译林牛津高中一轮复习《情态动词》课件
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1、情态动词 modal verbs,1.-Is John coming by train? -He should, but he _ not. He likes driving his car. A. must B. can C. need D. may 2.It has been announced that candidates(候选人)_ remain in their seats until all the papers have been collected. A. can B.will C. may D. shall 3.-I heard they went skiing in th
2、e mountains last winter. -It _ true because there was little snow there.A. may not be B. wont be C. couldnt be D. mustnt be,情态动词,表示推测,不表示推测,can could may might shall should must will would ought to,have to dare (darent) need (neednt) used to,I darent ask her for a rise. 我不敢请求她加薪. How did you dare to
3、 tell her that? I wonder whether he dare stand up in public. I dont know how she dares to wear that dress. Do you need any help? I wonder whether he need send it immediately. I need hardly tell you that the work is dangerous. The garden doesnt need watering at the moment. You neednt finish that work
4、 today.,可兼做行为动词的情态动词:need 、 dare,情态动词 (+动词原形),行为动词,.,need,dare,1.无人称和数的变化;,2.尤其用于:,*否定句及疑问句中;,*在if/whether之后;,*或与hardly, never, no one, nobody连用;,3.常以neednt 和darent 的形式出现;,4.dare有其过去时dared.,多用于肯定句;(sb.) need to dodare to do (sth.) need to bedone(sth.) need doing,判断正误:,How dare you say such a thing?H
5、ow dare you to say such a thing?,He darent to speak English before such a crowd, did he?He darent speak English before such a crowd, dare he?,Nobody need to be afraid of catching the disease.Nobody need be afraid of catching the disease.,These dishes need be cleaned carefully.These dishes need to be
6、 cleaned carefully.These dishes need cleaning carefully.,注意对need问句的回答:-Need I finish the work today?-Yes, _.No, _.No, _.,you must,you neednt,you dont have to,neednt 对其它情态动词的回答:-Shall I tell John about it?-No, you _.-Must we do it now? -No, you _.,neednt (dont have to),neednt (dont have to),表示推测情态动词的
7、重要用法.,1. You must be Mr Smith-I was told to expect you here. 2. He must have known what we wanted. 3. We may have read the same report. 4. He cant have slept through all that noise. 5. Theres someone outside-who can it be? 6. What can they be doing? 7. These pills might help to cure your disease. 8.
8、 You could be right, I suppose.,表示推测情态动词的重要用法.,肯定的推测可能的推测否定的推测疑问的推测,must/should,对将来 对现在 对过去,情态动词,may, might,cant, couldnt,can, could,+ V. + V. + have done 常见must be + be doing,+ V. + V. + have done+ be doing可以用not表示“可能不”,+V. + V. + have done+ be doing,+ V. + V. + have done+ be doing,1. I dont know w
9、here she is, she _ be in Wuhan.2. At this moment, our teacher _our exam papers.这时,我们老师想必在批改试卷。3. The road is wet. It _ last night.(rain)4. Your mother _ for you.你妈妈一定一直在找你。,may,must be marking,must have rained,must have been looking,5. Philip _ seriously inthe car accident. 菲利普可能在车祸中受了重伤. 6. -Linda
10、has gone to work, but her bicycle is still here.-She _ (go) by bus. 7. Mike _ his car, for he came to work by bus this morning.迈克一定还没有找回他的车,因为早上他是坐公共汽车来上班的。,may (might) have been hurt,may (might) have gone,cant have found,高考考题: 1. I thought you _like something to read, so I have brought you some boo
11、ks. 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 lost 3. I didnt hear the phone. I _asleepA. must be B. must have been C. should be D. should have been,B,D,B,4. -There were already five people in the car, but they manag
12、ed to take me as well.-It _a comfortable journeyA. cant be B. shouldnt be C. mustnt have been D. couldnt have been 5. Its nearly seven oclock . Jack _be here atany moment.A. must B. need C. should D. could,D,C,不同的“肯定”程度可按下列层次排列: He is at home. (事实) He must be at home.(非常肯定的推断) He could be at home.(很
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