1、公共英语四级-5 及答案解析(总分：123.00，做题时间：90 分钟)一、BSection Liste(总题数：0，分数：0.00)二、BPart A/B(总题数：1，分数：5.00)（分数：5.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_三、BPart B/B(总题数：1，分数：25.00)（分数：25.00）(1).Whats the main topic of the talk?（分数：5.00）_(2).What must you do if you smell smoke at night?（分数：5.00）_(3).Why is it necess
2、ary not to open a hot door?（分数：5.00）_(4).What is the most important thing to do when a fire appears?（分数：5.00）_(5).What is the telephone number everybody should remember?（分数：5.00）_四、BPart C/B(总题数：4，分数：13.00)（分数：4.00）(1).Why did the woman open the door when someone knocked at it? A.Because she knew th
3、e two men. B.Because she thought it was her husband. C.Because she was waiting for them. D.Because she was afraid of them.（分数：1.00）A.B.C.D.(2).Which of the following is NOT among the things taken by the robbers? A.A camera. B.A wallet with $200 in it. C.A watch. D.Some jewelry.（分数：1.00）A.B.C.D.(3).W
4、hy didnt the woman report soon after the robbers ran off? A.Because she fainted. B.Because she was too scared. C.Because her husband didnt allow her to. D.Because she was bound and gagged.（分数：1.00）A.B.C.D.(4).12 Questions 1416 are based on the following passage.（分数：1.00）_（分数：3.00）(1).What kind of pe
5、rson is called “mall rat“? A. One spends so much time at malls. B. One steals at malls. C. One sees dentists at malls. D. One eats a lot at malls.（分数：1.00）A.B.C.D.(2).Which of the following is NOT the reason why people like malls? A. They feel safe because malls have police station of private securi
6、ty guards. B. They can be served free meals after doing shopping. C. They can do about everything at malls. D. The weather inside is always fine.（分数：1.00）A.B.C.D.(3).How many cars can be parked in the Mail of America? A. 350 B. 2750 C. 7500 D. 1965（分数：1.00）A.B.C.D.（分数：3.00）(1).What do we learn from
7、the passage about Catherines father? A. He is a successful investment banker. B. He sold his falling bank. C. He worked in the falling bank. D. He is good at editing.（分数：1.00）A.B.C.D.(2).What does the speaker tell us about Catherine Gram? A. She leaded the company after her father retired. B. She is
8、 not so successful. C. Her husband died of cancer. D. She worked in her fathers newspaper.（分数：1.00）A.B.C.D.(3).What does the comment by employees of The Washington Post suggest? A. She didnt do much contribution to the world. B. Her life is worthy. C. If there is not Catherine, the world will appear
9、 differently. D. If there is not Catherine, the world will be the same.（分数：1.00）A.B.C.D.（分数：3.00）(1).Where would you find this months issue of Time Magazine? A. Level 1. B. Level 2. C. Level 3. D. Level 4.（分数：1.00）A.B.C.D.(2).Where would you find a book on electronic engineering? A. Level 1. B. Leve
10、l 2. C. Level 3. D. Level 4.（分数：1.00）A.B.C.D.(3).How much would you have to pay in late fees if you had a book that was 40 days overdue? A. 50 cents. B. $15.00. C. $15.50. D. $ 20.00.（分数：1.00）A.B.C.D.五、BSection Use o(总题数：1，分数：20.00)Boeing Cos Sonic Cruiser, a proposed faster airliner, would be mostl
11、y blended material, program director Walt Gillette said recently. In its quest for theU U 1 /U /Uto fly 15 to 20 per cent faster thanU U 2 /U /Uairliners, the US company says about 60 per cent of the new planesU U 3 /U/U, including the wing, would be a carbon-fiber-reinforced composite material that
12、 is lighter than aluminum for the sameU U 4 /U/U. “Composites wouldU U 5 /U /Ualmost all of the airplane that you could see from the outside,“ Gillette said. Composites are well regarded among aeronautical engineers and have been inU U 6 /U /Uuse since the 1970s. Each generation of planes has more c
13、omposites, and GilletteU U 7 /U /Uthat about 10 per cent of BoeingsU U 8 /U /Ucivil aircraft, the early-1990s 777, is builtU U 9 /U/Uthe material.U U 10 /U/Ustill only a proposal, the Sonic Cruiser hasU U 11 /U /Uthe interest of many airlines, which expressed unusual enthusiasm for the aircraftU U 1
14、2 /U/Uthe September 11 attacks forced most of them to scale back operations. When BoeingU U 13 /U/Uthe Sonic Cruiser last year it said the plane might enter serviceU U 14 /U/U2006 and 2008. Gillette said theU U 15 /U /Udate now is 2008, by which time the market and technology are expected to have de
15、velopedU U 16 /U/UWind-tunnel testsU U 17 /U /Uthe companys computer calculations of optimal cruising speed for the plane at 95 to 98 per. cent of the speed of sound. Going faster than sound would use too much fuel andU U 18 /U /UgreatU U 19 /U /Uon the aircrafts engines. Gillette said the Sonic Cru
16、iserU U 20 /U/Ube offered as a family of aircraft with 200 to 250 seats and a range of 6,500 to 9,000 nautical miles (12,000 to 16,700 kilometers).（分数：20.00）(1). A. proficiency B. efficiency C. affection D. effective（分数：1.00）A.B.C.D.(2). A. latest B. new C. current D. available（分数：1.00）A.B.C.D.(3).
