大学英语四级-9及答案解析.doc

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1、大学英语四级-9 及答案解析(总分：100.00，做题时间：90 分钟)一、Listening Comprehens(总题数：0，分数：0.00)二、Section A(总题数：4，分数：30.00)（分数：10.00）A.Add some parts to her report.B.Improve her writing.C.Get her report published.D.Rewrite her report.A.The man must pay his fees right away.B.She accept check as well as cash.C.Paying a litt

2、le bit late is acceptable.D.The man can pay within this month.A.Mike is good at Economics.B.Mike is good at Political Science.C.Mike likes Economics.D.Mike likes Political Science.A.The bank had fired the woman.B.The woman used to work for a lawyer.C.The work in the bank is more interesting.D.The wo

3、man used to work in a bank.A.He is successful in correcting the plan ahead of schedule.B.The woman is quite successful in correcting the plan.C.He is on his way doing the job.D.The woman had helped him a lot.（分数：6.00）A.The man went to Sam“s birthday party yesterday.B.The woman went to Sam“s birthday

4、 party yesterday.C.The woman has been terribly busy these days.D.The man went to his girlfriend“s birthday party.A.He cannot return the money right now.B.He can return the money today.C.He cannot return the money this month.D.He wants to borrow more money.A.Join the team three years later.B.Spend le

5、ss time on homework.C.Give up music for the moment.D.Try her best to win a prize.（分数：8.00）A.A baby bear jumped out of a bush.B.The team was separated by the bears.C.The team annoyed a group of bears.D.A bear appeared and began to chase them.A.She feared that human beings would hurt her.B.She was ann

6、oyed by the noises people made.C.She wanted to protect her kid from being hurt.D.She wanted to find out her lost kid.A.Human beings suddenly appear before them.B.Some unexpected animals step into the bush.C.There are loud noises coming from many people.D.They are hungry and are looking for food.A.By

7、 keeping silent.B.By speaking loudly.C.By walking quickly.D.By standing still.（分数：6.00）A.He forgot to read the requirements.B.He forgot to copy one document required.C.He forgot to carry the document required.D.He forgot to bring the copy of a document required.A.He has already got the result.B.He t

8、ook it two weeks ago.C.The result is still unknown.D.The test will be available.A.The certificate and the passport.B.The application and the results.C.The documents and the application.D.The evidence of the financial status.三、Section B(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：14.00)（分数：14.00）A.It has be

9、come extinct.B.Its number will increase continually.C.It is taken off the endangered-species list.D.It is America“s national symbol.A.It weakened their eggshells.B.It poisoned their habitat.C.It killed them directly.D.It killed all the fish they feed on.A.Reintroduce them from Europe.B.Make a ban on

10、 killing them.C.Feed them on uncontaminated fish.D.Pass a law to ban DDT.A.DDT.B.The disturbing of nests.C.Hunting.D.The destruction of their natural homes.五、Passage Two(总题数：1，分数：10.50)（分数：10.50）A.They realize the importance of keeping fit.B.There are too many traffic jams.C.The economy is slowing d

11、own.D.Gas is in short supply.A.To reduce the percentage of bike riders.B.To create special lanes for bike riders.C.To make the city beautiful and green.D.To reduce environmental pollution.A.He has never driven his own car to work.B.He moved to Washington, D.C. 6 years ago.C.He was hit by a car twice

12、 in Portland.D. He now lives in Washington,D.C.六、Passage Three(总题数：1，分数：10.50)（分数：10.50）A.Surgeons were not sure of the risk of operation.B.It“s very hard to find a suitable organ donor.C.Human body was not receptive to foreign tissue.D.Patient“s white blood cells would be destroyed.A.The donor and

13、recipient are identical twins.B.The transplanted organ is from the recipient“s relatives.C.The donor“s blood type is the same as the recipient“s.D.The recipient is not infected during the operation.A.They tried to make the transplanting safer.B.They shifted their attention to “nonessential“ parts of

14、 the body.C.They focused on transplanting several organs at one operation.D.They did research to develop less expensive anti-rejection drugs.七、Section C(总题数：1，分数：35.00)It“s well known that big animals, like polar bears, are sensitive to climate change. The Earth warms, polar ice 1 , and the bears ar

15、e out of luck. The same goes for tigers, sea lions, elephants. As the globe heats up and natural environments change, all big creatures are potentially 2 But what about insects? Some may be able to 3 just about anywhere. But most insects are just as sensitive to climate change as their larger, more

16、beloved animal 4 . What“s more, insects are arguably more important than large mammals, 5 speaking. While several thousand polar bears wander the arctic, untold billions of insects live in virtually everywhere on Earth. And they“re 6 in every ecosystem. For example, many of the world“s crops and oth

