题目内容：

Can animals do work for us? Some scientists think that animals may do a lot of jobs. They say that we may see many elephants, monkeys, dogs, bears and other animals do a lot of things. Animals can get something to eat if(如果) they do some work for people.

Some scientists say that many different animals may do lots of jobs if they know they will get something to eat. Of course, dogs can guard a house, and elephants can do some heavy jobs. And we can also teach animals to work in factories. In America apes(猿) can help people make cars. Scientists believe that these big monkeys may drive cars.

1.Many different animals may do many jobs if ___.

A. they can go to the wild. (野外)

B. they learn they can get something to eat

C they have a good place to live in

D. they are happy

2.___ can work for us.

A. Only a few animals     B. Lots of animals

C  Few animals         D. No animals

3.What kind of animals can guard(看护) a house?

A．A dog            B．An elephant        C．An ape           D．A monkey

4.What jobs can elephants do?

A．Doing heavy jobs.                       B．Guarding a house

C．Making cars                            D．Driving cars

5.Which of the following is true?

A．In China apes can help people make cars.

B．Scientists believe that monkeys may play the piano

C．All the animal can do work.

D．Apes may drive cars