1、7、

4、1、

A. 　 find

B. 　 take

C. 　 show

D. 　 make sure

7、3、

A. to speak

B. for speaking

C. to speaking

D. to speaking of

5、5、

A. senses

B. reasons

C. purposes

D. meanings

4、3、

A. 　 turn out

B. 　 take on

C. 　 take out

D. 　 come into

1、Passage 20Clifford Stoll ran a computer system in Berkelely, California. As a system administrator, he
kept a close eye on the records. One day, Stoll found something strange in the payment record.
There was a 75 cents mistake. One of the thousands of users had used the system for 75 worth of
time and not paid for it.
It might sound like very little money to worry about. But that 75 cents was the first clue Stoll
had to a much bigger problem — that a hacker（黑客）had broken into Stoll‘s computer system.
Who was it? Stoll spent the next year trying to find out. During that time the hacker used the
system in Berkelely as a starting point to break into military computer systems all over the United
States.
Stoll had to keep track of the hacker‘s activities on the computer without the hacker‘s
knowing someone was watching him. Stoll even made up huge files of false information so the hacker would have lots to read. When the hacker spent long time reading, the telephone company
was able to trace the lines. After a year, the hacker was traced back to his computer — in
Germany. He was later caught by the German police.
5. Why did Stoll make up huge files of false information?

A. 　He wanted to give the hacker a lesson.

B. 　It would help the telephone company trace the line.

C. 　It would give the police more time to find out the hacker.

D. 　He could watch the hacker‘s activities more closely.

7、2、

A. gone

B. been

C. got

D. come

151.We all knew from the very( )that the plan would fail.

A. 　outcome

B. 　 outset

C. 　 income

D. 　 output

6、11、

A. custom

B. use

C. tradition

D. habit

199.The students will put off the math until next week,( )they won‘t be so busy.

A. 　since

B. 　 as

C. 　 when

D. 　 while

3、9、

A. 　 for example

B. 　 perhaps

C. 　 then

D. 　 of course