3. According to the passage, computer viruses seem to ____.

　　 A. have been in nature for years

　　 B. stay in any computers

　　 C. be difficult to get rid of at present

　　 D. be able to be got rid of in the near future

2. The group of young men created the viruses to ____ .

　　 A. damage the computers

　　 B. test their ability

　　 C. tell people that they were intelligent

　　 D. play a trick on users of the computers

1. When the viruses attack the computers, the computers will work____ .

　　 A. normallyB. slowly

　　 C. faster D. well

75.According to the teacher,in which situation do you think the word "will" is used in the same way Jill uses it?

A.It's too heavy,I think.I'll help you. B.Don't get into his office.He will be angry now.

C.You won't have to come to my office.I will send it to you. D.Will you please do me a favor?

56_~60 DDCDB 61_~65 ADBBB 66_~70DCBBB 71_~75 ADACB

74.In the second situation,Jill_____.

A.knows that Mary has gone to bed B.doesn't know that Mary is asleep

C.thinks it's likely that Mary cannot answer the telephone D.is sure that Mary can not answer the telephone

73.In the first situation,Mary's mother_____.

A.wants to tell you that she knows Mary is asleep B.knows that Mary was asleep

C.has no idea whether Mary is asleep or not D.wants to know if she can take a message for Mary

72.According to the passage,you should not swim alone because_____.

A.the water is too cold B.your parents would not be happy

C.something in the water might attack D.you might drown

E

Is there a difference in meaning between"It's too late to make a telephone.Mary is asleep now." and "It's too late to telephone.Mary will be asleep now？"

Yes.The difference is in the reason given for it being too late to telephone.In the first sentence"Mary is asleep now",the speaker is stating a fact.In the second sentence"Mary will be asleep now," the speaker is saying what Mary usually does.In fact,it's possible that Mary isn't asleep,but she is usually asleep at this time.

So let's take two situations.In the first case,imagine Mary's mother answers the telephone.

You:"May I speak to Mary,please?"

Mother:"No.It's too late.Mary is asleep now."

You:" Are you sure?It's only 10 o'clock."

Mother:" Yes.I went to her room and she was asleep."

The mother knows that Mary is asleep because she went into her room and saw her.

Here is another case.Two friends decide to telephone Mary.

Jack:"Let's telephone Mary.It's 10 o'clock."

Jill:"No,It's too late.She will be asleep now."

Jill knows that Mary always goes to bed before 10 o'clock ,so now she'll probably be asleep.But it is also possible that she is staying up late.

71.The stroke that some young swimmers use first is_____.

A.Picture(1) B.Picture(2) C.Picture(3) D.Picture(4)

70.The author believes that fear of water is_____.

A.stupid B.sensible C.dangerous D.not smart