《廣東省2013年高考英語(yǔ)二輪復(fù)習(xí) 語(yǔ)法熱點(diǎn)突破第八講 情態(tài)動(dòng)詞和虛擬語(yǔ)氣》由會(huì)員分享，可在線(xiàn)閱讀，更多相關(guān)《廣東省2013年高考英語(yǔ)二輪復(fù)習(xí) 語(yǔ)法熱點(diǎn)突破第八講 情態(tài)動(dòng)詞和虛擬語(yǔ)氣（4頁(yè)珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。

1、2013年高考第二輪復(fù)習(xí)英語(yǔ)廣東版 語(yǔ)法熱點(diǎn)突破第八講情態(tài)動(dòng)詞和虛擬語(yǔ)氣一、情態(tài)動(dòng)詞1情態(tài)動(dòng)詞具有以下三個(gè)特點(diǎn)：（1）后面接動(dòng)詞原形。（2）沒(méi)有人稱(chēng)和數(shù)的變化。（3）變?yōu)橐蓡?wèn)句或否定句時(shí)不需要加助動(dòng)詞，而是將情態(tài)動(dòng)詞移至主語(yǔ)前變?yōu)橐蓡?wèn)句；在情態(tài)動(dòng)詞后加not，構(gòu)成否定句。2“情態(tài)動(dòng)詞have done”表示推測(cè)、必要性情態(tài)動(dòng)詞have過(guò)去分詞用法must have done表示對(duì)過(guò)去已經(jīng)發(fā)生的行為進(jìn)行推測(cè)，意為“想必/準(zhǔn)是/一定做了某事”can/could have done表示對(duì)過(guò)去發(fā)生的行為的懷疑和不肯定，通常用在否定句和疑問(wèn)句中could have done可用于肯定句中，表示“可能已經(jīng)

2、”；此外，還可表示過(guò)去沒(méi)有實(shí)現(xiàn)的可能性，意為“本來(lái)可以”may/might （not）have done表示對(duì)過(guò)去已發(fā)生行為的推測(cè)，用于肯定句中，表示“也許已經(jīng)”；在否定句中表示“可能不”，用might則表示語(yǔ)氣更加不肯定should/ought （not）to have done用于肯定句中，表示“本該做某事，而實(shí)際上未做”；用于否定句中，則表示“不該做的事反而做了”neednt have done表示“本來(lái)沒(méi)必要做某事”，指做了本來(lái)不必去做的事They must have_fallen （fall）asleep.I saw Mr. Wang just now.He couldnt have

3、_gone （go）to Beijing.You could have done better，but you were too careless.You should have come to the meeting earlier.3表示能力，can與be able to一般可互換，但be able to可用于將來(lái)時(shí)和完成時(shí)等時(shí)態(tài)；在表示過(guò)去具體某次能夠成功做成某事時(shí)，只能用was/were able to。4表示請(qǐng)求許可，可說(shuō)May/Might/Can/Could I .？但表示給予許可時(shí)，不能用might/could，即不說(shuō)you might/could。5must與have to的區(qū)

4、別：must強(qiáng)調(diào)主觀(guān)認(rèn)為“必須”做某事，而have to 強(qiáng)調(diào)客觀(guān)上要求“不得不”做某事；have to 有過(guò)去式（had to）和將來(lái)時(shí)（will have to）等時(shí)態(tài)；mustnt意為“不準(zhǔn)”，dont have toneednt，意為“不必”。另外，must還可表示“硬要，偏要”。6should可表示“萬(wàn)一，竟然”。7表示“應(yīng)該，應(yīng)當(dāng)”，should和ought to可互換，只是ought to的語(yǔ)氣稍重；should強(qiáng)調(diào)主觀(guān)看法，而ought to強(qiáng)調(diào)客觀(guān)要求。8shall在陳述句中表示說(shuō)話(huà)者給對(duì)方的承諾、決心、警告、威脅等；也可在法令、條約、規(guī)章中表示強(qiáng)制，意為“必須，應(yīng)該”。還可

5、以用于Shall I/he .（要不要我/他？好嗎？）。9might/may as well“不妨，還是為好”；had better do sth.“最好做某事”；would rather do sth.“寧愿做某事”。10“cannot help but動(dòng)詞原形”表示“不得不，只好”。I cannot help but go.11cannot/can never . enough/too .表示“再也不為過(guò)”。You cannot be careful enough to cross the road.二、虛擬語(yǔ)氣類(lèi)別用法例句if引導(dǎo)的條件從句與現(xiàn)在事實(shí)相反從句謂語(yǔ)動(dòng)詞：過(guò)去式（be用wer

