5、uctions.Listentothetape,finish2a,2b.反复练习besupposedto和should的用法。九Groupwork Ask twostudents to read the conversati-on to the class.Point out the mistakes in Activity 2a and the sentences in Activity 2b.DiscussandreportthemistakesthatMariamade.培养学生小组合作的能力。十、Practice教师出示习题,引导学生找出答案。认真思考,找出最佳答案。检测对