课前预习 【句型】 11.This is because he can make 72 changesto his shape and size. 这是因为他可以72次更改他的形状和大小。 12. As soon as the TV program came out morethan 30 years, Western children became interested in reading this story. 只要电视节自出来了超过30年，西方的孩子变得兴趣阅读这个故事。