陕西省阳光中学高一英语学案：Unit 2《Healthy Eating Grammar》(必修三).doc

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1、第 课时课题名称时间第 周 星期课型Grammar主备课人 目标1. Knowledge aims: Learn and grasp the usages of Modal Verb II 2. Ability aims: Use Modal Verb II correctly and properly.重点Make clear about the Modal verbs: ought/ ought not to ; should / should not; mustnt ; (dont) have to ;二次备课难点Master the usage of the Modal verbs自主

2、学习在课文中找出含有情态动词的句子1 2 3 4 5 问题生成记录： 精讲互动 1.ought toshould1) should 和ought to 都为“_”，用于各种人称。ought to 的语气稍重一些。 You ought to (should) follow your teachers advice.2) 表示主语的义务或责任：You should take care of your sister.4) should 和ought to 后面跟动词不定式的完成式, You should/ought to have made the decision a week ago.I sho

3、uldnt have made such a foolish mistake. 2. must / have to1).must的用法 表示_义务和必要,主要用于肯定句和疑问句,意思为“必须，得，；由must 引起的疑问句，肯定回答要用_,否定回答要用_或_, 意思是“不必” ； must的否定形式mustnt表示禁止，意思是“_”。如： MustIfinishthetaskrightnow? Yes, youmust./Yes,youhaveto. (No, you neednt. / No, you dont have to. 不, 不必。) 2) haveto的用法A. haveto表示

4、一种_需要，意思是“不得不”。如：B. haveto的否定形式是dont have to, 相当于_。如： They dont have to buy a computer at present. 3. need / dare（观察句子，总结规律）（1）作为情态动词，need常用于 句和 句。e.g. You neednt buy the dictionary, for we have one lying on the desk. Need he do his homework first?(2) 作为实意动词，need通常用法是 【注意答语】 -Need you go now? -Yes,

5、I ./ No, I .（3）dare 用作情态动词，后跟动词原形，主要用于 句, 句和 句。 e.g. How dare she do things like that to me? -Dare you catch the mouse? - I darent do that. If you dare say that to our teacher, I would devote for you.4. 表“推测，可能性”的情态动词的用法:5.情态动词+have done 用法总结:达标训练1. I thought you _like something to read, so I have b

6、rought you some books. A. may B. might C. would D. must 2. Where is my pen? I _it. A. might lose B. would have lost C. should have lost D. must have lost3. I didnt hear the phone. I _asleep A. must be B. must have been C. should be D. should have been4. -There were already five people in the car, bu

7、t they managed to take me as well. -It _a comfortable journey A. cant be B. shouldnt be C. mustnt have been D. couldnt have been 5. Its nearly seven oclock . Jack _be here at any moment. A. must B. need C. should D. could6. -Did the train arrive in time?-No. It _ two hours ago.A. must have arrived B. ought to have arrived C. must arrive D. ought to arrive专项练习（附后）作业反思板书设计