1、公共英语四级-90 及答案解析(总分：100.00，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)You will hear a monologue about a girls pursuit. While you listen, fill out the table with the information you have heard. Some of the information has been given to you in the table. Write only 1 word in ea
2、ch numbered box. You will hear the recording twice. You now have 25 seconds to read the ruble below.The pursuit of my ideal the speakers birth place UU 1 /U/Uthe speakers would-be career UU 2 /U/Uthe result of the speakers first application UU 3 /U/UThe rate of the applicants offered positions was l
3、ess thanUU 4 /U/UThe times of the speakers application UU 5 /U/U（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：5.00)You will hear a dialogue. While you listen, complete the sentences and answer the question. Use not more than 3 words for each answer. You will hear the recording twi
4、ce. You now have 25 seconds to read the sentences and the questions below.（分数：5.00）(1).When the man last saw her, the woman was looking for（分数：1.00）填空项 1:_(2).The woman get a new position in（分数：1.00）填空项 1:_(3).The woman was relieved when she（分数：1.00）填空项 1:_(4).The woman was surprised when she knew t
5、he man was（分数：1.00）填空项 1:_(5).Now the man and Andrea have been dating for（分数：1.00）填空项 1:_四、BPart C/B(总题数：3，分数：10.00)You will hear three dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each questi
6、on by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.Questions 1113 are based on the following dialogue about the nuclear power. （分数：3.00）(1).What are the two speakers talking about? A.The benefits of nuclear
7、 weapons. B.The environmental pollution caused by nuclear-powered stations. C.The disadvantages of used fuel. D.The advantages of nuclear-powered stations.（分数：1.00）A.B.C.D.(2).Where is the used fuel disposed of? A.The United Nations Atomic Energy Authority. B.The United Kingdom Atomic Energy Organiz
8、ation. C.The United States Atomic Energy Authority. D.The United Kingdom Atomic Energy Authority.（分数：1.00）A.B.C.D.(3).Which is NOT the advantage of the nuclear stations? A.The nuclear stations are safer than the coal-fired stations. B.The cost of building the nuclear stations is more than that of th
9、e coal-fired stations. C.The cheaper running of the nuclear stations can offset its great construction. D.The nuclear stations are much cleaner than the conventional ones.（分数：1.00）A.B.C.D.Questions 1416 are based on the following passage. （分数：3.00）(1).How does a whale keep itself warm? A.By its thic
10、k layer of fat under its skin. B.By moving frequently in the water. C.By adjusting its blood temperature. D.By taking in hot air.（分数：1.00）A.B.C.D.(2).What do we learn about the blood temperature of a whale? A.Grows colder as the blubber accumulates. B.Remains the same. C.Varies according to the wate
11、r temperature. D.Grows warmer as the whale grows older.（分数：1.00）A.B.C.D.(3).In what way do whales distinguish themselves from other land mammals? A.They have very few hairs on their bodies. B.They bear their young rather than laying eggs. C.Their lungs are full of hot air and water. D.They can walk
12、on their hind legs on land.（分数：1.00）A.B.C.D.Questions 1720 are based on the following monologue. （分数：4.00）(1).What is the occasion for the mans speech? A.Graduation. B.A class reunion. C.The dedication of a new building. D.The groundbreaking ceremony for a pedestrian walkway on campus.（分数：1.00）A.B.C
13、.D.(2).In what aspect does State University remain the same? A.The main campus. B.The student population. C.The age-old ideals. D.The programs of the Division of Continuing Education.（分数：1.00）A.B.C.D.(3).Why was University Tower torn down? A.Because a bell tower was to the built on the site. B.Becau
