Unit4 I have a ball,Lesson 19,Lets sing,Warm-up,Presentation,Just learn,ball,Presentation,Wow! Its big,Presentation,Just learn,doll,Presentation,Wow! Its nice,Presentation,Look, listen and say,What can you see in the picture,What are they talking about,在图片上你能看到什么,他们在谈论什么呢,Presentation,Listen and imitate,Wow! How nice! Look! I have a ball,Look, Kate. I have a doll,Oh, its big,Presentation,I have,Look and say,Show time,Good,Great,Excellent,两人一组，练习对话并表演，其他同学评价,Practice,I have a _,cat,Practice,I
