80.The use of e-mail has made it possible for the writer to______

　 A. spend less time working　　　　　 B. have more free time with his child

　 C. work at home on weekends　　　　 D. work at a speed comfortable to him

79.The purpose of this passage is to_______

A.　 explain how to use the Internet　　

B.　 describe the writer’s joy of keeping up with the latest technology.

C.　 Tell the merits and usefulness of the Internet

D.　 Introduce the reader to basic knowledge about personal computers and the Internet

78.This passage is probably written for______

A.　 computer teachers　 B. computer producers C. computer learners D. computer programmers

(　 二十五　　 )

　　 Personal computers and the Internet give people new choices about how to spend their time.

Some may use this freedom to share less time with certain friends or family members, but new technology will also let them stay in closer touch with those they care most about. I know this from personal experience.

E-Mail makes it easy to work at home, which is where I now spend most weekends and evenings. My working hours aren’t necessarily much shorter than they once were, but I spend fewer of them at the office. This lets me share more time with my young daughter than I might have if she’d been born before electronic mail became such a practical tool.

The Internet also makes it easy to share thoughts with a group of friends. Say you do something fun---see a great movie, perhaps---and there are four or five friends who might want to hear about it. If you call each one, you may tire of telling the story.

With e-mail, you just write one note about your experience, at your convenience, and address it to all the friends you think might be interested. They can read your message when they have time, and read only as much as they want to. They can reply at their convenience, and you can read what they have to say at your convenience.

E-mail is also an inexpensive way to stay in close touch with people who live far away.

More than a few parents use e-mail to keep in touch, even daily touch, with their children off at college.

　 We just have to keep in mind that computers and the Internet offer another way of staying in touch. They don’t eliminate(排除)any of the old ways.

77.According to the writer, the bad effects of computers can be avoided if we_______

A.　 have sound knowledge of computer systems　 B. tell people not to misuse computers

C. have strict rules over the use computers　 D. make more investments in the technology

76.According to the passage, computers bring people the following benefits EXCEPT_______

A.　 avoiding mistakes　 B. saving money C. making money D. opening up opportunities.

75.The word” extend” in the second paragraph is closest meaning to _______

　　 A. change　　　 B. multiply　　　　　　 C. save　　　　 D. master

74.The writer thinks learning about computers is like learning how to ride a bike or drive a

　　 car because_________

　 A. it is simple and practical　　　　　　 B. it needs a lot of practice

C.it leads people to new life experience D. it takes much time to master the skills

73. The police and the firemen found it not so easy to rescue Jules because_______

A.the air supply in the room had been shut off by the computer

B.Jules was in very poor mental state　 C. it was difficult to get into the room

D.they were not familiar with the room

(　 二十四　 )

Can you remember the first time you learned how to ride a bike or drive a car? Learning these skilled changed your life forever and opened up new horizons. Learning about computers can be like learning how to ride a bike or drive a car. Once you have invested the time to master the skills, you will never go back to the old days. The mew technology is simply too convenient and too powerful.

Technological developments through the years have enabled us to do more with less effort. We have continuously looked for better ways of doing things. Each invention and new development has allowed us to extend our capabilities(能力) . Today we see one of the most dramatic technologies ever developed---the computer. It extends the capabilities of our minds.

Computers have saved organizations millions dollars. Furthermore, these same computer systems have opened up new opportunities that would have gone undiscovered or neglected .The computer can multiply what we can do, and the return on investment(投资)is high. The growth of computer usage is surprising. On the other hand, the computer can do serious damage. Invasion of privacy, fraud(欺诈),and computer-related mistakes are just a few shocking examples.

The computer is like a double-edged sword. It has the ability to cut us free from some activities, but it can also cut deeply into profits, personal privacy, and our society in general. How it is used is not a function of the current technology.　 It is strictly a function of how people decide to use or misuse this new technology. The choice is yours, and only through a knowledge of computer systems will you be able to avoid the danger while enjoying the many, many benefits of the computer age.　

72. Jules sent out a signal for help by________

A. shouting at the top of his voice　　　　　 B .hammering on the power supply pipe　

C. kicking at the main console with his shoes　 D. crawling under the main console

71. How did Jules feel when he finally realized that his computer was trying to kill him?

　 A. Frightened and furious　　　　　 B. Sad and frustrated(泄气)

　 C. Discouraged and disappointed　　 D. hurt and insulted