Once upon a time there were three little pigs.One day their mother said to them， "You are too big to live here.You need to build your own houses.But make sure that the wolf （狼） can't catch you."
   The first little pig built his house with grass.It was the easiest thing to do.The second little pig built his house with wood.It was a little bit stronger than the grass house.The third little pig built his house with stones （石頭）.It was the strongest but took him a lot of time.
   One day the wolf came and saw the first little pig in his grass house.He pushed （推） down the house and ate the first little pig.
   Then the wolf came to the wood house and he pushed down that house too and ate the second little pig.
   The wolf then came to the house of stones，but he could not push down the stone house.The wolf climbed up to the roof and tried to get in through the chimney （煙囪）.The smart little pig lit a fire and boiled water under it.When the wolf fell down，he fell into the hot water and died （死）.

Three little （1） pigs pigs
The（2） reason reason why they left their mother	They were so big that they couldn't（3） live live with their mother.
The materials they （4） built built their houses	（5） Grass Grass ，（6） wood wood and stones.
The fate （命運） of the first and the （7） second second pigs	They were eaten by the （8） wolf wolf .
The fate of the wolf	The wolf wanted to get in the（9） stone stone house through the chimney.When the wolf fell down，he fell into the hot water and （10） died died .