It is a rainy day. A train stops at a small station. A man is on the train and he feels hungry(饥饿的). He looks out of the window and sees a shop. A woman is selling cakes in the shop and the cakes look nice. The man wants to buy a cake. but the shop isn't t near the train. The man doesn't want to walk in the rain. Then he sees a boy. The boy is about five years old. He is playing near the window. "Come here. Boy!" says the man, "Do you know how much the cake is?"" Two dollars for one. " says the boy. The man gives the boy four dollars and asks him to buy two cakes. "One is for you and the other is for me," he says to the boy.
After a while (过了一会儿), the boy comes back. He's eating a piece of cake. He gives the man two dollars and a piece (块) of cake. "Sorry, there is only one cake left (剩余). I eat one half of the cake and here is the other half for you," says the boy.