高中英语 m7u21L1grammar if课件 北师大版选修7 课件VIP专享VIP免费

Module7Unit21HumanBiologyLessonOneGrammarInthisclass,wewillbeableto1.reviseConditionals2.learnandexperienceMixedConditionals3.useMixedConditionalstoexpresstheSs’regretcorrectly.ObjectivesRevision•1.IfIdon’teatbreakfast,Ialwaysgethungryduringclass.•2.Iftherainstops，thematchwillbegin.••3.Ifmybrotherwerehere,everythingwouldbeallright.•4.Ifhehadseenyouyesterday,hewouldhaveaskedyouaboutit.theZeroConditionaltheFirstConditionaltheSecondConditionaltheThirdConditionalSomethingalwaystruePossibleinthefutureImpossibleinthepresentOrunlikelyinthefutureUnrealsituationsinthepasttheConditionalstheConditionalstheConditionalstheConditionalsZeroZeroThirdThirdFirstSecond真实条件句theZeroConditionaltheFirstConditional非真实条件句theSecondConditionaltheThirdConditionalZeroFirstSecondThird描述一件事总是紧跟另一件事发生的规律和情景用来谈论将来发生的事情；或用来提出建议、要求，或命令用来谈论想象的，将来不可能发生的事情，或现在不可能的情况表示过去不真实的情景，想象过去未发生的事情种类if条件句谓语主句谓语零条件句一般现在时一般现在时第一条件句一般现在时will+动词原形第二条件句一般过去时would/could/might+动词原形第三条件句过去完成时would/could/might+have+过去分词summaryTargetGrammar１.IfPeterwasamoreskillfulplayer,hewouldhavescoredmorepoints.2.BenJohnsonwouldstillbethe100metersworldrecordholder,ifhehadnotbeencaught.3.Ifhehadbrokenthatrecord,hewouldbeaworld-famousrunnernow.Thinking１.IfPeterwasamoreskillfulplayer,hewouldhavescoredmorepoints.DiscoveryIf+PastSimple,would+havedoneAsin2ndconditionalForm:Asin3ndconditional说明说明非真实的现在情景．表达想象中的现在状态，可能对过去有影响．2.BenJohnsonwouldstillbethe100metersworldrecordholder,ifhehadnotbeencaught.DiscoveryIf+PastPerfect,would+infinitiveAsin3ndconditionalForm:Asin2ndconditional说明说明想象的，有可能导致现在结果的过去情景3.Ifhehadbrokenthatrecord,hewouldbeaworld-famousrunnernow.DiscoveryIf+PastPerfect,would+infinitiveAsin3ndconditionalForm:Asin2ndconditional注意：在这种条件句中，虚拟条件主句和从句的动作发生的时间不一致，因此，主句和从句的谓语动词要根据各自所指的不同时间选择适当的动词形式。PracticeIfI_______________allnight,I_____________tirednow.hadn’tworkedwouldn’tfeel现在过去IfI______you,I_______________shoppingyesterday.werewouldhavegone现在过去１．IfIhadadictionary,Iwouldhavelent(lend)ittoyouyesterday.２．Iftheyhadstudied(study)hard,theywouldbecollegestudentsnow.３．IfMaryhadn’tbeencaught(notbecatch)intherainthatday,shewouldnothave(nothave)afevernow.４．IfIwereyou，Iwouldn’thavemissed(notmiss)thefilmlastnight．５．Ifyouhadasked(ask)himwhenyousawhimlasttime，youwouldknow(know)whattodonow．Completethesentenceswiththecorrectformoftheverbsinbrackets.•Rewritethesentences,usingthemixedConditionals.•１．Youdidn’thaveanybreakfast,soyouarehungrynow.•２．Youdidn’tlistentotheteacher,soyoucan’tworkoutthemathsproblemnow.Ifyouhadhadbreakfast,youwouldn’tbehungrynow.Ifyouhadlistenedtotheteacher,youcouldworkoutthemathsproblemnow.•３．Hehurthislegsinthelasttraining,sohewillnottakepartinthecomingrunningrace.•４．Iwasn’tconfidentthen,soIdon’tbecomeateachernow.•５．Helikesdriving,sohebecameataxidriver.Ifhehadn’thurthislegs,hewouldtakepartinthecomingrunningrace.IfIhadbeenmoreconfidentthen,Iwouldbecomeateachernow.Ifhedidn’tlikedriving,hewouldn’thavebecameataxidriver.AccordingtotheChinese,completethefollowingsentences.•1.如果他遵照医生...