大学英语四级听力-31及答案解析.doc

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1、大学英语四级听力-31 及答案解析(总分：252.00，做题时间：90 分钟)一、Section A(总题数：4，分数：105.00)（分数：35.00）A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.（分数：21.00）A.B.C.D.A.B.C.D.A.B.C.D.Questions 9 to 12 are based on the conversation you have just heard.（分数：28.00）(1).A. How rocks are eroded.B. How sediment hardens into rock.C. How fl

2、ood plains develop.D. How minerals are extracted fromrock.（分数：7.00）A.B.C.D.(2).A. Stratigraphy is a rivers name.B. Stratigraphy is a description of the size of flood.C. Stratigraphy is the study of strata.D. Stratigraphy is another saying of geology.（分数：7.00）A.B.C.D.(3).A. How rocks are eroded.B. Ho

3、w strata are formed in rock.C. Why flooding makes geological investigations difficult.D. Which minerals can be found in rock.（分数：7.00）A.B.C.D.(4).A. The deposits arent made of organic material.B. The deposits arent found everywhere in the world.C. The deposits harden under conditions of heat and pre

4、ssure.D. The deposits dont form at regular time intervals.（分数：7.00）A.B.C.D.Questions 13 to 15 are based on the conversation you have just heard.（分数：21.00）(1).A. There arent enough cabinets.B. There is too much noise.C. Office supplies are taking up space.D. Some teaching assistants dont have desks.（

5、分数：7.00）A.B.C.D.(2).A. Give Jack a different office.B. Complain to the department head.C. Move the supplies to the storage room.D. Try to get a room to use for meetings.（分数：7.00）A.B.C.D.(3).A. Theyd have to get permission. B. Jack wouldnt like it.C. He thinks it might work. D. The other assistants s

6、hould be consulted.（分数：7.00）A.B.C.D.二、Section B(总题数：3，分数：70.00)Questions 16 to 18 are based on the passage you have just heard.（分数：21.00）(1).A. They get close to nature.B. They are usually healthier than city people.C. They get better and cheaper farm products.D. They are politer than city people.（分

7、数：7.00）A.B.C.D.(2).A. They breathe fresh air.B. They dont have diseases common in cities.C. They are in close touch with nature.D. They eat a lot of fresh vegetable.（分数：7.00）A.B.C.D.(3).A. They make a lot of promises without carrying them out.B. They speak their minds.C. They breathe more fresh air.

8、D. They assume polite manners.（分数：7.00）A.B.C.D.Questions 19 to 22 are based on the passage you have just heard.（分数：28.00）(1).A. To keep fish alive. B. To punish criminals.C. To preserve dead bodies. D. To help heal wounds.（分数：7.00）A.B.C.D.(2).A. He would lose his life. B. He would lose his ear.C. He

9、 would lose all his salt. D. He would be heavily fined.（分数：7.00）A.B.C.D.(3).A. On the kings seat. B. In front of the king.C. A long way from the important guests. D. In front of everyone.（分数：7.00）A.B.C.D.(4).A. Three thousand years ago. B. When man began to salt fish.C. When man began to preserve th

10、e dead.D. Not mentioned.（分数：7.00）A.B.C.D.Questions 23 to 25 are based on the passage you have just heard.（分数：21.00）(1).A. Because there are not enough programs to entertain.B. Because there are not enough programs to show the life of ordinary people.C. Because there are too many programs to educate.

11、D. Because there are not enough serious programs.（分数：7.00）A.B.C.D.(2).A. Businessmen. B. TV set owners.C. TV station owners. D. The commercial TV system.（分数：7.00）A.B.C.D.(3).A. Programs of science. B. Programs of medicine.C. Programs of art. D. Programs of history.（分数：7.00）A.B.C.D.三、Section C(总题数：1，

12、分数：77.00)Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they help to prevent (26) and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.Two thousand

13、years ago, a rich and (27) country cut down its trees to build (28) , with which to gain itself an empire. It gained the empire, but without its trees, its soil became hard and poor. When the empire fell to pieces, the home country found itself faced by floods and (29) . Even when a government reali

