Computers can injure(伤害)you. Most other injuries happen Wap版

试题详情及答案解析

Computers can injure(伤害)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(弯曲) 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 【小题1】 of your body	Causes(原因) of the injuries	Some 【小题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 【小题3】 50 centimeters from the screen. ◆ 【小题4】 to look away from the screen sometimes.
Your 【小题5】 and wrists	◆You 【小题6】 them in the same way hundreds of times. ◆You use a keyboard for a long time.	◆ 【小题7】 your wrists on something. ◆Keep your elbows at the same 【小题8】 as the keyboard. ◆Exercise your hands, wrists and fingers in different ways.
Your back	◆You sit for many hours 【小题9】 a computer. ◆You sit in the wrong way.	◆You should keep your back 【小题10】 when you sit. ◆Get up every half an hour if you are sitting for a long time.

答案：【小题1】parts
【小题2】tips/ ways
【小题3】over
【小题4】Remember
【小题5】hands
【小题6】move
【小题7】Rest
【小题8】height
【小题9】before
【小题10】straight

试题分析：这篇短文主要介绍了电脑伤害不是突然发生的而是慢慢形成的，所以我们要学会安全地使用电脑。
【小题1】根据表格的内容，眼睛，背等可知标题是身体的不同部位，故填parts
【小题2】根据第三列的内容可知是使你远离电脑伤害的方法，故填tips/ ways
【小题3】根据Your eyes should be more than 50 centimeters from the screen.，more than =over，超过，故填over
【小题4】根据Don’t forget to look away from it sometimes.，don’t forget,不要忘记，故填Remember
【小题5】根据后面的伤害原因及方法，及Your hands and wrists(手腕)，故填hands
【小题6】根据Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. ，故填move
【小题7】根据建议Rest your wrists on something 故填Rest
【小题8】根据建议Keep your elbows(肘)as high as the keyboard. 故填height
【小题9】根据Some people sit for many hours in front of a computer.， in front of 在···前面，故填before
【小题10】根据So you shouldn’t bend(弯曲) your back when you sit.可知要坐直，故填straight
考点：健康保健类短文。

2015学年江苏无锡崇安区八年级上期中英语试卷（带解析）