When you feel sad, tears will come down from your eyes. When you are happy, especially whe

When you feel sad, tears will come down from your eyes. When you are happy, especially when you laugh hard, tears will also come down from your eyes. But tears have a more important job than showing your feelings.
Tears keep your eyes clean and healthy. They wash away dirt and germs(细菌) just like bath. Your eyes also need tears to keep them wet. And eyes must be wet so that they can move smoothly. Your eyes are busy looking here and there all day long. They move quickly from one thing to another. If you didn’t have tears, your eyes couldn’t move, and soon you would be blind.
Maybe you don’t like tears, but your eyes can’t do without them.
【小题1】The story tells us . A．what makes people blindB．why people have tearsC．why people cry when they are sadD．what tears are【小题2】Tears help you by . A．showing how you feelB．making your face cleanC．washing things from your eyesD．making your eyes bright【小题3】If your eyes were not wet, you could not . A．look at things clearlyB．laugh and cryC．keep cleanD．show your feelings【小题4】When you are happy or sad, you may . A．look at things quicklyB．wash away dirt and germsC．have tears in your eyesD．move your eyes quickly【小题5】The sentence “your eyes can’t do without them” means . A．your eyes like having baths very muchB．your eyes like tears very muchC．your eyes can’t work without tearsD．your eyes can’t open without themB

(答案→)B 解析：这篇文章主要讲述了眼泪的功能。它不仅可以帮我们表达情感，我们在悲伤和开心的时候都会流泪。它还是我们眼睛保持干净和看清东西所必需的。【小题1】主旨大意题。这篇文章主要讲述了眼泪的功能，不仅能帮助我们表达情感，也是我们眼睛所必需的，故选B，人我们有眼泪。【小题2】细节理解题。根据文章描述They wash away dirt and germs(细菌) just like bath.眼泪把脏东西和细菌冲走，就像洗澡一样，故选C。【小题3】判断推理题。根据文章描述And eyes must be wet so that they can move smoothly.眼睛需要湿润所以能流畅的移动；而当我们看东西的时候 They move quickly from one thing to another.眼睛总是快速的从一个事物移到另一个事物。从而判断，如果没有眼泪的滋润，眼睛不能清除的看东西，故选C。【小题4】细节理解题。根据文章描述When you feel sad, tears will come down from your eyes. When you are happy, especially when you laugh hard, tears will also come down from your eyes.当你伤心时，眼泪会从你的眼睛流下来。当你高兴时，尤其是你笑得厉害时，眼泪也会流出来。故选C。【小题5】句意猜测题。根据文章内容Maybe you don’t like tears, but your eyes can’t do without them.也许你不喜欢眼泪，但是你的眼睛不能没有它们。所以此句意思是，眼睛如果没有眼泪就不能工作，故选A。

我明天再问问老师，叫他解释下这个问题