1、公共英语(四级)20 及答案解析(总分：11.99，做题时间：120 分钟)一、Section I Listening(总题数：1，分数：1.00)The man says they dont have any proper conversation in his family because they spend too much time watching 1.（分数：1.00）填空项 1:_二、PART B(总题数：1，分数：1.00)(1).The people most likely to get hooked in Internet are_.（分数：0.20）_(2).Whats
2、 the direct harm Internet will do to you?（分数：0.20）_(3).Whats the most serious effect the Internet will have on your character?（分数：0.20）_(4).The best way to avoid getting hooked in Internet is_.（分数：0.20）_(5).According to the expert, the best place to put the computer is_.（分数：0.20）_三、PART C Direction(
3、总题数：3，分数：3.00)(1).Why did northern European people come to settle down in the United States?（分数：0.25）A.They had lost their jobs as a result of the Industrial Revolution.B.They had been suffering from political and religious oppression.C.They wanted to flee from the widespread famine in Northern Euro
4、pe.D.They wanted to make a fortune there by starting their own businesses.(2).What did the labor unions worry about?（分数：0.25）A.They might lose control of their members because of the increase in immigration.B.Their members might find it difficult to get along with the newcomers.C.The working conditi
5、on of their members might deteriorate.D.Their members might lose their jobs to the newcomers.(3).What was the purpose of the immigration law passed in the 1920s?（分数：0.25）A.To impose restrictions on further immigration.B.To improve the working conditions of immigrants.C.To set a minimum wage level fo
6、r new immigrants.D.To put requirements on languages for newcomers.(4).What do we know from the passage about Asian immigrants?（分数：0.25）A.They were looked down upon by European immigrants.B.They had a hard time seeking equal job opportunities.C.They worked very hard to earn a decent living.D.They str
7、ongly opposed continued immigration.(1).Why cant the library issue library cards to everyone who applies?（分数：0.33）A.Because it takes too long to process all the applications.B.Because it is a library for special purpose.C.Because its resources are limited.D.Because there is a shortage of staff.(2).W
8、hat will the library do if a reader fails to renew the video when it is due?（分数：0.33）A.Discard his application form.B.Forbid him to borrow any items.C.Ask him to apply again.D.Cancel his video card.(3).For how long can a reader keep the book before he renews it?（分数：0.33）A.One week.B.One month.C.Two
9、weeks.D.Two months.(1).Why did the pilot throw a soda bottle out of his plane window?（分数：0.25）A.Because the bottle was empty and useless.B.Because he wanted to lighten the load of his small plane.C.Because the bottle might be useful to the native Africans.D.Because he wanted to amuse the local tribe
10、s people.(2).What did the local people think the soda bottle was?（分数：0.25）A.A message from the outside world.B.A warning from the gods.C.A symbol of misfortune.D.A gift from the gods.(3).What is the main idea of the story?（分数：0.25）A.The local Africans are peace-loving people.B.Soda bottles are very
11、precious in some remote areas.C.A trivial thing may sometimes bring about undesirable consequences.D.Caution must be taken in introducing new technology.(4).What do we know about the local people in the story?（分数：0.25）A.They thought that the gods were crazy.B.They were isolated from the outside worl
12、d.C.They enjoyed living in the peaceful desert.D.They worshipped the gods all the more after the incident.四、Section II Use of E(总题数：1，分数：1.00)During recent years we have heard much about “race“ : how this race does certain things and that race believes certain things and so on. Yet, the 【B1】 phenome
13、non of race consists of a few surface indications. We judge race usually 【B2】 the coloring of the skin: a white race, a brown race, a yellow race and a black race. But 【B3】 you were to remove the skin you could not 【B4】 anything about the race to which the individual belonged. There is 【B5】 in physi
14、cal structure, the brain or the internal organs to 【B6】 a difference. There are four types of blood. 【B7】 types are found in every race, and no type is distinct to any race. Human brains are the 【B8】 No scientists could examine a brain and tell you the race to which the individual belonged. Brains w
15、ill 【B9】 in size, but this occurs within every race. 【B10】 does size have anything to do with intelligence. The largest brain 【B11】 examined belonged to a person of weak 【B12】 On the other hand, some of our most distinguished people have had 【B13】 brains. Mental tests which are reasonably 【B14】 show
16、 no differences in intelligence between races. High and low test results both can be recorded by different members of any race. 【B15】 equal educational advantages, there will be no difference in average standings, either on account of race or geographical location. Individuals of every race 【B16】 ci
