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第十三節虛擬語氣虛擬語氣是謂語動詞的一種特殊形式,用來表達假設、主觀愿望、猜測、建議、可能或純粹的空想等非真實情況。if非真實條件句中的虛擬語氣1.if非真實條件句的基本用法由if引導的非真實條件句表示對現在、過去、將來的事實進行假設時,主句與從句中謂語動詞的形式可以分為以下三類:假設類型條件從句謂語動詞形式主語謂語動詞形式與現在事實相反動詞過去式(be用were)should/would/could/might+動詞原形與過去事實相反had+過去分詞should/would/could/might+have+過去分詞與將來事實相反動詞過去式,(should+)動詞原形,wereto+動詞原形should/would/could/might+動詞原形Thevictimwouldhavehadachancetosurviveifhehadbeentakentohospitalintime.遇難者如果及時送往醫院,他本來就有機會活下來的。(與過去事實相反)IfIknewhistelephonenumber」wouldtellyou如果我知道他的電話號碼,我會告訴你。(與現在事實相反)IfthereshouldbeaheavysnownextSunday,wewouldnotgoskating.如果下周日下大雪的話,我們就不去滑冰了。(表將來)[專四真題]Iftherewerenosubjunctivemood,English mucheasiertolearn.couldhavebeenB.wouldbeC.willbeD.wouldhavebeen譯文:如果沒有虛擬語氣,英語學習起來就會更容易了。分析:本題表示與現在事實相反的假設。表現與現在事實相反,條件從句用一般過去時,主句使用should(would)+動詞原形,故B為答案。A項couldhavebeen是對過去事實的假設,與從句所表示的現在事實不吻合;C項willbe不可以用于虛擬語氣中;D是與過去事實相反的假設的虛擬語氣從句形式。省略if的虛擬條件句的用法在虛擬條件句中,如果從句中含有were,had或should等詞時,可將if省去,把were,had或should等提到主句之前,引起倒裝。如果句中沒有were,had或should等,則不能省略if,也不能用倒裝結構。[專四真題] forthefactthatshebrokeherleg,shemightpassedtheexam.HaditnotbeenB.Hadn'titbeenC.WasitnotD.Wereitnot譯文:要不是因為摔斷了腿,他或許已經通過了考試。分析:由于主語從句使用了mighthavedone結構,說明此句表示的內容與過去事實相反,故條件狀語從句中應該使用haddone結構。若要將虛擬條件句中的連詞省去,則需將助動詞提到主語前面,否定詞位置不變,因此A項Haditnotbeen為正確答案。錯綜時間虛擬條件句有些時候,條件從句表示的動作和主語表示的動作發生在不同的時間,比如一個是過去發生的,一個是現在發生的。這時,主句和從句的謂語動詞要根據自己所指的不同時間選用適當的虛擬形式。如:Iftheyhadinvitedme,Iwouldgowiththemnow.如果他邀請過我,我現在就和他們一起走了。[專四真題] ifIhadarrivedyesterdaywithoutlettingyouknowbeforehand?A.Wouldyoubesurprised B.WereyousurprisedC.HadyoubeensurprisedD.Wouldyoubeensurprised譯文:如果我昨天不事先打招呼就來了,你會覺得吃驚嗎?分析:這是一個錯綜時間虛擬條件句。從句是對過去事實的假設,而主句問的是回答者現在的感受,因此主句應該為Wouldyoubesurprised,答案為A。介詞或介詞短語表示虛擬條件有些介詞或介詞短語隱含條件之義,其虛擬形式與if引導的非真實條件狀語從句類似,需根據從句所用的時態,來選擇主句的謂語形式。這些詞包括:without(沒有),butfor(要不是),intheabsenceof(如果沒有),wereitnotfor(要是沒有),butthat(若不是)等。Butfortheirhelp,wecouldnothavefinishedtheworkontime要不是他們的幫助,我們就不可能按時完成那項工作。(表過去)Withoutelectricity,therewouldnotbemodernindustry沒有電,就沒有現代工業。(表現在)Intheabsenceofgravity,therewouldbenoairaroundtheearth如果沒有重力,地球周圍就沒有空氣。(表現在)賓語從句中的虛擬語氣wish引導的賓語從句中的虛擬語氣主要形式為:表示對現在的假設時,從句的謂語動詞為一般過去式(be動詞用were)。表示對過去的假設時,從句的謂語動詞為“had+過去分詞”或“could/wouldhave+過去分詞”表示對將來的愿望時,從句的謂語動詞用“would/could/might+動詞原形”SometimesIwishIlivedinadifferenttimeandadifferentplace.有時候我希望自己生活在一個不同的時間和空間里。(表現在)IwishIwereasstrongasyou我希望像你一樣健壯。(表現在)Hedidn'tgototheparty,buthedoeswishhehadbeentheie.他沒有去舞會,不過他很希望自己當時在那里。(表過去)Iwishpriceswouldcomedown我希望物價能降下來。