小编为备考的同学们整理了2019年12月英语四级高级语法讲解：虚拟语气，希望可以为大家带来帮助，预祝大家高分通过。

虚拟语气

1.if引导的虚拟语气

2.倒装形式

WereIyou(=ifIwereyou),Iwouldgetupearlyinthemorning.Hadyouarrivedatthestationtenminutesearlieryesterday(=Ifyouhadarrived…),youcouldhavecaughtthetrain.Shoulditrain(=Ifitshouldrain),thecropswouldbesaved.

【2】馒头面条原理

【3】固定句型Itistimethat...Wouldratherthat.....

(1).Iwouldratherhecametomorrowthantoday.

(2).Johnwouldratherthatshehadnotgonetothepartyyesterdayevening.

(4).Iwouldrathereverythinghadn'thappenedinthepast.Itis(was)形容词(或过去分词)that……"结构中的虚拟语气

1.Itisnecessarythatwe(should可省略,下同)haveawalknow.

2.Itwasnecessarythatwe(should)makeeverythingreadyaheadoftime.

3.Itisrequiredthatnobody(should)smokehere.

4.Itisimportantthateverypupil(should)beabletounderstandtheruleofschool.

练习

1.He’llbebusythisafternoon.Ifhe___free,he___tothecinemawithyou.A.weretobe;mightgoB.amgoingtobe;willgoC.willbe;mighthavegoneD.is;willgo

2.WhenEdisondied,itwasproposedthattheAmericanpeople_____allpowerintheirhomes,streets,andfactoriesforseveralminutesinhonorofthisgreatman.A.turnoffB.turnedoffC.wouldturnoffD.hadturnedoff

3.HadIknownhername,_____.A.ordoessheknowmine?B.andwheredoesshelive?C.IwouldhaveinvitedhertolunchD.shewouldbebeautiful

4.I’dratheryou______bytrain,becauseIcan'tbeartheideaofyourbeinginanairplaneinsuchbadweather.A.wouldgoB.shouldgoC.wentD.hadgone

5.Thevictim________(本来会有机会活下来)ifhehadbeentakentohospitalintime.wouldhaveachancetosurvive(06.12翻译)

6.Theprofessorrequiredthat________(我们交研究报告)。wehandinourresearchreport(s)(06.6翻译)

7.IfSept.11hadneverhappened,theairportworkerswouldnothavebeenarrestedandcouldhavegoneonquietlylivinginAmerica,probablyindefinitely.(06.6阅读)