情态动词用法

1、2022/7/281动词的时态和语态 2022/7/282 That must have been a long trip. Yeah, it _ us a whole week to get there. A. takes B. has taken C. took D. was takingC2022/7/283After Jack had sent some emails, he _ working on his project. A. had started B. has started C. started D. starts C2022/7/284The manager _ the

2、workers how to improve the program since 9 am. A. has told B. is telling C. has been telling D. will have toldC2022/7/285 Can I call you back at two oclock this afternoon? Im sorry, but by then I _ to Beijing. How about five? A. fly B. will fly C. will be flying D. am flying C2022/7/286Mum, I was wo

3、ndering if you could lend me a few dollars until I _ on Friday. A. get paid B. got paid C. have paid D. had been paidA2022/7/287Food supplies in the floodstricken area _. We must act immediately before theres none left. A. have run out B. are running out C. have been run out D. are being run outB202

4、2/7/288This machine is very easy _. Anybody can learn to use it in a few minutes. A. operating B. to be operating C. operated D. to operateD2022/7/289She was _ the bike for 25 dollars，but she wouldnt take it. A. provided B. supplied C. offered D. gaveC2022/7/2810 Youve left the light on. Oh, so I ha

5、ve. _ and turn it off. A. Ill go B. Ive gone C. I go D. Im goingA2022/7/28112. By the window sits his wife, who, dressed in black, _ like my aunt. A. look B. looking C. looked D. looksD2022/7/28123. The bridge, which _ 1688, needs repairing. A. is dated from B. was dated from C. dates from D. dated

6、fromC2022/7/28134. Do you like the material? Yes, it _ very soft. A. is feeling B. felt C. feels D. is feltC2022/7/28146. He will come tomorrow. But Id rather he _ the day after tomorrow. A. will come B. is coming C. came D. had comeC2022/7/28157. Mr. Smith _ a book about China last year but I dont

7、know whether he has finished it. A. has written B. wrote C. had written D. was writingD2022/7/281610. I had hoped to see her off at the station, but I _ too busy. A. was B. had been C. would be D. would have beenA2022/7/2817I _ in London for many years，but Ive never regretted my final decision to mo

8、ve back to China.Alived Bwas livingChave lived Dhad livedA2022/7/2818Close the door of fear behind you，and you _ the door of faith open before you.Asaw Bhave seen Cwill see Dare seeingC2022/7/2819Its really time I went home but Im enjoying myself, so I _ here a bit longer.Aam staying Bhave stayed Cs

9、tayed DstayA2022/7/2820Ill go to the library as soon as I finish what I _.Awas doing Bam doing Chave done Dhad been doingB2022/7/2821Alvin，are you coming with us?Id love to，but something unexpected _.Ahas come up Bwas coming up Chad come up Dwould come upA2022/7/2822Id like a pen which _ well.Will t

10、his one _？Awrites；do Bwrites；workCis written；do Dis written；workA2022/7/2823-Sorry to have interrupted you. Please go on-Where was I ?-You _ you didnt like your fathers job.A. had said B .said C .were saying D . had been saying C - I hear Jane has gone to the Holy Island for her birthday.- Oh, how n

11、ice! Do you know when she _A. was leaving B. had left C. has left D. left D 情 态 动 词情态动词表示说话人对某一动作或状态的态度，认为“可能、“应当、“必要等等，但本身词义不完全，不能单独作谓语，必须和不带to的动词不定式(ought除外)连用。情态动词没有人称和数的变化。1. can / could 1) 表示能力I can swimI can run fast1. can / could 2) 表客观可能性，“有时会An experienced driver can have an accident at tim

12、es.1. can / could 3) 表示请求Can I go now?Yes ,you can/may1. can / could 4.表猜测，不相信，疑心，惊讶Can this be ture?How can you be so carelessness.凡表示“经过努力，设法做成某事时，不用can，须用be able to. The fire spread through the hotel very quickly, but everyone was able to get out.2. may/might1) 表示许可May I use you car.Yes, you may.

13、No, you musnt.2.may/might2) 用于祈使句，表祝愿May you succeed!May you happy!2. may/might3) 表推测，可能He may be busy now.might 可能性小。3.will/ would1).各种人称表意志，意愿，决心I told her to stop crying ,but she just would not listen.I wanted to your party ,but my mom simply wouldnt let me out so late at night. 甚至在条件句中也可用：If you

14、 will allow me, Ill see you home.3.will/ would2).第二人称，表请求Will/Would you please keep the door open?3.will/ would3).表倾向或习惯，惯于，总是Fish will die without water.She will sit for hours without saying anything.No matter what you may say, he will always stick to his own views.Whats the matter with the door? I

15、t wont lock.The weather is so cold and the car wont start.would表示过去的习惯动作或一种倾向：She would sit like that for hours.Every day he would get up at six and light the fire.He told me the box wouldnt open.4.should1).表责任或义务，应该，应当You should complete your test in time.4.should2).表较大可能实现的猜测，推断，意为“可能，应该They shoul

16、d be home by now, I think.The street should be crowed at weekends.4.should3).表万一Should I be free tomorrow, I will come.4.should4).表意外，“竟然，居然A gentleman like him should be rude to a lady. 5.shall1). shall作为情态动词，用于第二、三人称，表示说话人的意愿，有“命令、“警告、“威胁 “允诺等意思。You shall do as I say.Tell him that he shall have th

