Unit 4,I have a ball.,Lesson 20,Lets learn.,Lets learn,Look! I have a kite.,Wow! How nice!,Wow! How _!,Look! I have a _.,Wow! _!,Look! I _.,_! _!,_! _.,Fly, fly, fly my balloon.,Fly, fly, fly my kite.,Fly, fly, fly very high.,Up, up, up to the sky.,Lets chant.,Homework（家庭作业）1. 读、背诵Lesson20.2. 词kite， balloon ，抄10遍，译1遍。再听写过关。3. 单词717课，抄_遍，译1遍。再听写过关。,Lets chant.,Goodbye!,