(表將來)hadhoped表示過去沒有實現的愿望,意為“本來想要,但愿”,其后的賓語從句用“would+動詞原形”表示虛擬。IhadhopedthatIwouldn'tboreyoubytalkingaboutmychildren.但愿我談論我的孩子沒有使你厭倦。wouldrather,wouldsooner,wouldjustassoon,mightaswell,wouldprefer之后的兵語從句用虛擬語氣表示愿望,意為“寧愿”,“但愿”。表示對現在或將來的愿望:wouldrather/sooner+主語+動詞過去時(be動詞用were);表示對過去的愿望:wouldrather/sooner+主語+動詞過去完成時。IwouldratherIhadnotgonetothepartyyesterdayevening.要是我昨天晚上沒有去參加那個晚會就好了。(表過去)Iwouldrather/sooneryoucametomorrow我寧愿你明天來。(表將來)在表示命令、建議或要求等動詞后的賓語從句中要求用虛擬語氣,謂語形式為“(should)+動詞原形”。這類動詞有:ask(要求),advise(建議),suggest(建議),request(請求;要求),commend(推薦),decide(決定),determine(決定),insist(堅持認為),intend(打算),prefer(更喜歡;寧愿),propose(提議),order(命令),recommend(推薦),imagine(想象)等。Isuggestedthatyou(should)trytounderstandhim.我曾建議你試著去理解他。Theydemandedthattheaggressortroops(should)bewithdrawnimmediately.他們要求立即撤出侵略軍?!緦K恼骖}】Mybossorderedthatthelegaldocuments tohimbeforelunch.besentB.weresentC.weretobesentD.mustbesent譯文:我老板下令午飯前必須交給他那些法律文件。分析:若主句謂語動詞為suggest,demand,order,propose,request等表示建議、要求、命令等語氣的動詞,后面的賓語從句要用虛擬語氣,謂語動詞用“(should+)動詞原形”因此選A。主語從句中的虛擬語氣虛擬語氣用于主語從句的常見結構是“Itis+形容詞/名詞/過去分詞+that引導的主語從句”,主語從句的謂語動詞為(should)+動詞原形”適用此結構的詞包括:形容詞:advisable(可取的,明智的),appropriate(適當的),desirable(想要的),essential(必需的),fundamental(基本的),imperative(命令的),important(重要的),necessary(必要的),proper(適當的),urgent(緊急的,急迫的),vital(至關重要的)等。名詞:apity(可惜),ashame(恥辱;羞愧),nowonderthat(難怪)等。過去分詞:arranged(安排,計劃),desired(渴望),requested(請求),suggested(建議),recommended(推薦),required(必需),demanded(要求)等。Itisessentialthattheseapplicationforms(should)besentasearlyaspossible.重要的是把這些申請表盡早寄出去。Itishighlydesirablethatanewpresident(should)beappointedforthiscollege.大家非常希望一位新校長來管理這所大學?!緦K恼骖}】Itisimperativethatthegovernment moreinvestmentintotheshipbuildingindustry.attracts B.shallattract C.attractD.hastoattract譯文:勢在必行的是,政府應該在船塢制造業吸引更多的投資。分析:Itisimperativethat-表明that從句需要使用虛擬語氣,其形式為“should+動詞原形”其中should可以省略,故答案為C。表語從句和同位語從句中的虛擬語氣在表示建議、命令、主張、目的、愿望等名詞后面的表語從句和同位語從句中的常用虛擬語氣,謂語動詞的形式為(should)+動詞原形”這類名詞有:suggestion(建議),proposal(提議,建議),requirement(要求),order(命令),demand(要求),decision(決定),advice(建議),desire(要求),idea(主意),importance(重要性),instruction(指示),necessity(需要;必需),motion(提議),preference(優先考慮),recommendation(推薦;建議),resolution(解決),request(要求)等。Hisdesireisthathe(should)beburiednexttohiswife.他希望死后與妻子合葬。Thesuggestionthatthemayor(should)presenttheprizeswasacceptedbyeveryone.每個人都接受了讓市長來頒獎的建議。【專四真題】Heleftordersthatnothing toucheduntilthepolicearrivedhere.A.shouldbe B.oughttobeC.mustbeD.wouldbe譯文:他留下命令說警察到這里之前不得碰任何東西。分析:orders表明其后同位語從句中的謂語動詞要用虛擬語氣,形式為(should+)動詞原形”故選項A正確。狀語從句中的虛擬語氣在asif或asthough引導的方式狀語從句中,若從句的內容并非現實,則需用虛擬語氣。表示從句與主句動作同時發生,從句謂語動詞用were或動詞過去式;表示從句動作可能在將來發生,從句謂語動詞用“could/would+動詞原形”表示從句謂語的動作發生在主句動作之前,從句謂語動詞用“had+過去分詞”。
