公共英语四级(笔试)-48及答案解析.doc

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1、公共英语四级(笔试)-48 及答案解析(总分：99.95，做题时间：90 分钟)一、Section Listening(总题数：0，分数：0.00)二、Part A(总题数：1，分数：5.00)Information about Four Operations of ComputerComputer can perform four general operations. They are input, process, output, and 1 All computer processing requires 2 In the processing phase, the computer

2、manipulates the data to create 3 During the output operation, the information that has been created is put into some 4 Finally, the output may be stored on a disk for future 5 （分数：5.00）填空项 1:_三、Part B(总题数：1，分数：5.00)The department provides computer facilities for staff and students through 1 In what

3、areas has Professor Martin“s research result been successfully used? 2 Dr. Peterson has focused his research on 3 By what was Dr. Spencer“s project supported? 4 According to the talk what was invented in 1945? 5 （分数：5.00）填空项 1:_四、Part C(总题数：3，分数：10.00)（分数：4.00）(1).News spreads fast because of _.（分数：

4、1.00）A.the changes of the worldB.modern transportationC.a peace agreementD.new technology(2).Which of the following is very important in a disaster area according to the passage?（分数：1.00）A.Latest news.B.New ideas.C.Modern technology.D.Fast communication.(3).Two hundred years ago, news between the co

5、ntinents was carried _.（分数：1.00）A.by landB.by airC.by seaD.by telephone and telegraph(4).Which of the following statements is true?（分数：1.00）A.The world is changing in size.B.The world now seems smaller because of fast communication.C.The distance between England and America has been shortened since

6、the war of 1812.D.The world is actually smaller today.（分数：3.00）(1).In this passage, a “dark“ side means _.（分数：1.00）A.dull problemB.not brightC.a black sideD.disadvantage(2).Which of the following is true according to the passage?（分数：1.00）A.Facing the disadvantages of automobiles, we should give them

7、 up.B.While making use of computers, we have to take measures to get rid of their dark sides.C.We can not make use of computers before their dark sides are removed.D.We can find no way to keep computers from turning against us.(3).In the passage, what does “computer crime“ mean?（分数：1.00）A.Criminals

8、make use of computer shortcomings to do something illegal.B.Computers can be used to track down criminals.C.Computers can be used to break codes.D.Computers may sometimes do something illegal.（分数：3.00）(1).How does the professor think of calling a computer an “electronic brain“?（分数：1.00）A.He thinks t

9、hat it is not accurate.B.He thinks that it is OK.C.He thinks that it is rather fashionable.D.He thinks that it is very proper.(2).When was the first computer built?（分数：1.00）A.1964.B.1946.C.1916.D.1940.(3).Which of the following is true according to the professor?（分数：1.00）A.The computer is absolutely

10、 better than the human brain.B.The computer is better than the human brain in many ways.C.Without a program and human“s instructions, the computer can“t work.D.The computer can program itself.五、Section Reading(总题数：0，分数：0.00)六、Part A(总题数：1，分数：20.00)Information Technology1982 was the year of informati

11、on technology in Great Britain. But what exactly is infotech? 85% of the people polled recently had not a clue what it means, 1 53% of those polled said they thought it sounded 2 important. They were right. It is. So what is it? Well, put simply, it is the “marrying-up“ of products 3 several key ind

12、ustries: computers, telephones, televisions, satellites. It means 4 microelectronics, telecommunication networks, and fibre optics to help produce, store, obtain and send information by 5 of words, numbers, pictures and sound more quickly and efficiently than ever before. The impact infotech is havi

13、ng and is going to have on our lives and work is tremendous. It is already linking the skills of the space industry 6 those of cable television, so programmes can be beamed directly into our homes 7 all over the world. Armies of “steel collar“ workers, the robots, will soon be working in factories d

14、oing the boring, complex and dull jobs which are at present still 8 by man. In some areas the car industry this has already started. Television will also be used to 9 customers from the comfort of their homes by simply ordering 10 the TV screen, payment being made by direct debit of their credit car

15、ds. The automatic booking of tickets will also be done through the 11 screen. Cable television 12 in many countries now gives a choice of dozens of 13 will soon be used to 14 our homes by operating burglar and fire alarms linked to police and fire stations. Computers will run our homes, controlling

