A. young B. country C. cousin D. mouse
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Computers can injure(傷害)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 happen slowly.
You may 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 more than 50 centimeters from the screen. Don’t forget 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 the screen(反射在屏幕上). 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)as high as the keyboard.
3) Stop sometimes 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 shouldn’t bend(彎曲) your back when you sit. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel(平行) to the floor. If you are sitting for a long time, get up every half an hour and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
Title: How to use a computer safely | ||
Different 1. of your body | Causes(原因) of the injuries | Some 2. of keeping you away from computer injuries |
Your eyes | ◆Too much light can injure your eyes. | ◆Don’t sit too close to a computer screen. ◆Your eyes should be 3. 50 centimeters from the screen. ◆ 4. to look away from the screen sometimes. |
Your 5. and wrists
| ◆You 6. them in the same way hundreds of times. ◆You use a keyboard for a long time. | ◆ 7. your wrists on something. ◆Keep your elbows at the same 8. as the keyboard. ◆Exercise your hands, wrists and fingers in different ways. |
Your back
| ◆You sit for many hours 9. a computer. ◆ You sit in the wrong way. | ◆You should keep your back 10. when you sit. ◆Get up every half an hour if you are sitting for a long time. |
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— Boys and girls, no hand _______ any other tool can be used in the game, _______ you still need to make it work. Are you clear about the rules?
— Yes, sir.
A. and; so B. or; but
C. and; but D. or; so
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---Would you with your parents like ________ Beijing next month?
---Yes, ________.
A. to visit; I’d like
B. visiting; I like it very much
C. visit; I’d like it
D. to visit; I’d love to
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My aunt has ________ 11-year-old son. She loves ________ very much.
A. a; him B. an; him
C. a; his D. an; his
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A. stop B. wrong C. front D. clock
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動詞填空 用所給動詞的正確形式填空:(本大題共5分,每格0.5分)
1.Look! Everyone in our class _______ (have) a new book.
2.Let us _______ (swim) together tomorrow afternoon.
3.Jim with his classmates, ______________ (fly) kites every Sunday.
4.---Can all of you______(swim) well?
---No, only five of us can.
5.My friends and I always have a good time __________ (eat) lunch under the tree.
6.His parents __________ (not be) at home on weekdays.
7.Simon has much time __________ (watch) ball games on TV at weekends.
8.Sandy, _________ (not stay) out too late. It’s bad for you.
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科目:初中英語 來源:2014-2015學(xué)年江蘇無錫玉祁初級中學(xué)七年級上期中英語試卷(解析版) 題型:單項(xiàng)填空
Jack _________ goes out, so he knows a lot about the world outside.
A. seldom B. never
C. sometimes D. often
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科目:初中英語 來源:2014-2015學(xué)年江蘇無錫濱湖九年級上期中英語試卷(解析版) 題型:補(bǔ)充句子
完成句子 按所給的漢語,用英語完成下列句子。
1.Finally, he had no .
2.直到她取得進(jìn)步后她才意識到不放棄是很重要的。
She didn’t realize that never giving up was important ______________.
3.到現(xiàn)在為止,他們還沒有想出一個解決這個問題的好辦法。
So far, they to solve the problem.
4.Sam長大后寧愿當(dāng)醫(yī)生。
Sam when he grows up.
5.她和她的父親被迫躲藏在一個秘密地方。
She and her father in a secret place.
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