Itseemsasifitwas(were)springalready.現在仿佛已經是春天了。(表現在)Itseemsasifhewouldrecover.看來他好像會康復。(表將來)ItseemsasifshehadbeentoEngland.好像她到過英國似的。(表過去)*注意:asif引導方式狀語從句時,若說話人對從句所表達的內容較有把握,則用陳述語氣。如:Itlooksasifitisgoingtorain.看來要下雨了。虛擬語氣用在evenif,as等引導的讓步狀語從句中,從句謂語可參照由if引導的虛擬條件從句的謂語,用一般過去時、過去完成時或動詞原形。注意evenif從句里可用虛擬動詞表示與事實相反,eventhough則是就事論事,不用虛擬。Evenifheweremybrother,Iwouldnottrusthim.即使他是我哥哥,我也不會信任他。(他不是我哥哥)Eventhoughheismybrother,Idon'ttrusthim.盡管他是我哥哥,我還是不信任他。(事實上他是我哥哥)Evenifitrainstomorrow,wewon'tchangeourplans.即使明天下雨,我們也不會改變計劃。EvenifIhadmethim,Iwouldn'thavetoldhimaboutourplan.即使我見過他,我也不會告訴他我們的計劃?!緦K恼骖}】Muchas ,Icouldn'tlendhimthemoneybecauseIsimplydidn'thavethatmuchsparecash.A.Iwouldhavelikedto B.IwouldliketohaveC.IshouldhavetolikeD.IshouldhavelikedtoC.IshouldhavetolikeD.Ishouldhavelikedto[譯文]盡管我很想借錢給他,但是沒法借,因為我沒有那么多的閑錢。【詳解】muchas引導讓步狀語從句,表示“盡管”,該從句為與過去相反的虛擬語氣,謂語使用wouldhavedone,故答案為A,其中to后省略了lendhimthemoney以避免重復。D項表示“應該”,而不表意愿。3.在whatever,whichever,whenever,whoever,wherever,however,no3.在whatever,whichever,whenever,whoever,wherever,however,nomatterwh-等引導的讓步狀語從句中,從句虛擬語氣的結構為"may+動詞原形(指現在或將來)"或"may+完成式(指過去),主句結構不限。Iwillbewaitingforhimnomatterhowlatehemaycome不管他來得多么晚,我都會一直等他。在though,although等引導的讓步狀語從句中,從句虛擬語氣結構為should+動詞原形,主句結構不限。AlthoughThoughheshouldoftenbelate,heisagoodstudent.盡管他經常遲到,他還是個好學生。lest,incase,forfearthat以防,萬一,唯恐引導目的狀語從句常用虛擬語氣,謂語動詞用should+動詞原形。Lestforfearthat從句中的should可以省去,incase從句中的should通常不省略,但是incase引導的從句也可用陳述語氣。Hetooktheraincoatwithhimlestit(should)rain他帶上了雨衣,以防下雨。Iobeyedherlestshe(should)beangry我得順著她,免得她生氣。IwillnotmakeanoiseforfearthatI(should)disturbyou我不會做聲的,以免打擾你。Incasehecomes,letmeknow萬一他來了,告訴我一聲。(陳述語氣)其他句型中的虛擬語氣Itis(high/about)time結構在Itis(high/about)timethat...后面跟虛擬語氣,謂語動詞通常用一般過去式,有時也用should+動詞原形,意為該是干?…的時候了。如:Itishightimethatwewenthomenow.我們現在該回家了。*注意:句型It'sthefirst/second/thirdtimethat...表示一種經歷,that從句要使用完成時態。如:It'sthefifthtimethathehasrungyouinaweek.這是他在一周之內第5次給你打電話了。[專四真題]Thatwasnotthefirsttimeheus.Ithinkit'shightimewe strongactionsagainsthim.A.betrayed...take B.hadbetrayed...tookC.hasbetrayed...took D.hasbetrayed...take譯文:那不是他第一次背叛我們。我認為我們該對他采取強硬措施了。分析:當句子里有序數詞first/second/third...時,后面的定語從句要用完成時態,前一個句子是過去時,所以應該用過去完成時,即hadbetrayed;后一句使用了Itishightime...句型,其從句的謂語動詞要用過去式,表示對現在事實的虛擬,即took.2.ifonly引導的感嘆句表示“但愿,要是??就好了”,其用法和wish基本相同,只是感情色彩更強烈。