山东省泰安市肥城市第三中学高中英语 Unit 2 Healthy eating情态动词语法学案 新人教版必修 3教学内容Learning aims: 1 知识与 能力：To master some sentence patterns2 过程与方法：To msater the usage of Grammar 情态动词3 情感态度与价值观：Try to pay your attention to the class!Learning key points: To master some sentence patternsLearning difficult points: To master the usage of Grammar 情态动词【学案使用说明】在提前预习的前提下完成学 习指 导即 时感悟【回顾复习】Check the home work (have a dictation of the language points)【自主 合作 探究】1. have tohave to 表示客观需要去做的事情，意为“必须，不得不。”e.g. I have to get the station early to catch the first train. We missed the bus so we had to walk home.have to 有多种时态。常见的有:一般将来时 We will have to gather at the school gate at 7 tomorrow.一般现在时 I have to take more money with me because my wife has so much to buy.一般过去时 Finally, we had to give up our idea to hold a picnic outside as it rained for a whole afternoon.2.dare & needNeed I do …? Yes, you must. No, you needn’t. 情态动词实义动词dare否，疑，条 dare not do否,疑don’t dare to do don’t dare do不用于肯定句肯：dare to do need否，疑 needn’t do (don’t) need sth (don’t) need to do本 单元 语法 点仍 是情 态动 词的 使用1肯：must, have to, ought to, should 注意对 need 问句的回答: --Need I finish the work today? --Yes, ________________. No, ________________. No, ________________.needn’t 对其它情态动词的回答: --Shall I tell John about it? --No, you _______ --Must we do it now? --No, you __________. Could I borrow your dictionary?(委婉) ---- Yes，you can/may. Sure. Go ahead. Please yourself.May I take this seat?(第一人称疑问句) Yes, you may. No, you mustn’t.3. must +have done 表示对过去已经发生的行为进行推测，意为“想...
