Question

【题目】Computers can injure you. Most other injuries happen suddenly. For example, if you

___ a bike and break your arms, it happens very ______ . But computer injuries happen slowly. You ______ know how to ride a bike safely. Now learn to use a computer safely.

Your eyes _____ light can injure your eyes, _____ never sit too close to a computer screen. Your eyes should be _______ 50 centimeters ______ the screen.______ remember to look away from it. This gives your eyes a rest. When you use a computer, the window ______ be on your left or your right. If it is behind you, the light will reflect (反射) on the screen. Ifthe window is in front of you, the sun and the screen will_______ 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 _______ times. Ifyou use a keyboard for a long time,_____these three rules: 1) Rest your wrists on something. 2) Keep your elbows (肘) 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. Ifyou 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 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. Ifyou are sitting for a long time, get up ____ 30 minutes and ______ your arms, legs and neck._______ your computer, but use it safely.

【1】A. fall over B. fall on C. fall off D. fall onto

【2】A. much quickly B. regularly C. slowly D. quickly

【3】A. able B. maybe C. probably D. can

【4】A. Too many B. Too much C. Much too D. Many more

【5】A. so B. because C. but D. when

【6】A. at last B. at most C. at least D. less than

【7】A. to B. from C. on D. away

【8】A. Sometime B. Some time C. Some times D. Sometimes

【9】A. can B. may C. might D. should

【10】A. both B. never C. all D. neither

【11】A. hundred of B. hundreds C. hundreds of D. two hundreds

【12】A. follow B. work C. copy D. write

【13】A. one B. every C. every of D. once

【14】A. need B. exercise C. control D. shake

【15】A. Enjoy B. Use C. Protect D. Keep

Answer 1

【答案】

【1】C

【2】D

【3】C

【4】B

【5】A

【6】C

【7】B

【8】D

【9】D

【10】A

【11】C

【12】A

【13】B

【14】B

【15】A

【解析】本篇文章难度适中，主要讲述电脑对我们的伤害以及我们应该如何预防。

【1】句意“如果你从自行车上摔下来，伤了你的胳膊，这个发生得很快”。A.跌倒；B.落到；C.摔下；D.落在……上。根据句意，故选C。

【2】句意“如果你从自行车上摔下来，伤了你的胳膊，这个发生地很快”。B.有规律的；C.慢的；D.快的。根据下文But computer injuries happen slowly可知，表示对比，故选D。

【3】句意“你可能知道如何安全地骑自行车”。A.能，常与be able to连用；B.可能，常位于句首；C.可能；D.能。根据句意，故选C。

【4】句意“你的眼睛，太多的光会伤害你的眼睛，所以不要离电脑屏幕太近”。A.too many+可数名词复数；B.too much+不可数名词；C.much too+形容词。根据句意，light为不可数名词，故选B。

【5】句意“你的眼睛，太多的光会伤害你的眼睛，所以不要离电脑屏幕太近”。前后为因果关系，故选A。

【6】句意“你的眼睛至少离屏幕50厘米”。A.最后；B.至多；C.少于；D.少于。根据句意，故选C。

【7】句意“你的眼睛至少离屏幕50厘米”。from从……。根据句意，故选B。

【8】句意“有时，记得把目光从电脑屏幕移开”。A.sometime指某一个不明确的时间，用过去时或将来时；B.some time某段时间；C.几次；D.有时。根据句意，故选D。

【9】句意“在使用电脑时，窗户应该在你的左边或右边”。A.能；B.可能；C.可能；D.应该。根据句意，故选D。

【10】句意“如果窗户在你的前面，太阳光和屏幕的光都会反射到你的眼睛里”。A.两者都；B.从不；C.三者或三者以上都；D.两者都不。根据句意，指的是两者，故选A。

【11】句意“手和手腕的伤害也可能发生，因为手和手腕以相同的方式移动成百上千次”。若hundred前有数字时，hundred不加s。若hundred前没有数字，但后有of时，hundred后加s。根据句意，故选C。

【12】句意“如果你使用键盘很长时间，要遵循一下三个规则”。A.遵守；B.工作；C.复制；D.写。根据句意，故选A。

【13】句意“如果你坐了很长时间，每30分钟起来一下，运动一下你的胳膊、腿和脖子”。A.一个；B.每；D.一次。every 通常不能用于复数名词前，但若复数名词前有基数词或few的修饰，则也可用every修饰，表示“每(隔)……”根据句意，故选B。

【14】句意“如果你坐了很长时间，每30分钟起来一下，运动一下你的胳膊、腿和脖子”。A.需要；B.锻炼；C.控制；D.摇晃。根据句意，故选B。

【15】句意“享受你的电脑，但是要安全的使用他”。A.享受；B.使用；C.保护；D.保持。根据句意，故选A。