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    Have you ever been ill? When you are ill，you must be unhappy because your body becomes hot，and there are pains all over your body. You don't want to work，you stay in bed，feeling very sad.
    　　What makes us ill? It is germs(细菌). Germs are everywhere. They are very small and you can't find them with your eyes，but you can see them with a microscope. They are very small and there could be hundreds of them on a very small thing.
    　　Germs are always found in dirty water. When we look at dirty water under the microscope，we shall see them in it. So your father and mother will not let you drink dirty water. 
    　　Germs aren't found only in water. They are found in air and dust. If you cut your finger，if some of the dust from the floor goes into the cut(割开处)，some of the germs would go into your finger. Your finger would become big and red，and you will have much pain in it. Sometimes the germs would go into all of your body，and you would have pain everywhere.
    小题1:Which of the following is TRUE?
    A．If things are very small，they are germs.
    B．If things can't be seen，they must be germs.
    C．Germs are only in dirty water.
    D．Germs are everywhere around us.
    小题2:What is a microscope used for?
    A．Making very small things look much bigger.
    B．Making very big things look much smaller.
    C．Helping you read some newspapers.
    D．Helping you if you can't see things clearly.
    小题3:Why don't your parents let you drink dirty water?
    A．You haven't looked at it carefully.　B．Water can't be drunk in this way.
    C．There must be lots of germs in it.　D．Water will make you ill.
    小题4:Which of the following is NOT true?
    A．Germs can be found both in water and in the air.
    B．Germs can go into your finger if it is cut.
    C．If your temperature is not OK，there must be germs in your body.
    D．If your finger isn't cut，there aren't any germs on it.
    小题5:What's the main idea of the passage?
    A．Germs may make us ill.　　　　B．Germs are in dirty water.
    C．Don't drink dirty water.　　　　 D．Take care of your fingers.

    小题1:D
    小题2:A
    小题3:C
    小题4:D
    小题5:A

    试题分析：短文大意：这篇短文主要讲述了细菌在我们周围无处不在，当我们皮肤受伤时，细菌就会借机侵害我们的身体。
    小题1:细节理解题。根据Germs are everywhere.描述，可知细菌在我们周围无处不在。故选D。
    小题2:推理判断题。根据They are very small and you can't find them with your eyes，but you can see them with a microscope.描述，可知显微镜能使很小的东西看起来更大。故选A。
    小题3:细节理解题。根据短文第三段描述，可知父母不让我们和脏水是因为里面的细菌很多。故选C。
    小题4:细节理解题，根据短文最后一段If you cut your finger，if some of the dust from the floor goes into the cut(割开处)，some of the germs would go into your finger.描述，可知在你的手受伤之前，手指上就已经有细菌了。故选D。
    小题5:主旨大意题。阅读短文可知本文主要讲述了细菌对于我们身体的伤害。故选A。
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