Question

【題目】Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bicycle and break your arm, it happens very quickly. But computer injuries happen slowly.

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(反射) on the screen. If the windows 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 times, follow these three rules: 1) Rest your wrists on something. 2) Keep your elbows at the same height 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 a 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 be in front of your eyes. Your forearms(前臂), wrists and hands should all be parallel to(與......平衡) the floor. 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】The underlined word “injure” means “ .”

A. 保護 B. 影響 C. 傷害 D. 幫助

【2】Your eyes should .

A. be close to the screen B. be less than 50 centimeters from the screen

C. face the window D. be more than 50 centimeters from the screen

【3】To protect your hands and wrists you should .

A. Keep your elbows above the height of the keyboard

B. Keep your wrists hanging without touching anything

C. Keep your elbows below the height of the keyboard

D. Stop playing computer sometimes and exercise

【4】Which of the following is true?

A. Sitting wrongly is only bad for your wrists and fingers.

B. Your eyes should be at the same height as the top part of the screen.

C. You should have a rest every two hours.

D. You should sit in front of a screen and play computer for a long time.

【5】Which is the best title of this passage?

A. How to Use a computer Safely. B. How to Play Computer Games.

C. How to Protect Your Eyes. D. Computers Are very Harmful.

Answer 1

【答案】

【1】C

【2】D

【3】D

【4】B

【5】A

【解析】文章大意：這篇短文主要介紹了電腦傷害不是突然發(fā)生的而是慢慢形成的，所以我們要學(xué)會安全地使用電腦。文章介紹了電腦對眼睛、手及手腕、背部的傷害以及具體防護辦法。

【1】細節(jié)理解題。根據(jù)下文But computer injuries happen slowly.但是電腦的傷害是慢慢發(fā)生的，可知這里是說：電腦可以“傷害”你，所以“injure”意思是“傷害”，故答案選C。

【2】細節(jié)理解題。根據(jù)下文Your eyes should be at least 50 centimeters from the screen.可知，你的眼睛應(yīng)該距離屏幕至少50厘米，故答案選D。

【3】細節(jié)理解題。根據(jù)下文Stop sometimes and exercise your hands, wrists and fingers in a different way.可知，為了保護你的手和手腕，你應(yīng)該停止玩電腦并鍛煉你的手和手腕，結(jié)合選項，故答案選D。

【4】推理判斷題。根據(jù)If you sit in a wrong way, you can injure your back or your neck.可知，如果你的坐姿錯誤，就會傷到背部或脖子，而不是對手腕和手指造成傷害，所以A選項錯誤；根據(jù)The top part of the screen should be in front of your eyes.可知，電腦屏幕的上部應(yīng)該在你的眼睛前面，即眼睛應(yīng)該和電腦屏幕的頂端高度相同，所以B選項正確；根據(jù)Remember to look away from it sometimes. This gives your eyes a rest.和If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.可知要不時的把目光移開屏幕讓眼睛休息，如果坐的時間長了要每30分鐘站起來活動，而不是每兩個小時休息一次，所以C選項錯誤；根據(jù)If you are sitting for a long time, get up every 30 minutes and exercise your arms, legs and neck.可知，如果你坐了好長時間，應(yīng)該每30分鐘站起來活動你的胳膊、腿和脖子，而不是長時間的坐在屏幕前玩電腦，所以D選項錯誤。本題問哪一項是正確的，故答案選B。

【5】主旨大意題。根據(jù)文章中介紹了電腦對眼睛、手及手腕、背部的傷害以及具體防護辦法，以及最后的總結(jié)Enjoy your computer, but use it safely.享受你的電腦，但要安全使用；可知本文主要告訴我們?nèi)绾伟踩�使用電腦，結(jié)合選項，故答案選A。