人教版新课标高一英语Book3Unit2语法导学案.doc

高一英语Book3 Unit2 语法导学案 情态动词 课标解读： 通过学习使学生不仅掌握情态动词的功能，更主要的是通过亲自动手、动脑、动笔，锻炼学生的鉴别能力和自主学习能力，克服单纯学习语法结构的弊端教学目标: 掌握本学案出现的这几个情态动词的基本用法, 包括need 作为情态动词和实义动词的区别, have to 和must 的区别等教学重难点: 情态动词need, have to, ought to 的用法以及need和dare实意动词和情态动词的用法辨析 【教学过程】【巧设导语 激发兴趣】（5分钟）回顾情态动词的特点:将下列句中的情态动词标上下划线, 并将句子翻译成中文You ought to be more careful next time.You needn’t come if you are busy. I have to get up before 6:00 every day. -- Need I tell him everything? -- Yes, you must./ No, you needn’t. 【整体感知 情景创设】（15分钟）Ⅰ. need1. 情态动词need 的词义：_____________ 情态动词need 的否定形式 : ______________2. 翻译下面的句子, 并思考need 在哪几句中是情态动词,哪几句中是实义动词-- Need I come tomorrow? -- Yes, you must. / No, you needn’t. You needn’t pay for it. The house needs repairing. We need to help him. He needs a good rest. 总结情态动词 need 的用法: Question : 当need 作实义动词和情态动词时, 区别在哪? 【提出问题 合作探究】（10分钟）Ⅱ. have to 情态动词have to 的词义 : ______________情态动词have to 的否定形式：_________________思考: 之前学过的哪个情态动词有相似的含义呢? _____________翻译下面的句子，并注意have to 的用法I have to leave now. It’s 12:00. He had to quit school when he was 5 years old. You don’t have to worry about me. Every college student has to know how to use computers. Question: 情态动词have to 和 must 区别在哪? Ⅲ. ought to 情态动词ought to 的词义 : ______________情态动词ought to 的否定形式：_________________思考：之前学过的哪个情态动词有相似的含义呢？____________ 翻译下列句子，并思考句中情态动词的作用You ought to be more careful next time. Prices ought to come down very quickly. You oughtn’t to let out the secret. 总结 ought to 的基本用法：【多元拓展】情态动词+ have doneneedn’t have done “本没必要做某事 （实际上已经做了）”小练笔/翻译：你本来没有必要做这件事。

2．Ought to have done “本应该做某事（实际上没做）” Ought not to have done “本不应该做某事（实际上却做了）”小练笔/翻译： 你昨天本应该来的. 你昨天本不应该来的. 【反馈矫正 提炼巩固】（10分钟）一．单项选择--- What sort of house do you want to have? Something big? --- Well, it ________ be big – that’s not important. (08年 陕西)A. mustn’t B needn’t C can’t D won’t 2. --- What do you think we can do for our aged parents? --- You ________ do anything except to be with them. (07 重庆) A. don’t have to B oughtn’t to C. mustn’t D. can’t 3. As you worked late last night, you ______ have come this morning. (06 全国1) A．needn’t B can’t C mustn’t D mayn’t 4．Some aspects of a pilot’s job _____ be boring, and pilots often _______ work at inconvenient hours. A. can; have to B. may; can C. have to; may D. ought to; must 二．完成课本P13第二题。