14、zes the (30) of trees, it is difficult for it to (31) the villagers to see this. For the villagers want wood for cooking, heating and even earning money by selling wood to towns men. They are usually too (32) to plant and look after new trees. So, unless the government has a good system of control,

15、or can educate the people, the forests will slowly (33) .(34) . The results are even more serious. (35) . But where there are no trees, the rain falls on hard ground and flows away on the surface, causing floods and carrying away the rich topsoil, in which crops grow so well. (36) ?（分数：77.00）填空项 1:_

16、填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_大学英语四级听力-31 答案解析(总分：252.00，做题时间：90 分钟)一、Section A(总题数：4，分数：105.00)（分数：35.00）A.B. C.D.解析：解析 W: The strike at the port has held up our export orders for two weeks. Do you think it will end soon?M: So far as I know, the management si

17、de has made an improved pay offer but the union is holding out for its original demands.Q: What does the man think of the strike?解析 选 B，观点态度题。该对话与罢工有关，女士说港口罢工已经妨碍出口贸易两周了，问男士对此事怎么看，男士说管理层已经提高了工资，但工会还在坚持最初的要求，可见，罢工暂时还停不了。考点 hold up 此处指“阻挠，延迟”，还有“持续，应付”的意思，如：manage to hold up under the daily stress想办法应

18、付每天的生活压力。hold up as 可指“作为例子提供或展示”，如：hold the essay up as a model for the students把这篇论文给学生作范例。A. B.C.D.解析：解析 W: I heard your daughter sing at the school concert last night She has a lovely voice, I must say.M: Thank you, but I dont know where she gets it.Q: What does the man probably mean?解析 选 A，综合推断

19、题。女士恭维男士的女儿嗓音优美，男士表示感谢之余还幽默了一句“我也不知她这嗓音是继承谁的”，言外之意，他自己唱歌不怎么样，故答案为 A。A.B.C.D. 解析：解析 M: Whats Mrs. Jason going to do with her old house on London Road, rent it or sell it?W: I heard she is thinking of turning it into a restaurant, which isnt a bad idea because its still a solid building.Q: What will M

20、rs. Jason do with her old house?解析 选 D，信息明示题。只要听清女士回答中的 turning it into a restaurant，就可以答对此题了，贾森太太要将房子改为一家饭店，而不是出租或拆毁。考点 do with 与 what配合使用，用于疑问句时，指“处理，解决，安排”，如：What are we going to do with the food left over from the party?我们该怎么处理宴会上剩下的食物呢?A.B.C.D. 解析：解析 M: Have you had the brakes and tyres checked

21、? And do you have enough money?W: Ive taken care of everything and Im sure its going to be a wonderful trip.Q: What is the woman going to do?解析 选 D，信息明示题。男士问女士是否检查好了刹车和轮胎，是否带够了钱，女士说自己已经准备好了一切，最后一句说她肯定这将是一次很棒的旅行，说明她打算去旅行，故选 D。考点 “have+名词+过去分词”的结构意为“使某事物予以处理”，其中过去分词表示的动作与前面的名词构成被动关系，如：She had her wall

22、et taken她的钱包被人拿走了。A.B.C.D. 解析：解析 W: I dont understand why this book for self-study doesnt have answers to the questions.M: But it does. You can find them at the back of the book.Q: What does the man say about the self-study book?解析 选 D，信息明示题。男士说在书后面可以找到答案，由此可知男士的意思是这本书有参考答案，故选 D。考点 at the back of 意为

23、“在后部，在背后“，同类短语还有：(in)back of 在后面；at the back of ones mind在记忆深处，下意识地，如：At the back of his mind was the vague idea that he had met her before他隐隐约约地觉得以前曾见过她。（分数：21.00）A.B.C. D.解析：解析 W: We mean to let everyone know about the charity concert, but we dont have enough money for advertising.M: How about usi

24、ng the school radio station? They broadcast free public service announcement.Q: What does the man suggest they do?解析 选 C，建议题。由男士的建议用学校的广播可知，在资金不足的情况下，他建议使用学校的广播站，故选 C。考点 mean to do sth意为“打算，计划做”，同类短语还有：mean sbfor 打算让某人做某事；be meant to do sth应该做，如：You are meant to leave a tip.你得留下点儿小费。A. B.C.D.解析：解析 M

