46．A．but B．a(chǎn)nd C．or D．if 【查看更多】

 

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How to Look After a Computer

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

1．    Keep your computer in a cool, dry room.    71   Most computers work best at a temperature of 5℃-30℃.

2．        72    Smoke of all kinds is very bad for many parts of a computer and can cause many problems.

3．        73     Pieces of food and a little water in the keyboard can also cause many problems.

4．    Make sure that the keyboard and screen are at the correct height for you.

        74    

5．    Make sure the screen（屏幕）is the correct distance (距離) from your eyes. If you wear glasses, make sure these glasses are correct for using the computer.     75  

6．    Keep your screen clean and don’t make it too bright. A dirty or a very bright screen can hurt your eyes.

在方框中選擇恰當(dāng)?shù)木渥友a(bǔ)全以上短文，將序號(hào)填在相應(yīng)的橫線上。（5分）

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

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

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

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

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

71._______ 72._______ 73._______ 74._______ 75._______

   

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Hurry up, ________ you'll be late for class.

[　　]

A．but
B．if
C．a(chǎn)nd
D．or

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　　Tom   1   a middle school students. He enjoys   2   football. He also likes watching football matches. As he hasn’t enough money to buy tickets, he has to   3   them on TV at home if he   4   free. But Tom must go to school   5   Monday to Friday. So he watches football matches on Saturday   6   Sunday.

　　Last Thursday morning there was a big football match on TV. Tom knew it. He got up late when his mother came   7   his bedroom and asked, “Why do you get up late? What’s wrong with you? ”“I have a bad headache（頭痛）, I’m afraid. I can’t go to school today, Mum. Could I   8   home this morning? I think I   9   this afternoon. ”Tom answered. “But if the match is over, you must   10   to school this afternoon. ”His mother said.

　　1．A. is　　　　 　　　　　　  B. am　　　　　　　　　　 　　   C. are　　  　　　　　　　　　　 D. was

　　2．A. play　　　　　　　　　　 B. plays　　　　　　  　　　　　　  C. playing　　　　   　　   D. to play

　　3．A. watch　　　　　　　　　　 B. watches　　　　 　　   C. watched　　　　　　　　　　 D. watching

　　4．A. will be　　　　　　　　　　 B. will is　　　　　　 　　　　　　  C. is 　　　　　　　　　　 　　   D. has

　　5．A. from　　　　　　　　　　 B. on　　　　　　　　  　　   C. in　　   　　　　　　　　　　 　　   D. about

　　6．A. but　　　　　　　　　　 B. or　　　　　　　　  　　  ?; C. on　　  　　　　　　　　　　 D. in

　　7．A. in  　　   　　　　　　  B. on　　　　　　　　  　　   C. into　　 　　　　　　　　　　 D. with

　　8．A. stayed　　　　　　　　　　 B. stay at　　　　    　　　　　　  C. stayed at　　　　 　　   D. live

　　9．A. am good　　　　　　  B. am well　　　　  　　   C. will be well　　　　　　   D. will is well

　　10．A. go to　　　　　　　　　　 B. goes to　　　　   　　   C. go　　  　　　　　　　　　　 D. going

 

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．Hurry up, ________ you’ll not catch the first bus.

A．a(chǎn)nd B．or C．but D．if 

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Get up quickly, ________ you'll be late for school!

[　　]

A．if
B．a(chǎn)nd
C．but
D．or

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