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1、can,should,may,will,must,would,might,1,12/29/2022,canshouldmaywillmustwouldmight,情态动词modal verb,2,12/29/2022,情态动词modal verb29/27/2022,Discussion,What will you do or say when1. you are late for class2. you see an old man carrying a heavy box3. you see some kids playing on the road,May I come in? Can
2、I help you? You mustnt play on the road.,3,12/29/2022,Discussion What will you do o,may & might,will & would,need / dare,can & could,must,shall & should,情态动词,4,12/29/2022,may & mightwill & wouldneed /,What can I do?,I can swim.,What can he do?,He can swim.,What can they do?,They can swim.,1. 情态动词+ V
3、原2. 无人称和数的变化3. 独立进行句型转化,5,12/29/2022,What can I do? I can swim. Wha,can & could,can的主要用法 A. _： The girl can dance very well. B. _： Can the news be true? C. _: Can I sit here?,表示能力,表示推测,可能性,（多用于疑问、否定句中）,No, it cant be true.,表请求或允许, “可以”,6,12/29/2022,can & could can的主要用法表示能力表示推测,can & could,could的主要用法
4、 A. _ I could read when I was three. Father said I could go out with my friends. We all knew that the young man couldnt be a doctor.B. _ Could you lend me your bike? Could I use your bike?,表示过去的能力,许可和推测 (肯、否、疑),(can could),在疑问句中表示委婉的请求,7,12/29/2022,can & couldcould的主要用法 表示过去的能力,exercise,1. I saw Joh
5、n in the park this morning. It _ be him. He has gone to Hong Kong. A. cant B. can C. must2. Lucy is walking the dog in the park. She _ be. Listen! She is singing loudly in her room. A. cant B. mustnt C. neednt 3. Look! Is the young lady wearing a blue dress Grace? No, it _ be her. She is picking up
6、my sister at the airport. A. cant B. mustnt C. can,8,12/29/2022,exercise1. I saw,may & might,may 的主要用法 A. _ May I come in? Yes, please. / No, you mustnt/cant. B. _ But I may be wrong. The guest may arrive this afternoon. C. _ May you succeed! May you have a good journey!,表示请求、允许;比can正式，“可能，也许”,表示猜测(
7、肯，否),表示祝愿;语气较正式,9,12/29/2022,may & might may 的主要用法 表示请求、允许,may & might,might 的用法 1. _ She said that he might take her bike. 2. _ Might I smoke here? You might get some help from her if she were here.,也可以表示现在的可能性、许可，但是比may表示的可能性更小；且might可以用于虚拟语气,表示过去的可能和允许,“可能，也许”,(may-might),10,12/29/2022,may & migh
8、tmight 的用法也可以表示现在的可能,exercise,1. What will the weather be like tomorrow? . A. must B. might C. shall 2. _ I take photo here? No, you mustnt. Dont you see the sign “NO PHOTOS”? A. Would B. May C. Must3. Wow! Another gift! Whats in the box? Im not sure. It _ be a pair of sports shoes. A. must B. may C
9、. will,11,12/29/2022,exercise1. What will the,must,1. _ You must be careful next time. You mustnt take photos here. 2. _ You have worked hard all day. You must be tired. 3. must 引导的疑问句 Must I finish the homework today? Yes, you must / have to. No, you neednt / dont have to.,表示义务/命令/必要，“必须”,mustnt “禁
10、止”,表示推测，只用于肯定句,12,12/29/2022,must 1. _表示义务,can,may,could,must,might,推测可能性由大到小,13,12/29/2022,canmaycouldmustmight推测可能性由大到小1,exercise,1. We _ drive after drinking. Its very dangerous. A. can B. may C. mustnt2. Look! The woman at the school gate _ be our headmaster. No, it _ be her. She is holding a me
11、eting in the office now.A. must;cant B. must;mustnt C. can;neednt3. I _ go now, or I ll miss my trian. A. can B. might C. must,14,12/29/2022,exercise1. We _ dri,will & would,1. _I will tell you something important. 我将要告诉你一些重要的事。Will you tell her that Im here? 请您告诉她说我在这儿，好吗? 2. _ Will you come here,
12、please?Will you join us for a drink?,will是助动词也是情态动词, 用于构成将来时是助动词,用于表“意志/决心/意愿”是情态动词。,（助动词）,（情态动词）,表示请求，与you连用,15,12/29/2022,will & would1. _wi,will & would,“请求，许可” would表委婉不是表过去,1. _ He wouldnt help me yesterday.She asked if I would go with them.2. _ Would you type this, please?= Will you type this,
13、 please?Teacher wouldnt allow it. = Teacher wont allow it.,表示过去的意愿,will would,16,12/29/2022,will & would“请求，许可” would表委婉不是,exercise,1. _ you give me a hand? (will / would)2. Why didnt you come Toms party last night? I wanted to, but my mother simply _ not me out so late at night. A. will B. would C.
14、 should3. John promised his doctor he _ not smoke, and he had never smoked ever since. A. would B. might C. could,Will / Would,17,12/29/2022,exercise1. _ you gi,shall & should,1. _Perhaps I shall pay a visit to England this winter.可能今年冬天我会去英国观光。,shall用于构成将来时是助动词,用于征求意见,是情态动词, 一般用于第一人称和第三人称,2. _Shall
15、 we go by train, Tom? Tom，我们乘火车去好吗？Shall he come in? 要他进来吗？3. _You shall not enter my house.,用于第二、三人称，表示命令、警告,18,12/29/2022,shall & should1. _,shall & should,1. _Dinner should be ready by now.She should be here at a minute.2. _You should keep your promise. He should work harder.3. _Its strange that
16、he should be absent.,表示义务/建议/责任,“应该,必须”,表示可能性、推测,“可能，应该”,表示情感、意志,“竟然”,must 表示规章制度方面You mustnt smoke here.should 表示道德规范方面You should be here on time.,19,12/29/2022,shall & should1. _,exercise,1. Its too hot. _ I swim in the lake? No, you _. Thats too dangerous! A. Should;cant B. Need;mustnt C. Could;c
17、ant2. The room is so dirty. _ we clean it? OK. A. Will B. Shall C. Would D. Do,20,12/29/2022,exercise1. Its too,need,1. _You neednt say sorry to me.You neednt come if you are busy.2. _Need I come tomorrow?No, you neednt. / Yes, you must.,情态动词，在否定句中表示“不必”,情态动词，在疑问句和肯定句中，表示“需要”,He needs a book. I need
18、 to go back home now. I dont need to go back home now. Do you need to go back home now? Yes, I do. / No, I dont. The windows need cleaning/to be cleaned. need sth / to do sth / doing(to be done),实意动词,21,12/29/2022,need 1. _情态动词，在,dare,1. 情态动词: 敢于，竟敢，多用于否定、疑问、条件句中。 I dare not ask him the second question. How dare you say Im unfair?,2. 行为动词: 胆敢，敢于 dare to do sth He dared to do that and something even worse.,He doesnt dare to answer my letter.,22,12/29/2022,dare1. 情态动词: 敢于，竟敢，多用于否定、疑问、条件,THANK YOU,23,12/29/2022,THANK YOU239/27/2022,
