初中情態(tài)動(dòng)詞用法總結(jié)

1、初中情態(tài)動(dòng)詞用法總結(jié)一、can的用法:1. (表示能力、功能能,會(huì)The classroom can seat thirty students.這教室能坐三十位學(xué)生。June can drive now.瓊現(xiàn)在會(huì)開(kāi)車(chē)了。2. (表示可能性可能,可能會(huì)I think the work can be completed ahead of time.我認(rèn)為這項(xiàng)工作能提前完成。3. (表示允許、請(qǐng)求可以You can't take the book out of the room.你不可以將這本書(shū)拿出室外。Can I use your pen?我可以用一下你的筆嗎?4. (表示命令必須If y

2、ou won't keep quiet you can get out.你如不保持安靜,就請(qǐng)你走。5. (表示偶然發(fā)生的可能性有時(shí)會(huì)It can be quite windy there, especially in spring.那里有時(shí)容易刮風(fēng),特別在春季。6. (表示驚訝究竟;竟至于What can it possibly be?到底那是怎么一回事?二、could的用法can的過(guò)去式;(用于虛擬語(yǔ)氣,表示與事實(shí)相反的設(shè)想能;可以;(表示可能性可能;(用于婉轉(zhuǎn)語(yǔ)氣能,可以三、may的用法1.表示請(qǐng)求和允許,意思是:可以He may come if he likes. 如果他想來(lái),可

3、以來(lái)2.表示祝愿,意思是:祝,(但愿。May the friendship between our two peoples last forever. 祝兩國(guó)人民的友誼萬(wàn)古長(zhǎng)青。3.表示推測(cè),意思是:可能(會(huì),或許(會(huì)。It may rain this evening. You'd better take an umbrella. 今晚可能要下雨,你最好帶上雨傘。四、must的用法1.表“必須”。You must talk to them about their study.你必須同他們談?wù)勱P(guān)于他們學(xué)習(xí)的事。2.在否定結(jié)構(gòu)中表不許。You mustn't leave here.

4、你不能離開(kāi)這兒。3.表堅(jiān)定的建議。You must come and see us as soon as you get to Shanghai.一到上海你得馬上來(lái)看我們。4.表推測(cè),暗含有很大的可能性,用在肯定句。He must be ill. He looks so pale.他肯定是病了。他的臉色那么蒼白。注意:may 暗含的可能性較小。must 暗含的可能性較大。否定的猜測(cè)用can'tThe baby can't be ill. He is so active.那寶寶不大可能是病了。他那么活躍。五、might的用法might表示的可能性太小,沒(méi)有足夠的說(shuō)服力去職責(zé)別人。

5、can, could 之間的區(qū)別,和may,might 之間的區(qū)別在于,虛擬句和過(guò)去時(shí)態(tài)用后者,表示的可能性比原詞小,但大部分時(shí)候2者可以互換,不會(huì)產(chǎn)生歧義或者對(duì)表述造成干擾。六、should的用法1.should 作為助動(dòng)詞shall 的過(guò)去式,可以在間接引語(yǔ)中與第一人稱(chēng)主語(yǔ)搭配,表示過(guò)去將來(lái)時(shí)間。2.should 作為情態(tài)動(dòng)詞,通常用來(lái)表示現(xiàn)在或?qū)?lái)的責(zé)任或義務(wù),譯作“應(yīng)該”、“應(yīng)當(dāng)”,這時(shí)它可以和ought to,be supposed to 互換使用。例如:You should (= are supposed to complete your test in time.你們應(yīng)該按時(shí)做完

6、你們的實(shí)驗(yàn)。3.should 作為情態(tài)動(dòng)詞,可以用在條件狀語(yǔ)從句中,表示語(yǔ)氣較強(qiáng)的假設(shè),譯作“萬(wàn)一”、“竟然”,這時(shí)也可將should 置于從句之首,即將should 放在主語(yǔ)前面,而省略從屬連詞if. If it should rain tomorrow,I wouldn't go. (= Should it rain tomorrow,I wouldn't go.萬(wàn)一明天天下雨,我就不去了。七、would的用法1.would是will的過(guò)去式,Would you like?表示請(qǐng)求、勸說(shuō),是很客氣的說(shuō)法。Would you like a cup of tea?您愿意喝杯茶嗎

