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1、1UnitUnit 2 2 LearningLearning fromfrom HelenHelen KellerKeller GrammarGrammar章节：Book2 Unit2 课时： 1 课题名称Unit2 GrammarModal Verbs () Modal Verb + have done三维目标1. Students get to know the structures of modal verb + have done.2. Students can use modal verb + have done in their daily life.3. Students can
2、 summarize the grammatical phenomenon while learning English.重点目标1.Understand the definition of modal verb + have done.2.Master the usage. 难点目标Apply modal verb + have done导入示标Modal Verb + have done目标三导StepStep 1.1. LearningLearning The lights are off in their room.B: Where have they gone?A: They mig
3、ht have gone to the cinema.4) A: Heres a doll for your daughter.B: Thank you so much. Its beautiful. But you neednt have bought it. You have bought so many for her.【ThinkingThinking】What is the rule?_ _ 表示对过去事情的肯定推测，译成“一定做过某事” ，该结构只用于肯定句。 _ _ 表示对过去事情的否定推测，译成“不可能做过某事” 。_ _ 表示对过去行为的怀疑，用于疑问句，译成“可能做过吗？”
4、 。_ _ 是虚拟语气，表示对过去事情的假设，意思是本来能够做某事而没有做。_ _ 对发生过的事情的推测，意思是“可能已经”或“也许已经” ，用于肯定句。 _ _ 意思是“本来应该做某事，而实际没做。 ” _ _ 表示本来不应表示本来需要做某事而没有做。 “_ _ 该做某事，而实际做了。含有指责对方或自责的含意。 _ _ 表示“本来不需要做某事而做了” 。StepStep 2.2. LearningLearning it was quite cheap.John: Really? Well, Mary, I must say it suits you very much. What a pit
5、y we men cant wear 9_(beauty) sweaters!Mary: Never mind. Lets go and buy one like it to send to your sister Linda in America.John: Its very kind of you, Mary. Im really thinking of 10 _ (buy) her a present.keys：1.better;2. a; 3.anyway;4. too; 5. caught; 6. hot; 7. why; 8. must have cost; 9. beautiful; 10. buying反思总结1.知识建构2.能力提高3.课堂体验课后练习Exercise bookPage21
