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 room. Too much or too little heat is bad for computers. Most computers work best at a temperature of 5 ºC—30 ºC.
◆Don’t let people smoke cigarette(香烟）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 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 don’t have it too bright. A dirty screen can hurt your eyes. A very bright screen can also be bad for your eyes.
小题1: According to the passage you should use your computer .
A．in a small room
B．in a big room
C．in a cool room
D．below 5ºC小题2: When you work on the computer, you can .
A．wear glasses
B．smoke cigarette
C．eat some hamburgers
D．clean the keyboard with water小题3:If you want to look after your eyes, you should when you use computers.
A．buy a pair of sunglasses
B．keep your screen clean
C．have your screen very bright
D．keep your screen near your eyes
小题1:C
小题2:A
小题3:B
题目分析：本文给我们介绍了用电脑时的几个注意事项。把电脑放在凉爽的房间里，不要让人在你电脑附近吸烟，当你在电脑附近时不要吃喝东西，注意屏幕离你眼睛的正确距离，保持屏幕清洁等。
小题1:细节理解题。根据这篇短文你应该在一个凉爽的房间里用电脑。根据Keep your computer in a cool room.可知答案，故选C。
小题2: 细节理解题。当你用电脑工作时， 你可以戴眼镜。据第三、第四段可知B. smoke cigarette
C. eat some hamburgers D. clean the keyboard with water是不可以做的事，故选A。
小题3:细节理解题。如果你想关照你的眼睛，当你用电脑的时候你应该保持屏幕清洁。据最后一段Keep your screen clean and don’t have it too bright. A dirty screen can hurt your eyes.可知屏幕脏会伤害你的眼睛，故选B。