第二节（共10小题，每小题1.5分，满分15分）

阅读下面短文，给空白处填入一个适当的单词或括号内单词的正确形式。

Can animals be made （　36　）(work) for us? Some scientists think that one day animals may （　37　）(teach) to do a number of simple （　38　）(job).They say that in a film or on TV we may see elephants, or monkeys, dogs, bears, or other animals （　39　）(do) a lot of things. If you watch （　40　）(careful),you may find that those animals are always given something to eat in return for doing them. The scientists say that many different animals may be taught to do a number of simple jobs （　41  ） they know they will get something to eat in return. 

Of course,（　42　 ）we all know, dogs can be used to guard a house, and elephants can be used to do some heavy jobs. And we can also teach animals （　43　）(work) in factories. Apes(猿猴),for example, have been used in America to help make cars. Scientists believe that these large monkeys may （　44　） day get in crops and even （　45　）(drive) trains.