17、er plants rely on insects for pollination (授粉). In forests, insects help break down dead trees and prepare the soil for new growth. And there are the animals, like birds, that 7 insects. So how exactly will global warming affect insects? We don“t really know. Some may go extinct. Others could migrat

18、e to cooler regions and 8 native insect species there. And this could have all sorts of important implications for crops and entire ecosystems. What we do know is that because insects can“t 9 their body temperature to the same degree as mammals, they“re particularly sensitive to climate change. It“s

19、 hard to 10 what will happen to insects as the Earth warms. But it looks like we“re about to find out. （分数：35.00）填空项 1:_大学英语四级-9 答案解析(总分：100.00，做题时间：90 分钟)一、Listening Comprehens(总题数：0，分数：0.00)二、Section A(总题数：4，分数：30.00)（分数：10.00）A.Add some parts to her report.B.Improve her writing. C.Get her report

20、published.D.Rewrite her report.解析：听力原文 W: Have you finished reading my research report? I put it on your desk last week. M: Yes, but you have to revise some parts of it, I“m afraid, if you want to get it published. Q: What does the man suggest the woman do?A.The man must pay his fees right away.B.Sh

21、e accept check as well as cash.C.Paying a little bit late is acceptable. D.The man can pay within this month.解析：听力原文 M: I“m afraid I“m a day or two late with my registration fees. My paycheck didn“t come on time this month. W: It“s all right. We“re allowing a grace period until Friday. Q: What does

22、the woman mean?A.Mike is good at Economics. B.Mike is good at Political Science.C.Mike likes Economics.D.Mike likes Political Science.解析：听力原文 M: Mike got an A in Economics and only a C in Political Science. W: But he still thinks that Political Science is less complicated than Economics. Q: What do

23、we learn from the conversation?A.The bank had fired the woman.B.The woman used to work for a lawyer.C.The work in the bank is more interesting.D.The woman used to work in a bank. 解析：听力原文 M: I just stopped by your office in the bank. They told me that you had quit. Where are you working now? W: I am

24、working for a lawyer now. The pay is better and the work is much more interesting. Q: What do we learn from the conversation?A.He is successful in correcting the plan ahead of schedule.B.The woman is quite successful in correcting the plan.C.He is on his way doing the job.D.The woman had helped him

25、a lot. 解析：听力原文 W: They say you were quite successful in correcting the plan ahead of schedule. M: Well, I would be on my way doing the job if it had not been for your help last year. Q: What does the man mean?（分数：6.00）A.The man went to Sam“s birthday party yesterday.B.The woman went to Sam“s birthda

26、y party yesterday. C.The woman has been terribly busy these days.D.The man went to his girlfriend“s birthday party.解析：听力原文 W: I expected to see you at Sam“s birthday party yesterday but you were absent. M: I had a date with my girlfriend. I have been terribly busy these days. You know, she is compla

27、ining. Q: What do we learn from the conversation?A.He cannot return the money right now. B.He can return the money today.C.He cannot return the money this month.D.He wants to borrow more money.解析：听力原文 W: About that money I lent you, isn“t today the day you said you“d return it? M: Oh, my finances ha

28、ve been really tight this month, but all I need is a few more days. Q: What does the man imply?A.Join the team three years later.B.Spend less time on homework.C.Give up music for the moment. D.Try her best to win a prize.解析：听力原文 W: I have tried my best to win a prize since I joined the music team, b

29、ut three years later I still haven“t. M: It takes so much time from your homework. Perhaps you should forget about music for now. Q: What does the man suggest the woman do?（分数：8.00）A.A baby bear jumped out of a bush.B.The team was separated by the bears.C.The team annoyed a group of bears.D.A bear a

30、ppeared and began to chase them. 解析：听力原文 W: Hi, Jack. How was the camping last week? M: Oh, it was horrible. We nearly got killed. W: What happened? M: Well, when we were walking on the path along one of the hills a bear suddenly jumped out of a bush and started to chase us. W: That“s terrible. Did

31、anybody get hurt? M: Fortunately, we ran away before the bear got closer. We all agreed that we had never run so fast in our whole lives. W: So why did the bear try to attack you? Was it hungry and looking for food? M: No, it was more horrible. We later found out that the bear was a mother. And she

32、was separated by us from her baby. She jumped out because she feared that her kid would get hurt. After the camping we learned not to get between an adult and any young bears. W: But how could you make sure that you can see the bears? Supposed the mother and the children are hidden in a bush? M: Wel

33、l, it“s actually easy to avoid encounter with bears. They are shy animals and normally avoid human beings. In most of the cases they attack because they are shocked by the unexpected presence of human. What you have to do is to scare them away by making noises before you get too close. W: I see, so

