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，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（显微镜）．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．

根据短文内容，选择正确答案。

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．

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．

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．

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．

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．

Answer 1

1.D

2.A

3.C

4.D

5.A

【解析】

试题分析：这篇短文中作者主要描述了我们致病的原因，并分析了细菌在我们周围无处不在，很容易对我们造成伤害。

1. aren't found only in water. They are found in air and dust.”的描述可以排除C选项。A，B选项明显不符合题意，只有选D，并且根据第二段“It is germs(细菌). Germs are everywhere.”的描述可以确定正确答案。故选D。

2. are very small and you can't find them with your eyes，but you can see them with a microscope.”的描述可知，microscope是显微镜。结合选项可知应选A。

3. are always found in dirty water.”的描述可知，细菌在脏水中随处可见，因此父母不让喝脏水。故选C。

4.

5. Germs may make us ill。

考点：科普类短文阅读。