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1、“情態(tài)動(dòng)詞+havedone”重點(diǎn)講解如果他學(xué)習(xí)努力,他就會(huì)通過(guò)期末考試了。Ifhehadworkedhard,hewouldhavepassedtheFinalexamination.一、在虛擬條件句中,如果表示與過(guò)去事實(shí)相反的情況,從句用過(guò)去完成時(shí),而主句中則用“情態(tài)動(dòng)詞+現(xiàn)在完成時(shí)”,即would/could/should/mighthavedoneA.couldhavestayB.couldstayC.wouldstayD.musthavestay---IstayedatahotelwhileinNewYork.---Oh,didyou?You__
2、_withBarbara.答案A,本句是一個(gè)含蓄虛擬條件句,意思是:IfyouhadstayatahotelwhileinNewYork,youcouldhavestayedwithBarbara.表達(dá)了與過(guò)去事實(shí)相反的情況??键c(diǎn)聚焦A.hadsaidB.saidC.mightsayD.mighthavesaid2.YesterdayJanewalkedawayfordiscussion,otherwise,she___somethingshewouldregretlater.答案D本句考查的也是含蓄虛擬語(yǔ)氣,意思是:如果她參加了討論,她可能會(huì)說(shuō)出一些后來(lái)
3、令她后悔的話。表達(dá)了與過(guò)去事實(shí)相反的情況??键c(diǎn)聚焦二、musthavedone表示對(duì)過(guò)去已經(jīng)發(fā)生過(guò)的情況的肯定推測(cè)判斷,語(yǔ)氣較強(qiáng),意思是“一定……、肯定……”昨天晚上一定是下雨了,因?yàn)榻裨绲孛媸浅睗竦摹tmusthaverainedlastnight,forthegroundiswetthismorning.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen1.Ididn’thearthephone.I____asleep.答案B關(guān)鍵詞是didn’t,說(shuō)明動(dòng)作發(fā)生在過(guò)去,所以是對(duì)已經(jīng)發(fā)生過(guò)的情況的推測(cè)判斷???/p>
4、點(diǎn)聚焦A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen2.---Irangyourhomeyesterday.AmanansweredbutIdidn'trecognizethevoice.---On,it___mybrother,Peter.答案B本句的意思是:我昨天向你家里打的電話。這是對(duì)過(guò)去情況的推測(cè)判斷,應(yīng)該用musthavedone結(jié)構(gòu)考點(diǎn)聚焦三、may/mighthavedone也用于對(duì)已經(jīng)發(fā)生過(guò)的情況的肯定推測(cè)判斷,但語(yǔ)氣稍弱,意思是“可能,或許……”。她沒(méi)能及時(shí)到達(dá)那兒。她可能沒(méi)趕上汽車。Sh
5、edidn’tgetthereintime.Shemayhavemissedthebus.他今天沒(méi)來(lái)上課,他可能病了。Hedidn’tcometoschooltoday.Hemighthavebeenill.A.might??B.shouldC.can????D.will1.Sorry,I’mlate.I____haveturnedoffthealarmclockandgonebacktosleepagain.2.Thewindowwasbroken.Tom____havedonethat,forhewasalittlenaughty.A.couldB.m
6、ightC.shouldD.oughtto考點(diǎn)聚焦四、如果對(duì)過(guò)去情況推測(cè)判斷的句子是疑問(wèn)句和否定句,只能用can/could和can’t,/couldn’t。例如:他不可能去國(guó)外,我一個(gè)小時(shí)前還見(jiàn)到他呢。Hecan’thavegoneabroad;Isawhimanhourago.Hecan’thavegoneabroad;Isawhimanhourago.他不可能去國(guó)外,我一個(gè)小時(shí)前還見(jiàn)到他呢。---Canhehavepassedtheexam?---No,hecan’thave.Hedidn’tworkhard.他通過(guò)考試了嗎?不,他不可能通過(guò)考試。他
7、學(xué)習(xí)不努力。1.?---Therewerealreadyfivepeopleinthecarbuttheymanagedtotakemeaswell.??---It___acomfortablejourney.A.can’tbe????B.shouldn’tbeC.mustn’thavebeen?D.couldn’thavebeen根據(jù)Theywerealreadyfivepeopleinthecar,buttheymanagedtotakemeaswell.一句中的時(shí)態(tài),應(yīng)該是對(duì)過(guò)去情況的推測(cè)判斷,因?yàn)檐嚿弦呀?jīng)有5位人了,在帶上我一個(gè),可以斷定這一定是
8、一次不舒適的旅行。所以,本句表達(dá)的是對(duì)過(guò)去否定的推測(cè)判斷,應(yīng)該用c