Unit+3+Discovering+Useful+Structures+过去完成时专题课件 【知识精讲+备课精研】 高中英语人教版（2019）选择性必修第二册

UNIT3FOODANDCULTUREDiscoveringUsefulStructuresHongKong________(return)toChinain1997.returnedMacao/məˈkaʊ/________(return)toChinain1999.returned1.过去完成时的定义HongKong____________(return)toChinabeforeMacaocamebacktoChina.hadreturned动作1：发生在1997年动作2：发生在1999年定义一：动作1发生在动作2发生之前，动作1时态用“过去完成时”，表示“过去的过去”。①②1.过去完成时的定义Bythetimethepolicemangottotheshop,thethiefhadrunaway.警察到商店时，小偷已经逃跑了。过去现在将来1.过去完成时的定义定义二：表示过去某一时间之前已经开始并一直持续到该时间的动作或状态。常与by/until/before/bytheendof+表示过去的某一时间连用It’sSunday.HehadbeenillforaweekwhenhewassenttohospitalonFriday.今天是星期天了。当他周五被送往医院就医时，他已经病了一个星期了。1.过去完成时的定义1.Bythetimethepolicemangottotheshop,thethiefhadrunaway.2.Hadthethiefrunawaybythetimethepolicemangottotheshop,例句：我们到剧院时戏剧已经开始了。Theplay___________________whenwegottothetheater.hadalreadystarted过去完成时结构:肯/否定句：had(not)+done

一般疑问句：Hadsbdonesth?2.过去完成时的结构Hadtheplayalreadystartedwhenwegottothetheater.3.过去完成时与现在完成时的区别现在完成时表示的动作发生在过去,但侧重对现在产生的结果或造成的影响,与现在有关.其结构为”助动词have/has+过去分词”;过去完成时则是一个相对的时态,它所表示的动作不仅发生在过去,更强调”过去的过去”,只有和过去的某时或某动作相比较时,才用到它。现在完成时过去完成时3.过去完成时与现在完成时的区别现在完成时表示的动作发生在过去,但侧重对现在产生的结果或造成的影响,与现在有关.其结构为”助动词have/has+过去分词”;过去完成时则是一个相对的时态,它所表示的动作不仅发生在过去,更强调”过去的过去”,只有和过去的某时或某动作相比较时,才用到它。到目前为止我已经学会了3000个单词.Ihavelearned3000Englishwordssofar.到那时我已经学会了3000个英语单词.Ihadlearned3000Englishwordstillthen.过去完成时：在过去某一时间或动作之前已经发生或完成了的动作，表示动作发生的时间是过去的过去。一般过去时：过去某一时间所发生的动作或存在的状态。e.g.Theyhadarrivedatthestationbeforethetrainleft.

Theyarrivedatthestationattenyesterday.4.过去完成时与一般过去时的区别1.by+过去的时间点Ihadfinishedreadingthenovelbynineo’clocklastnight.2.bytheendof+过去的时间点WehadlearnedovertwothousandEnglishwordsbytheendoflastterm.3.before+过去的时间点TheyhadplantedsixhundredtreesbeforelastWednesday.……5.过去完成时时间状语e.g.MyfatheraskedmeifIhadfinishedreadingthatbook.Theladyshowedmethepicturesshehadpainted.1.在主从复合句中，主句为过去时，从句动作发生在主句之前，用过去完成时。6.过去完成时常用句型2.hardly...when.../nosooner...than...：“刚......就......”；hardly和nosooner分句谓语常用过去完成时。e.g.NosoonerhadMoYansteppedonstagethantheaudiencebrokeintothunderousapplause.3.It/This/Thatwas+thefirst/second/...+time+that从句，从句谓语常用过去完成时。e.g.ItwasthefirsttimethatIhadmadesuchamistake.4.It/This/Thatwas+the+形容词最高级+名词+定语从句（从句用过去完成时）e.g.ThatwasthemostbeautifulpicturethatIhadseen.5.用于虚拟语气，表示与过去事实相反。e.g.Ifyouhadcomeearlier,youwouldhavemethim.6.用于hope,intend,mean,think等动词表示未实现的愿望时,意为“本打算，本想......”。e.g.IhadintendedvisitinghimthisweekendbutIwasn’tabletomakeit.过去完成时的被动语态hadbeen+过去分词e.g.Anewfarm-to-tablerestauranthadbeensetupbythechefbeforehisnewcookbookwaspublished.【语境应用】完成句子。1)Thetickets____________(sell)outbeforeIcametothecinema.2)Bytheendoflastyear,we_________________(produce)20,000cars.3)Whenthepolicearrived,thethieves________(run)away.4)Shetoldusthatthemeeting________________(cancel).hadbeensoldhadproducedhadrunhadbeencanceled（书p29）Completethetwoconversationswiththecorrectformsofthewordsintheboxusingthepastperfecttenseorthepastperfectpassivevoice.arrive,cancel,eat,finish,get,taste,tell

Carol:_____youever______anyScottishfoodbeforeyourtriptoSt.Andrewslastyear?

Paul:No,notreally.ButI____________abouthaggis

manytimesbeforewewentthere.HadtastedhadbeentoldCarol:Oh…Didyoutryit?Paul:Oh,yes!Youknowwhat?We_________lateforsupperthatday,andsowejustatewhateverwasleftintheuniversitycanteen.We___________ourmealbeforewelearntwe_____just______haggis!Carol:Mygoodness!Paul:Well,itwasnotbad.Ihavetosay…arrive,cancel,eat,finish,get,taste,tellarrivedhadfinishedhadeaten2.Carol:WhenIgottotheteahouseyesterday,Ifoundnobodythere._____it______________?

Paul:Oh,I’msosorrythatIforgottotellyou!Theget-togetherwascancelledyesterdaymorningbecauseSally,thehostess,___________intoacaraccident.

Carol:Oh,I’msorrytohearthat.HopeSallyrecoverssoon!Hadbeencancelledhadgotarrive,cancel,eat,finish,get,taste,tell构成用法主动语态haddone过去某一时间或动作之前已经发生或完