6、e）主句謂語(yǔ)動(dòng)詞：should/would/could/might動(dòng)詞原形If he were here，he would help us.與過(guò)去事實(shí)相反從句謂語(yǔ)動(dòng)詞：had過(guò)去分詞主句謂語(yǔ)動(dòng)詞：should/would/could/mighthave過(guò)去分詞If I had been free，I would have visited you.與將來(lái)事實(shí)相反從句謂語(yǔ)動(dòng)詞：過(guò)去式/should動(dòng)詞原形/were不定式主句謂語(yǔ)動(dòng)詞：should/would/could/might動(dòng)詞原形If it should rain tomorrow，we would not go camping.其他狀語(yǔ)

7、從句as if引導(dǎo)的狀語(yǔ)從句中謂語(yǔ)動(dòng)詞用過(guò)去式（與現(xiàn)在事實(shí)不符）或過(guò)去完成式（與過(guò)去事實(shí)不符）The young man with long hair walks as if he were a girl.in order that/so that引導(dǎo)的狀語(yǔ)從句中謂語(yǔ)動(dòng)詞用can/could/may/might/would等動(dòng)詞原形Turn on the light so that we can see it clearly.賓語(yǔ)從句demand，suggest，order，insist后接的從句中謂語(yǔ)動(dòng)詞用“should動(dòng)詞原形”He suggested that we （should）no

8、t change our mind.wish后的從句中謂語(yǔ)動(dòng)詞分別用過(guò)去式，過(guò)去完成式和should/would動(dòng)詞原形，表示與現(xiàn)在、過(guò)去和將來(lái)情況相反I wish I could be a pop singer.主語(yǔ)從句在It is necessary/important/strange that.，It is suggested/demanded/ordered/requested that.等從句中，謂語(yǔ)動(dòng)詞用“should動(dòng)詞原形”It is strange that such a person should be our friends.其他句型中It is （high）time t

9、hat.句型中that從句謂語(yǔ)動(dòng)詞用過(guò)去式或should動(dòng)詞原形Its high time that we left.would rather所接的從句中that從句謂語(yǔ)動(dòng)詞用過(guò)去式或過(guò)去完成式I would rather you stayed at home now.if only句型中動(dòng)詞常用過(guò)去式或過(guò)去完成式，表示強(qiáng)烈的愿望If only our dream had come true！即時(shí)訓(xùn)練在下列各句中填入適當(dāng)?shù)那閼B(tài)動(dòng)詞1（2011江西高考）It _ （not）be the postman at the door.Its only six oclock.2（2011遼寧高考）If y

10、ou _ go，at least wait until the storm is over.3（2011新課標(biāo)全國(guó)高考）They _ have arrived at lunchtime but their flight was delayed.4（2011重慶高考）Why didnt you come to Simons party last night?I wanted to，but my mom simply _ not let me out so late at night.5（2011浙江高考）Hows your new babysitter?We _ （not）ask for a b

11、etter one.All our kids love her so much.6（2011陜西高考）I _（not）go through that bitter period without your generous help.7（2011陜西高考）Will you read me a story，Mummy?OK.You _ have one if you go to bed as soon as possible.8（2011上海高考）I _（not）worry about my weekendI always have my plans ready before it comes.9

12、There _（not）be any difficulty about passing the road test since you have practiced a lot in the driving school.10The World Wide Web is sometimes jokingly called the World Wide Wait because it _ be very slow.11I _ not stay for lunch.My brother is coming to see me.12If I _ plan to do anything I wanted

13、 to，Id like to go to Tibet and travel through as much of it as possible.13Tom，you _ not leave all your clothes on the floor like this!14（2011北京高考）I dont really like James.Why did you invite him?Dont worry.He _ not come.He said he wasnt certain what his plans were.15（2011湖南高考）No one _ be compared wit

14、h Yao Ming in playing basketball.Oh，you are really his big fan.用所給動(dòng)詞的適當(dāng)形式填空1（2011北京高考）Where are the children？The dinners going to be completely ruined.I wish they _ （not be）always late.2（2011北京高考）Maybe if I _ （study）science，and not literature then，I would be able to give you more help.3（2011江西高考）We

15、_ （put）Johns name on the race list yesterday but for his recent injury.4If she _（come）here tomorrow，she _（tell）me that.We know she will fly to Beijing tomorrow.5If I _（see）him tomorrow，I will give it to him.6I wish I _（have）a room of my own when I was a boy.7I wish I _（go）to university next year，so

16、now I must study much harder.8I suggested that he _（go）there at once.9He insisted he _（send）to the city.10His expression suggested that he _（pass）the test.11I was ill yesterday.Otherwise，I _（take）part in the sports meeting.12If only I _（see）the film.13You _（come）to the conference yesterday.What was

17、the reason for your absence?14I _（work）out the problem，but I was too nervous.15They insisted that the boy _（go）with them.參考答案第八講情態(tài)動(dòng)詞和虛擬語(yǔ)氣1cant2must3should4would5couldnt6couldnt7shall8neednt9shouldnt10can11can12could13must14might15can1werent2had studied3would have put4came/were to come/should come；might tell5see6had had7will go8（should） go9（should） be sent10had passed11would have taken12had seen13should have come14could have worked15（should） go