专业四级-780及答案解析.doc

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1、专业四级-780及答案解析 (总分：149.00，做题时间：90分钟)一、PART DICTATION(总题数：1，分数：15.00)1.Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings the p

2、assage will be read sentence by sentence, or phrase by phrase with intervals of 15 seconds. The last reading will read at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more.Please write the whole passage.（分数：15.00

3、）_二、PART LISTENING COM(总题数：0，分数：0.00)三、SECTION A CONVERSATI(总题数：3，分数：11.00)（分数：4.00）A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.（分数：4.00）A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.四、SECTION B PASSAGES(总题数：3，分数：10.00)（分数：4.00）A.B.C.D.A.B.C.D.A.B.C.D.A.B.C.D.（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.

4、（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.五、SECTION C NEWS BROAD(总题数：5，分数：10.00)（分数：2.00）A.B.C.D.A.B.C.D.（分数：3.00）A.B.C.D.A.B.C.D.A.B.C.D.（分数：2.00）A.B.C.D.A.B.C.D.（分数：2.00）A.B.C.D.A.B.C.D.2.（分数：1.00）A.B.C.D.六、PART CLOZE(总题数：1，分数：20.00)How much seawater has been sprayed into the Fukushima Daiichi nuclear reac

5、tors to keep them cool? More (31) than the number of tons of water is the amount of sea salt that was (32) in the reactors: ninety-nine thousand pounds (33) in reactors NO. 2 and 3, and fifty seven thousand in reactor No.1, according to the Times. (34) one might suppose, it is not good for any sort

6、of (35) to have that much salt in it. During the Berlin Airlift, one of the biggest challenges was carrying salt into the city: no matter how it was (36) , it always seemed to get into and (37) the planes engines. (And yet the city needed salt to survive. ) And it is not good for nuclear reactors; t

7、he heat and the way that it came in, on water, meant that it (38) and crystallized around the uranium fuel rods. From the Times:Crusts insulate the rods from the water and allow them to (39) up. If the crusts are thick enough, they can block water from (40) between the fuel rods. As the rods heat up

8、, their zirconium cladding can rupture, (41) releases gaseous radioactive iodine inside and (42) even cause the uranium to melt and release much more radioactive material.Getting fresh water in will (43) . Fresh, or rather bottled, water, is also (44) babies have been drinking as far away as Tokyo,

9、after the levels of radioactive iodine 131 in the water there proved too (45) . (One preventative move is taking potassium iodide, commonly added to table salt here. ) This afternoon, there was (46) that the iodine 131 level had dropped below the official level of danger for babiesbut since there wa

10、snt a very good explanation of how it got into Tokyos water in the first place, that was less (47) than it might have been. But it was an up-and-down day for the (48) at Fukushima Daiichi: two workers were injured when water, (49) with radiation, got into their boots. They are in the hospital now. T

11、here was also white smoke above two of the reactors. Its not clear what that was (50) .（分数：20.00）(1).A. significant B. evocative C. dangerous D. accessible（分数：1.00）A.B.C.D.(2).A. left B. burned C. melted D. absorbed（分数：1.00）A.B.C.D.(3).A. both B. either C. each D. every（分数：1.00）A.B.C.D.(4).A. when B

12、. since C. until D. as（分数：1.00）A.B.C.D.(5).A. instrument B. machinery C. reactor D. engine（分数：1.00）A.B.C.D.(6).A. packaged B. transported C. preserved D. consumed（分数：1.00）A.B.C.D.(7).A. remove B. corrode C. convert D. block（分数：1.00）A.B.C.D.(8).A. centered B. coated C. damaged D. gatherd（分数：1.00）A.B.

13、C.D.(9).A. hold B. get C. tighten D. heat（分数：1.00）A.B.C.D.(10).A. exchanging B. circulating C. extending D. spreading（分数：1.00）A.B.C.D.(11).A. that B. what C. as D. which（分数：1.00）A.B.C.D.(12).A. may B. should C. must D. shall（分数：1.00）A.B.C.D.(13).A. succeed B. help C. make D. achieve（分数：1.00）A.B.C.D.

