阅读理解。5y;W-j4i-[7i2l/R.c1L7A
Can Animal be Made to Work for Us?5y;W-j4i-[7i2l/R.c1L7A
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 for doing that. The scientists say that many different animals may be taught to do a number of simple jobs if they know they will get something to eat in return.5y;W-j4i-[7i2l/R.c1L7A
Of course, as we know, dogs can be used to guard a house, and elephant can be used to do some heavy jobs. And we can also teach animal to work in factories. Apes（猿猴）, for example, have been used in America to help make cars and scientists believe that these large monkeys may one day get in crops and even drive trains.5y;W-j4i-[7i2l/R.c1L7A
3h7p9k'X*F)B.Y2R7s 1. Elephant can be used to do some heavy jobs because ____.5y;W-j4i-[7i2l/R.c1L7A
A. they can eat a lot5y;W-j4i-[7i2l/R.c1L7A
B. they are very heavy, too5y;W-j4i-[7i2l/R.c1L7A
C. they are very strong5y;W-j4i-[7i2l/R.c1L7A
3a(S(|)k*I 2. Dogs can be used to guard a house for his host because ____.5y;W-j4i-[7i2l/R.c1L7A
A. they are good at running5y;W-j4i-[7i2l/R.c1L7A
B. they are very kind and friendly to people5y;W-j4i-[7i2l/R.c1L7A
C. they are brave enough to get the stranger（陌生人）and thieves away from the house5y;W-j4i-[7i2l/R.c1L7A
;L/^/p-M5O:x'b5S5@;J5F6Z:K 3. Many different animals may be taught to do some simple jobs if ____.5y;W-j4i-[7i2l/R.c1L7A
A. they have enough food to eat5y;W-j4i-[7i2l/R.c1L7A
B. they learn they will get something to eat in return after doing that5y;W-j4i-[7i2l/R.c1L7A
C. if they are sent to school5y;W-j4i-[7i2l/R.c1L7A
3T+H'K7m3~2j(O9i 4. ____ can be train to work for us.5y;W-j4i-[7i2l/R.c1L7A
A. Only a few animals5y;W-j4i-[7i2l/R.c1L7A
B. Quite a few animals5y;W-j4i-[7i2l/R.c1L7A
C. Few animals5y;W-j4i-[7i2l/R.c1L7A
:H2H'y;t9R1u;O 5. Many scientists are working hard to ____.5y;W-j4i-[7i2l/R.c1L7A
A. make monkeys get in crops and drive trains5y;W-j4i-[7i2l/R.c1L7A
B. make monkeys guard house like dogs5y;W-j4i-[7i2l/R.c1L7A
C. make bears get in crops5y;W-j4i-[7i2l/R.c1L7A