___________________________ _______________________2.Must +be doing/do 表示对现在的动作进行肯定推测他现在一定在看小说 He must be reading novels

高中英语情态动词用法归纳全.ppt在线下载,格式:pdf,文档页数:63

must 的用法1.must 表示主观上的必须，应该，没有时态 变化。You must do everything as I do.注意:—Must I finish my homework today?— Yes, you must. —

GrammarSuqi1an Sarbrina2What’s the definition of modal verbs?情态动词是一种本身有一定的词义,表 示说话人的情绪,态度或语气的动词,但 不能单独作谓语, 只能和其他动词原形 构成谓

may 和might 1. may 的主要用法： A. _表__示__请__求__、__允__许__;比__c_a_n_正__式__:_ eg. May I come in ? ( 请求)You may go now.(允许) B. ___

4.–What____ it be? --It______ be a mail box, for it is moving.It______ be a car. A. B. can; can; must √ can; can`t; must

couldn’t be a doctor.B. could可以代替can表示请求、“允许”。可表示委婉客气的提出问题或陈述看法Could you lend me your dictionary? Could I use your bike?

一、 can, could2) 表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can’t. 此时可与may互换

❖ 3．He ___A____ speak to his mother like that.❖ A．ought not to B．doesn’t ought to C．not ou

2迈4.11克.202一0 定还没有找回他的车, 因为早上他是18坐公共汽车来上班的。need & dare (dared)情态动词 ： （无单三形式）need/dare do sth need/dare not do sth 实意动词：

（一）否定句 had better, should, ought to用于否定句时， 否定词均位于其后，具体形式为： had better not do, shouldn'

6.Weplay chess than bridge. Some of us don't know how toplay bridge.A. had better B. w

7 ought to 的 用法1 表应该与 should 的 区别 You ought to take care of him. You are his father .You o

light has been turned off.must2. 表示“坚持”（常用于固定句型：if you must do sth. 如果你非得要做某事）如果你真的要走，那就悄悄离开。If you must leave, do it qu

may/ might表示推测1. can not 不可能 may not 可能不2. may well “极有可能” e.g. Liza may well not want to

精品PPT4) should / ought to have done 表示过去本该做（某事）而事实上未做； should not / ought not to have done表示过 去本不该做（某事）但事实上却做了，含 有批评、责备之

can/could:3.表示惊异、怀疑、不相信的态度。（主 要用在否定句、疑问句或惊叹句中）Can this be true?He’s such a nice person tha