Twenty yuan or ten yuan. --- S: twenty yuan. T: How much is this coat/shirt？ --- S: it's sixty. Boys and girls, you can make your imagine, use this sentence to play with your partner. Understand? So we have 3mins to prepare, let's begin. (表演购物短剧，尽量让学生运用本节课所讲的内容和拓展一些知识。教师先示范，然后学生模仿)

Steps 4 Homework (5mins)

First, teacher should summarizes knowledge about this lesson. Then do homework. (教师带领学生一起总结本节的内容，学了些什么，然后布置作业)

附板书