表示現在的情況,謂語動詞用過去式;表示過去的情況,謂語動詞用過去完成式;表示將來的情況,謂語動詞用“would/could+動詞原形”Ifonlyhewerehere!如果他在這里就好了?。ū憩F在)IfonlyIhadnotbeenbusyyesterday!要是昨天我不忙該多好啊?。ū磉^去)Ifonlyyouwouldlistentoouradvice.要是你會聽我們的建議就好了。(表將來)3.intended/meant/hoped/wished/planned或was/were+不定式完成式或hadintended/planned/meant/hoped/wished+不定式一般式暗示虛擬語氣,表示“本計劃/打算/想要??”。Iintendedtohavecalledonyou,butIwasbusyatthattime.我本來打算要拜訪你的,但是當時很忙。典型真題訓練1.I thepartymuchmoreiftherehadn'tbeenquitesuchacrowdofpeoplethere.A.wouldenjoyB.willhaveenjoyedC.wouldhaveenjoyedD.willbeenjoyedIfyouexplainedthesituationtoyoursolicitor,he abletoadviseyoumuchbetterthanIcan.A.wouldbe B.willhavebeen C.wasD.wereIfyou insuchahurryyou sugarintothesauceinsteadofsalt.A.werenot,wouldnotputB.were,wouldputC.hadbeen,wouldhaveputD.hadnotbeen,wouldnothaveput theirhelp,wewouldnothavesucceeded.A.Hadn'tbeenforB.HaditnotbeenforC.Ithadn'tbeenforD.HadnotitbeenforSheaskedthatshe allowedtoseehersoninpolicecustody.A.wouldbeB.couldbeC.beD.wasItisnecessarythathe theassignmentwithoutdelay.A.handinB.handsinC.musthandinD.hastohandinItisabsolutelyessentialthatWilliam hisstudyinspiteofsomelearningdifficulties.A.willcontinueB.continuedC.continueD.continuesIfonlyI playtheguitaraswellasyou!A.wouldB.couldC.shouldD.might you furtherproblemswithyourprinter,contactyourdealerforadvice.A.If,hadB.Have,hadC.Should,haveD.Incase,hadItwasrecommendedthatpassengers smokeduringtheflight.A.notB.neednotC.couldnotD.wouldnotIfyouhavereallybeenstudyingEnglishforsolong,it'sabouttimeyou abletowritelettersinEnglish.A.shouldbeB.wereC.mustbeD.areIwastohavemadeaspeechif .A.IwasnotcalledawayB.nobodywouldhavecalledmeawayC.IhadnotbeencalledawayD.nobodycalledmeawayIt'sgettinglate.I'dratheryou now.A.leftB.leaveC.areleavingD.willleaveIt'shightimewe cuttingdowntherainforests.A.stoppedB.hadtostopC.shallstopD.stopIfonlythepatient adifferenttreatmentinsteadofusingtheantibiotics,hemightstillbealivenow.A.hadreceivedB.receivedC.shouldreceiveD.werereceivingyouradvice,IwouldhavemadethewrongdecisionA.Hadn'titbeenforB.HaditnotbeenforC.HaditbeenforD.Hadnotitbeenfor“IfIwereyou,Iwouldn'twaittoproposetoher.”Thesubjunctivemoodinthesentenceisusedto .A.alleviatehostilityB.expressunfavorablefeelingsC.indicateuncertaintyD.makeasuggestionAtthatmoment,withthecrowdwatchingme,Iwasnotafraidintheordinarysense,as ifI alone.A.wouldhavebeen..hadbeenB.shouldbe...hadbeenC.couldbe...wereD.mighthavebeen.were yourtimelyadvice,Iwouldneverhaveknownhowtogoaboutthework.A.Unless B.ButforC.Exceptfor