16、the heating, air-conditioning and cooking systems while robots will cope with the housework. The friendly 15 will be a thing of the past as the post service and letters disappear with the electronic mail received via viewdata screens.（分数：19.95）七、Part B(总题数：1，分数：15.00)Computers “Will Soon Jump to Our

17、 Every Word“It“s late evening in Munich station and you need a bed for the night. The tourist bureau is closed and there“s no phone in sight. So what“s new? Well, there“s still the latest information system to try out. Projected as an image on a wall in the station is a street map of the city and a

18、set of icons. You point to the hotel icon and then circle with your finger the district you want. A more detailed street map, with flashing spots representing the hotels. You point to one of the spots, and a list gives price and availability of rooms. You book by pointing to the telephone icon. A me

19、ssage on the wall tells you that a car is on its way to pick you up. The fantasy could be a reality within a year or two, says Christopher Maggioni, the leader of a German electronics company. His research team at the company“s laboratory in Munich has already built working prototypes (供试验用的样品). The

20、y remove the need to master trick procedures on the keyboard, and leave little hardware on show for vandals to wreck. “These are the two great advantages,“ Mr. Maggioni says. “The systems are also fine for sterile environments and for clearing the office desktop.“ He sees doctors using gesture recog

21、nition systems in hospital operation theatres where unsterilised equipment is banned. In the office, the clutter of telephones, diaries and address books on a desk could be a thing of the past. When you wanted to make a call, the image of a keypad could be projected on to the pile of papers beside y

22、ou and you would move your fingers over the numbers as you do with a real telephone. Speakers and a microphone would be buried in the furnishings. For around $5,500 the system is also fairly cheap. It consists of a standard video camera and projector, and a computer. For decades, researchers in the

23、US, Japan and Europe have been looking at ways of getting rid of the keyboard and of using gestures, voice and even eye movements to simplify the manner in which humans communicate with computers. A number of companies claim to have built working prototypes of a computer system that recognises head

24、movements. This could be an important advance in the development of 3D television. Researchers now say that they can generate two images from a single screen and use a video camera to track the head to ensure that each image goes to the correct eye. For Mr. Maggioni, the next big advance will be com

25、puters controlled by a combination of gestures and speech. Over the next few months, the company is due to launch a computer for the medical profession that will let doctors input data by talking to the machine, he says.（分数：15.00）(1).Which of the following is NOT the advantage of the new system?（分数：

26、3.00）A.It is good for sterile environment.B.It makes the office look tidy and organised.C.It saves us a lot of energy.D.The need to operate on the keyboard is removed.(2).In the new system at Munich station, which of the following should you do first?（分数：3.00）A.Pointing to the telephone icon.B.Point

27、ing to the hotel icon.C.Pointing to one of the flashing spots.D.Circling the district you want with your finger.(3).Why have researchers of computers been trying to get rid of the keyboard?（分数：3.00）A.Probably because it is too big.B.Probably because computers with keyboards involve tricky procedures

28、.C.Probably because it gives vandals opportunity to destroy the systems.D.Both B and C(4).What would happen to telephones according to Mr. Maggioni?（分数：3.00）A.They would still be kept and used in the office.B.They would disappear from the office.C.They would be destroyed.D.They would be cheaper.(5).

29、Which of the following is NOT true according to the passage?（分数：3.00）A.In the new system, people mainly communicate with computers with gestures, voice and even eye movements.B.According to Mr. Maggioni, the new system is fairly cheap.C.In the new system at Munich station, an image of the street map

30、 is there on the wall.D.The new system is designed by a US electronic group.八、Section Writing(总题数：1，分数：45.00)1.Read the following text(s) and write an essay to1) summarize the main points of the text(s),2) make clear your own viewpoints, and3) justify your stand.In your essay, make full use of the i

31、nformation provided in the text(s). If you use more than three consecutive words from the text(s), use quotation marks(“ “).You should write 160-200 words. Early forms of the paperless office would have concentrated around word processing documents and the ability to create, store and manage their e

32、xistence electronically. However, you were limited in scope as to what you could do to “manage“ these documents. Most of the management revolved around viewing and perhaps sharing it with other users in the organization. There were no automated programs that handled workflow, scanning, tagging and m

