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四六级考试
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四六级考试六级模拟试题(2018/7/21)
1、2、3、4、5题:Television was not invented by any one person. Nor did it spring into being overnight. It evolved gradually, over a long period, from the ideas of many people -- each one building on the work of their predecessors. The process began in 1873, when it was accidentally discovered that the electrical resistance of the element selenium varied in proportion to the intensity of the light shining on it. Scientists quickly recognized that this provided a way of transforming light variations into electrical signals. Almost immediately a number of schemes were proposed for sending pictures by wire(it was, of course, before radio). 
One of the earliest of these schemes was patterned on the human eye. Suggested by G. R. Carey in 1875, it envisioned a mosaic of selenium calls on which the picture to be transmitted would be focused by a lens system. At the receiving end there would be a similarly arranged mosaic made up of electric lights. Each selenium cell would be connected by an individual wire to the similarly placed light in the receiving mosaic. Light falling on the selenium cell would reproduce the original picture, had the necessary amplifiers and the right kind of lights been availablr, this system would have workrd. But it also would have required an imoractical number of connecting wires. Carey recognized this and in a second proposed to “scan” the cells-transmitting the signal from each cell to its associated light, in turn, over a single wire. If this were done fast enough, the retentive power of the eye would cause the resultant image to be seen as a complete picture.
41. Which of the following is the best title for the passage?
A. Television in the Electronic Era
B. First Steps in the Invention of Television
C. The Art of Television
D. Harmful Effects of Television Viewing
42. In line 1, the word “being” could best be replaced by _____.
A. place
B. creature
C. subsistence
D. existence
43. An important discovery in earlyteleviosion was the electrical resistance of _____.
A. mosaics
B. the human eye
C. lenses
D. the element selenium
44. In 1875, Carey suggested that the human eye envisioned a mosaic of selenium cells on which the picture to be transmitted would be focused by ______.
A. wire
B. electric lights
C. a lens system
D. amplifiers
45. Following are the reasons why the first scheme for television was abandoned except _____.
A. he lacks an effective assistant
B. the necessary amplifers were unavailable
C. the proper lights were unavailable
D. the number of connecting wires is impractical
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6题:Whentwopeoplefeelthesamewayabouteachother,theirfeelingare().
A.liable
B.visible
C.mutual
D.typical
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7题:Therisingcrimerateis____majorconcernof_____society.()
A.the;the
B.a;/
C.a;the
D./;the
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8题:Studentsshould()themselvesanumberofrealistictargets.
A.get
B.aim
C.set
D.take
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9、10、11、12、13题:Heroin addictions today is found chiefly among young men of minority groups in ghetto(犹太人区)areas.Of the more than 60,000 known addicts,more than half live in New York State.Most of them live in New York City.Recent figures show that more than half of the addicts are under 30 years of age.
Narcotic addiction in the United States is not limted to heroin users.Some middle-aged and older people who take narcotic drugs regularly to relieve pain can also become addicted.So do some people who can get drugs easily,such as doctors,nurses,and pharmacists.Studies show that this type of addict has personality and emotional problems very similar to those of other regular narcotic users.
Many addicts admit that getting a continued supply is the main object of their lives.An addict's concentration on getting drugs often prevents continuing an education or working at a job.His health is often poor.He may be sick one day from
the effects of withdrawal and sick the next day from an overdose.Statistics show that an addict's life span may be shortened by 15 to 20 years.The addict is usually in trouble with the family and almost always in trouble with the law.
Some studies suggest that many of the known narcotic addicts had some trouble with the law before they became addicted.Once addicted,they may become even more involved with crime because it costs so much to support the heroin habit.
Most authorities agree that the addict's involvement with crime is not a direct
effect of the drug itself.Turning to crime is usually the only way to get that much money.The addicts' crimes are nearly always thefts or other crimes againstproperty.
Federal penalties for illegal narcotics usage were established under the Harris
on Act of 1914.The Act provides that illegal possession of narcotics is punishable by fines and/or imprisonment.Sentences can range from 2 to 10 years for the first offense,5 to 20 years for the second,and 10 to 20 years for further offenses.
Illegal sale of narcotics can mean a fine of $20,000 and a sentence from 20 to
40 years for later offenses.A person who sells narcotics to someone under 18 is refused parole and probation,even for the first offense.If the drug is heroin,he
can be sentenced to life imprisonment or to death.
21. What is the topic of this passage?
?  How to cure a drug addict.
