A rich man was riding along the road and saw an old man digging in his garden.On the ground lay a young tree，ready to be planted.The rich man called out and asked， "What kind of tree are you planting？"
   "A fig（無花果）tree，sir."He said.
   "A fig tree？" The rich man was surprised，"Why？May I ask how old you are？"
   "I am ninety years old."
   "What!"Shouted the rich man，"You're ninety.You are planting a very young tree now and it'll take years to give fruit.You certainly can't get fruit from this tree."The old man looked around the garden.Then he said with a smile，"Tell me，sir.Did you eat figs when you were a boy？""Sure，"the man did not know why he asked this. "Then tell me this，"he said，"Who planted the fig trees？""I don't know.""You see，sir，" went on the old man，"Our forefathers （祖先）planted trees for us to enjoy and I am doing the same for the people after me."
   The rich man was quiet and said，"You are right.We should do some things for the people after us.Thank you very much."Then he rode away.
（1）What kind of tree was the old man going to plant？

A fig tree.

A fig tree.

（2）How old is the old man？

He is ninety years old.

He is ninety years old.

（3）Did the rich man eat figs when he was a boy？

Yes，he did.

Yes，he did.

（4）Who did the old man plant the tree for？

He planted trees for the people after him.

He planted trees for the people after him.

（5）What can we learn from the old man？

We should do some things for the people after us.

We should do some things for the people after us.