公共英语五级-123及答案解析.doc

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1、公共英语五级-123 及答案解析(总分：113.00，做题时间：90 分钟)一、Section Listening (总题数：0，分数：0.00)二、Part A(总题数：1，分数：10.00)(1).The speakers are making arrangements for Monday, Tuesday and Wednesday.（分数：1.00）A.正确B.错误(2).The man doesnt have much to do during the week.（分数：1.00）A.正确B.错误(3).He will take the lawyer out to dinner.（

2、分数：1.00）A.正确B.错误(4).He will have a meeting the whole morning on Tuesday.（分数：1.00）A.正确B.错误(5).He will meet the chief examiner on Tuesday morning.（分数：1.00）A.正确B.错误(6).He will cancel the meeting with Johan Bluns parents.（分数：1.00）A.正确B.错误(7).The meeting with the lawyer is to be postponed.（分数：1.00）A.正确B.

3、错误(8).The tutorial with Maria Rosa will be cancelled.（分数：1.00）A.正确B.错误(9).Mr. Dennis is from the examining board.（分数：1.00）A.正确B.错误(10).Mr. Dennis is expected to come at 2:30 on Monday afternoon.（分数：1.00）A.正确B.错误三、Part B(总题数：4，分数：13.00)(1).What is the positive side of pruritus?A. It arises from the i

4、rritation of skin cells or nerve cells.B. It can be an unbearable nuisance.C. It is a dominant symptom of many skin diseases.D. It serves as a sensory and self-protective mechanism.（分数：1.00）A.B.C.D.(2).What in a human body generates a scratching or rubbing?A. C-fibers.B. Brain.C. Nerve.D. Spinal cor

5、d.（分数：1.00）A.B.C.D.(3).Which of the following is NOT mentioned as an itching-suppressing agent?A. Antihistamines.B. Aspirin.C. Cologne.D. Ultraviolet light therapy.（分数：1.00）A.B.C.D.(1).Why was it not a good day to launch the shuttle?A. Because there is something wrong with the shuttle.B. Because thu

6、nderstorms was coming.C. Because NASA wanted to choose a lucky date.D. Because crew members changed their plans.（分数：1.00）A.B.C.D.(2).What will another shuttle do next month if Discoverys mission is successful?A. To resume space station construction.B. To practice inspection during a spacewalk.C. To

7、deliver supplies to keep the space station running.D. To practice methods of repairing the vehicles fragile shell in orbit.（分数：1.00）A.B.C.D.(3).What does Thomas Reiter do?A. He is Vice President.B. He is Launch Director.C. He is a German astronaut.D. He is an American astronaut.（分数：1.00）A.B.C.D.(1).

8、The tramp was locked in the store _ .A. for his own mistake B. due to a misunderstandingC. by accident D. through an error of judgment（分数：1.00）A.B.C.D.(2).What action did the tramp take?A. He looted the store. B. He made himself at home.C. He went to sleep for 2 days. D. He had a Christmas party.（分数

9、：1.00）A.B.C.D.(3).When the tramp was arrested, he _ .A. laughed at the policeB. looked forward to going to prisonC. took his bottles with himD. didnt make any fuss（分数：1.00）A.B.C.D.(1).What is this passage mainly about?A. The human nose as an organ for breathing and smelling.B. The nose providing us

10、with various expressions.C. A woman poets wish to have two noses.D. Interesting comments made on Cleopatras nose.（分数：1.00）A.B.C.D.(2).What does “A person who is led around by the nose“ mean?A. A person who lets his instinct guide him.B. A person who has no will of his own.C. A person who is decisive

11、.D. A person who is full of imagination and creativity.（分数：1.00）A.B.C.D.(3).Who can be described as “a man to have his nose put out of joint“ ?A. A gay man.B. A sick man.C. A man who wants to smell a flower.D. A man who feels hurt and depressed.（分数：1.00）A.B.C.D.(4).What does “it is as plain as the n

12、ose on your face“ mean?A. It is easy to solve.B. Something looks like your nose.C. It is something quite understandable.D. There is a plain-looking nose on your face.（分数：1.00）A.B.C.D.四、Part C(总题数：1，分数：10.00)(1).Constantly revising weather forecasts bring _ to many people.（分数：1.00）填空项 1:_(2).Except f

13、or airlines, who will buy WSIs forecasts?（分数：1.00）填空项 1:_(3).When was MarketFirst launched according to the speaker?（分数：1.00）填空项 1:_(4).How many customers with a years subscription to MarketFirst has WSI signed up?（分数：1.00）填空项 1:_(5).WSI claims its forecasts are right _ of the time.（分数：1.00）填空项 1:_(

