stage.One experiment showed that everyone needs to dream. Doctors gave some people sleeping pills. These sleeping pills didnt let them going to REM sleep. After a few nights without dreams, they began to feel bad. They became angry easily, they worrie

36、d a lot, and they wanted to fight with everyone. Then they stopped taking the sleeping pills. They all began to dream all night for a few nights to catch up.Why do people dream? Dreams give them time to find the answers to some of their problems. If they think they will have difficult problems the n

37、ext day, they may spend more time on REM sleep the night before. In their dreams, they may find an answer to their problems.Questions 29 to 31 are based on the passage you have just heard.29.How often does a person dream each night?【解析】B文章一开始即交待了一个人一晚上要做梦四到六次。从第一句就可看出People dreams four to six times

38、a night.因此，答案为 B。30.What is true according to this passage?【解析】D安眠药会阻止人们进入REM睡眠状态。These sleeping pills didnt let them going to REM sleep.可看出 D 项正确。31.Why do people dream?【解析】D文中明确给出了答案Dreams give them time to find the answers to some of their problems.因为在梦中人可以找到自己的问题的答案。Passage ThreeO.K., everybody.

39、 Can we start the meeting now? Im Jeff Milton, the chairperson of the Graduation Committee for this year. Youve all been selected as representatives to plan the graduation ceremonies. Im sending around the sheet of paper for you to fill in your name and telephone number. Also, please write down what

40、 part of the ceremonies you would like to work on. Remember, as a representative, you will have a lot of responsibilities. So only sign up if you feel you have the time to participate. When everyone has finished writing down the information, please return the paper to me. At our next meeting one wee

41、k from today, well start to discuss the details of the ceremonies.Questions 32 to 35 are based on the passage you have just heard.32.Who is the speaker?【解析】C从文章开头说话者的自我介绍就可知道他是这个委员会的主席。33.What is the purpose of the meeting?【解析】D在座的代表都是被选来计划毕业典礼的事。34.What should the students write on the paper?【解析】A在

42、座的学生应该在表格上填写姓名、电话以及工作意向。35.When is the next meeting?【解析】B从这句话At our next meeting one week from today可知下次会议在下周召开。Section C36.【答案】educational【答案解析】本文讲的是英国的教育系统，主要讲了英国学生要参加的三次重要的考试。37.【答案】taken【答案解析】英国学生的首次升学考试是在十一岁左右进行。学生参加考试，此处是被动态主语是考试，因此用taken。38.【答案】ability【答案解析】学生的能力和才智将在elevenplus的升学考试里得到体现，从而决定

43、其是否应留在学校继续学习，此空格即是能力ability一词。39.【答案】aptitude【答案解析】此空格内容与前一空格内容相关联，学生的能力和才智将在升学考试中得到体现，aptitude 是才智、智能的意思。40.【答案】determined【答案解析】英国学生参加的首次考试 elevenplus的结果将决定他们是否继续留校学习，因此此处空格填决定一词，而且又为被动语态，即为 determined。41.【答案】comprehensive【答案解析】现在所有的学生都进入综合中学继续学习，comprehensive意为“广泛的、综合的”。42.【答案】tested【答案解析】学生接受测试，主

44、语是学生，语态为被动语态，因此用tested。43.【答案】Level【答案解析】一般水平即是ordinary level。Level即为水平、水准之意。44.【答案】This examination covers a wide range of subjects.45.【答案】The final examination, at eighteen, covers only the content of the special subjects.46.【答案】In a real sense, the English boy or girl is a specialist from the age

45、 of fifteen.Part Reading Comprehension（Reading in Depth）Section A【短文大意】本文主要介绍了美国城镇人们购物方式的变化。47.【解析】C20世纪早期，大多数美国城市和城镇都有一条主街道。20世纪早期即用early in the 1900s。48.【解析】I这条街道排成一列，街道两边都是各式各样的商店。Various 意为“不同的、各种各样的”49.【解析】G另外，一些商店还提供服务。提供服务可用固定的搭配 offer services。50.【解析】B所填词take 才能与后面的词place搭配，take place 为固定词组，

46、意为“发生”But in the 1950s, a change began to take place 意为20世纪50年代发生了巨大的变化。51.【解析】N主街道充斥着太多的汽车，却没有地方给顾客停车。Available 意为“可用到的、可利用的”，这里指没有可用的地方给顾客停车。52.【解析】LShopping centers, or rather malls, started as a collection of small new stores away from crowded city centers. 购物中心或者购物商场开始在拥挤的城市中心之外建小型的新商场。开始即用star

47、t。53.【解析】D顾客们被许多免费的停车场所吸引，attracted 是被吸引之意。54.【解析】Mcustomers were drawn away from downtown areas to outlying malls.顾客们被从市区吸引到郊区的购物商场。市区即用downtown 一词。55.【解析】J购物中心越来越流行，popularity即普及、流行之意。56.【解析】F购物中心除了提供停车的便利之外，还提供其他服务。提供便利即用 provide convenience。Section BPassage One【短文大意】本文主要讲述文化背景对商业运作的影响，文中列举了商界中存在

48、的对于文化多样性的两种观点。57.【解析】C推断题。意为“对在商业中怎样对待文化有着不同意见”。 文化在商业中是一个很具挑战性的因素。不同的国家与地区可能会有不同的文化体系。在商业中，应该怎样对待不同的文化，商业界存在着不同的看法。58.【解析】细节题。意为“与同意世界商业一体化的派别的主张是一致的”。 Pepsi采纳的是国际化的商业风格，这与那些主张国际化的派别的意见是相一致的。59.【解析】C推断题。意为“承认商业世界中文化的多元性”。两个派别都承认商业世界中文化的多元性。他们的不同在于，应该对待不同的文化，应该搞国际化还是对不同的文化采取不同的策略。60.【解析】D主旨题。由文中的例子可以知道，作者主要关心的并不是研究多种文化形态，而是文化背景对商业运作的影响。所以D是正确答案。61.【解析】细节题。意为“都具有耐心这一素质”。并非