摘要:Different people have different hobbies.I have 11 friends.They are Kangkang.Michael.Jane and Linda.Kangkang likes l2 soccer.He thinks sports can make people strong and l3 He often plays soccer with his friends l4 class.Michael loves collecting stamps.He has about two thousand different stamps.He learns l5 about history.famous people and different places from the stamps.Jane loves listening to 16 .She has a nice NP3 player.It’s a present l7 her father she thinks music earl make l8 more relaxed and happier.And she wants to be a l9 0ne day.Linda has lots of books at home.She enjoys 20 .She thinks books can give her all kinds of knowledge. 11.A.two B.three C.four D.five 12.A.play B.plays C.played D.playing 13.A.healthy B.health C.handsome D.simple 14.A.in B.after C.before D.between 15.A.a lot B.lots of C.a little D.a few 16.A.music B.the radio C.stories D.player 17.A.to B.with C.from D.for 18.A.her B.she C.hers D.herself 19.A.teacher B.musician C.worker D.dancer 20.A.writing B.singing C.playing D.reading

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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.

1.A computer screen may injure your eyes if __________.

  A. you sit 60 centimeters away    B. you remember to look away

  C. your eyes are too close to it    D. the window is on your left or your right 

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

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 time  D. the window is behind you

4.It is good for your back and neck if you sit __________.

  A. in the right way                           B. for many hours

  C. with the screen below your eyes       D. with your back leaning forward

5. What would be the best title for the passage?

  A. How to protect your eyes            B. How to protect your hands and wrists

  C. How to use a computer safely       D. How to protect your back

 

查看习题详情和答案>>

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.

1.A computer screen may injure your eyes if __________.

A.you sit 60 centimeters away

B.you remember to look away

C.your eyes are too close to it

D.the window is on your left or your right

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

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 time

D.the window is behind you

4.It is good for your back and neck if you sit __________.

A.in the right way

B.for many hours

C.with the screen below your eyes

D.with your back leaning forward

5.What would be the best title for the passage?

A.How to protect your eyes

B.How to protect your hands and wrists

C.How to use a computer safely

D.How to protect your back

 

查看习题详情和答案>>

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