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阅读下列短文从每题所给的四个选项(A,B,C和D)中,选出最佳选项。

  On October 12, 1989, some Chinese scientists were working at the computers to look for information they needed.Suddenly they saw a lot of very bright spots crossing the computer’s screens.At the same time the computers were working much slower.To find out what was happening they stopped their work to check some parts of the computers.To their horror, they found out that most of their stored information was got rid of by computer viruses (病毒)! Obviously all these computers had been infected by computer viruses.

  It is said that the computer viruses were made by a group of young men fond of playing tricks.They all had excellent education.They created the viruses just to show their intelligence (才智).These kinds of computer viruses are named Jerusalem(耶路撒冷)Viruses.These viruses can stay in computers for a long time.When the time comes they will attack the computers by lowering the functions (功能), damaging their normal programs or even getting rid of all the information.

  We now come to know that Jerusalem Viruses often attack computers on Fridays and that they are spreading to a lot of computers.Among the countries that suffered computer viruses last year are Britain, Australia, Switzerland and the U.S.But fill now, how to get rid of the terrible viruses remains a problem.

(1)

The group of young men created the viruses to ________.

[  ]

A.

damage the computers

B.

test their ability

C.

tell the world that they were intelligent

D.

play a trick on operators of the computers

(2)

According to the passage, computer viruses seem to ________.

[  ]

A.

have been in nature for years

B.

exist in any computers

C.

be difficult to get rid of at present

D.

be able to be got rid of in the near future

(3)

The most serious damage caused by the viruses is that ________.

[  ]

A.

the computer’s functions are lowered

B.

the normal programs are damaged

C.

all the information stored in the computers is gone

D.

the computers infected by the viruses can no longer be used

(4)

According to the passage, which of the following is true?

[  ]

A.

Last year four countries found their computers were infected by viruses.

B.

The viruses will come to a new computer after staying in the old one for some time.

C.

Scientists are trying to find a way to get rid of the viruses.

D.

The Jerusalem Viruses are a great harm to human health.

答案:1.C;2.C;3.C;4.C;
提示:

(1)

提示:第二自然段第三句话“They created the viruses just to show their intelligence”暗示了答案。答案D“捉弄计算机用户”在文中没有提到。

(2)

提示:本文最后一句话“how to get rid of the terrible viruses remains a problem”,暗示答案如C项所述。

(3)

提示:第二自然段句子“…damaging their normal programs or even getting rid of all the information”,正是答案所述,即计算机一旦受到这种病毒的影响,计算机里的信息就会失去。

(4)

提示:深层理解题。从本文结尾看,直到现在,如何除掉这种可怕的病毒还是个问题,但人们正在努力地寻找着它的克星。


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