Can animals be made to work for people?…… 还有为什么写这个答案的原因
Can animals be made to work for people?Some scientists think that one day animals may be trained（训练）to do a number of simple jobs i__1__ of people.They say that at a circus（杂技场）,for example,we may see elephants,monkeys,dogs and other animals doing q__2__ skillful（熟练的）things at a circus.
If you watch closely,you may find that the trainer（驯兽员）always g__3__ the animal some sugar or a piece of fruit as a reward（报酬）.The scientists say that many d__4__ animals may be trained to do a lot of simple things if they know they will get a reward f__5__ doing that.
Of course,as we know,dogs can be trained to look after a house,and soldiers in both old and modern times have used geese to give warning by m__6__ a lot of noise when an enemy comes near.And also it may be possible to train animals to work in families or f __7__.
Many blind people have seeing Eye dogs to guide them.But not Flsie Schneider.She has a seeing eye cat called Rhubard!Mrs.Schneider said "At first I had the cat on a ten-foot leash.It would take me to the trash cans and out to the clothesilne.Now,it k__8__ exactly what to do —— even without a leash.Rhubarb guides me d__9__ the stairs." said Mrs.Schneider."It even gives me a little meow if I come too c__10__ to the wall or door."