B.Heroin and narcotic.
C. The harm of the drugs and the antidrug measures taken by the government. 
D.The American laws. 
22. An addict cannot continue his eduction or work at a job,because of____
A.his concentration on getting drugs
B.his personality
C.his emotional problems
D.his stortage of money 
23. According to the author,how can the addicts get the money for drugs?
A.Borrow from their families. B.By hard working.
C.In an illegal way. D.The author doesn't mention it. 
24. According to the author,who can get narcotic easily?
A.Government men. B.Medical workers.
C.The minorities. D.The Jews. 
25. A person who sell heroin to a kid can be
?  fined $20,000.
B. sentenced to 5 to 20 years in prison.
C. sentenced to 20 to 40 years in prison.
D. sentenced to death. 
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14、15、16、17、18题:Questions 36 to 40 are based on the following passage:
Every day,thousands of managers,bankers,sales executives,lawyers,accountants,and
other professionals are driven to anger and despair by the hard realities of the changing world of work.The oncesolid foundation for millions of middleclass families—the corporate career—is in shambles.The Organization Man of the 1950s and 1960s is being replaced by the migrant manager and freelance professional of the 1990s.
The pain of change is all around us.Corporations are rushing to cut costs and downsize before year end.They want to take their lumps in 1991,in preparation for a stronger recovery in 1992.That means an unusual powerful wave of layoffs will sweep through the U.S. during the last quarter of 1991.Already,the drumbeat of bad news is growing louder.
Whitecollar workers will join the growing ranks of oncesecure employees who are finding themselves on the outside—alone,afraid,and angry.Who doesn ' t have a brother or a sister,a parent or a friend who has lost a job recently?The economic recovery will ease the pain,but it won't stop it.Forces of fierce global competition and industrial consolidation are compelling corporations to cut entire layers of middle managers and whole categories of professional staff.Few companies can hide from the intense pressure of international competition anymore.
36. The changing world of work is making American managers and professionals__. 
A.helpless B.desperate C.angry D.both B and C 
37. The corporate career is the foundation for
A.bankers B.lawyers and accountants
C.all top managers D.millions of middleclass families 
38. In order to get a stronger recovery,corporations are____.
A.reducing their sizes B.cutting costs
C.laying off employees D.all above 
39. Whitecollar workers will be_____.
A.on the inside B.on the outside
C.afraid and angry D.both B and C 
40. American corporations are_____.
A.free from international competition.
B.immune to industrial consolidation.
C.under the intense pressure of international competition.
D.stopping the pain of industrial consolidation. 
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19题:"Weretheremanypeoplewaitinginline?"
"Yes,Isaw()."
A.quiteafew
B.quitemuch
C.quitemany
D.quitesome
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20题:Hardlyadaygoesby()Iwritetomyfamily.
A.when
B.since
C.but
D.before
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21、22、23、24、25题:The modern sailing ship was developed by a man who never went to sea.
He was Prince Henry of Portugal,the younger son of the Partuguese king and an English princess.
Prince Henry lived in the fifteenth century.As a boy he became devoted to the sea,and he dedicated himself to improving the design of ships and the methods of sailing them.In 1416,when he was twentytwo,Henry founded a school for mariners,
to which he invited everyone who could help him—Jewish astronomers,Italian and
Spanish sailors,and Arab mathematicians and map makers who knew to use the crude
compass of the day and could improve it.
Henry's goal was to design and equip vessels that would be capable of making long ocean voyages without having to hug the shore.The caravel carried more sail and was longer and slimmer than any ship then made,yet was tough enough to withstand gales at sea.He also developed the carrack,which was a slower ship,but one that was capable of carrying more cargo.
To Prince Henry the world owes credit for development of craft that made oceanic
exploration possible.He lives in history as Henry the Navigator.
36. Henry the Navigator was a member of the royal family of____.
A.England 
B.Spain 
C.Italy 
D.Portugal 
37. Prince Henry started his school for the purpose of____.
A.helping mariners
B.improving ship design and sailing methods
C.studying astronomy and mathematics
D.improving his own skill as a sailor 
38. The teachers in Prince Henry's school seem to have been____.
A.members of the royal family
B.astronomers,sailors and map makers
C.shipbuilders
D.All of the above 
39. Prince Henry's goal was to design vessels that could____.
A.make long deepsea voyages
B.travel faster than those in use at that time
C.explore the coastline of Portugal
D.carry larger crews and more cargo than existing one 
40. The best title for this passage is
A.The First Modern Sailing Vessels
B.The Mariner Prince
C.Prince Henry's Role in History
D.The First School for Sailors 
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26题:The boy was injured when a firework()in his face.
