情态动词课件（修改版）.ppt

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1、高考英语情态动词必备知识点高考英语情态动词必备知识点If winter comes ,_spring be far behind?canHave a try努力不一定会成功，不努力肯定不能成功。One _succeed by a try ,but he _succeed without a try. may not cant情态动词情态动词 (modal verb )? can/could/be able to, may/might, should/ought to/have to/ must, dare/need, will/shall, would/ used to, had better

2、, would rather, would like/should love情态动词的特点情态动词的特点n情态动词有一定的意义情态动词有一定的意义n无人称和数的变化无人称和数的变化n除ought 和have 外，通常不通常不带带to ,to ,后接动词原形后接动词原形n表示说话人的语气或情绪表示说话人的语气或情绪1.I havent got the reference book yet, but I will have a test on the subject next month. -Dont worry. You have it by Friday. 高考真题show:考查情态动词的特殊

3、用法2.Who has broken the window in my room? -Who else it but your naughty boy? 考查情态动词表推测3.But for the help of my English teacher, I (win) thefirst prize in the English Writing Competition. 考查情态动词在虚拟语气中的运用4. What do you think of the book? It be better. I even want to read it twice. 考查情态动词的特殊用法5. Just b

4、e patient. You expect the world to change so soon. 考查情态动词的基本词义情态动词命题角度n1.情态动词词义情态动词词义n2.情态动词用于推测情态动词用于推测n3.情态动词特殊用法及固定句型情态动词特殊用法及固定句型n4.虚拟语气句型的应用虚拟语气句型的应用 推测句型用法表推测句型用法表情态动词情态动词 含义含义 适用句型适用句型 May /might可能，或许可能，或许 肯定句，否定句肯定句，否定句 Can/could可能，或许可能，或许 否定句，疑问句否定句，疑问句Must一定，必须一定，必须肯定句肯定句 不可能可能不高考能力要求：情态动词

5、情态动词 对将来对将来 对现在对现在对过去对过去肯定的推测肯定的推测+ V.常见常见must be + V. + be doing+ have done可能的推测可能的推测+ V.+ V. + be doing+ have done否定的推测否定的推测+ V.+ V. + be doing+ have done疑问的推测疑问的推测+ V.+ V. + be doing+ have donemustmay, might cant,couldntcan, could can/could have done should /ought to have doneneednt have done 情态动

6、词在一般疑问句的问与答:1.May I come in ? 2.Must I do it now?Yes, you may/certainly pleaseNo, you mustnt./Please dont.Yes, you mustNo, you neednt./dont have to情态动词在一般疑问句的问与答:3.Need I finish my homework today? Yes, you must. No, you neednt.4. Could I come to see you tomorrow? Yes, you can. / No, Im afraid not (代

7、替you cant更委婉的表拒绝).5. Might I? Yes, you may. / No, you may not.情态动词的特殊用法：1.May 祝愿祝愿 May you succeed. .情态动词的特殊用法： 3.must . 1). John，look at the time, must you play the piano at such a late hour？ 2). Could I have a word with you, mum? Oh, dear, if you must.偏偏情态动词的特殊用法：4.Why/ How + should 结构表示说话人对某事不理解，

8、感到意外，惊讶等意思。 You cant imagine that a well-behaved gentleman should be so rude to a lady. 竟然竟然5.Shall 的用法：.Shall 与一、三人称连用，疑问表请求： Shall the young fellow have a try? Shall I have a second try？.Shall与二、三人称连用表命令、警告、威胁和允诺等： You shall fail if you dont work harder. You shall go out of the room unless you sto

9、p talking. You shall get a rise if you work harder. 同时在颁布法律，规定时，也要用shall.6.will 的用法：(1) 在疑问句中，用于第二人称，用来征询对方意见或请求指示。 Will you please do some shopping with me?(2) 用在各人称中，表示“意愿、愿意”。 Come on, children. I will tell you all about my story.(3) 用于各人称，表习惯性或规律性，意为“总是、惯于”。 Man will die.(4)用在 Let us do sth. 或否定

10、祈使句 Dont do sth. 后的反意疑问句中。 Let us start now, will you? Dont shut the door, will you? (5) will 的否定式（wont）还可表示某东西总是或老是有不妙的情况发生（“就是不” .eg. start/close/shut）。 The door wont close. 7.dare 情态动词的用法 I dare not do that, or Ill be beaten by my father.注意： dare 实义动词实义动词的用法：的用法： 有有人称和数的变化 疑问句与否定式（not dare.) 搭配:d

11、are to do sth 否定句中，常用 not dare (to) do sth.结构 He did not dare (to ) have a try. dare 情态动词情态动词的用法：的用法： .无无人称和数的变化 .否定式 dare+not +V(动原)(1) 作“需要”讲，need sth. I badly need a haircut now.(2)某人需要做某事：sb. need . Tomorrow is Sunday. You dont need to arrive early.(3)某人或某物需要被 sb./sth. needs . The chair needs (r

12、epair) at once.need 实义动词的用法实义动词的用法：doing/ to be doneto doto be repaired/ repairing情态动词的特殊用法：1.had better do (not do)2.Would rather dothan do3.can not too/enough . You cant be too careful when you are driving. You cant remember enough English words.4.can but do . I can but agree with you.无论无论也不为过也不为过

13、只好情态动词的特殊用法：5.cant help but do sth. cant but do sth. cant choose but do I cant but admire your courage .不得不、不能不cant help but admire cant choose but admire have no choice but to do 除别无选择情态动词的特殊用法：6.may/might as well You might as well do your present job before you find a new one .7.may well do sth. He may well say so ./do that.倒不如、只好很可能情态动词的特殊用法：9. would rather (not) have done .eg. I would rather have taken your advice10. Would like/love to have done . I would love to have attended to your party, but I had to work extra hours to prepare a speech.宁愿做（不做）某事本来想干某事”而实际上未做Good-byeThank you