if引导的虚拟语气条件句

虚拟语气LearningGoals：1.Knowingwhatthesubjunctivemoodrefersto.2.Knowingthedifferenceformsofthesubjunctiveforms.3.Masterthestructureofthesubjunctivemoodabout“if”.4.Practices.虚拟语气概念：1.表示说话人所说的话不是一个事实，而是一个假设、怀疑、猜测等（常见于条件状语从句或让步状语从句）。2.表示说话人的愿望、建议、要求、命令等（常见于名次性从句）。简单来说：不是事实或不大可能发生的事情，用虚拟语气来表述。If引导的虚拟条件句注意：要区分if引导的真实条件句和if引导的虚拟条件句表示虚拟的，几乎无法实现的时候，采用虚拟语气。If引导的虚拟条件句TYPES:特殊：错综时间/倒装句省略IF等与过去事实相反与现在事实相反与将来事实可能相反一.与过去事实相反Ifhehadgotupearlier,hecouldhavecaughtthetrain.If引导的虚拟条件句主句与过去事实相反的假设If+主语+had+动词的过去分词（即：If+动词过去完成时）主语+would(should/might/could)+havedone二.与现在事实相反IfIwereyou,Iwouldbuyaredskirt.IfIhadamilliondollars,Iwoulddonate30%ofittothecharity.If引导的虚拟条件句主句与现在事实相反的假设If+主语+动词过去式（be动词一般用were）即：If+一般过去时If+主语+would(could/should/might)+动词原形三.与将来事实可能相反Ifitrainedtomorrow,Iwouldn’tattendtheparty.Ifitweretoraintomorrow,Iwouldn’tattendtheparty.Ifyoushouldcometomorrow,youwouldfindthenewmanagerworkingintheoffice.If虚拟条件句主句与将来事实可能相反的假设1.If+主语+动词过去式2.If+主语+wereto+动词原形3.If+主语+should+动词原形主语+would(could/should/might)+动词原形特例1.错综时间条件句定义：主句和从句动作发生的时间不同例1）Iftheyhadstudiedhard,theycouldfinishtheworkinaveryshorttime.如果他们当时刻苦学习，现在就能快速完成这份工作了（从句说明过去，主句说明现在）。2）IfIwereyou,Iwouldhavegonetoherbirthdaypartyyesterday.如果我是你，我就去参加她昨天的生日聚会了（从句说明现在，主句说明过去）。♦要根据动作发生的时间选择恰当的动词形式。与过去相反，以前没有刻苦学习与现在事实相反，现在没有快速完成特例2.省略If的条件从句如果条件句中有were/had（助动词）/should时，可使用倒装句结构——省略If，把were/had（助动词）/should放句首。如果条件句是否定句时，not应置于主语后，不能与were/had（助动词）/should等缩略成weren’t/hadn’t/shouldn’t.例：HadIseenhimthen,Iwouldhavebeenveryhappy.=IfIhadseenhimthen,Iwouldhavebeenveryhappy.ShouldIhavetime,Iwouldgowithyou.=IfIshouldhavetime,Iwouldgowithyou.WereInotsobusy,Iwouldgototheconcert.=IfIweren’tsobusy,Iwouldgototheconcert.Practice1.Ifyouhadtoldmeinadvance,I____himattheairport.A.wouldmeetB.wouldhavemetC.wouldhadmetD.shouldmeetPractice1.Ifyouhadtoldmeinadvance,I____himattheairport.A.wouldmeetB.wouldhavemetC.wouldhadmetD.shouldmeet2.Ifit___tomorrow,Iwouldnotattendtheparty.A.rainedB.rainsC.hadrainedD.weretorain3.IwouldhavegonetothemeetingifI__time.A.hadhadB.havehadC.hadD.wouldhavehadIfit___tomorrow,Iwouldnotattendtheparty.A.rainedB.rainsC.hadrainedD.weretorain3.IwouldhavegonetothemeetingifI__time.A.hadhadB.havehadC.hadD.wouldhavehadIfit___tomorrow,Iwouldnotattendtheparty.A.rainedB.rainsC.hadrainedD.weretorain3.IwouldhavegonetothemeetingifI__time.A.hadhadB.havehadC.hadD.wouldhavehad4.Ifmefather___herenow,he___tellmewhattodo.A.were;wouldB.was;illC.hadbeen;wouldD.is;ill5.Ifhe___myadvice,hewouldn’thavelosthisjob.A.followedB.shouldfollowC.hadfollowedD.wouldfollow4.Ifmefather___herenow,he___tellmewhattodo.A.were;wouldB.was;illC.hadbeen;wouldD.is;ill5.Ifhe___myadvice,hewouldn’thavelosthisjob.A.followedB.shouldfollowC.hadfollowedD.wouldfollow4.Ifmefather___herenow,he___tellmewhattodo.A.were;wouldB.was;illC.hadbeen;wouldD.is;ill5.Ifhe___myadvice,hewouldn’thavelosthisjob.A.followedB.shouldfollowC.hadfollowedD.wouldfollow6.IfI__inthe22ndcentury,I__myvocationinaverydifferentway.A.shouldlive;wouldspendB.willlive;shouldspendC.areliving;shouldhavespentD.willbeliving;wouldhavespent7.__itraintomorrow,wewouldhavetoputoffthevisittoMountainTai.A.WereB.ShouldC.WouldD.Will6.IfI__inthe22ndcentury,I__myvocationinaverydifferentway.A.shouldlive;wouldspendB.willlive;shouldspendC.areliving;shouldhavespentD.willbeliving;wouldhavespent7.__itraintomorrow,wewouldhavetoputoffthevisittoMountainTai.A.WereB.ShouldC.WouldD.Will6.IfI__inthe22ndcentury,I__myvocationinaverydifferentway.A.shouldlive;wouldspendB.willlive;shouldspendC.areliving;shouldhavespentD.willbeliving;wouldhavespent7.__itraintomorrow,wewouldhavetoputoffthevisittoMountainTai.A.WereB.ShouldC.WouldD.Will