西南大学网络学院专业英语网上第五次作业

1、1The most common microcomputer secondary storage medium is_B_ A：diskette  B：hard disk  C： magnetic tape  D： video disk 2.A computer program is a detailed set of C used to tell a computer how to solve a problem or carry out a task. A：data  B：software  C：instructions

2、  D：statement 3. D is made up of eight bits.   A：word  B：hex  C：sign  D：byte 4. C converts a page of text or images into an electronic format that the computer can display, print, and store.   A：digital camera  B：computer projection  C：scanner  

3、D：dot matrix printer 5.The basic output device on a small computer is a_B_   A：keyboard  B：display screen  C： diskette  D：plotter 6.The_C_indicates where on the screen the next character will appear.   A：pixel  B：pictuer element  C：cursor  D：x-y coor

4、dinate 7.A location in memory is accessed by its_A_.   A：address  B：value  C：content  D：register 8.We look forward _D_ from you.   A： hear  B： to hear  C： hearing  D：to hearing 9.   Which one is used to store numeric data during processing?

5、  B A：Microprocessor chip  B：Registers  C：Clock  D： Data bus 10.External devices are linked to a small computer system through_D_.   A：channel  B：control units  C：plugs  D：interfaces 11.写出下列术语的英文或中文意思。1 DSL 2 fax machine  3 wireless communicatio

6、ns  4 高清晰度电视5 公用电话网1、数字用户线路2、传真机 3、无线通信4、high definition television5、public telephone network 12.阅读下列短文，从A、B、C、D四个选项中，选出最佳选项。    Thirty years ago I worked in a company . My job was to sell the cars . I was young and strong and I had been to most parts of the world and I spen

7、t one fifth of my time in the trains or planes . I liked such a life and sometimes I called myself "traveller ”. But one day I got into trouble . It was a cold morning . It blew heavily and the ground was covered with thick snow outside . I was still in bed though it was nine . I finished a lon

8、g journey the day before and decided to have a good rest . Suddenly the telephone rang and my manager told me to fly to New York to take part in an important meeting . I had to get up and after a quick breakfast I hurried to the airport . The taxi went slowly and I missed the first flight . I had to

9、 take the next one . It meant I would wait for nearly five hours in the waiting-room . But five hours later a passenger said the information showed there was a bomb in our plane and the policemen were looking for it . And another five hours passed and most passengers lost their patience before we we

10、re allowed to get on the plane . At the entrance each passenger and their baggage had to be examined . A young man who seemed a soldier shouted at the policemen at the entrance , "If I had a gun in my baggage . I would shoot you two hours ago !”  1. The writer called himself "travelle

11、r ” because he _ . A. sold cars for his company B. often took trains and planes C. travelled all over the world D. liked travelling in many places 2. He didn't get up until the phone rang because he _ . A. felt very cold outside B. wanted to have a rest that day C. was going to have a meeting D.

12、 was waiting for the manager's call 3. The taxi went slowly because _ . A. there was much snow on the road B. it was very cold that morning C. the driver didn't know he would fly to New York D. the manager told him not to hurry 4. He spent nearly _ hours in the waiting-room that day . A. fiv

13、e B. seven C. eight D. ten 5. The young man became angry because he _ . A. wouldn't be examined B. had a gun in his baggage C. waited for a long time at the airport D. hated the policemen at the entrance       The Chinese invented paper in 105 A.D. They mixed the ba

14、rk of a tree and rags（破布）with water, put a screen into the mixture, and lifted out a thin piece of wet paper. They dried the paper in the sun.The Chinese kept their secret of how to make paper until a war with Muslims in the ninth century. The art of papermaking soon spread throughout the Muslim wor

15、ld.The Mayan Indians in Central America and Pacifica Islanders also discovered how to make paper, but their knowledge never spread to the rest of the world.For centuries, all paper was made by hand. Rags were the main material. Then a French scientist discovered that people could make paper from woo

16、d, too. Finally, in the eighteenth century, a Frenchman invented a machine to make paper from wood.6Who discovered how to make paper?AThe ChineseBThe Pacific IslandersCThe Mayan Indians.DAll of the above.7When did the Chinese invent paper according to the passage?AAbout 1800 years ago.BAbout 1900 ye

17、ars ago.CAbout 2000 years ago.DAbout 2100 years ago.8How was paper making introduced into the rest of the world from China?AThrough warsBThrough the Muslims.CThrough the Mayan IndiansDThrough the Pacific Islanders9Which of the following is the most important thing that has made it possible for paper

18、 making industry to develop so quickly in the last few centuries?ANew discoveriesBNew inventions.CHard workDScience10Which of the following is the best topic for this passage?AThe Invention of PaperBThe History of Papermaking.CDifferent Ways of Making Paper.DThe Invention of a Papermaking Machine.1-

19、5    CBADC,6-10   DBBDB13.请将下列英语句子翻译成汉语，要求内容忠实原文，语句通顺，逻辑清楚，表达正确。1.A variant on the virus is the worm. This destructive program fills a computer system with self-replicating information, clogging the system so that its operations are slowed or stopped. 2.Security is conc

20、erned with protecting information, hardware, and software. Security measures consist of encryption, restricting access, anticipating disasters, and making backup copies.  3.We live in an age where voice, data, and video are just bits, ones and zeros to be pushed down the broadest pipe or around

21、 the most accommodating slice of spectrum. Bits are agnostic. They don't care how they get where they're goingonly that they arrive in the right order and at the right moment. 1、病毒的一个变种是蠕虫病毒。这种破坏性程序用自我复制的信息填满计算机系统，阻塞系统，使系统的运行减慢或停止。2、安全与信息、硬件与软件的保护有关。安全措施包括加密、限制访问、预防灾难和制作备份。3、我们生活在这样一个时代

22、：声音、数据和图像都不过是比特，是要通过最宽的管道和最具有容纳力的频道传递的1和0。比特是不可知论者。他们不关心如何达到所要去的地方-他们所关心的只是在适当的时刻按适当的顺序到达。14.请将下列汉语句子翻译成英文，要求内容忠实原文，语句通顺，逻辑清楚，表达正确。1.打开用于运行程序的指令或可执行代码时，计算机病毒即被激活。 2.使用备份进行恢复是恢复文件的最安全，最有效的方法。 3.我们生活在这样一个时代：声音、数据和图像都不过是比特，是要通过最宽的管道或最具有容纳力的频段传递的1和0。 4."虚拟”结合将选取你使用的台式计算机的功能，使其在你所需要的任何地方供你使用。1、Open the command used to run the program or executable code, the computer virus is activated.2、Use the backup recovery is the recovery file t