Question

　　Can animals be made to work for us? Some scientists think that one day animals may be taught to do a lot of simple jobs. They say that in a film or on TV we may see elephants, monkeys, dogs 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 for doing them. The scientists say that many different animals may be taught to do lots of simple jobs if they know they will get something to eat 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. Apes（猿猴）, for example, have been used in America to help make cars, and scientists are sure that these large monkeys may one day get in crops and even drive trains.

(1)Animals can do things in the film because they are ________.

[　　]

A．afraid

B．taught to

C．used

D．asked to

(2)________ for a dog to guard the house.

[　　]

A．It's easy	B．It's hard
C．It's a problem	D．It's difficult

(3)After learning the text, we know if we teach some different animals to do some work they can _______.

[　　]

A．never learn to do them	B．do all kinds of things
C．do some kinds of work	D．do lots of difficult jobs

(4)Which is the cleverest animal?

[　　]

A．A dog.	B．An ape.
C．The writer doesn't tell us that.	D．An elephant.

Answer 1

答案：B;A;C;C
解析：

(1)由第一段第二句“Some scientists think that one day animals may be taught to do a 1ot of simple jobs.”可知。