34、next time when I go camping I“ll sing aloud when I“m walking. M: That“s a good idea. What happened during the man“s camping?A.She feared that human beings would hurt her.B.She was annoyed by the noises people made.C.She wanted to protect her kid from being hurt. D.She wanted to find out her lost kid

35、.解析：听力原文 Why did the mother bear jump out?A.Human beings suddenly appear before them. B.Some unexpected animals step into the bush.C.There are loud noises coming from many people.D.They are hungry and are looking for food.解析：听力原文 Why do bears attack people?A.By keeping silent.B.By speaking loudly. C

36、.By walking quickly.D.By standing still.解析：听力原文 How to scare bears away before getting too close?（分数：6.00）A.He forgot to read the requirements.B.He forgot to copy one document required. C.He forgot to carry the document required.D.He forgot to bring the copy of a document required.解析：听力原文 W: Good mo

37、rning. I“d just like to ask you a few questions about your visa application. Can you just check that the information here is correct? M: Sure yes, that“s all correct. W: Thank you. For your student visa, we need evidence of your financial status for the last five years. In your application, you only

38、 included it for four years. M: Really? Let me check if I have the document here. Yes, here is the document you need. I“m sorry. I must have forgotten to make a copy of it for you. W: Thank you. That“s fine. The documents relating to your education are fine. The offer from the university is conditio

39、nal on your English language proficiency test result. Do you have that yet? M: Not yet. I took the test last weekend. The results will not be available for another two or three weeks. W: OK. Everything else is in order. I“ll be happy to give you a student visa, valid for the duration of your course,

40、 when you bring me a certificate showing the result of your language test. M: Thank you very much. You don“t need any other document from me to process my application? W: None. Make an application to see me when you receive your results. When you bring the certificate to me, bring your passport too.

41、 Then I can give you the visa. M: Thank you very much. W: Glad to help. What did the man forget to do?A.He has already got the result.B.He took it two weeks ago.C.The result is still unknown. D.The test will be available.解析：听力原文 What do we learn about the man“s English language proficiency test?A.Th

42、e certificate and the passport. B.The application and the results.C.The documents and the application.D.The evidence of the financial status.解析：听力原文 What should the man bring with him to get the visa?三、Section B(总题数：0，分数：0.00)四、Passage One(总题数：1，分数：14.00)（分数：14.00）A.It has become extinct.B.Its numbe

43、r will increase continually.C.It is taken off the endangered-species list.D.It is America“s national symbol. 解析：听力原文 America“s national symbol, the bald eagle, almost went extinct 20 years ago. But it has made a comeback. In fact, the US Fish and Wildlife Service is considering the possibility of ta

44、king it off the endangered-species list. Once, more than 50,000 pairs of bald eagles nested across the country. But by 1960, that number had fallen below 400. The chief killer was the widely used DDT. Fish soaked up DDT, died, and were washed up on shores, where bald eagles ate them up. DDT caused e

45、agle eggshells to weaken and crack. The shells became so thin that they cracked before the babies emerged from the eggs. The eagle had no defense against DDT. Fortunately, in 1972, a law was passed to ban DDT, which saved the bald eagle from dying out. And since then, wildlife biologists have reintr

46、oduced bald eagles from Canada to America. The result was that last year U.S. birdwatchers counted 11,610 bald eagles in the country. If it were dropped from the endangered list, the bald eagle would still be a threatened species. That means the bird would continue to get the same protectionno hunti

47、ng allowed, and no disturbing of nests. But bald eagles still face tough times. The destruction of their natural homes could be the next DDT, causing eagle numbers to drop quickly. What do we learn about the bald eagle?A.It weakened their eggshells. B.It poisoned their habitat.C.It killed them direc

48、tly.D.It killed all the fish they feed on.解析：听力原文 How did DDT affect the bald eagles?A.Reintroduce them from Europe.B.Make a ban on killing them.C.Feed them on uncontaminated fish.D.Pass a law to ban DDT. 解析：听力原文 What has been done to prevent bald eagles from dying out?A.DDT.B.The disturbing of nest

49、s.C.Hunting.D.The destruction of their natural homes. 解析：听力原文 According to the passage, what will cause the number of bald eagles to decline?五、Passage Two(总题数：1，分数：10.50)（分数：10.50）A.They realize the importance of keeping fit.B.There are too many traffic jams.C.The economy is slowing down. D.Gas is in short supply.解析：听力原文 More and more Americans have been leaving their cars at home and riding to work on bicycles. They are doing this because of gas prices, a slowing economy and concerns about the environment. Andy Clar