25、: I dont know whether to ask Joe or Cora to draw the posters.W: What difference does it make? Theyre both excellent artists.Q: What does the woman imply about Joe and Cora?解析 选 A，观点态度题。女士说“这有什么区别吗?她们都是优秀的画家。”说明她们都很棒，言外之意是把这项工作交给谁都一样，故选 A。考点 difference 意为“差别”，常见短语有：make a difference 有关系，有很大差别(关系、影响)；

26、make no difference to对没有影响；all the difference (in the world)天壤之别，大不相同。A.B.C.D. 解析：解析 M: Im really exhausted. But I dont want to miss the film that comes on at 11.W: If I were you, Id skip it. We both have to get up early tomorrow. And anyway, Ive heard it isnt that exciting.Q: What does the woman me

27、an?解析 选 D，建议题。女士说：“我要是你的话，我就不看了(skip it)”，并且女士后面陈述的都是放弃看电影的理由以及电影的缺点，故选 D。Questions 9 to 12 are based on the conversation you have just heard.（分数：28.00）(1).A. How rocks are eroded.B. How sediment hardens into rock.C. How flood plains develop.D. How minerals are extracted fromrock.（分数：7.00）A. B.C.D.解

28、析：解析 9-12M: Lets say you are a geologist, and you want to investigate the geological history of a place. That is, how did geologists determine things like, say, how were the rocks formed? Or was an area once under water7 If so, when? How should you know about it?W: Id start with stratigraphy.M: Coul

29、d you explain what this is to the class?W: Well, stratigraphy is the description of strata in sedimentary rock. I guess thats not so clear, huh? Ok, lets say one of the investigators thought near a river,for example. Well, over the history of the area,every time the river flooded, it would deposit a

30、 layer of sediment all through with flood plains. Sometimes a bigger layer, sometimes a smaller, depending on the size of the flood. Well,one layer or stratum gets deposited over another. Obviously these strata built up over millions of years. Stratigraphy is the study of these layers of deposited s

31、ettlement.M: So does that mean if I examine each of these strata, I can tell how long ago each one is deposited?W: Not necessarily. You see, there mightve been some years when the river didnt flood and no settlement was deposited. You need other kinds of evidence to tell how much time mightve gone b

32、y between when one layer got deposited and one on top of it got deposited.M: And what are those other kinds of evidence you are talking about?W: Well, fossils for one. You can determine exactly how old a fossil is and thats how you can tell how the rock surrounding it is.M: Very good. The discovery

33、of that particular technique is an interesting story. It was a man named William Smith who first used fossils for the purpose of dating strata back in the 1800s. Lets take a look at how he went about making this geological breakthrough.Q: What is the discussion mainly about?解析 选 A，主旨题。本文的重点是几千年来洪水冲刷

34、河岸带来的沉积物塑造着地层，不同年代的沉积物代表着不同年代的地层，这同时也是对岩层的一个侵蚀作用，故选 A。B、C 不是重点，D 没有提到。(2).A. Stratigraphy is a rivers name.B. Stratigraphy is a description of the size of flood.C. Stratigraphy is the study of strata.D. Stratigraphy is another saying of geology.（分数：7.00）A.B.C. D.解析：解析 Q: According to the woman, what

35、 is “stratigraphy“?解析 选 C，信息明示题。从女士所提到的 stratigraphy is the description of strata in sedimentary rock，可确定 C为答案。(3).A. How rocks are eroded.B. How strata are formed in rock.C. Why flooding makes geological investigations difficult.D. Which minerals can be found in rock.（分数：7.00）A.B. C.D.解析：解析 Q: What

36、 does the woman explain when she talks about rivers?解析 选 B，综合推断题。文中提到，每次洪水冲刷河岸就会给地层带来一层沉积物，有时多有时少，依洪水的大小而定，几百万年来沉积物一层层覆盖形成了地层，由此推断，与地层形成有最直接关系的是洪水泛滥，故 B正确。(4).A. The deposits arent made of organic material.B. The deposits arent found everywhere in the world.C. The deposits harden under conditions of