14、se it was found unsafe. C.Because a parking lot was to be constructed there. D.Because no one wanted to preserve it.（分数：1.00）A.B.C.D.(4).What is the main idea of the mans speech? A.Everything at State University has changed in the past ten years. B.Although the campus looks the same, some things hav
15、e changed at State University. C.In spite of the changes on the campus, the commitments of the State University remain the same. D.Everything has stayed the same at State University during the past ten years.（分数：1.00）A.B.C.D.五、BSection Use o(总题数：1，分数：20.00)Read the following text. Choose the best wo
16、rd(s) for each numbered blank and mark A, B, C or D.Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much has happened U U 1 /U /U. As was discussed before, it was not U U 2 /U /Uthe 19th century that t
17、he newspaper became the dominant pre-electronic U U 3 /U /U, following in the wake of the pamphlet and the book and in the U U 4 /U /Uof the periodical. It was during the same time that the communications revolution U U 5 /U /Uup, beginning with transport, the railways and leading U U 6 /U /Uthrough
18、 the telegraph, the telephone, radio and motion pictures U U 7 /U /Uthe 20th century world of the motor car and the airplane. Not everyone sees that process in U U 8 /U /U. It is important to do so.It is generally recognized, U U 9 /U /U, that the introduction of the computer in the early 20th centu
19、ry, U U 10 /U /Uby the invention of the integrated circuit during the 1960s, radically changed the process, U U 11 /U /Uits impact on the media was not immediately U U 12 /U /U. As time went by, computers became smaller and more powerful, and they became personal too, as well as U U 13 /U /U, with d
20、isplay becoming sharper and storage U U 14 /U /Uincreasing. They were thought of, like people, U U 15 /U /Ugenerations, with the distance between generations much U U 16 /U /U.It was within the computer age that the term information society began to be widely used to describe the U U 17 /U /Uwithin
21、which we now live. The communications revolution has U U 18 /U /Uboth work and leisure and how we think and feel both about place and time, but there have been U U 19 /U /Uviews about its economic, political, social and cultural implications. Benefits have been weighed U U 20 /U /Uharmful outcomes.
22、And generalizations have proved difficult.（分数：20.00）(1). A.between B.before C.since D.later（分数：1.00）A.B.C.D.(2). A.after B.by C.during D.until（分数：1.00）A.B.C.D.(3). A.means B.method C.medium D.measure（分数：1.00）A.B.C.D.(4). A.process B.company C.light D.form（分数：1.00）A.B.C.D.(5). A.gathered B.speeded C.
23、worked D.picked（分数：1.00）A.B.C.D.(6). A.on B.out C.over D.off（分数：1.00）A.B.C.D.(7). A.of B.for C.beyond D.into（分数：1.00）A.B.C.D.(8). A.concept B.dimension C.effect D.perspective（分数：1.00）A.B.C.D.(9). A.indeed B.hence C.however D.therefore（分数：1.00）A.B.C.D.(10). A.brought B.followed C.stimulated D.charact
24、erized（分数：1.00）A.B.C.D.(11). A.unless B.since C.lest D.although（分数：1.00）A.B.C.D.(12). A.apparent B.desirable C.negative D.plausible（分数：1.00）A.B.C.D.(13). A.institutional B.universal C.fundamental D.instrumental（分数：1.00）A.B.C.D.(14). A.ability B.capability C.capacity D.faculty（分数：1.00）A.B.C.D.(15). A
25、.by means of B.in terms of C.with regard to D.in line with（分数：1.00）A.B.C.D.(16). A.deeper B.fewer C.nearer D.smaller（分数：1.00）A.B.C.D.(17). A.context B.range C.scope D.territory（分数：1.00）A.B.C.D.(18). A.regarded B.impressed C.influenced D.effected（分数：1.00）A.B.C.D.(19). A.competitive B.controversial C.
