1、大学英语六级模拟试卷 365及答案与解析 一、 Part I Writing (30 minutes) 1 Directions: For this part, you are allowed 30 minutes to write a short essay entitled Blog Writing. You should write at least 150 words following the outlines given below: 1. 写博客的好处 ; 2. 写博客存在的问题 ; 3. 你的看法。 二、 Part II Reading Comprehension (Skimm
2、ing and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-4, mark： Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statement contr
3、adicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Keeping the Net Secure On September 11 traditional telephone providers did a heroic job of struggling to restore service. When the World Trade Center towers fell, they severely damaged a
4、 Verizon central office with 350,000 voice lines and 3.5 million data circuits carrying the financial information that is the lifeblood of Wall Street firms. Verizon employees and those of many other telecommunications carders worked night and day, alongside the firemen, the police, and volunteers,
5、at their own recovery job. In about a week they had rerouted some two million data circuits, restored switches, and installed temporary power supplies. The other 1.5 million circuits originated in buildings that no longer exist. In the days after the attack the number of voice calls in the five boro
6、ughs of New York City doubled, from the normal 115 million a day to more than 230 million. For the next six days Verizon waived charges for its pay phones in Manhattan. On a single day following the disaster residents placed some 22,000 local calls free of charge from regular sidewalk pay phones bel
7、ow Canal Street, and Williams Communications switched five million voice calls in the metropolitan area-three times the average daily volume. AT Yahoos PC to Phone calling service increased by 59 percent. The performance of these voice-over-IP services suggests that in only a handful of years most v
8、oice traffic is likely to be carded on the Internet. Why did the Internet work so well in the face of huge volume? Because its “distributed“ technology is inherently robust. “Normal“ phone connections, whether by means of wired line networks or by wireless cellular networks, open a specific circuit,
9、 or channel, connecting the person who is called and the caller. Just as if a superhighway lane were opened for one car only, the circuit remains dedicated to the conversation even if no one is speaking at the moment. If too many circuits are requested at one time, the system blocks calls. In contra
10、st, Internet messages dont travel on designated circuits. Instead, the messages are coded in is and Os, and then disassembled into packets of data. The packets go out from the PC down the phone line and into the maze of interconnected fibers that envelops every metropolitan area of every developed c
11、ountry in the world. Like cars on a superhighway, packets share lanes on the Net. Each packet contains a destination address. As the packet moves into the maze, it encounters a router that selects the next step in the network. If the router senses congestion on one route, it selects another. The AOL
12、 instant-message packets could work their way around the jams and outage of the voice network and find their destinations in seconds. One lesson from September 11 is that in order to maintain an effective communications system in the face of any calamity, we should promote and protect the Internet a
13、s a primary network, encouraging the private sector and using the resources of the public sector to make it faster, more robust, ubiquitous, and better integrated with other media. This policy would be consistent with the Internets original development as an aspect of national security. Not many cre
14、ators of Internet technology or leaders of Internet companies have been seriously interested in world affairs. Indeed, only yesterday many people imagined, naively, that the rise of the medium meant the end of government, the triumph of libertarian visions, and the dawning of a new age of spontaneou
15、s self-organization. In the long run the Nets emphasis on liberty can be fused with the needs of a civil equitable, ordered state. But in the short run we need practical steps to help keep the Internet secure. The worlds citizens, businesses, and governments should come together to take two actions.
16、 First, Internet access should be made truly global. In less developed countries this means expanding communications systems so that more people have exposure to and access to information from the outside world. Obviously, communications technology does not by itself end conflict or convert nations
17、to democracy. But it helps, and those goals are easier to reach with a modem communications system than without one. However our current war against terrorism ends, along the way the United States and its allies will undoubtedly make a variety of economic promises to the Central Asian states whose s
18、upport we need. It would be better to direct aid toward thought-out goals than to grant it slapdash. A $ 10 billion investment fund for communications improvements throughout the developing world, managed by an independent board and funded half by private institutions and half by governments, would
19、be a wise use of our resources. In developed countries universal access means ensuring that businesses and citizens can all get high-speed connections to the Internet, much as they now have universal dial-tone access to the traditional telephone system. The United States has a long history of subsid
20、izing the growth of a democratically available communications system. In keeping with the established universal service policy, business and suburban customers of telephone services are “overcharged“ some $ 30 billion each year in order to subsidize basic telephone rates for rural customers. Diverti
21、ng $ 10 billion of this universal-service funding could eventually make broadband service available on a near universal basis. Consumers could draw on a federal fund for whichever competing service they chose. The fund would pay a high proportion of the total cost for poor and rural users, a low one
22、 or none at all for rich users. Andy Grove, the chairman of Intel, recently called for a similar investment plan. Second, the Internets defenses need to be strengthened. The networks that compose its backbone should be encouraged with strong incentives to develop redundant interconnection points and
23、 diverse paths. The Internets conceptual design makes it inherently resilient, but its physical structure and hardware need to be more secure than they are now. The one or two dozen essential crossroads of the Internet are basically collections of computers in buildings. These are vital nodes of our
24、 national security, and they ought to be as carefully protected as our military installations. The Internet has a rising number of co-location facilities where many fiber cables are aggregated. If any of them goes down, traffic can be interrupted for long periods. This became clear last summer in Ba
25、ltimore, when a train derailment damaged a substantial fiber link and affected the flow of Internet traffic around the globe. Every essential node should have a backup. Internet messages are now carried mainly on fiber-optic systems. These systems should be backed up by microwave and satellite-trans
26、mission systems. The terrorists did not directly target our communications networks, but those networks are an integral part of the democratic capitalism that they did attack. And we can use those networks to help fight back. 2 The data circuits which had been damaged on September 11 were rerouted m
27、ore than a half in about a week. （ A） Y （ B） N （ C） NG 3 There are fewer voice calls in New York in the days after the attack. （ A） Y （ B） N （ C） NG 4 In all coastal cities, cell phone net works could not keep up with demand. （ A） Y （ B） N （ C） NG 5 More than half of Americans now use the Internet.
