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　　Can animals be made to work for p 1 ? Some scientists think that one day animals may be trained (训练)to do a number of simple jobs i 2 of people. They say that at a circus (杂技场), for example, we may see elephants， monkeys, dogs and other animals doing q 3 skillful (熟练的) things. Perhaps you have seen them on the television or in a film. If you watch closely, you may find that the trainer (驯兽员) always g 4 the animal some sugar o 5 a piece of fruit as a reward (报酬). The scientists say that many d 6 animals many be trained to do a lot of simple things if they know they will get a reward f 7 doing that.

　　　　Of course，as we know, dogs can be trained to look after a house，and soldiers in both old and modern times have u 8 geese(鹅) to give warning(警报) by m 9 a lot of noise when an enemy(敌人)comes near. And also it may be possible to train animals to work in families or f 10 .

　　　　参考答案：

　　　　1. people 2. instead 3. quite 4. gives 5. or 6. different 7. for 8. used 9. making 10. farms

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