Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fa

Computers can injure (伤害) you. Most other injuries happen suddenly. For example, if you fall over a bike and break your arms, it happens very . But computer injuries happen slowly. You probably 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 50centimeters（厘米）on 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 on（反射）the screen. If the 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. Hundreds of times. If you 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. If you 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. If you are sitting for a long time, get up every 30 minutes and your arms, legs and neck. your computer, but use it safely.
【小题1】A．much quicklyB．fasterC．slowlyD．quickly【小题2】A．Too manyB．Too much C．Much too D．Many more【小题3】A．soB．becauseC．butD．when【小题4】A．at lastB．at mostC．at leastD．less than【小题5】A．SometimeB．Some timeC．Some timesD．Sometimes【小题6】A．can B．mayC．mustD．should【小题7】A．bothB．neverC．allD．neither【小题8】A．followB．workC．copyD．write【小题9】A．needB．exercise C．walkD．shake【小题10】A．EnjoyB．WatchC．ProtectD．KeepD

(答案→)D 解析：短文大意：本文指出电脑可以伤害你。大多数其他的伤病是突然发生的，但是电脑伤害的发生是缓慢的。并且告诉人们使用电脑时如何保护自己的一些方法。【小题1】考查副词及语境理解。句意：它很快就会发生。 faster更快； slowly 慢慢地；quickly迅速地。much 不可以修饰副词原级quickly。 结合下句But computer injuries happen slowly 可推知此句是说它很快就会发生。所以选D。【小题2】考查短语及语境理解。句意：太多的光可以伤害你的眼睛。Too many太多；Too much太多； Much too太；Many more更多的。根据light不可数即可知道选B。【小题3】考查连词及语境理解。句意：所以不要坐得太靠近电脑屏幕。so所以；because因为；but 但是；when当…的时候。根据上句light can injure your eyes可知此处该用连词so。故选 A。【小题4】考查短语及语境理解。句意：你的眼睛应该至少离屏幕50厘米。at last最后； at most adv.至多， 最多，充其量； at least至少； less than 不到。根据上句never sit too close to a computer screen 可推知此处选C。【小题5】考查副词及语境理解。句意：记得有时要远看。Sometime 在某个时候；Some time一些时间；Some times 几次； Sometimes有时。故选 D。【小题6】考查情态动词及语境理解。句意：当你使用电脑,窗口应该在你的左边或右边。can能，会； may可以；must 必须；should应该。根据后两句If it is behind you, the light will reflect on（反射）the screen. If the window is in front of you, the sun and the screen will shine into your eyes. 可推知窗口应该在你的左边或右边，所以选 D。【小题7】考查形容词及语境理解。句意：如果窗口是在你的面前,太阳和屏幕都将照耀到你的眼睛。both两者都； never从不； all都，全部； neither一个也不。 根据主句主语the sun and the screen 可知选A。【小题8】考查动词及语境理解。句意：如果你使用一个键盘很长一段时间,要遵循以下三个规则。follow跟随，遵循 work 工作；copy 抄写；write写。故选A。【小题9】考查动词及语境理解。句意：每30分钟应站起来且活动你的手臂、腿和脖子。Need需要；exercise锻炼，运动；walk步行；shake摇动。根据句意结合语境可知选B。【小题10】考查动词及语境理解。句意：享受你的电脑,。Enjoy欣赏，享受； Watch 观看；Protect保护；Keep保持。根据后文but use it safely可推知此句是说享受你的电脑，所以选A。

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