大学四级-263及答案解析.doc

1、大学四级-263 及答案解析(总分：712.00，做题时间：90 分钟)一、BPart Writing(总题数：1，分数：106.00)1.概括说明中美大学生的主要收入来源。 2分析一下产生这种不同现象的可能原因。 3你对其将来趋势的预测。 （分数：106.00）_二、BPart Reading (总题数：10，分数：70.00)2.There are already antidepressants that control levels of a brain chemical called serotonin.（分数：7.00）填空项 1:_3.In the pursuit of happi

2、ness human beings have always worried about missing its reality.（分数：7.00）填空项 1:_4.Animals can be made to do both when the activity of certain genes is doubled.（分数：7.00）填空项 1:_5.It would be a mistake to think that drugs that have an impact on memory necessary will have an effect on intelligence.（分数：7

3、00）填空项 1:_6.Helicon Therapeutics was established in 1965.（分数：7.00）填空项 1:_7.Dr. Tully is also acting chief technological officer of Helicon Therapeutics.（分数：7.00）填空项 1:_8.Dr. Joe Z Tsien is a professor of mloecular biology at Harvard.（分数：7.00）填空项 1:_9.Now the race is on to develop pills to make peop

4、le smarter, at least 1.（分数：7.00）填空项 1:_10.Dr. Tully created genetically engineered fruit flies that he said had“ 1.“（分数：7.00）填空项 1:_11.Any pill used widely by healthy people to improve memory, would have to be 1.（分数：7.00）填空项 1:_三、BPart Listenin(总题数：1，分数：56.00)BQuestions 11 to 18 are based on the con

5、versation you have just heard./B（分数：56.00）A.Apple pies.B.Chocolate cakes.C.Ice cream.D.Nothing:A.She needs more practice.B.She is very good at her study.C.She shouldnt be so ambitious.D.Shed better take care of her health.A.She could use his car.B.She always drives rental cars.C.Last week she. let h

6、im drive.D.Its possible for her to rent a car.A.She paid 30.00 for the coat.B.Her husband presented it to her as a gift.C.She bought the coat on her thirteenth birthday.D.Her friend sent it to her as a birthday present.A.He visited the new student many times.B.Hell see the exhibit after June.C.He wa

7、nts to show his work at the student center.D.He can see the exhibit before it closes.A.The picnic will probably be cancelled.B.Hes glad that the picnic is in this weekend.C.Its not going to rain.D.He knows where to hold picnic.A.The man.B.Nancy.C.Mary.D.No one.A.Shopping for shoes.B.Reading the maga

8、zine.C.Writing an article.D.Studying for a chemistry test四、BQuestions 19 to(总题数：1，分数：28.00)A.The reproductive cycle of barnacles.B.A new source of protein.C.Types of sea animals.D.The adhesive quality of barnacles.A.They eat protein.B.They never move from one location.C.They cause erosion of rocks.D

9、They are found only in deep water.A.It works on wet surfaces.B.Its stronger than synthetic glue.C.Its a nutritious source of protein.D.It has been used successfully by doctors.A.Nutrition.B.Ecology.C.Medicine.D.Geology.五、BQuestions 23 to(总题数：1，分数：21.00)A.To see how certain chemicals produce differe

10、nt flavors.B.To determine if a person can distinguish salty and sweet solutions.C.To map the location of taste buds.D.To count the number of taste buds.A.Just five minutes.B.Slightly less than an hour.C.Between one and two hours.D.A little more than two hours.A.That taste buds arent located only on

11、the tongue.B.That taste buds arent all the same size.C.That solutions must be measured and mixed careful.D.That he shouldnt swallow the solutions.六、BSection B/B(总题数：1，分数：21.00)BPassage One Questions 26 to 28 are based on the passage you have just heard./B（分数：21.00）A.His own room.B.A babysister.C.A l

12、ot of friends.D.A lot of toys.A.Clean.B.Dirty.C.Noisy.D.Quiet.A.Everybody else wanted it.B.Steven promised to keep it clean.C.Nobody else wanted it.D.Steven promised to take care of it.七、BPassage Two(总题数：1，分数：21.00)A.A house which has been shut up for some period of time.B.An empty house that is usu

13、ally kept clean.C.A comfortable house.D.A new house with fresh and clean smell.A.The chairs dont look anything normal.B.The chairs are very neatly arranged.C.The chairs look as if no one has ever sat on them.D.Both A and B.A.Because the kitchen has a strange smell.B.Because everything looks old and

14、unpleasant.C.Because one cannot find what he or she needs.D.Because all of the above.八、BPassage Three(总题数：1，分数：28.00)A.Science fiction is not a fairly new in literature.B.Science fiction is very popular with people today.C.Science fiction only deals with terrible ideas.,D.Many successful films are b

15、ased on science fiction stories.A.One hundred years ago.B.Two hundred years ago.C.Hundreds of years ago.D.Thousands of years ago.A.Some old form of ideal world.B.Adventures in ocean.C.Predicting development in technology and their effects on society.D.Future worlds which have nothing in commnon with

16、 our world.A.Science fiction writers can foretell things.B.Science develops as fast as is predicted by writers.C.Science develops faster than writers can imagine.D.Science fiction writers can see how science is going.九、BSection C/B(总题数：1，分数：77.00)The world is not only hungry, butU (36) /Ufor water.

