摘要:( ) Tom, you are a kind boy.Thank you your help. A.of B.by C.to D.for

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根据短文内容判断正(T)误(F)。
  Many years ago, children who had good manners kept quiet if their parents were
talking with other people.Today, well-mannered children have more freedom.
  Sometimes good manners in one place are bad manners in another place.
  Suppose you are a visitor in the land of Mongolia. Some friends ask you to
eat with them. What kind of manners do they want you to have? They want you to
give a loud "burp" after you finish eating. Burping will show that you like your
food. In some countries, if you give a loud burp, you are told to say, "Excuse me,
please. "
  In many places people like to eat together. But in some parts of Polynesia, it
is bad manners to be seen eating at all. People show their good manners by
turning their back on others while they eat.
  What are good manners like in an East African town? The people try not to
see you. They are being polite. You may see a friend. He may not see you at all.
If you're polite, you will sit down beside him. You will wait until he finishes
what he is doing. Then he will talk to you.
  Suppose you visit a friend in Arabia. You should walk behind the tents until
you come to his tent. If you pass in front of the other tents, you will be asked into
them. The people will ask you to eat with them. And it is bad manners if  you say
no.
(     )1. Many years ago, children with good  manners kept quiet when their
parents were talking about something.
(     )2. Sometimes good manners in one place don't mean the same in another
place.
(     )3. It is a bad manner that you give a loud  "burp" after you finish eating in
Mongolia.
(     )4. It is bad manners to be seen eating at all in Polynesia.
(     )5. It is good manners that sitting down  beside your friend if he doesn't see
you " and waiting until he finishes what he is doing in  an East African town.
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Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very quickly. But computer injuries slowly.
 You probably know how to ride a bike safely. Now learn to use a computer safely.
Your eyes
 Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be at least 50 centimeters from the screen. Remember to look away from it sometimes. This gives your eyes a rest.
 When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on (反射) the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.
Your hands and wrists (手腕)
  Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows (肘部) at the same height as the keyboard. 3) Stop something and exercise your hands, wrists and fingers in a different way.
Your back
  Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should all be in front of your eyes. Your forearms(前臂), wrists, hands and the upper(上部) part of your legs should all be parallel (平行) to the floor. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and necks.
 Enjoy your computer, but use it safely.
【小题1】A computer screen may injure your eyes if __________.

A.you sit 60 centimeters awayB.you remember to look away
C.your eyes are too close to it  D.the window is on your left or your right
【小题2】 Hand and wrist injuries are caused when you _________.
A.get plenty of exercise  B.move in the same way again and again
C.rest your wrists on something D.keep your elbows as high as the keyboard
【小题3】Your eyes and hands will be safe if __________.
A.you work near a window  B.you often take a rest from working
C.you use a keyboard for a long timeD.the window is behind you
【小题4】It is good for your back and neck if you sit __________.
A.in the right wayB.for many hours
C.with the screen below your eyesD.with your back leaning forward
【小题5】 What would be the best title for the passage?
A.How to protect your eyesB.How to protect your hands and wrists
C.How to use a computer safelyD.How to protect your back

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