17、A. construction B. structure C. infrastructure D. constitution（分数：1.00）A.B.C.D.(4). A. power B. fight C. tension D. strength（分数：1.00）A.B.C.D.(5). A. constitute B. include C. compose D. consist（分数：1.00）A.B.C.D.(6). A. contagious B. infectious C. publicizing D. widespread（分数：1.00）A.B.C.D.(7). A. noted
18、 B. noticed C. recorded D. written（分数：1.00）A.B.C.D.(8). A. latest B. earliest C. newest D. oldest（分数：1.00）A.B.C.D.(9). A. in B. with C. of D. by（分数：1.00）A.B.C.D.(10). A. Despite B. However C. Nevertheless D. Although（分数：1.00）A.B.C.D.(11). A. arrested B. captured C. held D. draw（分数：1.00）A.B.C.D.(12).
19、 A. before B. after C. when D. unless（分数：1.00）A.B.C.D.(13). A. discovered B. expose C. unveiled D. exhibit（分数：1.00）A.B.C.D.(14). A. among B. from C. before D. between（分数：1.00）A.B.C.D.(15). A. aim B. target C. destine D. ending（分数：1.00）A.B.C.D.(16). A. efficient B. effective C. sufficiently D. ample（
20、分数：1.00）A.B.C.D.(17). A. confirm B. affirmed C. assure D. promis（分数：1.00）A.B.C.D.(18). A. lead B. cause C. result D. made（分数：1.00）A.B.C.D.(19). A. pressures B. depression C. stress D. anxiety（分数：1.00）A.B.C.D.(20). A. might B. can C. must D. will（分数：1.00）A.B.C.D.六、BSection Readi(总题数：0，分数：0.00)七、BPart
21、 A/B(总题数：0，分数：0.00)八、BPassage 1/B(总题数：1，分数：5.00)We sometimes think humans are uniquely vulnerable to anxiety, but stress seems to affect the immune defenses of lower animals too. In one experiment, for example, behavioral immunologist Mark Laudenslager, at the University of Denver, gave mild electri
22、c shocks to 24 rats. Half the animals could switch off the current by turning a wheel in their enclosure, while the other half could not. The rats in the two groups were paired so that each time one rat turned the wheel it protected both itself and its helpless partner from the shock. Laudenslager f
23、ound that the immune response was depressed below normal in the helpless rats but not in those that could turn off the electricity. What he has demonstrated, he believes, is that lack of control over an event, not the experience itself, is what weakens the immune system.Other researchers agree. Jay
24、Weiss, a psychologist at Duke University School of Medicine, has shown that animals who are allowed to control unpleasant stimuli don t develop sleep disturbances or changes in brain chemistry typical of stressed rats. But if the animals are confronted with situations they have no control over, they
25、 later behave passively when faced with experiences they can control. Such findings reinforce psychologists suspicions that the experience or perception of helplessness is one of the most harmful factors in depression.One of the most startling examples of how the mind can alter the immune response w
26、as discovered by chance. In 1975 psychologist Robert Ader at the University of Rochester School of Medicine conditioned mice to avoid saccharin by simultaneously feeding them the sweetener and injecting them with a drug that while suppressing their immune systems caused stomach upsets. Associating t
27、he saccharin with the stomach pains, the mice quickly learned to avoid the sweetener. In order to extinguish this dislike for the sweetener, Ader re-exposed the animals to saccharin, this time without the drug, and was astonished to find that those mice that had received the highest amounts of sweet
28、ener during their earlier conditioning died. He could only speculate that he had so successfully conditioned the rats that saccharin alone now served to weaken their immune systems enough to kill them.（分数：5.00）(1).Laudenslager s experiment showed that the immune system of those rats who could turn o
29、ff the electricity _ . A. was strengthened B. was not affected C. was altered D. was weakened（分数：1.00）A.B.C.D.(2).According to the passage, the experience of helplessness causes rats to _ . A. try to control unpleasant stimuli B. turn off the electricity C. behave passively in controllable situation
30、s D. become abnormally suspicious（分数：1.00）A.B.C.D.(3).The reason why the mice in Ader s experiment avoided saccharin was that _ . A. they disliked its taste B. it affected their immune systems C. it led to stomach pains D. they associated it with stomach（分数：1.00）A.B.C.D.(4).The passage tells us that
31、 the most probable reason for the death of the mice in Ader s experiment was that _ . A. they had been weakened psychologically by the saccharin B. the sweetener was poisonous to them C. their immune systems had been altered by the mind D. they had taken too much sweetener during earlier conditionin
