There are three little sheep in the forest(森林). They are white and lovely. They are happy every day. One day, mother sheep goes away, here comes a big bad wolf. He wants to eat the three little sheep. He asks(叫) the sheep to open the door for him. But the sheep are clever(聪明的). They ask the wolf to show(展示) them his hands. They see the wolf's sharp claws(爪子), they don't open the door for the wolf. Then the wolf pulls out (拔掉) his claws. The sheep want to see the wolf's teeth. They see the wolf's big and sharp teeth, they don't open the door for the wolf. Then the wolf pulls out his teeth. Now the wolf has no claws. He has no teeth too. The sheep are not afraid of him. At last, the wolf runs away.