Question

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

·Keep your computer in a cool, dry room. 1. Moisture (潮湿) is also bad for them. Most computers work best at a temperature of 5℃—30℃.

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

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

·Make sure that the keyboard and screen (屏幕) are the correct height (高度) for you. 4.

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

·Keep you screen clean and don’t make it too bright. A dirty screen can hurt your eyes. A very bright screen can also be bad for your eyes.

将下列句子的序号填在横线上，使短文完整。

A. Some people use a different pair of glasses when they use a computer.

B. Too much or too little heat (热量) is bad for computers.

C. Don’t eat or drink when you are near your computer.

D. If they are not the correct height, you will get a backache.

E. Don’t let people smoke near your computer.

 

Answer 1

1.B

2.E

3.C

4.D

5.A

【解析】

试题分析：这篇短文中作者介绍了使用计算机的几个注意事项，包含放置环境、放置的高度和距离以及远离烟火、食物和水、保护眼睛等方面。

1.

2.Smoke of all kinds is very bad for many parts of a computer and can cause many problems. 可知要使计算机远离烟火；故选E。

3.

4.Make sure that the keyboard and screen (屏幕) are the correct height (高度) for you.描述的是计算机的安放高度；故选D。

5.If you wear glasses, make sure these glasses are correct for using the computer.如果戴眼镜，要确保这些眼睛适合使用电脑，原因在于人们使用的眼睛是不同的，和A相吻合；故选A。

考点：健康类短文阅读。