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时间：2019-02-02 03:28:48　来源：柠檬阅读网本文已影响人

　　Can you use a computer? Do you know how to take good care of a computer? 　　Many young people can use a computer and they know that the keyboard and screen should be at a proper height. If not，they will get a backache(腰痛). They also know that the screen must be at a proper distance from their eyes and some people even wear glasses when they use a computer. But few of them know how to look after their computers. Remember the following when you use a computer.
　　1. Keep your computer in a cool and dry room. Damp(潮湿) is bad for your computer. Most computers work best at a temperature of 5-10 degrees centigrade(摄氏).
　　2. Do not let people smoke cigarettes(吸烟) near your computer. Smoke of all kinds is very bad for many parts of your computer and can cause(引起) many problems.
　　3. Do not eat or drink when you are near your computer. Pieces of food and a little water on the keyboard(键盘) can also cause many problems.
　　4. Keep your screen clean and do not have it too bright. A dirty screen can hurt your eyes. A too bright screen can also be bad for your eyes.
　　5. Never use any softwares(软件) that you don’t know very much. You must be careful because some softwares can bring viruses(病毒) into your computer. If your computer has viruses，it can’t work or even breaks down(损坏).
　　根据短文内容，从A、B、C、D中选择正确答案。
　　1. Most computers work best_________.
　　A. in a cool and wet room
　　B. at a temperature of 5-l0 degrees centigrade
　　C. in a humid room
　　D. at a temperature of 15-20 degrees centigrade
　　2. You had better not_________near your computer.
　　A. sing B. listen to the music
　　C. talk D. smoke，eat or drink
　　3. If your keyboard and screen are not at a correct height，_________.
　　A. your computer cannot work
　　B. you will feel unwell(不舒服的) in your back
　　C. your computer is bad for your eyes
　　D. your computer will have viruses
　　4. Which of the following descriptions is TRUE?
　　A. Make sure your screen is not too bright.
　　B. Try to use different softwares that you don’t know too much.
　　C. A little water on the keyboard doesn’t matter much.
　　D. You can use any softwares.
　　Key：1-4 BDBA

相关热词搜索： GOOD Care Computer

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