26、distracting D.irrational（分数：1.00）A.B.C.D.(20). A.above B.upon C.against D.with（分数：1.00）A.B.C.D.六、BSection Readi(总题数：0，分数：0.00)七、BPart A/B(总题数：0，分数：0.00)八、BPassage 1/B(总题数：1，分数：5.00)The big identity-theft bust last week was just a taste of whats to come. Heres how to protect your good name.HERES THE
27、SCARY THING about the identity-theft ring that the Feds cracked last week: there was nothing any of its estimated 40,000 victims could have done to prevent it from happening. This was an inside job, according to court documents. A lowly help-desk worker at Teledata Communications, a software firm th
28、at helps banks access credit reports online, allegedly stole passwords for those reports and sold them to a group of 20 thieves at $60 a pop. That allowed the gang to cherry-pick consumers with good credit and apply for all kinds of accounts in their names. Cost to the victims: $3 million and rising
29、.Even scarier is that this, the largest identity-theft bust to date, is just a drop in the bit bucket. More than 700,000 Americans have their credit hijacked every year. Its one of crimes biggest growth markets. A name, address and Social Security numberwhich can often be found on the Webis all anyb
30、ody needs to apply for a bogus line of credit. Credit companies make $1.3 trillion annually and lose less than 2% of that revenue to fraud, so theres little financial incentive for them to make the application process more secure. As it stands now, its up to you to protect your identity.The good new
31、s is that there are plenty of steps you can take. Most credit thieves are opportunists, not well-organized gangs. A lot of them go Dumpster diving for those millions of “pre-approved“ credit-card mailings that go out every day. Others steal wallets and return them, taking only a Social Security numb
32、er. Shredding your junk mail and leaving your Social Security card at home can save a lot of agony later.But the most effective way to keep your identity clean is to check your credit reports once or twice a year. There are three major credit-report outfits: Equifax (at equifax, corn), Trans-Union (
33、) and Experian (). All allow you to order reports online, which is a lot better than wading through voice-mail hell on their 800 lines. Of the three, I found Trans-Unions website to be the cheapest and most comprehensivelaying out state-by-state prices, rights and tips for consumers in easy-to-read
34、fashion.If youre lucky enough to live in Colorado, Georgia, Maryland, Massachusetts, New Jersey or Vermont, you are entitled to one free report a year by law. Otherwise its going to cost $8 to $14 each time. Avoid services that offer to monitor your reports year-round for about $70; thats $10 more t
35、han the going rate among thieves. If you think youre a victim of identity theft, you can ask for fraud alerts to be put on file at each of the three credit-report companies. You can also download a theft-report form at www.consumer.gov/idtheft, which, along with a local police report, should help wh
36、en irate creditors come knocking. Just dont expect justice. That audacious help-desk worker was one of the fewer than 2% of identity thieves who are ever caught.（分数：5.00）(1).What is the trend of credit-theft crime? A.Tightly suppressed. B.More frightening. C.Rapidly increasing. D.loosely controlled.
37、（分数：1.00）A.B.C.D.(2).The expression “inside job“ (Paragraph 2) most probably means A.a crime that is committed by a person working for the victim. B.a crime that should be punished severely. C.a crime that does great harm to the victim. D.a crime that poses a great threat to the society.（分数：1.00）A.B
38、.C.D.(3).The creditors can protect their identity in the following ways except A.destroying your junk mail. B.leaving your Social Security card at home. C.visiting the credit-report website regularly. D.obtaining the free report from the government.（分数：1.00）A.B.C.D.(4).Why is it easy to have credit-
39、theft? A.More people are using credit service. B.The application program is not safe enough. C.Creditors usually disclose their identity. D.Creditors are not careful about their identity.（分数：1.00）A.B.C.D.(5).What is the best title of the text? A.The danger of credit-theft B.The loss of the creditors
40、 C.How to protect your good name D.Why the creditors lose their identity（分数：1.00）A.B.C.D.九、BPassage 2/B(总题数：1，分数：5.00)In the 1950s, the pioneers of artificial intelligence (AI) predicted that, by the end of this century, computers would be conversing with us at work and robots would be performing ou
41、r housework. But as useful as computers are, theyre nowhere close to achieving anything remotely resembling these early aspirations for human like behavior. Never mind something as complex as conversation: the most powerful computers struggle to reliably recognize the shape of an object, the most el
42、ementary of tasks for a ten-month-old kid.A growing group of AI researchers think they know where the field went wrong. The problem, the scientists say, is that AI has been trying to separate the highest, most abstract levels of thought, like language and mathematics, and to duplicate them with logi
43、cal, step-by-step programs. A new movement in AI, on the other hand, takes a closer look at the more roundabout way in which naturally came up with intelligence. Many of these researchers study evolution and natural adaptation instead of formal logic and conventional computer programs. Rather than d
44、igital computers and transistors, some want to work with brain cells and proteins. The results of these early efforts are as promising as they are peculiar, and the new nature-based AI movement is slowly but surely moving to the forefront of the field.Imitating the brains neural (神经的) network is a h
45、uge step in the right direction, says computer scientist and biophysicist Michael Conrad, but it still misses an important aspect of natural intelligence. “People tend to treat the brain as if it were made up of color-coded transistors“, he explains, “but its not simply a clever network of switches.
46、 There are lots of important things going on inside the brain cells themselves.“ Specifically, Conrad believes that many of the brains capabilities stem from the patternrecognition proficiency of the individual molecules that make up each brain cell. The best way to build and artificially intelligent device, he claims, would be to build it around the same sort of molecular skills.Right now, the option that conventional computers and software are fundamentally incapable of matching the processes that take place in the brain remains controv