17、vilization to go backward or forward. Training and education can change the response of a group of people, 【B17】 enable them to behave in a 【B18】 way. The behavior and ideals of people change according to circumstances, but they can always go back or go on to something new 【B19】 is better and higher
18、 than anything 【B20】 the past. （分数：1.00）A.completeB.fullC.totalD.wholeA.inB.fromC.atD.onA.sinceB.ifC.asD.whileA.speakB.talkC.tellD.mentionA.somethingB.everythingC.nothingD.anythingA.displayB.indicateC.demonstrateD.appearA.AllB.MostC.NoD.SomeA.sameB.identicalC.similarD.alikeA.remainB.increaseC.decrea
19、seD.varyA.OnlyB.OrC.NorD.SoA.everB.thenC.neverD.onceA.healthB.bodyC.mindD.thoughtA.bigB.smallC.minorD.majorA.trueB.exactC.certainD.accurateA.ProvidedB.ConcerningC.GivenD.FollowingA.makeB.causeC.moveD.turnA.andB.butC.thoughD.soA.ordinaryB.peculiarC.usualD.commonA.thatB.whatC.whicheverD.whateverA.forB
20、.toC.withinD.in五、Section III Reading(总题数：4，分数：4.00)When we worry about who might be spying on our private lives, we usually think about the Federal agents. But the private sector outdoes the government every time. Its Linda Tripp, not the FBI, who is facing charges under Marylands laws against secre
21、t telephone taping. Its our banks, not the Internal Revenue Service (IRS) , that pass our private financial data to telemarketing firms. Consumer activists are pressing Congress for better privacy laws without much result so far. The legislators lean toward letting business people track our financia
22、l habits virtually at will. As an example of whats going on, consider U. S. Bancorp, which was recently sued for deceptive practices by the state of Minnesota. According to the lawsuit, the bank supplied a telemarketer called Member-Works with sensitive customer data such as names, phone numbers, ba
23、nk-accounts and credit-card numbers, Social Security numbers, account balances and credit limits. With these customer lists in hand, Member-Works started dialing for dollarsselling dental plans, videogames, computer software and other products and services. Customers who accepted a “free trial offer
24、“ had 50 days to cancel. If the deadline passed, they were charged automatically through their bank or credit-card accounts. U. S. Bancorp collected a share of the revenues. Customers were doubly deceived, the lawsuit claims. They didnt know that the bank was giving account numbers to Member-Works.
25、And if customers asked, they were led to think the answer was no. The state sued Member-Works separately for deceptive selling. The company defends that it did anything wrong. For its part, U. S. Bancorp settled without admitting any mistakes. But it agreed to stop exposing its customers to nonfinan
26、cial products sold by outside firms. A few top banks decided to do the same. Many other banks will still do business with Member-Works and similar firms. And banks will still be mining data from your account in order to sell you financial products, including things of little value, such as credit in
27、surance and credit-card protection plans. You have almost no protection from businesses that use your personal accounts for profit. For example, no federal law shields “transaction and experience“ informationmainly the details of your bank and credit-card accounts. Social Security numbers are for sa
28、le by private firms. Theyve generally agreed not to sell to the public. But to businesses, the numbers are an open book. Self-regulation doesnt work. A firm might publish a privacy-protection policy, but who enforces it? Take U. S. Bancorp again. Customers were told, in writing, that “all personal i
29、nformation you supply to us will be considered confidential. “ Then it sold your data to Member-Works. The bank even claims that it doesnt “sell“ your data at all. It merely “shares“ it and reaps a profit. Now you know. （分数：1.00）(1).Contrary to popular belief, the author finds that spying on peoples
30、 privacy_（分数：0.20）A.is mainly carried out by means of secret taping.B.has been intensified with the help of the IRS.C.is practiced exclusively by the FBI.D.is more prevalent in business circles.(2).We know from the passage that_（分数：0.20）A.legislators are acting to pass a law to provide better privac
31、y protection.B.most states are turning a blind eye to the deceptive practices of private businesses.C.the state of Minnesota is considering drawing up laws to protect private information.D.lawmakers are inclined to give a free hand to businesses to inquire into customers buying habits.(3).When the “
32、free trial “ deadline is over, youll be charged without notice for a product or service if_（分数：0.20）A.you fail to cancel it within the specified period.B.you happen to reveal your credit card number.C.you find the product or service unsatisfactory.D.you fail to apply for extension of the deadline.(4
