閱讀短文，根據題目要求完成各小題。
    Many young people 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 computers.Most computers work best at a temperature of 5℃～30℃.
    ?Don't 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 and screen are at the correct height for you.If they are not at the correct height，you will get a backache.
    ?Make sure the screen is the correct distance from your eyes. If you wear glasses，make sure these glasses are correct for using the computer.Some people use a different pair of glasses when using a computer.
    ?Keep your screen clean and don't make it too bright.A dirty or a very bright screen can hurt your eyes.

根據短文內容，回答下列問題。
（1）When you use the computer，how many pieces of advice are mentioned in the passage？

Six.

Six.

（2）When computers work，what is the best temperature？

Most computers work best at a temperature of 5℃～ 30℃.

Most computers work best at a temperature of 5℃～ 30℃.

（3）When you are near the computer，why can't you eat or drink？

Because pieces of food and a little water in the keyboard can also cause many problems.

Because pieces of food and a little water in the keyboard can also cause many problems.

（4）Translate the underlined sentence into Chinese.

確保屏幕與眼睛的距離正確。

確保屏幕與眼睛的距離正確。

（5）Give a proper title to the passage.

How to look after the computer.

How to look after the computer.