28、（ A） Y （ B） N （ C） NG 6 Some carriers pushed their voice traffic over the Internet because _. 7 The system blocks calls when _. 8 We should promote and protect the Internet as a primary network in order to _. 9 The second action which should be taken to keep the Internet secure is _. 10 A substantia
29、l fiber link damaged by a train derailment affected _. 11 Fiber-optic system should be backed up by _. Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both t
30、he conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. （ A） She is eager to be accepted by the university. （ B） She is waiting to see if she cou
31、ld get the job from Coles. （ C） She is expecting to see if Cole would lend her some cash. （ D） She has no idea about whether she can afford the university tuition. （ A） Write Daisy a note of apology., （ B） Return Daisys notes in a few days. （ C） Apologize when Daisy is less angry. （ D） Let her talk
32、to Daisy about the situation. （ A） Robert survived the plane crash. （ B） All the passengers were killed in the plane crash. （ C） Robert was killed in the air crash. （ D） Robert is a wonder-working person. （ A） Because she feels very hot in the room. （ B） Because she wants to avoid meeting people. （
33、C） Because she wants to smoke a cigarette outside. （ D） Because she doesnt like the smell of smoke inside. （ A） The graduate students could understand the lecture. （ B） The undergraduate students could understand the lecture. （ C） Both the undergraduate and the graduate students understand the lectu
34、re. （ D） Neither the undergraduate nor the graduate students could understand the lecture. （ A） They both enjoyed watching the game. （ B） People were surprised at their winning the game. （ C） They both felt good about the results of the game. （ D） The man thought the results were beyond their expect
35、ations. （ A） He thinks David is not reliable. （ B） Hes willing to trust David. （ C） He has told his doubts to David. （ D） He thinks David will benefit from this experience. （ A） By going on a diet. （ B） By doing physical exercise. （ C） By having fewer meals. （ D） By eating fruit and vegetables. （ A）
36、 They hate each other. （ B） They cherish each other. （ C） The boy care about the girl very much. （ D） The boy jokes the girl. （ A） Red. （ B） Black. （ C） White. （ D） Not all of the above. （ A） The girls friend. （ B） Their another sister. （ C） The boys dream girl. （ D） A pop star. （ A） Its crowded wit
37、h people. （ B） Its full of computers. （ C） Lunch is being served there. （ D） Only few people in there. （ A） Trying to telephone someone. （ B） Attending a concert. （ C） Waiting in line. （ D） Canceling reservations. （ A） Before breakfast. （ B） Late morning. （ C） Mid-afternoon. （ D） Late evening. （ A）
38、Talking about if the woman waited in line. （ B） Exchanging the telephone numbers. （ C） Saying hello to each other. （ D） Talking about their children. Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and
39、the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D. （ A） Its near the Mexico City. （ B） Its in Guatemala. （ C） Its stretched from the plains of central Mexico to the mountains of Guatemala. （ D） Its in America
40、. （ A） It has become a clumsy giant. （ B） The city has suffered from long-time famine. （ C） There was epidemic disease that time. （ D） It has been set on fire. （ A） Teotihuacan, once the home of 200,000 people, was the center of a large empire. （ B） Many archaeologists are fascinated by the ruins of
41、 a pre-Columbia city called Teotihuacan. （ C） Teotihuacan, once a major metropolitan area, was destroyed by an invasion. （ D） A still unsolved mystery is why the people of Teotihuacan suddenly abandoned their city. （ A） For hunting. （ B） For protecting himself. （ C） For stimulation. （ D） For protect
42、ing the country. （ A） Males are arrested about four times more than females. （ B） According to the survey, 61% of all men feel unsafe in their own neighborhoods at night. （ C） More women arrested than men in juvenile runaway cases and prostitution. （ D） The police and court are required to be more k
43、ind to the female offenders. （ A） Rape. （ B） Burglary. （ C） Aggravated assault. （ D） Smuggling. （ A） Because people might have to migrate there someday. （ B） Because it is very much like the earth. （ C） Because it is easier to explore than other planets. （ D） Because its atmosphere is different from
44、 that of the earth. （ A） Its chemical elements must be studied. （ B） Its temperature must be lowered. （ C） Big spaceships must be built. （ D） Its atmosphere must be changed. （ A） It influences the surface temperature of Mars. （ B） It protects living beings from harmful rays. （ C） It keeps a planet f
45、rom overheating. （ D） It is the main component of the air people breathe. （ A） Man will probably be able to live there in 200 years. （ B） Scientists are rather pessimistic about it. （ C） Man will probably be able to live there in 100,000 years time. （ D） Scientists are optimistic about overcoming th
46、e difficulties soon. Section C Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43
47、with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the 36 With the recent rapid advances in information technologies,【 B1】 _ researcher
48、s at every level and in every【 B2】 _ have developed new methods, tools, and【 B3】 _ for instruction. As the Internet, e-mail and multimedia have already become parts of most college students lives nowadays;【 B4】 _ these new information tech nologies to engineering and science instruction is a great【
49、B5】 _ for teachers and researchers. Although the effectiveness and【 B6】 _ of new information technologies on education are not yet well【 B7】 _ and documented the promises and【 B8】 _ they hold for improving education are exciting For example,【 B9】 _ Students at home and in work places can have access to learning material at any time.【 B10】 _ . Students can work on learning materials at their own pace and discuss them with other people when they have qu