33、anagement of these documents effectively. Scanners were too expensive for the average office to acquire based on the return on investment. At the corporate level, there was no direction as to handle workflow and to analyze where paper came from and where it had to go internally and if there was a pr

34、ocess in place, the tools were not mature enough or existing to handle it. In the last few years, technology has finally been catching up to the needs and requirements of the office environment. Scanners that previously cost tens of thousands of dollars now can be acquired for hundreds. Digital prin

35、ters now incorporate high speed scanning and OCR capability, even at the lowest levels. The technology initiative has now been transferred to the IT and MIS departments of corporations as well as law firms. Clearly, the tools necessary to transform paper-full to a paperless office are now widely ava

36、ilable. What then, is stopping the widespread adoption of the concept of the paperless office? Cultural issues are probably one of the largest obstructions to the implementation of the concept of the paperless office. Plainly, people feel comfortable doing what they know how to do best and modifying

37、 their habits requires a focus that makes them feel that they are, in fact, doing things better and more efficiently. Implementing a paperless office environment that introduces processes that are more difficult and technologically challenging than the previous environment is doomed to fail from the

38、 start. （分数：45.00）_公共英语四级(笔试)-48 答案解析(总分：99.95，做题时间：90 分钟)一、Section Listening(总题数：0，分数：0.00)二、Part A(总题数：1，分数：5.00)Information about Four Operations of ComputerComputer can perform four general operations. They are input, process, output, and 1 All computer processing requires 2 In the processing ph

39、ase, the computer manipulates the data to create 3 During the output operation, the information that has been created is put into some 4 Finally, the output may be stored on a disk for future 5 （分数：5.00）填空项 1:_ （正确答案：storage.）解析： storage. 听力原文 Whether small or large, computers can perform four gener

40、al operations. These operations comprise the information processing cycle and are: input, process, output, and storage. These operations describe the procedures that a computer performs to process data into information and store it for future use. All computer processing requires data. Data refers t

41、o the raw facts, including numbers and words, given to a computer during the input operation. In the processing phase, the computer manipulates the data to create information. Information refers to data that has been processed into a form that has meaning and is useful. The production of information

42、 by processing data on a computer is called information processing. During the output operation, the information that has been created is put into some form, such as a printed report, that people can use. The information can also be stored electronically for future use. The people who either use the

43、 computer directly or use the information it provides are called computer users, end users, or sometimes just simply users. The four operations of information processing cycle occured on a personal computer are: (1) The computer user inputs data by pressing the keys on the keyboard. (2) The data is

44、then processed by the unit called the processor. (3) The output, or results, from the processing are displayed on the screen or printed on the printer, providing information to the user. (4) Finally, the output may be stored on a disk for future reference. 解析： data. 解析： information. 解析： form. 解析： re

45、ference. 三、Part B(总题数：1，分数：5.00)The department provides computer facilities for staff and students through 1 In what areas has Professor Martin“s research result been successfully used? 2 Dr. Peterson has focused his research on 3 By what was Dr. Spencer“s project supported? 4 According to the talk

46、what was invented in 1945? 5 （分数：5.00）填空项 1:_ （正确答案：over 200 terminals.）解析： over 200 terminals. 听力原文 M: Could I have your attention please? Could I. everybody? Thank you. I“m David Wilson. Welcome to visit the Department of Computer Science. The department was awarded, as you can see on the wall, th

47、e highest place for research in computer science of all the universities in this country. Currently, a wide range of research activities is going on here. The department has an IBM 4,381 and several SUN systems, which provide the general computer facilities for staff and students through over 200 te

48、rminals. All the computers are linked to the Internet. You won“t have any difficulty communicating with other institutions inside and outside the country. The department also has a comprehensive Apple Macintosh installation with facilities for Word Processing and Desk Top Publishing. Isn“t it an exc

49、ellent place for your study and research? By the way, study for the degree of PH. D and MSc may be undertaken by research and a taught MSc course is also available. The department has some well-known figures in their research areas. Professor Anderson, chairman of the department, is a specialist in the design of VLSI components and systems. The components and systems have applications in image and signal process