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空白演示在此输入您的封面副标题Unit4GrowingupGrammar(II)B:Usingsince,tillanduntil1.Howtousesincesince译作“自从…以来”(1)接时间点:如Ihavestayedinthatcountrysince1995.要求:谓v.用现在完成时,而且须是延续性动词。(2)接一段时间+ago:如Theyhavelivedinthathousesincetwoyearsago.要求:谓v.用现在完成时,而且须是延续性动词。(3)接时间状语从句:如IhavelovedhersinceImetherlasttime./Lilyhasstayedathomesincesheleftschool.要求:主句的谓v.用现在完成时,而且须是延续性动词;从句的谓v.用一般过去时,而且须是终止性动词。(4)用于句型“It’s/Ithasbeen+一段时间+since+时状语从句”中,译作“自从…以来,已经…(时间)了”。如It’s/hasbeenthreemonthssincehemovedtothiscity要求:主句的谓v.用一般现在时或现在完成时;从句的谓v.用一般过去时,而且须是终止性动词。(5)用于句型“一段时间+haspassedsince+时间状语从句”中,译作“自从…以来,…(时间)已经过去了”。如上个例句还可写成:Threemonthshaspassedsincehemovedtothiscity.要求:主句的谓v.用现在完成时,而且动词必须是haspassed;从句的谓v.用一般过去时,而且须是终止性动词。(6)注:当since用于否定句时,主句的谓v.可以是终止性动词。如Hehasn’tseenthefilmsincelastmonth.(7)相关词组:“从那时起”:eversince、sincethen、fromthenon.注:eversince作为一个词组,放句尾可单独使用如:Ihavegivenupsmokingeversince.另外,还可在since后接句子。since前加ever,只是加重语气而已。如:IhavegivenupsmokingeversinceIcaughtabadcough.(8)since还可引导原因状语从句,译作“由于;因为”,相当于because。如:Sincehewaslazy,hedidn’tfinishhishomework.2.HowtousetillanduntilTillanduntilmeanuptoacertainlytime.Untilcanbeplacedatthebeginningorinthemiddleofthesentence,buttillisusuallyusedinthemiddleofthesentence.a.用于肯定句作“直到……为止”解时,主句的动词一般是延续到until/till所表示的时间为止。例如:1).Hewaitsuntil/tillthechildrenareasleep.他等着直到孩子们睡熟。2).Ishallstayhereuntil/tilltwelveo'clock.我将留在这里一直到十二点钟。b.用于否定句作“在……以前”、“直到才”解时,主句的动词一般是非延续性的,它所表示的动作直到until/till所表示的时间才发生。例如:Hecouldn'trideuntil/tillhewasfifteenyearsold.他直到十五岁才会骑自行车。c.用于“not...until...”的句式可以转换成when或after引导时间状语从句,但主句必须要用肯定形式。例如:1).Theydidn'tgetoffuntilthetraincametoacompletestop.=Theygotoffafterthetraincametoacompletestop.火车停了他们才下车。2).Thestudentwon'tcomeintotheclassroomuntiltheteachersfinishtheirwork.=Thestudentswillcomeintotheclassroomwhentheteachersfinishtheirwork.当老师们完成工作时,学生们将走进教室。d.用于延续性动词的肯定或否定句中,但含义不同。例如:1).Themeetingcontinueduntil/till7:00.会议一直开到七点。2).Wedidn'thavethemeetinguntil/till7:00.直到七点我们才结束会议。e.用于“Itis/wasnotuntil...that”或含有“not...until...”的强调结构中,其中的until不能改为till。例如:1).Itwasnotuntilthefilmhadbegunthathearrived.直到电影开始他才到。2).Itisnotuntil8:00thatwebeginourclasseveryday.我们每天八点开始上课。f.Notuntil放在句首时,句子要倒装,其中的until不能改为till。例如:1).Notuntilthelastmomentdidhechangehismind.直到最后一刻他才改变主意。2).Notuntilmidnightdiditstopraining.直到午夜雨才停。g.句首通常只用until,不用till。例如:1).Untilthen,Iknewnothingatallaboutit.在那之前,我对此事一无所知。2).UntilyoutoldmeIhadnoideaofit.在你告诉我之前,我对此一无所知。h.某些固定词组或谚语中通常只用till。例如:1).frommorningtillnight从早到晚。