( A )

　　 Can we make animals work for us? Some scientists think that one day, we can teach animals to do a lot of things for the people. They saw that in a film or on TV, you may see elephants, monkeys, dogs or some other animal doing a lot of things. If you watch carefully, you may find those animals are always given a little food to eat after they have done something. Scientists say that people can teach many different animals to do some of the easy work if they know they will get sth. to eat. We all know elephants can carry large logs(木头), and dogs can look after house. And we can even teach animals to work in factories. In America, for example, people have used apes(猿猴)to help make cars, and scientists think that those large monkeys man, one day, drive trains. Now people are trying to get them to do something just like man.

1.(　 ) People can teach animals to do some easy work if ______.

　　 A. they have enough food to eat　 B. they learn they’ll get something to eat

　　 C. they are as clever as man　　 D. they are sent to animal school

2.(　 ) Elephants can do some heavy work because they _______.

　　 A. eat a lot　 B. are very strong　 C. are quite heavy　 D. have large ears

3.(　 ) You know we can use dogs to _______.

A.　 drive train　 B. help make cars　 C. keep the house safe　 D. drive carry logs

4.(　 ) Scientists are trying to make big monkeys _______.

　　 A. work in factories　　　　　　 B. build houses

　　 C. drive trains　　　　　　　　　 D. drive cars

5.(　 ) ______ can be taught to work for us.

　　 A. Only apes　 B. Tall dogs　　　 C. Large elephants　 D. Many animals

20. He thought out a new idea and wanted to ________.

　　 A. try out it　　　　 B. try on it　　　　 C. try it on　　　　 D. try it out

19. He liked smoking before, but now he has _________.

　　 A. given up it.　　　 B. given it up　　　 C. given in it　　　　 D. given it in

18. If you keep _______, I’m sure you will improve your English.

　　 A. to study hard　　 B. studying hardly　　 C. studying hard　　 D. study

17. I’ll bring _____ dictionary with me.

　　 A. myself　　　　　 B. my own　　　　　 C. her own　　　　 D. his own

16. The teacher made me _____ in front of the class but got Tom _____ back to his seat.

　　 A. stand; go　　　 B. stand; to go　　　 C. standing; going　　　 D. to stand; to go

15. I feel like _______ cold.

　　 A. to catch　　　　 B. to have caught　　　 C. being caught　　　 D. catching

14. They kept ______ the fields ______ they got a good harvest.

　　 A. to water; when　 B. watering; while　　 C. watering; until　　 D. to water; before

13. He began ______ the book in 1960.

　　 A. work on　　　　 B. working on　　　　 C. to work at　　　 D. to work with