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計算機專業英語Unit 9

Unit 9 Computer Virus

Text 1 Virus Introduction

Exercises

1. Multiple choices.

(1)A virus is a ( A ).

A. program

B. computer

C. bad man

D. beast

(2)A virus is a program that reproduces its own code by ( ABC ).

A. adding to the end of a file

B. inserting into the middle of a file

C. simply placing a pointer

D. replacing another program

(3)( AD )is a type of executable file .

A. COM file

B. TXT file

C. JPG file

D. EXE file

(4)Similar to viruses, you can also find malicious code in ( ABC ).

A. Trojan Horses

B. worms

C. logic bombs

D. Microsoft Word Documents

2. Fill in the blanks.

(1)A virus is a program that reproduces its own code by attaching itself to other

executable files in such a way that the virus code is executed when the infected

executable file is executed .

(2)To attach might mean physically adding to the end of a file, inserting into the middle of

a file, or simply placing a pointer to a different location on the disk somewhere where

the virus can find it.

(3)Similar to viruses, you can also find malicious code in Trojan Horses, worms, and

logic bombs.

3. Translate and analyze the following sentences.

(1)These self-replicating codes, when caused by some event, may do a potentially harmful

a ct to your computer.

句子組成:when引導時間狀語從句做插入語,當…的時候.

翻譯:當這些自復制代碼被一些事件觸發時,或許會做出一些對你的計算機有潛在危害的行為.

(2)M ore recently, scripts written for Internet web sites and/or included in E-mail can also

b e executed and infected.

句子組成:scripts written…省略的定語從句完整形式scripts which were writtened….

翻譯:現在,為網站編寫的或者包括在E-mail中的腳本也能夠被執行和感染。

4. Reading comprehension.

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