阅读理解
Dogs like living with people．A dog can be a best friend．He will do a lot of things for people．
Some dogs help people to look after sheep, others help them to find the lost children．And some of the dogs can help blind(失明的)men or women do things．
Many years ago there was a very good dog．His name was Seeing Eye dog．Now we can see this kind of dogs all over the world(全世界)．They are working for the blind．
The Seeing Eye dog is strong, good and easy to train(训练)．He helps the blind to walk from place(地方)to place．
Before a dog becomes(成为)a Seeing Eye dog, he must go to a training school for about three months．First the dog has to learn to sit or stay when he hears the trainer's call．In his next lesson the dog learns to take his trainer across(穿过)busy streets．
The dog has many things to learn, and in every lesson he must learn to do one thing again and again for many times．
At the end of the training school he must take tests(考试)．When he passes the final test(最后的考试), the Seeing Eye dog is ready to do things by himself．
Now he is ready to help a blind people．The new master(主人)may be a man, a woman, or even(甚至)a child．It takes the dog and his blind master about one month to work and live together．