14、(14).A. whatever B. which C. what D. whichever（分数：1.00）A.B.C.D.(15).A. low B. high C. much D. concentrated（分数：1.00）A.B.C.D.(16).A. information B. saying C. word D. evidence（分数：1.00）A.B.C.D.(17).A. reassuring B. secure C. satisfying D. optimistic（分数：1.00）A.B.C.D.(18).A. accident B. treatment C. strug

15、gle D. disaster（分数：1.00）A.B.C.D.(19).A. filled B. combined C. loaded D. contaminated（分数：1.00）A.B.C.D.(20).A. generating B. bringing C. signaling D. involving（分数：1.00）A.B.C.D.七、PART GRAMMAR AND V(总题数：30，分数：30.00)3.Parents often faced the _ between doing what they felt was good for the development of

16、the child and what they could stand by way of undisciplined noise and destructiveness.A. paradox B. junction C. dilemma D. premise（分数：1.00）A.B.C.D.4.The city is undergoing such tremendous development that new buildings are going _ everywhere everyday.A. by B. beyond C. down D. up（分数：1.00）A.B.C.D.5.I

17、n the eyes of many ordinary people , scholars are by _very unpractical.A. accident B. natureC. anticipation D. heart（分数：1.00）A.B.C.D.6.Mary could be a very attractive girl but she_about her clothes.A. cares little B. cared little C. had cared little D. would care little（分数：1.00）A.B.C.D.7.Henry is so

18、 arrogant after being promoted president of the company _ accept the invitation to his former coworkers wedding.A. in order to B. as to C. as to not D. as not to（分数：1.00）A.B.C.D.8.The authority claims that the new pills can dramatically increase life expectancy, but theres no evidence to support thi

19、s.A. empirical B. actual C. concrete D. imperial（分数：1.00）A.B.C.D.9.One cannot be too careful, _ ?A. can one B. can he C. can she D. can they（分数：1.00）A.B.C.D.10.It was necessary that he _ everything ready ahead of time.A. has made B. had made C. make D. makes（分数：1.00）A.B.C.D.11.The child will get som

20、ewhere _ left uncared for.A. if B. since C. offer D. unless（分数：1.00）A.B.C.D.12._ each other for 10 years, they decided to meet this year.A. Not having seen B. Having not seen C. No seeing D. Seeing not（分数：1.00）A.B.C.D.13._ air is to man, so is water to fish.A. Like B. As C. Since D. For（分数：1.00）A.B.

21、C.D.14.A series of seminars _ scheduled.A. has B. is C. / D. are（分数：1.00）A.B.C.D.15.We find that some birds _twice a year between hot and cold countries.A. transfer B. migrate C. commute D. mobilize（分数：1.00）A.B.C.D.16.You must have got up late this morning, _?A. mustnt you B. havent youC. have you D

22、. didnt you（分数：1.00）A.B.C.D.17.He stole into his room _ he should awaken his parents.A. in order that B. so that C. with the result that D. in case（分数：1.00）A.B.C.D.18._ vastness of the Grand Canyon, it is difficult to capture it in a single photograph.A. While the B. The C. For the D. Because of the

23、（分数：1.00）A.B.C.D.19.My friend had no _ of helping the man who was acting too rudely.A. ambition B. desire C. willingness D. intention（分数：1.00）A.B.C.D.20.When preparing elementary school test, care should be taken_.A. not to make the vocabulary more difficult than necessaryB. not to make the vocabula

24、ry that difficultC. so as to not make the vocabulary part too hardD. in not making the vocabulary a problem in terms of it difficulty（分数：1.00）A.B.C.D.21.After Mark Felt revealed himself to be Deep Throat, the breaking news _ all over the globe in a second.A. sparkled B. flashed C. shined D. twinkled

25、（分数：1.00）A.B.C.D.22.Please do not be _ by his bad manners since he is merely trying to attract attention.A. disregarded B. distorted C. irritated D. intervened（分数：1.00）A.B.C.D.23.Only ten to twenty percent of cold viruses are transmitted by carders, who, sneezing and coughing, _the viruses into the

26、air.A. spray B. sprinkle C. spread D. sprout（分数：1.00）A.B.C.D.24.When it was my turn to introduce myself, I was so nervous that my mind went _.A. blank B. faint C. vain D. dim（分数：1.00）A.B.C.D.25.I dont know you want to keep the letter. Ive _ it up.A. cracked B. torn C. broken D. disposed（分数：1.00）A.B.