32、g（分数：1.00）A.B.C.D.(5).It can be concluded from the passage that the immune systems of animals _ . A. can be weakened by conditioning B. can be suppressed by drug injections C. can be affected by frequent doses of saccharin D. can be altered by electric shocks（分数：1.00）A.B.C.D.九、BPassage 2/B(总题数：1，分数：
33、5.00)What is lean production? Perhaps the best way to describe this innovative production system is to contrast it with craft production and mass production, the two other methods humans have devised to make things.The craft producer uses highly skilled workers and simple but flexible tools to make
34、exactly what the consumer asks for one item at a time. Custom furniture, works of decorative art, and a few exotic cars provide current-day examples. We all love the idea of craft method as automobiles once were exclusively cost too much for most of us to afford. So mass production was developed at
35、the beginning of the twentieth century as an alternative.The mass-producer uses narrowly skilled professionals to design products made by unskilled or semiskilled workers tending expensive, single purpose machines. These churn out standardized products in very high volume. Because the machinery cost
36、s so much and it is so intolerant of disruption, the mass-producer adds many buffers - extra supplies, extra workers, and extra space to assure smooth production. Because changing over to a new product costs even more, the mass-producer keeps standard designs in production for as long as possible. T
37、he result: the consumer gets lower costs but at the expense of variety and by means of work methods that most employees find boring and dispiriting.The lean producer, by contrast, combines the advantages of craft and mass production, while avoiding the high cost of the former and the rigidity of the
38、 latter.Toward this end, lean producers employ teams of multiskilled workers at levels of the organization and use highly flexible, increasingly automated machines to produce volumes of products in enormous variety.Lean production is “lean“ because it uses less of everything compared with mass produ
39、ction, half the human effort in the factory, half the manufacturing space, half the investment in tools, half the engineering hours to develop a new product in half the time. Also, it requires keeping far less than half the needed inventory on site, results in much fewer defects, and produces a grea
40、ter and ever growing variety products.（分数：5.00）(1).About the craft production, which of the following statements is NOT TRUE? A. It used highly skilled workers. B. It produced expensive goods. C. It was developed at the beginning of the twentieth century. D. It used flexible machines to make what th
41、e buyer asked for. （分数：1.00）A.B.C.D.(2).Which of the following is made by craft production? A. Colored pencils. B. Exotic sports car. C. Notebooks. D. Wooden basins. （分数：1.00）A.B.C.D.(3).Why mass production was developed as an alternative? A. Only single purpose machines were needed. B. It could red
42、uce the cost of production. C. It produced new products very often. D. It produced standardized products in high volume. （分数：1.00）A.B.C.D.(4).What are the advantages of lean production? A. Fewer detects are produced. B. It avoids the high cost of craft production. C. It produces products in enormous
43、 variety. D. All of the above. （分数：1.00）A.B.C.D.(5).Why is lean production “lean“? A. It employs multiskilled workers B. It uses automated machines. C. It meets consumers needs. D. It uses less of everything compared with mass production.（分数：1.00）A.B.C.D.十、BPassage 3/B(总题数：1，分数：5.00)Society was fasc
44、inated by science and things scientific in the nineteenth century. Great breakthroughs in engineering, the use of steam power, and electricity were there for all to see, enjoy, and suffer. Science was fashionable and it is not surprising that, during this great period of industrial development, scie
45、ntific methods should be applied to the activities of man, particularly to those involved in the processes of production. Towards the end of the nineteenth century, international competition began to make itself felt. The three industrial giants of the day, Germany, America, and Great Britain, began to find that there was a limit to the purchasing power of the previously apparently inexhaustible markets. Science a