17、That way seems strange to you, sinceU (37) /U75% of the earths surface is covered with water. But aboutU (38) /Uof this huge amount is seawater, or salt water. Man can only drink and use the other 3%the fresh water from rivers, lakes, underground, and other sources. And we cannot even use all of tha

18、t, because some of it is in the form ofU (39) /Uand glaciers. Even worse, some of it has beenU (40) /U However, this small amount of fresh water is still enough for us. But our need for water isU (41) /Urapidly. Only if we take steps t5 deal with this problem now can we avoid a severeU (42) /UwaterU

19、 (43) /Ulater on. U (44) /U. Today water is used only once and then discharged into a sewer system,U (45) /U. But it is possible to pipe used water to a purifying plant. There it can be filtered and treated with chemicals so that it can be used again. But even if every large city purified and reused

20、 its water, we still would not have enough.U (46) /UIf we take these steps well be in no danger of drying up!（分数：77.00）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:_填空项 1:_十、BPart Reading (总题数：10，分数：90.00)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:_十

21、一、BSection B/B(总题数：5，分数：44.50)22.Esperanto is _.（分数：8.90）A.not an important living languageB.Zamnehofs mother tongueC.accepted by all peopleD.a favorite of some linguists23.It is implied but not stated that _.（分数：8.90）A.Zamnehof hated RussianB.Peter Miles is an astronautC.English is more difficult t

22、o learn than EsperantoD.Eight million people can speak Esperanto24.What is the best title for the passage?（分数：8.90）A.EsperantoAn Artificial Language.B.EsperantoPeoples Hope.C.EsperantoA Language For All.D.EsperantoA Nice Thought.25.The author speaks of Esperanto _.（分数：8.90）A.in an objective wayB.in

23、an unfavorable wayC.in a subjective wayD.in a favorable way26.Peter Miles is（分数：8.90）A.from the Esperanto Translation Service in EnglandB.in charge of the Esperanto Translation Organization of BritainC.a member of the Esperanto Translation Organization in BritainD.a member of the Translation Service

24、 of Europe十二、BPassage Two/B(总题数：5，分数：44.50)27.The purpose of the article is to tell us _.（分数：8.90）A.the effect of antibioticsB.not to use antibiotics unless necessaryC.that antibiotics are harmfullD.that our natural defence systems are superior to antibiotics28.The cause(s) of the excessive use of a

25、ntibiotics is (are) _ according to the passage.（分数：8.90）A.that some doctors prescribe them too freelyB.that patients ask for them even for minor conditionsC.the ignorance of the body defence systemsD.all of the above29.The disadvantage (s) of taking antibiotics is (are) that _.（分数：8.90）A.the cure co

26、urses are too longB.the longer cure courses increase the risk of resistance to the drugsC.they even kill harmless organismsD.all of the above30.From the passage we can learn that _.（分数：8.90）A.Jacks trouble is seriousB.the family doctor has been called inC.people depend too much on antibiotics for sm

27、all infectionD.most people prefer antibiotics to any other medicine31.Tile word “challenged“ in Para. 3 most probably means _.（分数：8.90）A.“fought against“B.“criticized“C.“doubted or suspected“D.“disapproved“十三、BPart Cloze/(总题数：20，分数：70.00)A.wavingB.noddingC.shakingD.speakingA.ofB.toC.onD.withA.notB.t

28、ooC.soD.rarelyA.communityB.commitmentC.comprehensionD.competitivenessA.struckB.attackedC.foughtD.defeatedA.ThusB.SoC.ThoughD.EvenA.coachingB.cachingC.consultingD.instructingA.inB.byC.forD.aboutA.politicalB.culturalC.educationalD.historicalA.justB.everC.stillD.hardlyA.withB.forC.asD.ofA.andB.orC.asD.

29、thereforeA.dealtB.doneC.metD.reachedA.conveyB.identifyC.acknowledgeD.distinguishA.inB.upC.afterD.forA.singedB.editedC.markedD.printedA.getB.judgeC.placeD.lockA.doubtB.ideaC.reasonD.senseA.shortlyB.directlyC.exclusivelyD.practicallyA.goodB.fineC.surprisingD.nice十四、BPart Translat(总题数：5，分数：35.00)52. 1(

30、对我们不好) to read in a strong light.（分数：7.00）填空项 1:_53.We should 1(尽我们最大的努力)to catch up with the developed countries as soon as possible.（分数：7.00）填空项 1:_54.Its not polite to 1(嘲笑) those people in trouble.（分数：7.00）填空项 1:_55.The traffic policeman told the driver not to 1(犯同样的错误) any more.（分数：7.00）填空项 1:_

31、56.The best way to learn English is to speak it 1(尽可能多地).（分数：7.00）填空项 1:_大学四级-263 答案解析(总分：712.00，做题时间：90 分钟)一、BPart Writing(总题数：1，分数：106.00)1.概括说明中美大学生的主要收入来源。 2分析一下产生这种不同现象的可能原因。 3你对其将来趋势的预测。 （分数：106.00）_正确答案：()解析：According to the investigation into the income sources of students, the income of the

32、 American and the Chinese students comes from almost the same channels: parents, part-time job and scholarship. How-ever, the percentage of each is quite different. Half the American studentsincome is from their parents and fifteen percent from the scholarships granted by colleges and universities.

