M3U1grammar(情态动词).pptVIP

学习情态动词的作用 1）选择题 （1-2题） 考语境，不会单考语法 2）读出文章中作者的意图和意向。 3）作文中恰当地用。（避免多次用should） 5. 表示有时会 Wenzhou can be very hot. He can be very stubborn sometimes. 5.I can’t find Dr Lopez anywhere in the office building. Where ____ he have gone? A. must B. can C. should D. need 6.— Isn’t that Ann’s husband over there? — No, it ____be him-- I’m sure he doesn’t wear glasses. A. can’t B. must not C. won’t D. may not can’t 表不可能，语气肯定，破折号加以注释，据题意，选A。 2. Peter ___ come with us tonight, but he isn’t very sure. A.must B. can C. may D. will 3. ----____ I go out to play, mum? ----No, you___. You should do your homework first. A. Might; wouldn’t B. May; had better not C. Must; mustn’t D. Need; mustn’t shall should 1.The boss said to the secretary, “If you work well, you ______have a rise.” A. must B. shall C. ought D. would B (允诺) 2.--The room is so dirty. ____we clean it ? --Of course. A. Will B. Shall C. Do D. Would B(征询意见) 3.---When can I come for the photos ? I need them tomorrow afternoon. ---They _____be ready by 12 : 00 . A. can B. should C. might D. need 5. must/can’t must表示推测，语气非常肯定，近乎确定的意味，一般用在肯定句。 如：It must be eleven o’clock now. He must be crazy. 在表示推测的否定或者疑问句中必须用 can, 不可以用 must。 must(偏要)/mustn’t 表禁止 John, look at the time. Must you play the piano at such a late hour？ You mustn’t talk to your father like that. 1.Tom, you____ leave all your clothes on the floor like this！（2005年全国Ⅰ） A. wouldnt?????? B. mustnt?????????? C. neednt?????? D. may not * * modal verbs 情态动词 1）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语。 2）情态动词?除ought?和have?外，后面只能接不带 to?的不定式。 3）情态动词没有人称、数的变化，即情态动词第三 人称单数不加-s。但有些情态动词，如can、will 也有一般式和过去式的变化。 情 态 动 词 的 特 点 can, could 和 be able to ： can表示“有能力去做” ； be able to“经过一番努力做成””成功的做成某事” = manage to do He can play the piano very well. Although the s