过去完成时讲解ppt.ppt

过去完成时 BythetimeIgotoutside thebushadalreadyleft thepolicemangettotheshop Tomrunaway Bythetimethepolicemangottotheshop Tomhadrunaway Speaking freely Bythetime orWhen LiuMeiwakeup theconcertbeover BythetimeLiuMeiwokeup theconcerthadbeenover hisgrandmacomefromAmerica LiMinggrowup BythetimehisgrandmacamefromAmerica LiMinghadgrownup 20062011 learn4000Englishwords Bytheendof Bytheendof2006 Ihadlearned4000newwords ThePastPerfectTense过去完成时 过去完成时的构成助动词had 用于各种人称和数 过去分词 WhenIgottoschool thebellhadrung 2 过去完成时的用法 主要是表示在过去某个时间 或是动作之前已经发生或完成的动作 也就是过去的过去 ThePastPerfectTense过去完成时 3 常用的几种方式 用介词by before等构成的时间短语 用连词when before after或者短语bythetime引导的时间状语从句 Wehadlearnt20Englishsongsbytheendoflastmonth TheplanehadtakenoffwhenIreachedtheairport BythetimeIgotup mybrotherhadlefthome 常用动词的过去式和过去分词 playplayedplayedworkworkedworkedleaveleftleftsaysaidsaidgowentgonebewas werebeentaketooktakengetgotgotten startstartedstarted breakbrokebrokenspeakspokespokendrivedrovedrivenseesawseeneatateeatengivegavegivenknowknewknowngrowgrewgrown 1 We learn twothousandswordsbythetimeIwenttoMiddleSchool Canyoudoit 3 Whenwe arrive atthestation they wait formorethantwentyminutes hadlearned arrived hadwaited 2 I know himwhenIwasastudent hadknown 4 Oneofthemendidn tmove becausehe break hislegs hadbroken 5 Byyesterdayeveninghe thatimportantletter write 6 IthoughtI themanbefore meet 7 Bysixo clockthey fortenhours work 8 IwenttoNick shouse buthe out go 9 I theproblemwhenclasswasover notunderstand hadwritten hadmet hadworked hadgone hadn tunderstood 口语练习1 a Igotup Mybrotherwasintheshoweralready b BythetimeIgotup mybrother intheshoweralready 2 a Iranoutsidetothebusstop Thebuswasgone b 3 a Igothome Irealizedthatmyhomeworkwasstillatschool b hadgotten BythetimeIranoutsidetothebusstop thebushadalreadygone WhenIgothome IrealizedthatIhadleftmyhomeworkatschool 4 a Iwokeup Myclockstoppedtwohoursago b 5 a Igottothecinemaat8 Thefilmstartedat7 30 b 6 a Igottotheparty Jimwenthomeanhourago b BythetimeIgottothecinema thefilmhadalreadystarted BythetimeIwokeup myclockhadstoppedfortwohours WhenIgottotheparty Jimhadalreadygonehome 一 表现形式1 基本形式 had 过去分词 2 否定形式 had not 过去分词 hadnot照样可缩写hadn t 3 一般疑问形式 had提到句首 回答用Yes 主语 had No 主语 hadn t 例如 Hadhetoldyoutogothereearlieryesterday 他昨天告诉过你早点儿到那儿吗 Yes hehad No hehadn t 是的 他告诉了 不 他没有 4 被动语态形式 had been 过去分词 如 WhenIgotthere thewindowshadbeenbroken 二 用法1 过去完成时表示一个动作或状态在过去某一时间或动作之前已经结束或完成 它表示的动作发生的时间是 过去的过去 Ihadwrittenthearticlewhentheycame 2 表示一个动作或状态在过去的某一时间之前已经开始 一直延续到这一过去时间 Theyhadworkedfor12hoursby6o clockthismorning 明显标志 1 句中有by引导的过去时间状语 Bythetimewegotthere alltheotherguestshadarrived 2 与过去完成时连用的时间状语有already yet still never等 TheyhadalreadyleftbeforeIreturned 1 Kate sneverseenChinesefilms A hasn tsheB hassheC isn tsheD isshe2 AnnhasgonetoShanghai So herparents A hasB hadC didD have3 Mum mayIgooutandplaybasketball you yourhomeworkyet A Do finishB Are finishingC Did finishD Have finished 4 HisbrotherhasbeentoStoneForestwice hecametoYunnan afterB beforeC sinceD for5 Tom theCDplayerfortwoweeks A haslentB hasborrowedC hasboughtD hashad6 I aletterfromhimsinceheleft A didn treceiveB haven tgotC didn thaveD haven theard 7 Haveyouever LintongtoseetheTerraCottaWarriors Yes Ihave wenttoB gonetoC beeninD beento8 Myparents Shangdongfortenyears havebeeninB havebeentoC havegonetoD havebeen9 Iwon tgototheconcertbecauseI myticket A lostB don tloseC havelostD iscoming 1 WhenI get there theSmithsalready have theirdinner 2 Bytheendoflastyearthey produce morethan500 000tractors 3 Tom read atleast20novelsinthepastyear 4 He work onafarm