37、 heat and pressure.D. The deposits dont form at regular time intervals.（分数：7.00）A.B.C.D. 解析：解析 Q: According to the discussion, why are geologists unable to determine the geological age of an area by studying sediment deposit alone?解析 选 D，综合推断题。当男士问是否研究地层就可以知道年份时，女士回答说，有些年份没有洪水，也就没有沉积物，还得通过其他方法来推测两个地

38、层之间的年代，可见，地层的形成并不是非常有规律，还需其他方法介入来推测，故 D正确。考点 1)start with 意为“第一，首先”，如：To start with we havent enough money，and secondly we are too busy一来我们钱不够，二来没时间。还可指“起初，开始”，如：The club had only six members to start with这个俱乐部最初只有六个人。2)depend on通常意为“依赖”，如：Children must depend on their parents孩子们必须依赖自己的父母。还可指“信任，相信”

39、，如：You can depend on his honesty你可以信赖他的诚实。在本文depending on the size of the flood中。该短语意为“被决定，视而定”，如：a grade depending on the results of the final exam分级由期终考试的结果而定。Questions 13 to 15 are based on the conversation you have just heard.（分数：21.00）(1).A. There arent enough cabinets.B. There is too much nois

40、e.C. Office supplies are taking up space.D. Some teaching assistants dont have desks.（分数：7.00）A.B. C.D.解析：解析 13-15W: Stan, do you have a minute?M: Oh, hi, Cathy. Sure. Whats up?W: Well, Ive been meaning to talk to you about the situation in the office.M: Im not in that very often. Its so noisy that

41、I cant work.W: Thats exactly what Im getting at. Were supposed to be able to do our preparation and marking in that office. But have you noticed? Jack constantly has students coming in to get help with his course. A lot of people are going in and out. Has anybody spoken to him about it?M: No, not ye

42、t. But someones going to have to.W: We cant really ask him to stop having students come in for help, can we?M: No, of course not. But Im not able to do my work and neither are you. I imagine its the same for the others in the office.W: Hum.Could we ask for a kind there are not enough interesting pro

43、grams that give information about the world around us. Perhaps the lack of serious programs is the fault of the commercial television system, not the fault of the people who own or control the television stations.Television in the U.S. depends on money from people who advertise their products on tel

44、evision. Therefore, television stations need to attract advertisers.The programs which attract advertisers are, of course, the programs which have larger audiences.And the programs which attract larger audiences are usually programs with lots of entertainment and action.Programs about serious subjec

45、ts, for example, medicine, science or history, are not very popular, so advertisers do not buy commercial time during programs like these. The commercial system, therefore, has a great influence on the kind of programs that television stations decide to show.Q: Why do many people criticize TV progra

46、ms in the U.S.?解析 选 D，综合推断题。由 only entertain以及 lack of serious programs等可知，娱乐节目泛滥，报道世界消息的节目寥寥无几，这正是人们抱怨的。(2).A. Businessmen. B. TV set owners.C. TV station owners. D. The commercial TV system.（分数：7.00）A.B.C.D. 解析：解析 Q: According to the speaker, who should be responsible for the lack of serious progr

47、ams on TV?解析 选 D，信息明示题。文章说 Perhaps.is the fault of the commercial television system，将原因归结到了电视商业化上。(3).A. Programs of science. B. Programs of medicine.C. Programs of art. D. Programs of history.（分数：7.00）A.B.C. D.解析：解析 Q: Which of the following is NOT mentioned as a program of serious subjects?解析 选 C，

48、信息明示题。文章提到严肃题材的节目并不太受欢迎，如：medicine，science，history，唯独没有提到 art。考点 influence 常见搭配如下：与 on/upon连用，指“影响力，感化力”，如：Many a woman has had civilizing influence upon her husband许多妇女对其丈夫都有教化的影响。与 over/with连用，指“权力，势力”，如：His parents no longer have any real influence over him他的父母对他不再有任何真正的约束力了。三、Section C(总题数：1，分数：77.00)Trees are useful to man in three important ways: they provide him with wood and other products; they give him shade; and they help to prevent (26) and floods. Unfortunately, in many parts of the world, man has not realized that the thir