33、Chinese students, on the other hand, get ninety percent of their income from their parents. In my opinion, there are two main reasons for the phenomenon. American students are taught to be independent right from childhood while Chinese parents care so much for their children that it is almost unthin

34、kable for college students to live on their own. In addition, Chinese students have fewer opportunities to find part-time jobs. Nevertheless more and more Chinese students are seeking part-time jobs nowadays. Theyre eager to acquire some social skills and earn extra money which will make them less d

35、ependent on their parents. But I expect the source of American studentsincome will remain the same.二、BPart Reading (总题数：10，分数：70.00)2.There are already antidepressants that control levels of a brain chemical called serotonin.（分数：7.00）填空项 1:_ （正确答案：Y）解析：从文章的第二段的第一句可知本句话正确。3.In the pursuit of happines

36、s human beings have always worried about missing its reality.（分数：7.00）填空项 1:_ （正确答案：Y）解析：从文章的第五段的第一句可知。4.Animals can be made to do both when the activity of certain genes is doubled.（分数：7.00）填空项 1:_ （正确答案：N）解析：解题的关键在第八段的首句。5.It would be a mistake to think that drugs that have an impact on memory nec

37、essary will have an effect on intelligence.（分数：7.00）填空项 1:_ （正确答案：Y）解析：此句是第十段中的原文。6.Helicon Therapeutics was established in 1965.（分数：7.00）填空项 1:_ （正确答案：NG）解析：文中并没有提到 Helicon Therapeutics 公司建立的时间。7.Dr. Tully is also acting chief technological officer of Helicon Therapeutics.（分数：7.00）填空项 1:_ （正确答案：N）解

38、析：文章的第十一段的首句中说到 Dr. Tully 是 chief scientific officer。8.Dr. Joe Z Tsien is a professor of mloecular biology at Harvard.（分数：7.00）填空项 1:_ （正确答案：N）解析：判断的依据在文章的第十四段。9.Now the race is on to develop pills to make people smarter, at least 1.（分数：7.00）填空项 1:_ （正确答案：in one sense）解析：本句是文章第门段的道句话。10.Dr. Tully cr

39、eated genetically engineered fruit flies that he said had“ 1.“（分数：7.00）填空项 1:_ （正确答案：photographic memory）解析：答案在文章的第八段。11.Any pill used widely by healthy people to improve memory, would have to be 1.（分数：7.00）填空项 1:_ （正确答案：extremely safe）解析：答案在文章的第十二段。三、BPart Listenin(总题数：1，分数：56.00)BQuestions 11 to 1

40、8 are based on the conversation you have just heard./B（分数：56.00）A.Apple pies.B.Chocolate cakes.C.Ice cream.D.Nothing: 解析：听力原文 M: Id like to order pie and ice cream for dessert. Would you want tile same? W: The chocolate cake looks wonderful, but Ive got to watch my weight. But you go ahead and order

41、 yours. Q: What is the woman going to have for her dessert?A.She needs more practice. B.She is very good at her study.C.She shouldnt be so ambitious.D.Shed better take care of her health.解析：听力原文 W: I dont know whether I will be able to keep up with the rest of my class. M: Dont lose heart, practice

42、makes perfect, remember? Q: What does the man imply?A.She could use his car.B.She always drives rental cars.C.Last week she. let him drive.D.Its possible for her to rent a car. 解析：听力原文 W: I need a car to use this weekend. M: You could always rent one. Q: What does the man mean?A.She paid 30.00 for t

43、he coat.B.Her husband presented it to her as a gift. C.She bought the coat on her thirteenth birthday.D.Her friend sent it to her as a birthday present.解析：听力原文 M: Thats a lovely coat youre wearing. W: Oh, thank you. My husband gave it to me for my 30th birthday. Q: What did the woman say about the c

44、oat?A.He visited the new student many times.B.Hell see the exhibit after June.C.He wants to show his work at the student center.D.He can see the exhibit before it closes. 解析：听力原文 W: Have you visited the new exhibit? M: Not yet, but it will be at the student center until June. Q: What does the man im

45、ply?A.The picnic will probably be cancelled. B.Hes glad that the picnic is in this weekend.C.Its not going to rain.D.He knows where to hold picnic.解析：听力原文 W: Ive just heard there are going to be showers on and-off all weekend. M: There goes the picnic. Q: What does the man mean?A.The man.B.Nancy. C.Mary.D.No one.解析：听力原文 M: You study harder than Nancy. W: To be honest, Mary works even harder. Q: Who works hardest7A.Shopping for shoes.B.Reading the magazine.C.Writing an article.D.Studying for a chemistry t