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.

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.

　　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 very small and there could be hundreds of them on a very small thing.

　　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.

A．If things are very 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.

A．Making very very small thing 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.

A．You haven't looked at it carefully.

B．Water can't be drink in this way.

C．There must be lots of germs in it.

D．Water will make you ill.

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.

A．Germs may make us ill.

B．Gem are in dirty water.

C．Don't drink dirty water.

D．Take care of your fingers.

　　Except for a few times, Americans are not big present-givers. There's no exchange of presents among business people, and if one American tries to give another a present, it may look like that he wants to bribe (贿赂) him. Americans have learned that in some other countries people like to give presents to others, but among ourselves we don't see the need for presents.

　　Even friends may never exchange presents. When I go to foreign countries, I try to bring back little things for close friends, but nobody would feel unhappy if I didn't. I don't often remember a friend's birthday, and few people outside of my family remember mine. If someone gave me presents too often, I'd get unpleasant. But a present from a foreigner - that kind from his or her homeland — won't go wrong, except to government employees (政府职员) who can't be given presents.

　　You usually open a present at once and in front of the person who gives it except Christmas and birthday presents. You should only say, "It's so nice. Thanks…" when you get Christmas or birthday presents.

　　You may want to bring a bottle of wine (葡萄酒) or flowers to a dinner party, but you're never asked to. Nobody will mind if you bring wine, but your friend may not use it that evening.

　　At Christmas we often give presents to our family and sometimes our friends. We also give presents to people who have been helpful during the year- doormen, babysitters, housecleaners, newspaper senders— anyone who has often helped us.

(　 )11. What does "close friends" mean in the passage?

　　A. The friends who are very kind.

　　B. The friends who live close to each other.

　　C. The friends who were once classmates.

　　D.　The friends who you like most.

(　 )12. What kind of presents don't Americans usually open in front of the givers?

　　A. The small presents.　　　　　 　 B. Christmas or birthday presents.

　　C.　The expensive presents.　　　　 D.　The presents for dinner party.

(　 )13. Why do Americans also give presents to housecleaners at Christmas?

　　A.　To pay them.　　　　　　　　 B.　To help them.

　　C.　To thank them.　　　　　　 　　 D.　To make them work harder.

(　 )14. Which of the following do you think is right?

　　A. American business people don't want presents because they are rich enough.

　　B. The writer of this passage must be an American.

　　C. Everyone must give presents to one's family and friends at Christmas.

　　D. Government employees can get little presents from a foreigner.

(　 )15. What is the main idea of the passage?

　　A. Present-giving in the United States.

　　B. Customs (习俗) in the United States.

　　C. American people and present-giving.

　　D. When and how to give presents.