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1、 Unit 8 It must belong to Carla.Section A 3a-4c导学案period 2学习目标 1. 掌握情态动词must, might, could, cant的用法；2. 学会用情态动词表达能力、客观可能性以及请求、允许、猜测和征求对方的意见。3.熟练掌握下列短语： nervous or worried_ area where people live _young people _animal like a very large dog _person in the next house _person who makes noise _4.掌握下列句型：A:
2、 Whose volleyball is this?B: It must be Carlas .She loves volleyball.A: Whose hair band is this?B: It could be Meis hair band ,or it might belong to Linda. They both have long hair.A: What did you see that night ?B: Im not sure , but it cant be a dog. It was bigger. I think it might be a bear or a w
3、olf.学习重点 了解电影的种类及对不同种类电影的看法及重点词汇在定语从句的运用。 学习难点 学会用情态动词表达能力、客观可能性以及请求、允许、猜测和征求对方的意见。导学过程一新课预习译一译，读一读，记一记nervous or worried_ area where people live _young people _animal like a very large dog _person in the next house _person who makes noise _二情境导入 用PPT播放3a的听力，让学生获得一个粗浅的认识，从而激发学生的兴趣。三 合作探究 （一）初读 3a这篇文
4、章，了解大意。(二) 小组合作阅读3a ,讨论，交流不理解的句子，完成3a提出的问题。（三）熟读文章，回答 3b 提出的问题。师生讨论答案。 （四） 再次详读这篇文章，思考下列短语的意思，完成任务3c。（五）翻译并理解 Grammar focus，观察，分析，归纳本单元重点句型，进一步向学生讲解本单元的目标语言。（六）巩固所学的Grammar focus的知识，小组合作完成 4a 4b ,并讨论核对答案。四点播总结情态动词表推测情态动词的用法有很多，表推测的用法更为重要。表推测的情态动词有must,can/could, may/might等，情态动词表推测可以分为以下几种情况：1.must用在
5、肯定句中，表示肯定推测，意为“一定”。（1）must+do 表示对现在的状态或情况的肯定推测。The book must belong to Carla.（2）must+be doing 表小对现在正在进行的情况的肯定推测。They must be making a movie now.（3）must+have done 表示对过去情况的肯定推测。The road is wet. It must have rained last night.2.may/might/could+do 表示“可能”的推测。此时，might, could不是过去式，而是表示委婉的语气。这三个词用于肯定推测时，意为“
6、可能”；用于否定推测时，may not和might not 意为“可能不，也许不”；而could not 意为“不可能。”（1）may/might/could+do 表示对现在的状态或情况的可能性的推测。This word might not mean“worried”.第3/4页 （2）may/might/could+be doing表示对现在正在进行的情况的可能性的推测。He could be running for exercise.（3）may/might/could+have done表示对过去的情况的可能性的推测。Miss Li might have told your paren
7、ts what had happened.3.cant 表推测，意为“不可能，一定不是”。cant +do 表示对现在的状态或情况作否定推测cant+be doing 表示对正在进行的情况作否定推测。cant +have done 表示对过去的情况作否定推测。五 训练反馈 一、单项选择) 1. -What is behind that tree? -There must be a dog _ beside it. A. sit B. sat C. to sit D. sitting( ) 2. This shirt _ be Li Leis. It is too big for him. A.
8、 cant B. must C. could D. might( ) 3. He _ be in the garden. He must be in the room. A. cant B. mustnt C. should D. may not( ) 4. Jack is _ honest boy. A. a B. an C. the D. /( ) 5. _ people were killed in the accident. A. Hundred B. Hundreds of C. Hundreds D. Hundred of( ) 6. -Must I finish the work
9、 today? -No, you _. A. mustnt B. neednt C. cant D. may not( ) 7. -May I go swimming now? -No, you _. You must finish your homework first. A. mustnt B. neednt C. cant D. may not( ) 8. It might belong _ Alice. A. at B. on C. to D. in( ) 9.This book _ Toms fathers, because his name is on the book. A. maybe B. may be C. must be D. must( ) 10.Who does this T-shirt belong _? A. in B. on C. to D. of二，以举例的形式说明所学情态动词表示推测的用法：For example: This book must be Alice. It has her name on it.Must might/could cant 开心 ，我学会了： 1 2 3 加油 ，这些我还不懂： 1 2 3