D.NotforThegeneral'scommandwasthatthesoldiers__theirfortandcarryoutmoreimportanttask.A.wouldleaveB.leaveC.leftD.haveleftIt'sdesiredthatshe toteachusatleasttwiceaweek.A.comesB.willcomC.comeD.maycomeWhichofthefollowingsentencescontainssubjunctivemood? .Lucyinsistedthathersongethomebefore5o'clock?Sheusedtodrivetowork,butnowshetakesthecitymetro.Walkstraightahead,anddon'tturntillthesecondtrafficlights.PaulwillcancelhisflightifhecannotgethisvisabyFriday.23.IfIknewJapanese,I fortheposition.A.wouldapplyB.willapplyC.mayhaveappliedD.willhaveappliedHewouldhavefinishedhiscollegeeducation,buthe toquitandfindajobtosupporthisfamily.A.hadhadB.has C.hadD.wouldhave___,hewouldnothaverecoveredsoquickly.A.Hadn'thebeentakengoodcareofB.HadhenotbeentakengoodcareofC.HadnothebeentakengoodcareofD.Hadhebeennottakengoodcareof虛擬語氣模擬練習題1.___myumbrellawithmewhenIcameoutthismorning,Ishouldnotbesowetnow.A.HadItakenB.WillItakeC.HaveItakenD.WouldItaken2.ProfessorJamessuggestedthathisstudents acompositionaboutairpollution.A.writeB.towriteC.wroteD.hadwritten3.Ifyouhadtoldthetruthtoyourprincipal,he abletogiveyoumuchbettersuggestionsthanIcan.A.wereB.wasC.willhavebeenD.wouldbe4.TheartexhibitionwasnotasgoodasIhadexpected.IwishI toit.A.hadn'tgoneB.haven'tgoneC.didn'tgoD.couldnothavegoneIfHenry___undertheladdertocatchherwhenshefell,shecouldn'tbesmilinglikethisnow.A.didn'tstoodB.hadn'tstoodC.doesn'tstoodD.hasn'tstoodAllsubstances, ,liquidororsolid,aremadeupofatoms.A.betheygasesB.whethertheyaregasesC.theyaregasesD.theycanbegasesPutanextrablanketoverthebabyforfearthat A.hecatchescoldB.heshouldcatchcoldC.hecaughtcoldD.hebecatchingcoldHelen___withherclassifshehadbeenabletomeetallofthecourserequirementintime.A.willgraduateB.wouldhavegraduatedC.wouldgraduateD.hasgraduatedLookattheterriblesituationIamin.IfonlyI youradvice.A.followB.hadfollowedC.wouldfollowD.havefollowedIfyou___morethanaweektotakecareofyourbabyinthehospital,askthetopmanagerforaleave.A.willneedB.wouldneedC.shouldneedD.shallneedItisessentialthatmisunderstanding___duringbusinessnegotiationsA.beavoidedB.isavoidedC.willbeavoidedD.hastobeavoided12.Idon'tthinkitisadvisablethatshe___herlittlebabyofhisfreedomtospendthesparetimeashewish.A.depriveB.deprivesC.deprivedD.hasdeprived13.___ifIhadattendedyourhomepartyyesterdaywithoutinformingyoubeforehandA.WouldyouhavebeensurprisedB.HadyoubeensurprisedC.Wereyousurprised D.Wouldyoubesurprised14.Itisrecommendedthattheproject___untilallthepreparationshavebeenm
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