How to Look After a Computer

Many young people use computers, but few of them know how to look after them. Remember the following when you use your computer.

1．    Keep your computer in a cool, dry room.    71   Most computers work best at a temperature of 5℃-30℃.

2．        72    Smoke of all kinds is very bad for many parts of a computer and can cause many problems.

3．        73     Pieces of food and a little water in the keyboard can also cause many problems.

4．    Make sure that the keyboard and screen are at the correct height for you.

        74    

5．    Make sure the screen（屏幕）is the correct distance (距离) from your eyes. If you wear glasses, make sure these glasses are correct for using the computer.     75  

6．    Keep your screen clean and don’t make it too bright. A dirty or a very bright screen can hurt your eyes.

在方框中选择恰当的句子补全以上短文，将序号填在相应的横线上。（5分）

71._______ 72._______ 73._______ 74._______ 75._______

Many young people can use the computer, but few of them know how to look after them．

Remember the following when you use the computer．

Keep your computer in a cool, dry room．Too much or too little heat is bad for computers．Damp is also bad for them．Most computers work best at a temperature of 5-30 degrees centigrade．Computer, just like some people, may prefer（更喜欢）autumn to （比起） summer and winter．Do not let people smoke cigarettes near your computer．Smoke of all kinds is very bad for many parts of a computer and can cause many problems．

Do not eat or drink when you are near your computer． Pieces of food and a little water in the keyboard can also cause many problems．

Make sure that the keyboard and the screen （键盘与屏幕） are the correct height for you．If they are not correct, you'll get backache．

Make sure the screen is the correct distance from your eyes．If you wear glasses, make sure these glasses are correct for using with the computer．Some people use a different pair of glasses when they use a computer．

Keep your screen clean and do not have it too bright．A dirty screen can hurt your eyes．A very bright screen can also be bad for your eyes．If you can afford one, buy a computer screen．It will be better for you than using the screen of a TV set．

1．According to this passage （根据文章）, ____________

A．more and more people can use computers and take care of them．

B．fewer and fewer people know how to the protection of the computers nowadays．

C．many young people can use computers but few of them know how to look after them．

D．Most computer lovers are fond of eating their food while playing computer games．

2．Computer, just like some people, may prefer__________

A．autumn to summer and winter                   B．neither winter nor summer or autumn

C．summer to winter and autumn                   D．both summer and winter

3．Putting the keyboard and screen too high means you ____________

A．will get backache．

B．will have a headache．

C．don't have to look at your manuscript （稿件） while typing

D．are hard-working

4．Some people use a different pair of glasses when they use a computer because they want to______

A．protect the computer

B．prevent （ 防止） their eyes being hurt（被伤害）

C．make them look cool

D．show off（炫耀） his glasses

5．Which is NOT true according to the passage?

A．If the height of the screen isn't correct, you'll get backache．

B．Smoking is bad for a computer and is one of the cause of many problems．

C．You can eat or drink when you are near your computer．

D．Make sure the screen is the correct distance from your eyes．