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1、高一英语下学期导学案Unit 2 Healthy eatingPeriod 5 语法 （情态动词2）课型：语法课 执笔： 审核：高一英语备课组 时间学习目的：掌握本单元语法-情态动词2课前准备：1. 请同学们事先复习第一单元的语法-情态动词1，以便做好衔接到本单元的情态动词2，切记！2. 提前在学过的两篇课文中找出含有情态动词的相关句子。学习过程：Task1请同学试着翻译以下句子，去发现规律。1. 我认为她应该向公众道歉。I think she _ apologise to the public.2. 你应当去找医生看看病。You _ go and see the doctor. 3.泰坦尼克
2、号应该是部好电影。Titanic _ be a good movie.4. 我们知道如果我们坚持下去就应该会成功。We know if we keep at it we _ succeed. 5.冬天的时候，我们不得不穿上温暖的衣服。We _ put on warm clothes in winter. 6. 你得把面粉和黄油和在一起。7. You _ mix the flour and the butter. 8. 在英国，车辆必须靠左行驶。In England traffic _ keep to the left. 9 所有乘客都必须系安全带。All passengers _wear se
3、at belts.Task2 再请同学们判断以下句子正确与否1. These dishes need be cleaned carefully.2. These dishes need to be cleaned carefully.3. These dishes need cleaning carefully.4. How dare you say such a thing?5. How dare you to say such a thing?6. He darent to speak English before such a crowd, did he?7. He darent spe
4、ak English before such a crowd, dare he?Task3 大家一起来复习一下情态动词的用法。The basic uses of Modal Verbs1、Can / could 2、May / might 3、Must 4、Shall / should5、will / would 6、Dare 7、Need 8、ought to 9、三点说明 10、典型错误1. Can 表示能力 The parrot can speak three languages.表示允许 Can I borrow the book from the library.表示可能性 Shan
5、ghai can be very cold in March.Can 与 be able toCan 表示习惯能力， 而be able to表示经过那里而做成了某事。 在否定结构中，二者可以互换。 can./could + have +p.p1.）在否定、疑问句中表示“对过去发生行为的可能性猜测。2. ）在肯定句中表示“本来可以做而未做”2. May表示可能性、表示允许、表示祝愿Eg. 1. She may be still waiting for us. 2. May I come in?3.May you have a happy holidaymay/might + have +p.p
6、1.）在否定、肯定句中表示对过去动作的推测“也许是”2.） Might+have+p.p表示虚拟，表“劝告、责备之意。”3. Must表示肯定的猜测,但只用于肯定句，而mustnt 表示“禁止、不准”Must表示主观 ，Have to表示客观需求，Have got to 多见于口语must + have +p.p 对过去事情的肯定猜测。4. Shall /should 1、）第一、三人称疑问句中表示“请求或征求对方意见。Eg. Shall I get you a cup of coffee?2、）第二、三人称陈述句中表示允诺“会（得到）。表示命令/警告威胁 “该回必须”shall/should
7、ought to + have +p.p表示本应该做而未做。You should have been five minutes ago.5. Will/ would1、)表示意愿 Ill try my best to overcome the difficulty.2、)表示意图What will you do?3、)表示请示 Will you halp me to put these books in order?4、)表示习惯动作 She will sit for hours without saying a wordWould 与 used to 1、)Would 后只能接表示动作的动词
8、。2、)used to 则还可以接表示状态的动词。Eg. He used to be a worker.6. Dare / dared1、)情态动词用于否定、疑问句；条件从句中。 eg. 1. Dare you go here alone? 2. How dare you do such follish things? 3. I wont allow you to swim in the river, even if you dare do it.2 、)做实意动词后加不定式。 eg. I have never dared to tell him about it. 7. Need /need
9、ed 1、)情态动词用于否定句，疑问句。2、)实意动词用法似dare,用作不定式。3、)need + not + have +p.p 表示“本来不需要做而做了。8. Ought to 其否定式为ought not to ought to + have + p.p表示本来应该做而没有做到。Task4. 三点说明1、情态动词 + v 表示对现在或将来动作的猜测。 情态动词 + have + p.p表示对过去动作的猜测。2、情态动词的过去式与原形相比，多点礼貌，少点冒昧， 语气更为委婉。情态动词在一般疑问句中的回答： Can you sing? Yes, I can. No, I cant. May
10、 I come in? Yes, you may. No, you mustnt. Must I handin the book now? Yes, you must. No, neednt /dont have to. Need I finish it now? Yes, you must. No, you neednt.Task5. 典型错误(请改正)1. He mustnt be in the classroom. 2. You might leave the bag on the bag. 3. You must have seen the film last week, havet
11、you?4. Li ming must have been to Japan, didnt he? Task6. Exercises（一）. (巩固练习)1. I thought you _like something to read, so I have brought 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 p
12、hone. I _asleep. A. must be B. must have been C. should be D. should have been4.-Is John coming by train? -He should, but he _ not. He likes driving his car. A. must B. can C. need D. may5. It has been announced by law that candidates(候选人) _ remain in their seats until all the papers have been colle
13、cted. A. can B. will C. may D. shall6.-I heard they went skiing in the mountains last winter. -It _ true because there was little snow there. A. may not be B. wont be C. couldnt be D. mustnt beExercises（二）. (巩固练习)翻译1. 我不得不接受你的建议。2. 未经允许，你不准来这儿。 3. 你应当去照顾你妹妹。4. 他们一定已到那儿了。Homework: 1.复习语法知识 情态动词1-2. 2. 完成配套练习 语法专练顶尖课课练教（学）后记：