2).uptillnow直到现在B1.Practise:Fillintheblankswithsince,tilloruntil.1.Ihavebeencrazyaboutplayingbasketball_______Iwasalittleboy.2.Theweatherhasbeenawfulthisweek.Theraindidnotstop_____forsevendays.3.Weplayedbasketballintheplaygroundthisafternoon__________itwasgettingdark.4.Itisthefirsttimewehaveplayedbasketball______Monday.Weenjoyedourselvesverymuch.5.Iwaitedfor20minutesatthebusstop_________thebusarrived.6.ItisFridayevening.Iwillnotgotobed_______IfinisgwatchingmyfavouriteTVprogramme.sinceuntiluntil/tillsinceuntil/tilluntilD.Usingassoonasandwhenever1.HowtouseassoonasAssoonasmeanswhensomethinghappens,orashorttimeaftersomethinghashappened.assoonas的用法一般是两种情况:1)指未发生的动作,规律是:主句一般将来时,从句用一般现在时代替一般将来时如:Iwilltellhimthenewsassoonashecomesback。注:有时时,为了特意表达刚刚完成某事就如何如何,需要用现在完成时。如:IwillgowithyouassoonasIhavewashedmyface.2)指紧接着发生的两个短动作,主从句都用一般过去时如:HetookouthisEnglishbooksassoonashesatdown.不过,我也见过从句和主句都用一般现在时的情况。如:Assoonashefinisheshisclasswork,herunsoutoftheclass.他一做完课堂作业,就跑出了教室。2.HowtousewheneverWhenevermeansatanytimewhenever的用法一般是两种情况:1).conj.每当Whenevershecomes,shebringsafriend.她每次来都带个朋友。2).ad.不论何时,每逢I‘lldiscussitwithyouwheneveryoulike.你愿意什麽时候我就什麽时候和你商量这件事.C1.Practise:Fillintheblankswithassoonasorwhenever.1.Davidoftengoestoplaybasketball___________schoolisover.2.HewatchestheNBA_________thereisagameonTV.3._________hetalksaboutbasketball,hegetsexcited.4.___________helearntthattheNBAplayerswouldcometoChina,hetriedhisbesttogetaticket.assoonaswheneverAssoonasWheneverC2:Completethefollowingarticlewiththecorrectconjunctionsyouhavelearntinthisunit.YaoMingwasborninShanghaiin1980.Hegothisfirstbasketball_______hewasonlyfouryearsold,buthedidnotbecomeseriousaboutbasketball______hewas12.YaojoinedtheHoustonRocketsin2002andbecamethebestChineseplayertoeverplayintheNBA.______hewenttotheUSA,heknewlittleEnglish,buthequicklylearntthelanguage.Thebestmomentinhiscareerwasin2004---hescored41pointsinagameagainsttheAtlantaHawks.WhenYaoMingwaslivingintheUSA,hereturnedtoChina__________hewasneeded.HetookpartintheOlympicsin2004andin2008asoneoftheChineseathletes.________heendedhisbasketballcareer,YaoMinghasdonemorecharitywork,especiallyforpoorChineseteenagerswhenuntilWhen/BeforewheneverAfterD:Choosethecorrectanswer.()1.Youcan’twatchTV____youfinishyourhomework.A.beforeB.ifC.whileD.after()2.---What’syourplanthissummerholiday?---I’llgotoBeijing____theschoolteamendsA.wheneverB.tillC.assoonasD.before()3.__IwasintheUS,ImademanyAmericanfriends.A.WhileB.AlthoughC.UnlessD.Until()4.Manystudentsdidn’trealizetheimportanceofstudy____theyleftschool.A.whenB.untilC.asD.after()5.Youshouldgoo
本文标题:牛津译林版英语九上Unit4Grammar(II)
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