33、).Businesses do not regard information concerning personal bank accounts as private because（分数：0.20）A.its revelation will do no harm to consumers under the current protection policyB.it is considered “transaction and experience“ information unprotected by law.C.it has always been considered an open
34、secret by the general public.D.its sale can be brought under control through self-regulation.(5).We can infer from the passage that_（分数：0.20）A.banks will have to change their ways of doing business.B.privacy protection laws will soon be enforced.C.consumers privacy will continue to be invaded.D.free
35、 trial practice will eventually be banned.Davison knelt down close to the bottom of the basement stairs. He was saved for the moment by the thick fog which covered the street. Could the policemen be sure that he hadnt turned round and run back into the main street? But they werent taking chances. Da
36、vison slowly went down the street as they searched all the doorways. There wasnt a light on in the basement flat behind him. That alone was dangerous. The policemen were coming close but they wouldnt expect to find him in an occupied flat. There was a notice on the door which said “No milk till Mond
37、ay“, he tore it down. He tried the door and found it was double locked. The footsteps came nearer very slowly. They must be searching thoroughly. He knew there was one chance because people were often careless, so he took out a knife, slipped it under the catch of the window and pushed upward until
38、the window slid up. He climbed through quickly and fell on to a bed. He closed the window and turned on the light at once. He heard steps coming towards the front door. On no account must the place seem empty. He looked for an electric point, and quickly connected the radio and turned it on. Then he
39、 opened the door opposite and found himself in the bathroom. Somebody it could only be a policeman rang the doorbell. Luckily he found what he wanted in the bathroom cupboard straightaway a razor, a stick of shaving soap and a towel. He tied the towel over his collar and managed to soap over his nea
40、t beard and the ugly scar on his chin fairly thickened before the bell rang again. Davison moved slowly to the front door and opened it. Two policemen stood outside and one of them had a dirty piece of paper in one hand. “Weve just found this note, “he said. “As it says No milk till Monday, I though
41、t the flat might be empty and the light left on by mistake. “He looked at Davison carefully. （分数：1.00）(1).When Davison was hiding by the stairs, the policemen were（分数：0.20）A.searching the flats.B.running in the street.C.searching for him in the street.D.looking in the doorway.(2).From the first para
42、graph, we know that（分数：0.20）A.the thick fog made it difficult for the policemen to crack down Davison.B.Davison ran so quickly that the policemen couldnt find him in the fog.C.Davison was very tricky, and escaped from the policemen.D.Both B and C.(3).The instant Davison entered the flat, he turned o
43、n the light because（分数：0.20）A.he wondered whether there was someone in it.B.he wanted to examine the flat.C.the policemen might not look in an occupied flat.D.he could observe the policemen.(4).After Davison got into the bathroom, he（分数：0.20）A.turned on the light.B.attempted to hide in it.C.made it
44、look as if he were the owner of the flat.D.recognized that it was a safe place.(5).What led the policemen to search for the flat?（分数：0.20）A.The lightB.That piece of paper thrown away outside the flat.C.The double lock.D.The closed windows.In the last ten years, the Internet has opened up incredible
45、amounts of information to ordinary citizens. But using the Internet can be like walking into a library where the books are all lying on the floor in piles. While tools like Google allow some structured search, much of the data from such searches is outdated or of questionable value. Some web enthusi
46、asts have taken up the task of organizing information through a democratic means that only the Internet allows: an encyclopedia of the people, by the people, and completely free to copy and distribute. This peoples encyclopedia of the Web ( a free site called Wikipedia) has provided a unique solutio
47、n by inviting individuals to participate in the process of rationalizing and updating web content. At the heart of this movement are wikis, web sites that allow users to directly edit any web page with one click of the mouse. Wikipedia (the largest example of these collaborative efforts) is a functi
48、oning, user-contributed online encyclopedia that has become a popular and highly regarded reference in just three years of existence. The goal of Wikipedia was to create an encyclopedia that could be shared and copied freely while encouraging people to change and improve the content. Each and every article has an “ Edit this pag
