西南大學網(wǎng)絡(luò)學院專業(yè)英語網(wǎng)上第五次作業(yè)

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.寫出下列術(shù)語的英文或中文意思。1 DSL 2 fax machine  3 wireless communicatio

6、ns  4 高清晰度電視5 公用電話網(wǎng)1、數(shù)字用戶線路2、傳真機 3、無線通信4、high definition television5、public telephone network 12.閱讀下列短文，從A、B、C、D四個選項中，選出最佳選項。    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.請將下列英語句子翻譯成漢語，要求內(nèi)容忠實原文，語句通順，邏輯清楚，表達正確。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、病毒的一個變種是蠕蟲病毒。這種破壞性程序用自我復(fù)制的信息填滿計算機系統(tǒng)，阻塞系統(tǒng)，使系統(tǒng)的運行減慢或停止。2、安全與信息、硬件與軟件的保護有關(guān)。安全措施包括加密、限制訪問、預(yù)防災(zāi)難和制作備份。3、我們生活在這樣一個時代

22、：聲音、數(shù)據(jù)和圖像都不過是比特，是要通過最寬的管道和最具有容納力的頻道傳遞的1和0。比特是不可知論者。他們不關(guān)心如何達到所要去的地方-他們所關(guān)心的只是在適當?shù)臅r刻按適當?shù)捻樞虻竭_。14.請將下列漢語句子翻譯成英文，要求內(nèi)容忠實原文，語句通順，邏輯清楚，表達正確。1.打開用于運行程序的指令或可執(zhí)行代碼時，計算機病毒即被激活。 2.使用備份進行恢復(fù)是恢復(fù)文件的最安全，最有效的方法。 3.我們生活在這樣一個時代：聲音、數(shù)據(jù)和圖像都不過是比特，是要通過最寬的管道或最具有容納力的頻段傳遞的1和0。 4."虛擬”結(jié)合將選取你使用的臺式計算機的功能，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