module6unit4grammar and usage

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1、Unit4HelpingpeoplearoundtheworldUnrealconditionalsandthingshopedforordesiredGrammarandusageLookatthesituationandtheexpression.1.Weplannedtogoforapicniclastweek,butitwascancelledbecauseoftherain.Ifithadstoppedraining,wewouldhavegoneforapicniclastweek.2.Hewilltellyoueverythingwhenheishere,bu

2、thewon’tcomeuntilnextmonth.Ifhewereherenow,hewouldtellyoueverything.3.Weplannedtohaveafootballmatchtomorrow,butI’mnotsurenowastheweatherseemsratherbadandIthinkitmightsnowtomorrow.Thesnowmayaffectourscheduleandthematchmaybeputoff.Ifitshouldsnowtomorrow,wewouldhavetoputoffthematch.4.Theywon’

3、tcometoseeusastheydon’thaveenoughtime.Iftheyhadenoughtime,theywouldcometoseeus.1.主句与从句的动作发生在不同的时间，这时主、从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。Ifyouhadaskedhimyesterday,youwouldknowwhattodonow.（从句与过去事实相反，主句与现在事实相反。）Ifithadrainedlastnight(过去),itwouldbeverycoldtoday(现在).Ifyouhadlistenedtothetalkaboutt

4、heUNyesterday,youwouldknowtheanswertothequestionnow.IfJennywereintown,Iwouldhaveheardaboutit.2.含蓄条件句是指句中没有明显的虚拟条件句，而是利用其他手段来暗示存在虚拟条件。但是这类隐含式虚拟条件句往往都可以转化为if引导的条件句。可以用介词或介词短语，如otherwise、or和以with、without、incaseof或butfor开头的短语代替if从句来表示隐含的虚拟语气。With(IfIhad)moremoney,Icouldhelpmorepeopleinneed.Wit

5、hout(Ifwedidn’thave)theUNgoodwillAmbassadors,peopleworkingonprojectswouldnothavebeenencouraged.Butfor(Iftherewasno)thehelpfromtheUN,thosewomenwouldnothavebeenabletosetuptheirfund.I’mtoobusynow,otherwise/or(IfIweren’tsobusynow)Iwouldhelpyoudothework.Withoutelectricityhumanlife______quitedif

6、ferenttoday.A.is          B.willbeC.wouldbe        D.wouldhavebeenHehesitatedforamomentbeforekickingtheball,otherwisehe______agoal.A.hadscoredB.scoredC.wouldscoreD.wouldhavescoredCD[Practice]I_____throughthatbitterperiodwithoutyourgeneroushelp.（2011陕西卷）A.couldn’thavegoneB.didn’tgoC.wouldn’

7、tgoD.hadn’tgone解析：介词短语“without+名词”在句中作状语，本句中表示与过去事实相反，用虚拟语气，故选couldn’thavedone。A[高考真题]3.可以用evenif、asif、asthough和ifonly来引导非真实条件句。IwouldnevergothereevenifIweregiventhechanceto.Nicholasissmilingasifheknewnothingaboutit.MiketalksasthoughhehadbeentotheGreatWallbefo