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

Keep your computer in a cool, dry room. Too much or too little heat is bad for your computer. Wet is also bad for them. Most computers work best at a temperature(溫度)of 5℃～30℃.

Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer and can cause many problems.

Don't 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(鍵盤) and the screen(屏) are the correct height for you. If they are not correct, you will get backache(頭疼).

Make sure the screen is the correct distance(距離) 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.

1.This passage(文章) is about_______.

A. how to use a computer B. how to look after your computer

C. how to clean your computer D. how to buy a computer

2.Don't eat or drink near a computer because__________.

A. food and water can dirty your screen

B. some food or a little water in the keyboard may cause problems

C. eating and drinking is bad for your computer

D. computer can work best at a temperature of 5℃～30℃

3.Your computer can work well if you_________.

A. clean your screen carefully and make it very clear and bright

B. smoke when you use your computer

C. put your computer in a cool, dry and clean room

D. don't eat or drink

4.You will hurt your eyes if you_________.

A. put on a pair of special glasses when you use your computer

B. make sure there’s a correct distance between you and your computer

C. never clean the screen of your computer

D. don't have your screen too bright

5.After you read the passage, you will ________when you use your computer.

A. clean your room every day

B. be careful to put the keyboard and the screen in the right place for you

C. do not smoke at any time

D. remember to use the computer without anyone nearby

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