14、6).What has WSI detected in both the American and European forecast models?（分数：1.00）填空项 1:_(7).What do American forecasters tend to predict for the period from 11 to 15 days from the time of the forecast?（分数：1.00）填空项 1:_(8).Subscribers will find it _ when MarketFirst becomes more and more widespread

15、.（分数：1.00）填空项 1:_(9).What does WSI sell MarketFirst earlier to certain customers for?（分数：1.00）填空项 1:_(10).WSI believes the need for the forecast of the forecast of the forecast in the long run is _.（分数：1.00）填空项 1:_五、Section Use of Eng(总题数：1，分数：20.00)The curious youngster, the crack student who gets

16、nothing (31) As in math and sciences, the bright and inventive whiz kid who frightens his or her schoolmates, sometimes becomes an inventor that the world will honor forever for devising an important machine, improving an old process, or making a major breakthrough (32) the search for the cure for s

17、ome disease.It is rare nowadays to see one person alone invent something entirely new and startling. More (33) a number of researchers are working (34) a problem that has been studied by others for some time; a pioneer has (35) the groundwork, probably, and his or her successors are building on it,

18、step by step.Scientists, engineers, and technicians are a competitive lot; they often have a clear idea (36) what is afoot in (37) others laboratories, and they do their (38) to beat their rivals to the final glorious discovery.Some inventors are neither scientists not trained technicians: they are

19、merely tinkerers who play (39) an idea, working in a amateurish way but with great imagination and skill. While they tinker, they might stumble, entirely by chance, upon some major fact (40) they had not at all expected. The faculty of making such lucky (41) unplanned discoveries is called serendipi

20、ty. (42) the word “serendipity“ nor the occurrence that is expressed are very common. Usually discoveries are the fruit of hard work and obstinate, dogged perseverance. Thomas Edison, who (43) the electric light bulb and the phonograph(among other things)said that genius, which brings discoveries, i

21、s 10 (44) inspiration and 90 percent perspiration.It is not enough to announce ones invention to the world, (45) we have seen in the case of young Imogen Cunningham. The inventor should protect his (46) her brainchild against pirates who (47) steal the idea and make practical (48) of it. To establis

22、h ownership and rights, the wise inventor (49) to the Patent Office for a patent of invention. If someone infringes (50) inventor can appeal to the courts. The litigation may be slow, but it is usually thorough.（分数：20.00）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:_填空

23、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:_六、Section Reading Co(总题数：0，分数：0.00)七、Part A(总题数：0，分数：0.00)八、Text 1(总题数：1，分数：5.00)We have had an industrial civilization for only 200 years and already were stockpiling nuclear weapons, overpopulating the planet, poisoning the air, the wate

24、r and the soil, destroying fertile land, developing an energy crisis, and running low on resources.Many think glumly that there is no solution to all this-that we are headed on a collision course with damnation and that we are the last generation of civilization. It can even be argued that this is t

25、he inevitable consequence of intelligence: that intelligent beings anywhere gradually develop a greater and greater understanding of the laws of nature until their power exceeds their wisdom and they destroy themselves. If that is so, we may find no evidence of civilizations elsewhere, not because n

26、one have developed, but because none have endured.But if we: do find evidence of a civilization, one that is further advanced than our own (or its signals would not be so powerful as to reach us, since we cant dispose of enough power to reach it), it would mean that at least one civilization had rea

27、ched the crisis of power, surmounted it and survived. Perhaps it was differently constituted from our own and its beings were wiser-but perhaps it is just that the crisis that now seems so deadly to us is surmountable, given good will and strenuous effort.The receipt of such signals could give us ho

28、pe, then and remove the currently gathering despair just a little. Perhaps, if we are tottering on the brink, that hope can provide the added bit of strength that can pull us through and supply the crucial feathers weight to swing the balance toward survival and away from destruction.It is impossibl

29、e to get no information at all from the signal. At the very least, its characteristics should tell us the rate at which the signal-sending planet revolves about its star and rotates about its axis, together with other physical characteristics of interest. Even ff a message seems unintelligible, astr

30、onomers can still try to interpret it, and that in itself is an interesting challenge, a fascinating scientific game. Even ff we cannot reach any conclusion as to specific items of information, we might reach certain generalizations about alien psychology and that, too, is valuable knowledge.Besides

