英语四级语法 虚拟语气课件

虚拟语气一.普通虚拟条件句与现在事实相反1If Iwere you,I twBvuddrny.那末，虚拟语气现在时的句型为If Ihad thebook athand,I wouldrea toyou.从句+主语+动词过去式变主句主语+动词原+形+If bewere+would与过去事实相反[should,could‘might2If youhad goneto lastnight sgames,you wouldhave methim.那末，虚拟语气过去时的结构是If thepoliceman hadarrived earlier,he wseen theaccident.从句主语+过去完成时主句主语+或者+现在完If+成时should wouldjcould,might与将来事实相反3If heshould come tomorrow,I wouldgiv dictionaryheneeds.If Mr.Li were to dothe experimenttomorrow,he might

八、在+引的从句的谓语用普read theinstructions carefully.通过去“It is[high/about]time thmt时例如练习It ishigh[about,already]time thatwe wenItshigh timesomebody his tongue.A]hold BJholdsCJheld Djshouldhold©练习（虚拟语气部份）l.Iflhave boughtit.A.had knownB.knew C.were toknowD.should haveknown

2.Wecannot imaginewhat withoutour worldlikeelectric power.bB.has beenA.is B.will beC.wouldthe place.I wishI

3.My filesare alloverit wasgoing tocost so much,I wouldntthat Ithem in.A.have,can keeBp.have had,have keptcanC.will have,will beable Dt.o hkade.p couldkeep

4.in ouroffer,please contactus.A.If youinterested B.If youinterestC.Should yoube intereSt.edShould youinterest

5.1t isnecessary that the carwindows withthesechemicals.A.are totreatB.be treatedC.will betreated D.must betreated

6.1t wassuggested thata newsystem thecar.A.istofit B.fitted C.will befitted D.should befitted.

7.1t washis doctorwho advisedthat heA.changed B.change C.would changeD.had changed练习答案

1.A

2.C

3.D

4.C

5.B

6.D

7.B那末虚拟语气将来时的句型是从句主语+或者动+词原形+主句同虚拟语气现在时的主句结构If+should wereto练习l.If thisreport weremore accurate,it aninvaluabledocument.A.were B.had beenC.will beD.would beD

2.1in troubleif thepolice hadstopped A.were B.wouldhave beenC.would beD.had been⑻

3.What wouldyou doif warout.A.breaks B.could break

二、在引导的虚拟条件句中，若有可省C.had brokenoutD.weretobreak D去将提到主语前，形成倒装if were,had,sho,uld例如i£were,had,sho IdShouldthere bea meetingtomorrow,he you.Had itnot beenfor yourhelp,we wouldnot have练习achieved somuch.

1.before weleave theday havea aftertomorrow,wonderful dinnerparty.B]Would theyA]Had theyarrivedarriveD]Were theyC]Were theyarrivingto arriveD

2.Had heworked harder,he theexams.BJwouldA]must havegot throughhavegot throughDJcouldgetC wouldget throughthroughB

3.___enter universityone day,I wouldwork veryhard.A]Would Iever B]Ever wouldI C]Should IeverD]Ever shouldI三.由引昼的从句中用过去时表示对现在虚拟，用过去完成时表示对过去事实的虚拟例如as if/as thou hSammylooks用过去卜表与现在事实相反）as thoughhe nevergot asquare meal,but infact hisparentsfeed himv ryI II Heappeared（用过去完成式表与过去相反的事实]as ifhe hadknown nothing（用原形动词表与将来事实相反）The oldwoman heldhim asif shewou himgo again.练习would+

1.The Americanyoung manspeaks Chineseflu ifhe aChinese.A]is BjwereCjhas beenD]had been⑻）

2.The gardenlooked asif ityesterday.A]wasntwatered BdidntwaterC]hasntwatered DJhadntbeenwatered（）四.动词后宾语从句中的虚拟语气Dwish1wish hewere herenow.She wishesshe wouldalways remainyoung1wish youhad nothurt JimsomuchH.e isstill very练习depressed.___

1.I wishI longerthis morning,but Ihad toget upandcometoclass.A]had sleptBJslept C]might havesleptDJhave sleptA

2.They neverhave enoughresources andthey wishtheymore.A]have B]had CJwillhave DJhavehad五.在表示建议、命令、要求等动词的后面，其宾语从句的谓B语用原形动词”表示虚拟语气，或者省“should+略表示“要求”的should表示“提议、劝告、建议”的表示request,demand,require“决定、命令”的propose,suggest,advisorder,command表示“坚持的例如insistWe insistedthat he[should]be presentat theceremony.The directorsuggested thatshe shouldstudy more练习English beforegoing abroad.

1.My fatherdid notgo toNew York;the doctorsuggestedthat hego there.A not to Bwont Cjdoesnot DJnotD

2.Mike suncle insistsin thishotel.[

00.1]A]staying notB that he wouldnotstayC]nottostay D]thathenot staD

3.The obwouldrequirethat atoclocek erymorning.A]he willbe atthe factoryB]he beattfactoryC hewas atthe factoryDJhe hasbeenat thefactory六.上述动词的名词形式用虚拟语气B其后的从句,也用原形动词”表示虚拟语气，或者省去requirement.advice,order.suggestion,proposabcommand例如shouldshouldThe managesrsuggestion isthat thesecretary learn练习shorthand.

1.The suggestionthat themayor theprizes wasacceptedby everyone.A wouldpresent B]ought topresentCjpresent DJpresents©

2.One ofthe requirementsfor afire isthat thematerial toitsburning temperature.A]heated B]be heatedCJto beheatedDjbeing heated⑻

七、在形容词或者过去分词.主语从句”・结构中，主语从句的谓语也用原形动词表虚拟语气“It iswas+that.或者省略“should常用的形容词和过去分词有should表“要求”的表required,demanded,requested,desire“建议”的表“迫切、紧迫、重要”的有suggested表“命令”的necessary,essential,important例如orderedIt isnecessary thatFrank doaway withhis badhabit.It isdesired thatwe shouldget everythingready练习by tonight.

1.They kepttelling usthatvitiil Whaastwethere on time.A]must beBJwere CJbeDjwouldbe©

2.It isnecessary thatan efficientworker hisworkontime.A]accomplish BJaccomplishesC]can accomplishD]hasaccomplishedA。