There is a little egg on the leaf(树叶) in the evening. On Sunday morning, a little and hungry caterpillar (毛毛虫) comes out of the egg. He is so hungry. He looks for food everywhere. On Monday, he eats a few apples. On Tuesday, he eats some oranges. On Wednesday, he eats some pears. On Thursday, he eats some strawberries. On Friday, he eats some watermelons. On Saturday, he eats some sandwiches. He eats a fresh leaf on Sunday, and then he feels better(更好的). Now he becomes a big and fat caterpillar. He builds a small cocoon(茧)and sleeps(睡觉) in it for two weeks. After that, he comes out of the cocoon and becomes(变成) a beautiful butterfly(蝴蝶).