27、C.D.26.Taking photographs is strictly_here, as it may damage the precious cave paintings.A. forbiddenB. rejectedC. excludedD. denied（分数：1.00）A.B.C.D.27.The board deemed it urgent that these files _right away.A. had to be printed B. should have been printedC. must be printed D. should be printed（分数：1

28、.00）A.B.C.D.28.Bill is an example of a severely disabled person who has become _ at many survival skills.A. proficient B. persistent C. consistent D. sufficient（分数：1.00）A.B.C.D.29.He is quite worn out from years of hard work. He is not the man _ he was twenty years ago.A. whichB. thatC. whoD. whom（分

29、数：1.00）A.B.C.D.30.However, as the evidence began to _ experts from the Zoo felt obliged to investigate.A. accumulate B. amass C. assemble D. congregate（分数：1.00）A.B.C.D.31.The use of money is not limited to high civilizations; actually many primitive peoples have_ moneys of their own.A. discovered B.

30、 devised C. diverted D. diversified （分数：1.00）A.B.C.D.32.Statistics is a discipline _all the other sciences.A. affected B. affecting C. to be affected D. being affected（分数：1.00）A.B.C.D.八、PART READING COMPR(总题数：0，分数：0.00)九、TEXT A(总题数：2，分数：8.00)Space is a dangerous place, not only because of meteors(流星

31、) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer

32、 space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.Radiation is the greatest known danger to

33、 explorers in space. The unit of radiation is called rem . Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage-a per

34、son may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed(畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, t

35、he Apollo crew accumulated a large amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in

36、a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.（分数：3.00）(1).We know from the passage that _.A. exposure to even tiny amounts of radiation is fatalB. the effect of exposure to radiation is slow in comingC. radiation i

37、s avoidable in space explorationD. astronauts in spacesuits neednt worry about radiation damage（分数：1.00）A.B.C.D.(2).It can be inferred from the passage that _.A. the Apollo mission was very successfulB. protection from space radiation is no easy jobC. astronauts will have deformed children or grandc

38、hildrenD. radiation is not a threat to well-protected space explorers（分数：1.00）A.B.C.D.(3).The best title for this passage would be _.A. The Atmosphere and Our Environment B. Research on RadiationC. Effects of Space Radiation D. Importance of Protection Against Radiation（分数：1.00）A.B.C.D.Every newborn

39、 baby is dealt a genetic hand of cards which helps to determine how long he or she will be allowed to play the game of life. There are good cards, which predispose those who have them to a long and healthy existence, and there are bad cards, which predispose people to high blood pressure, say, or he

40、art disease. Occasionally, cards are dealt out that doom their holders to an early death. In the past, people never knew exactly which cards in other words, which genes they had been dealt. They could guess at the future only by looking at the kind of health problems experienced by their parents or

41、grandparents.Genetic testing, which makes it possible to probe for dangerous genes, has changed all this. But, until recently, if you tested positive for a bad gene, you were not obliged to reveal this to anyone else except in a few extreme circumstances. This month, however, Britain became the firs

42、t country in the world to allow life insurers to ask for test results.So far, approval has been given only for a test for a fatal brain disorder known as Huntingtons disease. But ten other tests (for seven diseases) are already in use and are awaiting similar approval.The independent body that gives

43、 approval, the Department of Healths Genetics and Insurance Committee does not have to decide whether the use of genetic information in insurance is ethical. It must judge only whether the tests are believable to insurers. In the case of Huntingtons disease the answer is clear-cut. People unlucky en

44、ough to have this gene will die early, and cost life insurers dearly.This is only the start. Clear-cut genetic answers, where a gene is simply and directly related to a persons risk of death, are uncommon. More usually, a group of genes is associated with the risk of developing a common disease, dependent on the presence of other genetic or environmental fac