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    We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:

    1.Keep your computer in a cool, dry room. Too much or too little heat is bad for computers. Damp(潮湿) is also bad for them.

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

    3.Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.

    4.Keep your screen clean and do not have it too bright. They are bad for your eyes. Make sure the screen is not too far from or too near your eyes. Some people use different glasses to protect their eyes when they use a computer.

    1.Computers can          people to do a lot of work.

            A.use       B.help     C. make       D.take

    2.Few people know how to          their computers.

            A.look at     B.try out    C.look for   D.take care of

    3.A computer works well at a temperature of         .

            A.0℃      B.-5℃      C.20℃            D.35℃

    4.Smoke is not good for many parts of a computer, is it?

            A.Yes,it is.  B.No,it isn't.   C.Yes,a little.  D.Not at all.

    5.A dirty screen or a very bright screen is    for your eyes.

            A.bad     B.good     C.useful        D.helpful

     

    【答案】

     

    1.B

    2.D

    3.C

    4.A

    5.A

    【解析】 略

     

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