Question

  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,and you stay in bed,feeling very sad.

   What makes us ill? They’re germs (细菌) . Germs are everywhere. They are very small and you can't find them with your eyes,but you can find them with a microscope. They are very small and there could be lots of them on every small thing.

   Germs are always found in dirty water. When we look at dirty water under microscope,we will see them in it. So your our parents will not let you drink dirty water.

   Germs aren’t found only in water. They are found in the air and dust (灰尘) . If you cut your finger,and if some of the dust from the floor goes into the cut,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.

1. What is a microscope used for?

2. Why don't your parents let you drink dirty water?

3. Where are germs?

4. What5s the main idea of the passage?

Answer 1

阅读提示:本文是说明文。讲述了细菌的相关知识:细菌的危害、生存环境等。

1. Making very small things look much bigger.推理判断题。由第 二段可知细菌非常微小;第三段把脏水放在显微镜下可以看到细 菌。说明显微镜的作用是放大微小物体。

2. Because there must be lots of germs in it.细节理解题。由第三 段可知，水里有很多细菌，因此父母不让我们喝脏水。

3. They are everywhere. 细节理解题。由第二段第三句“Germs are everywhere. ”可知细菌到处都是。

4. Germs may make us ill. 标题大意题。第二段起承上启下的作 用，然后下文以此为话题展开说明。