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My sister always does ________ homework every day.

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完形填空．

Many middle school students like   1  very much．But  2  Friday they must  go to school．So on saturday they  3  at home and watch TV from morning to night．They don't know it's bad for their  eyes．Usually children like to eat fish．meat and chicken，don't 1ike vegetables  4  fruit．They don't know that  5  more  vegetables and fruits i s  6   than eating meat．

At school the children only do a few minutes of sport or  7 do any sport．The students must know it  isn't  good for   8   health，too．

We already think of ways to keep  9  ．We must eat  10  vegetables and fruit，do enough(足夠)sport every day．And we should watch TV and read in right wavs．

1.                A．watch TV        B．watch the TV     C．watching TV   D．watching the TV

 

2.                A．on Monday and  B．on Monday and on C．from Monday and   D．from Monday to

 

3.                A．stay           B．1ive           C．sit   D．1eave

 

4.                A．a(chǎn)nd            B．with           C．or   D．but

 

5.                A．buying         B．eating          C．getting   D．keeping

 

6.                A．good           B．better          C．bad  D．worse

 

7.                A．often          B．sometimes      C．usually   D．never

 

8.                A．them          B．they           C．their D．theirs

 

9.                A．health          B．healthy         C．busy D．free

 

10.               A．more          B．much          C．a(chǎn) lot of    D．1ittle

 

 

Though smoking is known to be not good to one's health, many countries see ________ change in the number of smokers.

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

Keep your computer in a cool, dry room．Too much or too little heat is bad for computers．Damp is also bad for them．Most computers work best at a temperature of 5-30 degrees centigrade．

Do not let people smoke cigarettes near your computer．Smoke is very bad for many parts of a computer and can cause many problems．

Do not eat or drink when you are near your computer．Pieces of food and a little water in the keyboard call also cause many problems．

Make sure that the keyboard and tile screen are the correct height for you．If they are not correct，you'll get backache．

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 do not have it too bright．A dirty screen can hurt your eyes．A very bright screen can also be bad for your eyes．If you can afford one, buy a computer screen．It will be better for you than using the screen of a TV set．

1．According to this passage，        ．

A．more and more people can control computers as well as take care of them．

B．fewer and fewer people pay any attention to the protection of the computers nowadays．

C．most young people can control computers well while paying little attention to keeping them well．

D．most computer lovers are fond of eating their food while playing computer games．

2．Computer，just like some people，may prefer（更喜歡）        ．

A．a(chǎn)utumn to（比起）summer and winter       B．neither winter nor summer or autumn

C．summer to winter and autumn                     D．both summer and winter

3．Putting the keyboard and screen too high means you         ．

A．have to straighten your back long every time

B．have to lower your head while using the computer

C．don't have to look at your manuscript while typing

D．don't have to look sideways from time to time

4．Some people use a different pair of glasses when they use a computer because they want to         ．

A．protect the computer                                       B．prevent their eyes being hurt

C．make them look cool                                  D．show off his glasses

5．Which is NOT true according to the passage?

A．If the height of the screen isn't correct，you'll get backache．

B．Smoking is bad for a computer and is one of the cause of many problems．

C．You should wear a different pair of glasses when you use a computer．

D．You should use a computer screen instead of a TV screen．