A.went out
B.went off
C.went round
D.went up
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27题:Theyareproduced().
A.10morepianosthismonththanlastmonth
B.10pianosmorethismonththanlastmonth
C.10pianosthismonthasmanyaslastmonth
D.10asmanypianosthismonthaslastmonth
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28、29、30、31、32题:Disagreements among economists are legendary, but not on the issue of free trade. A recent survey of prominent economists-both conservative and liberal-concluded that "an economist who argues for restricting international trade is almost as common today as a physician who favors leeching."
Why the consensus? International free trade, economists agree, makes possible higher standards of living all over the globe.
The case for free trade rests largely on this principle: as long as trade is voluntary, both partners benefit; otherwise they wouldn't trade. The buyer of a shirt, for example, values the shirt more than the money spent, while the seller values the money more. Both are better off because of the sale. Moreover, it doesn't matter whether the shirt salesman is from the United States or Hong Kong or anywhere else).
The vast majority of American manufactures face international competition. This competition forces companies to improve quality and cut costs. By contrast, protectionism encourages monopoly, lower quality and higher prices. Americans pay an enormous price for protectionism -- over '60 billion a year, or ' 1000 for a family of four. Thanks to protectionism, for example, American consumers pay twice the world price for sugar.
Free trade also makes the world economy more efficient, by allowing nations to capitalize on their strengths. The United States has an advantage in food production, for instance, while Saudi Arabia has an advantage in oil. The Saudis could undertake massive irrigation to become self-sufficient in food, but it is more economical for them to sell oil and purchase food from us. Similarly, we could become self-sufficient in petroleum by squeezing more out of oil sale. But it is much less costly to buy some of our oil from Saudi Arabia. Trade between our two countries improves the standard of living in both.
Protectionism is both wasteful and unjust. It taxes most heavily on the people who can least afford it. Thus, tariffs that raise the price of shoes burden the poor more than the rich. Despite the powerful case for free trade, the United States and the rest of the world have always been protectionist to some degree. This is because free trade benefits the general public, while protectionism benefits special-interest groups, which are better organized, better financed and more informed. To make matters worse, much of what we hear on this issue is misinformation spread by the special interests themselves.
31. The economists _______.
A. disagree whether to restrict free trade or not
B. agree on free trade
C. agree on the restriction if internal trade
D. hold different arguments because to their different interests
32. The two parties in a free trade ________.
A. do not care at all
B. care for different things
C. care for the things being traded
D. care for the same things
33. What is the author's attitude toward protectionism denoted from the 5th paragraph?
A. Sincere
B. Appreciative
C. Grateful
D. Ironic
34. Why has protectionism always been exercised if it is wasteful and unjust? Because ________.
A. it helps to establish national industry of one's own
B. it can achieve an independent economy
C. it is favored by general public
D. it benefits some privileged few
35. According to the free trade principle, the author suggests that ______.
A. U.S. explore its oil shale
B. Saudi Arabia build its own industry
C. Saudi Arabia import food from U.S.
D. U.S. becomes more self-sufficient in food
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33题: If you can prove to the court that Johnson has()robery,he will be found guilty.
A.created
B.made
C.committed
D.caused
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34题:Some of the most, important problems in physics () their success to these mathematics systems.
A. oblige
B. devote
C. contribute
D. attribute
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35题:You ()this exercise in written form. I'll give you the key.
A. don't need doing
B. needn't doing
C. don't need to do
D. needn't to do

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36题:Childrendon'thavetocrossbusystreetswhicharefullof()
A.circulation
B.traffic
C.movement
D.transportation
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37题:Thetasteofthefoodwasso()thatitwashardlynoticeable.
A.superior
B.prime
C.topic
D.subtle
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38题:Unlike science,progress in technology must be measured in terms of the human factor.Technology must be our slave and().
A.not the reverse
B.not the version
C.not the same
D.not the prejudice
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39题:How son will be () robots become so intelligent that they will be able to do jobs which at the moment only human beings can do?
A. before
B. that
C. when
D. since
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40题:Awomenhastobe()amantogohalfasfar
A.twiceasgoodas
B.astwicegoodas
C.twicegoodas
D.twicesogoodas
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