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Unit3UnderstandingeachotherSectionⅢGrammar——虚拟语气(Ⅰ)语境自主领悟先观察原句1.IfIwereyou，Ishouldtrymybesttogotocollege.2.WereIyou，Ishouldtrymybesttogotocollege.3.Ifhehadgonetothepartylastnight，everythingwouldhavechanged.语境自主领悟先观察原句4.Hadhegonetothepartylastnight，everythingwouldhavechanged.5.Ifitweretobesunnytomorrow，wewouldgooutforapicnic.6.Wereittobesunnytomorrow，wewouldgooutforapicnic.语境自主领悟后自主感悟1.1、2句表示与事实相反的假设。2.3、4句表示与事实相反的假设。3.5、6句表示与事实相反的假设。4.句1、2、3、4、5、6句的句意分别相同吗？。5.句2、4、6共同的特点是：后的倒装句。现在过去将来相同省略if语法精要点拨一、非真实(虚拟)条件句中的虚拟语气1．与现在事实相反条件从句主句did(be多用were，非正式文体中也可用was)would/should/could/might＋动词原形IfIwereyou，Ishouldacceptthejob.如果我是你，我会接受这份工作。IfIhadtime，Iwouldgothere.如果我有空，我就去那儿。2．与过去事实相反条件从句主句haddonewould/should/could/might＋havedoneIfyouhadcomeearlier，youcould/wouldhavemetthestar.如果你早点来，你就会见到那位明星了。Ifhehadseenyouyesterday，hewouldhavereturnedyouyourbook.如果他昨天见到你，他就会还给你书的。3．与将来事实相反条件从句主句did/shoulddo/weretodowould/should/could/might＋动词原形Ifhisflightshouldbedelayed/weretobedelayed/weredelayed，wewouldfailtomeethim.万一他的航班被延误了，我们就接不到他了。Iftheseicebergsshouldmeltatthesametime，wewoulddrown.如果这些冰山同时融化的话，我们就都淹死了。[即时训练1]用所给词的适当形式填空①Thewaiterwouldserveyoumorequicklyifyou_______(speak)tohimmorepolitely.②Doyouthinkhe(lend)mehiscomputerifI______(ask)himnicely?③Iftheyreally(want)toseethehousenow，I___________(have)togetthepermissionoftheowner.spokewouldlendaskedwantedwouldhave二、非真实(虚拟)条件句的倒装if虚拟条件句中有were，had，should时，可把if省略，而把were，had，should放在主语前，构成倒装结构。WereIyou(IfIwereyou)，Iwouldtakethejob.如果我是你，我就会做那份工作。HadIhadtime(IfIhadhadtime)，Iwouldhavegoneandhelpedhim.如果我有时间，我就会帮助他了。Shouldhecome(Ifheshouldcome)，tellhimtoringmeup.万一他来，告诉他给我打电话。[名师点津]若虚拟条件句为否定句，否定词not不提前。HadInotbeenillthatday，Iwouldhavetakenpartintheparade.如果那天没生病，我会去参加集会的。[即时训练2]句型转换①IfIwereatschoolagain，Iwouldstudyharder.→again，Iwouldstudyharder.②Ifyouhadcomeearlier，youwouldcatchthebus.→，youwouldcatchthebus.③Ifhehadcomehereyesterday，hewouldhaveseenhisoldfriend.→hehereyesterday，hewouldhaveseenhisoldfriend.WereIatschoolHadyoucomeearlierHadcome[名师点津]Ifitweren'tfor.../Ifithadn'tbeenfor...相当于butfor...，意为“多亏了……，要不是……”。Ifithadn'tbeenforyouradvice，Ishouldhavefailed.＝Butforyouradvice，Ishouldhavefailed.要不是你的忠告，我会失败的。语法应用落实Ⅰ.单句语法填空1．Ifshehadbeenatschool，I(see)her.2．I(let)yougotoworknowifitweren'trainingsohard.3．(have)itnotbeenforthefreeticket，Iwouldnothavegonetoseethefilm.4．IfIhadhadherphonenumber，I(get)intouchwithher.wouldhavegotwouldhaveseenwouldletHad5．(be)Iyou，Iwouldbuyanewcar.6．Ifit(rain)tomorrow，themeetingwouldbeputoff.7．IfI(be)incharge，I'ddothingsdifferently.8．Wouldshetellusthetruthifwe(ask)her?9．What(happen)hadBobwalkedfarther，asfarastheriverbank?10．Butforthestorm，we(have)apleasantjourney，buthadtoturnbackhalfway.Wereweretorain/shouldrain/rainedwas/wereaskedwouldhavehappenedwouldhavehadⅡ.单句改错(每小题仅有1处错误)1．Ifyoutookmyadvice，youwouldnothavefailedintheexams.2．IfIwasyou，I'dstartlookingforanotherjob.3．Ifithadn'tbeenforhishelp，Iwouldn'tsucceed.took→hadtakenwas→weresucceed→havesucceeded4．Ifyouaskedheryesterday，youwouldhaveknownwhattodothen.5．Ifitsnowedtomorrow，Iwon'tgothere.asked前加hadwon't→wouldn't/snowed→snows