Unit4 I have a ball,Lesson 21,Lets chant,Fly, fly, fly my balloon. Fly, fly, fly my kite. Fly, fly, fly very high. Up, up, up to the sky,Review,Game,Whats missing,Review,Presentation,Just learn,car,Presentation,Really,Presentation,Just learn,bus,Presentation,Wow! Its super,Presentation,Look and say,Look! What are they talking about,Presentation,Listen and imitate,Really,Lisa, Lisa! I have a new car,Yes. Look here,Wow! Its super,Show time,Good,Great,Excellent,两人一组，练习对话并表演，其他同学评价,Practice,Lets pla