7、?2.主語(yǔ)+would like to表示“想要”的意思上,與want to意思一樣,但用此句型較客氣。I want to ask you a question.3.最基本的虛擬語(yǔ)氣句型:主句用would/ should/ could/ might +動(dòng)詞原形。八。ought to的用法ought to 是一個(gè)可以加上to 的情態(tài)動(dòng)詞其意思與should是一樣的,但是ought to 不能用于虛擬語(yǔ)氣中表示推測(cè),而should可以ought to與should意思接近,大多數(shù)情況下二者可以互換,但是should談的是自己的主觀看法,ought to則更多反映客觀情況,在談到法律、義務(wù)和規(guī)定時(shí)使

8、用。如:We should/ought to help each other and learn from each other in our work.She is your mother, so you ought to support her.1. I told Sally how to get here, but perhaps I _ for her.A. had to write it outB. must have written it outC. should have written it outD. ought to write it out2. There were al

9、ready five people in the car but they managed to take me as well.It _ a comfortable journey.A. can not beB. shouldnt beC.mustnt havebeen D. couldnt have been3. Its nearly seven oclock. Jack _ be here at any moment.A.mustB.needC. shouldD. can4. Johnny, you _ play with the knife, you _ hurt yourself.A

10、.wont;ca ntB. mustnt; mayC. shouldnt; mustD. c ant; shouldnt5. The fire spread through the hotel very quickly but everyone _ get out.A.had toB.wouldC. couldD. was able to6. When can I come for the photos? I need them tomorrow afternoon.They _ be ready by 12:00.A.canB.shouldC. mightD. need7. I stayed

11、 at a hotel while in New York.Oh, did you? You _ with Barbara.A. could have stayedB.could stayC.would stayD. must have stayed8. Are you coming to Jeffs party?Im not sure. I _ go to the concert instead.A.mustB.wouldC.shouldD. might9. I was really anxious about you. You _ home without a word.A.mustnt

12、leaveB. shouldnt have leftC. couldnt have leftD. neednt leave10. Is John coming by train?He should, but he _ not. He likes driving his car.A.mustB.canC. needD. may11. A left-luggage office is a place where bags _ be left for a short time, especially at a railway station.A.shouldB.canC. mustD. will12

13、. I wonder how he _ that to the teacher.A. dare to sayB. dare sayinC. not dare sayD. dared say13. When he was there, he _ go to that coffee shop at the corner after work every day.A. wouldB. shouldC. had betterD. might14. It has been announced that candidates _ remain in their seats until all the pa

14、pers have been collected.A. canB. willC. mayD. shall15. How _ you say that you really understand the whole story if you have covered only a part of the article?A. canB. mustC. needD. may16. I hear youve got a s et of valuable Australian coin. _ I have a look?Yes, certainly.A. DoB. MayC. ShallD. Shou

15、ldAnswer:1. C?！皁ught to / should have+過(guò)去分詞”表示后悔當(dāng)初該做但卻沒(méi)做某事?！耙苍S我本該把詳細(xì)地址寫(xiě)給她的?！?. D?！癱ouldnt have+過(guò)去分詞”表示對(duì)過(guò)去情況的推測(cè)。既然小汽車(chē)上“已有五人”,且是“設(shè)法”才把你帶去的,如此擁擠,旅途當(dāng)然“不可能”舒服。3. C。nearly 暗示“時(shí)間不早了”,Jack“按理應(yīng)當(dāng)(should隨時(shí)(at any moment”都有可能到達(dá)這里。must 語(yǔ)氣過(guò)強(qiáng);can 一般不用于肯定推測(cè);need 意義不通,也不用于肯定句。4. B。mustnt(不許、千萬(wàn)不表示禁止。may 表示可能性。句意為“你千萬(wàn)不

16、要玩刀子,可能會(huì)弄傷自己的”。5. D。表示過(guò)去具體某次“能夠”做成某事只能用 was / were able to 而不用could。6. B。should 表示按理應(yīng)當(dāng),大概。can 一般不用于肯定推測(cè);用 might 語(yǔ)氣太不肯定,顧客可能走掉。7. A。could have done 表示本可以做但卻沒(méi)有做的事。句意為“你本來(lái)可以住在Barbara 那兒的”;而 must have done 只表示有把握的肯定推測(cè),這與前面具有疑問(wèn)語(yǔ)氣的 Oh, did you?不符。8. D。語(yǔ)境明顯提示“我可能(might要去聽(tīng)音樂(lè)會(huì)” 。9. B。表示輕微的責(zé)備,句意為“我真的好擔(dān)心你啊。你當(dāng)時(shí)本不該不說(shuō)一聲就離開(kāi)家的”。10. D。由“他自己喜歡開(kāi)車(chē)”這一習(xí)慣推斷,“他可能不會(huì)(may