摘要： (让学生找出对话中的新语法modal verb + be + P.P..进行操练.) T: We have learned “is / are+P.P. and “was /were+P.P. . Please find out sentences with modal verb + be + P.P.. (教师强调带有情态动词的被动语态结构.) T: Boys and girls, I’ll say a sentence in active voice. You change it into passive voice, OK? Ss: OK. T: We should clean our classroom every day. Ss: Our classroom should be cleaned by us every day. T: We must finish our homework on time. Ss: Our homework must be finished on time. T: I may put my book in your bag. Ss: My book may be put in your bag. T: Excellent. You did a good job. Step 3 Consolidation 第三步 巩固

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