31、, even the tiniest breaks in the code could be of interest. Suppose that from the message we get one single hint of some relationship unsuspected by ourselves that, if true, might give us new insight into some aspect of physics. Scientific advances do not exist in a vacuum. That one insight could th

32、en stimulate other thoughts and, in the end, greatly accelerate the natural process by which our scientific knowledge advances.（分数：5.00）(1).According to many people, the future of civilization on earth will_.A. be destroyed by ourselves because of the increasing problems we have hadB. develop more r

33、apidly with better understanding of the laws of natureC. be lonely because no evidence of civilizations elsewhereD. follow and exceed all the intelligent beings anywhere else（分数：1.00）A.B.C.D.(2).From the writers supposition that we find evidence of a civilization, we can infer that_.A. we would face

34、 a crisis of powerB. we would learn from its beings to overcome the crisisC. it would give us hope and strength to save ourselves from the destructionD. it would indicate the danger we are facing in despair（分数：1.00）A.B.C.D.(3).In the fifth paragraph, the writer implies that_.A. it is impossible for

35、human beings to get any information from the signalB. the characteristics of the signal could tell us the signal-sending rateC. it is an interesting thing for astronomers to try to interpret an unintelligible messageD. alien psychology is just some specific items of valuable information we try to ge

36、t（分数：1.00）A.B.C.D.(4).The sentence “Scientific advances; do not exist in a vacuum“ most probably indicates_.A. that we could learn much even from the tiniest breaks in the codeB. that science can not make any progress without insight into some aspect of physicsC. that progress in science is closely

37、related to something around itD. that we must get in touch with other beings to accelerate our scientific advances（分数：1.00）A.B.C.D.(5).Whats the main message of this text?A. We must begin a celestial search for civilization.B. The receipt of signals is of great importance for our scientific advances

38、.C. Civilizations on earth as weI1 as on other planets can not avoid the disastrous end.D. Finding civilizations elsewhere is a slow remedy that can not meet an urgency.（分数：1.00）A.B.C.D.九、Text 2(总题数：1，分数：5.00)The molecules of carbon dioxide in the Earths atmosphere affect the heat balance of the Ear

39、th by acting as a one-way screen. Although these molecules allow radiation at visible wavelengths, where most of the energy of sunlight is concentrated, to pass through, they absorb some of the longer-wavelength, infrared emissions radiated from the Earths surface, radiation that would otherwise be

40、transmitted back into space. For the Earth to maintain a constant average temperature, such emissions from the planet must balance incoming solar radiation. If there were no carbon dioxide in the atmosphere, heat would escape from the Earth much more easily. The surface temperature would be so much

41、lower that the oceans might be a solid mass of ice.Today, however, the potential problem is too much carbon dioxide. The burning of fossil fuels and the cleaning of forests have increased atmospheric carbon dioxide by about 15 percent in the last hundred years and we continue to add carbon dioxide t

42、o the atmosphere. Could the increase in carbon dioxide cause a global rise in average temperature, and could such a rise have serious consequences for human society? Mathematical models that allow us to calculate the rise in temperature as a function of the increase indicate that the answer is proba

43、bly “yes“.Under present conditions a temperature of -8 can be observed at an altitude of 5 to 6 kilometers above the Earth. Below this altitude (called the radiating level), the temperature increases by about 6 per kilometer approaching the Earths surface, where the average temperature is about 15.

44、An increase in the amount of carbon dioxide means that there are more molecules of carbon dioxide to absorb infrared radiation. As the capacity of the atmosphere to absorb infrared radiation increase, the radiating level and the temperature of the surface must rise.One mathematical model predicts th

45、at doubling the atmosphere carbon dioxide would raise the global mean surface temperature by 2.5. This model assumes that the atmospheres relative humidity remains constant and the temperature decreases with altitude at a rate of 6.5 per kilometer. The assumption of constant relative humidity is imp

46、ortant, because water vapor in the atmosphere is another efficient absorber of radiation at infrared wavelengths. Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises. Ther

47、efore, more infrared radiation would be absorbed and reradiated back to the Earths surface. The resultant warming at the surface could be expected to melt snow and ice, reducing the Earths reflectivity. More solar radiation would then be absorbed, leading to a further increase in temperature.（分数：5.00）(1).According to the passage, the greatest part of the solar energy that reaches the Earth is _.A. concentrated at visible wavelengths B. absorbed by carbon dioxide moleculesC. absorbed by atmospheric water vapor D. reflected back to space by snow and ice（分数：1.00）A.B.C.D.(2).According to the pa