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Can animals be made to work for us? Some scientists think that one day animals may be taught to do a number of simple jobs. They say that in a film or on TV, we may see elephants, monkeys, dogs, bears, or other animals doing a lot of things. If you watch carefully, you may find that those animals are always given something to eat in return (回报) for doing them. The scientists say that many different animals may be taught to do a number of simple jobs if they will get something in return. Of course, as we 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 to work in factories. For example, apes (猿) have been used in America to help make cars, and scientists believe that these large apes may get in crops and even drive trains one day.
1．Which work may animals be taught to do? (
)
| A．Teach English. | B．Write an article. | C．Clean the street. |
2．How many animals are mentioned (提及) in the passage? (
)
3．Many different animals may be taught to do some simple jobs if ________. (
)
| A．they have enough food to eat |
| B．they get something to eat in return after doing them |
| C．they are sent to school |
4．_______ can be trained for us. (
)
| A．Many animals | B．The small animals | C．All of animals |
5．Apes have been used to help _________. (
)
| A．make cars | B．get in crops | C．drive cars |
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