高中英语 Module 3 Music Grammar课件 外研版必修2-外研版高中必修2英语课件.ppt

GrammarGrammar时间状语从句2).时间状语从句可以转换成分词短语。如:＊Boysneedtodeveloptheirbodiesfullybeforetheyattemptsuchdifficultexercise.Boysneedtodeveloptheirbodiesfullybeforeattemptingsuchdifficultexercise.＊Afterheworkedtherefor30yearsHaydnmovedtoLondon.Note:时间状语从句转换成分词短语时时间状语从句的主语和主句主语必须一致才可以。过去完成时Thepatienthaddiedwhenthedoctorarrived.Upuntilthentheyhadjustfinishedhalfthework.Hehadpressedthebuttonbeforewecouldstophim.WhenIhadfinishedmyeverydayworkIdidsomegardening.2).如果发生的动作很短暂或两个动作紧接着发生则常用一般过去时代替过去完成时。尤其是在含有beforeafterassoonas的复合句中因为它们本身的词义就可以表示出先后顺序。如:JustbeforeIleftNewYorkIsentane-mailtoMrWhitemyteacherintheuniversity.3).过去完成时还可以表示未能实现的希望、愿望等常用的动词有excepthopemeansupposethink等。如:Ihadhopedtosendhimatelegramtocongratulatehimonhismarriagebutdidn’tmanageit.MotherhadexpectedmetocometoherbirthdaypartybutIreallyhadalotofimportantworktodo.Whenhegothomefromworkhewasverytired.Heopenedthedoorturnedonthelightwashedhisfaceandwenttobedwithouttakingoffhisclothes.2.与某个时间段或时间点连用时一般过去时表示动作在这个时间发生而过去完成时表示动作在这个时间之前就已经完成。如:HelearnedRussianduringhisstayinRussia.HehadalreadylearnedRussianduringhisstayinRussia.3.在间接引语中与过去完成时连用的时间状语从句常用一般过去时代替过去完成时。如：HetoldmesomebodyhadphonedwhenIwasout.Johnsaidthefilmhadbeenonfiveminuteswhenhegottothecinema.语法练习3.Tom本来想去拜访他的奶奶但是天气不好使他改变了主义。Tomhadthoughtofvisitinghisgrandmotherbutthebadweathermadehimchangehismind.4.---Jack昨天为什么没去参加会议?---他去北京了。---Whydidn’tJackattendthemeetingyesterday?---HehasgonetoBeijing.5.最后Mary被北京大学录取了为此她尝试了五次。FinallyMarywasadmittedbyBeijingUniversityforwhichshehadtriedfivetimes.ThankYou!