Question

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 happen 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 (厘米) 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 (反射) on the screen. If the window is in front of you, the sun and the screen will both shine into your eyes.

Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times. If you use a keyboard for a long time, follow this rule: Stop sometimes and exercise your hands and fingers in different ways.

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 and your neck. So you should sit with your back straight. The top part of the screen should be in front of your eyes. If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.

Enjoy your computer, but use it safely.

1.How many kinds of computer injuries are mentioned in this passage?

A. One. B. Two C. Three. D. Four.

2.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 right

3.Your eyes and hands will be safe if _________.

A. you work near a window

B. you often take rests from working

C. you use a keyboard for a long time

D. the window is behind you

4.Which sentence is NOT true according to this passage?

A. You should sit with your back straight while you work on a computer.

B. Staying in front of a computer too long may injure your eyes.

C. When you work on a computer, your hands almost move in the same way.

D. The writer thinks that computer is bad for your health.

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

A. How to protect your eyes

B. How to protect your hands

C. How to use a computer safely

D. How to protect your back

 

Answer 1

1.C

2.C

3.B

4.D

5.C

【解析】

試題分析：本文指出電腦可以傷害你。大多數(shù)其他的傷病是突然發(fā)生的，但是電腦傷害的發(fā)生是緩慢的。并且告訴人們使用電腦時如何保護(hù)自己的一些方法

1.細(xì)節(jié)理解題。根據(jù)第三段提到Y(jié)our eyes--Too much light can injure your eyes, so never sit too close to a computer screen還有第五段Your hands--Hand injuries can happen because the hands are moved in the same way hundreds of times還有第六段提到Y(jié)our back--Some people sit for many hours in front of a computer.電腦會傷害你的眼，手還背部，故選C項。

2.細(xì)節(jié)理解題，根據(jù)文中語句“Too much light can injure your eyes, so never sit too close to a computer screen.”理解可知強光會傷害你的眼睛，不要做得太近離屏幕，故選C項。

3.細(xì)節(jié)理解題。根據(jù)短文描述Remember to look away from it sometimes. This gives your eyes a rest.,可知工作中時常的休息,對眼睛和手來說是安全的,故選B

4. 細(xì)節(jié)理解題。根據(jù)最后一段提到Enjoy your computer, but use it safely.享受你的電腦，但要正確的運用，可知并不是說電腦對你的健康有壞處，而是講合理應(yīng)用，故選D項。

5.主旨大意。這篇短文主要描述了使用電腦過程中的一些安全問題,故選C,如何安全的使用電腦。

考點：健康類閱讀。