17、e book tomorrow.You naughty boy! You shall get what you deserve.2)用在问句中征求对方意见和指示，用于第一、第三人称：Shall I open the window?What shall they do next?6.must1). 必须，应该，否认句：“禁止You mustnt park here, for its an emergency exist.Must I be home before eight oclock?Yes, you must.No, you neednt. / No, you dont have to.6

18、.must2). 表推测，一定否认式“cant ,couldntThere must be a mistake.There cant be a mistake.He must be sleeping at this time .He cant be sleeping at this time .His watch must have stopped. I will go and call him.His watch cant have stopped. It was bought yesterday.6.must3). 偏要，非得否认式“cant ,couldntIf you must go

19、,at least wait till the rain stops.在表示“必须这个意思时，must和have to是很接近的但have to比较强调客观的需要，must着重说明主观的义务或必要；口语中较常用have to：7. need可以作情态动词，意为：需要，主要用于否认句和疑问句。Need you go so soon?Yes, I must. No, I neednt.如果用作vt 和不定式连用，可用于各种结构：Does he need to know it?This question needs to be discussed.You dont need to do it you

20、rself.固定用法cant too much/enough/more.无论怎样也不过分， cant help doing情不自禁做某事；may/might as well 不妨may/might well 很有可能must have donecould have donecant /couldnt have donemay /might have doneshould/ought to have doneneednt have doneWe could have faced the difficulty together, but why didnt you tell me.Harry is

21、 feeling uncomfortable. He must have drunk too much at the party last night.Sorry, I am late. I might have turned off the alarm clock and gone back to sleep again.must have doneHe must be a student , _? He must have stayed up late ,_.He must have stayed up late last night?_.isnt he ?hasnt he ?didnt

22、he ?must have donemust have done 的否认式:cant /could have doneYou _ not have seen him in the street yesterday, for he has been to Japan.can/couldcould have doneI could have come on time, but my car broke on the way.-Happy birthday-Thank you! Its the best present I could have wished for.may/might have d

23、oneSorry, I am late. I might have turned off the alarm clock and gone back to sleep againshould(not)/ought (not)to have done I shouldnt have scolded her for such a small thing.need (not) have done You neednt have walked so quickly since time was enough.Subjunctive Mood一、虚拟语气在条件状语从句中的用法条件从句If 从句的谓语形式

24、主句的谓语形式现在过去未来did / werehad donewould/could/should/might +V.(原)would/could/should/might+have+p.p.1. did / were2. should do 3. were to dowould/could/should /might + V.(原)假设条件虚拟倒装. 条件从句中有should, were, had三个助动词时, 可以把if省略，并将这三个词提至句首。If I were you, I would give it up.If it were not for your advice, we cou

25、ldnt have got over the difficulties.Were I you, I would give it up.Were it not for your advice, we couldnt have got over the difficulties.If I had had time, I would have run round that lake again.If there should be a flood, what should we do?Had I had time, I would have run round that lake again.Sho

26、uld there be a flood, what should we do? 虚拟语气在假设条件句型注意点： 1.假设条件从句谓语动词发生的时间与主句所假设的谓语动词不一致，叫做错综条件虚拟语气。主句和从句的谓语动词要依照假设的时间而定。If you _ my advice just now, you _ better now.If you _ hard before, you _ a college student now.had followed would be had studied would be If you had come back earlier last night,

27、 you would have gone to bed earlier.If you had gone to bed earlier last night, you _(be) so sleepy now.would be If you _ (attend) the meeting yesterday, you _ (know) what we are doing now.had attendedwould knowIf it _ (be) not for the fact that his father is the manager, he _ ( not get) the position

28、.would not have gotwere含蓄条件句I was busy that day. Otherwise I would have gone there with them.If I hadnt been busy that day, I would have gone there with them.I would have finished the work, but I have been ill.If I hadnt been ill, I would have finished the work.Without air, there would be no living

29、things.If there were no air, there would be no living things.But for your help, I couldnt have done it.If it hadnt been for your help, I couldnt have done it.3.含蓄虚拟语气:用介词短语代替条件句。常用的介词有with, without, but for等He was busy, otherwise he_ (come). He _(come), but he is very busy now. I should have helped

30、him, but I _(out). would have come would come was out 二、虚拟语气特殊句型： wish + 宾语从句现在：过去：未来：过去时 (did/were)过去完成时 (had done)would/could/might+V. shouldI wish I were a bird. (现在)I wish I hadnt made such a mistake. (过去)We wish our parents wouldnt punish us. (未来)2. If only = How I wish thatIf only I knew his n

31、ame!If only we had followed your advice!If only I could see him again!3. would rather that -现在：过去：未来：I would rather you paid me now. (现在)I would rather you had gone, too. (过去)Dont come. I would rather you came tomorrow. (未来)过去时过去时过去完成时4. as if /though + 从句现在：过去：过去时过去完成时He looks as if he were drunk.They talked as if they had been friends for years.She loves the baby as if it were her own son.It seems as if it were spring.I remember the whole thing as if it had happened yesterday.5.Its (about/h