过去完成时经典PPT课件.ppt

SectionA 过去完成时 2020 3 19 1 复习用现在完成时填空 1 I be toBeijingmanytimes 2 Greatchanges take placeinShanghaiinthelasttenyears 3 Thestudents already finish theirhomework4 Thestudents learn manywordssincethey come toourschool 5 Tom stay inEuropefortwoweeks havebeen havetaken finished havelearned hasstayed have came 2020 3 19 2 现在完成时的构成 主语 have has 过去分词 2020 3 19 3 过去分词的构成 1 规则动词的变化 a 一般情况下在动词后面加ed work worked play played b 以辅音字母加y结尾的动词 把y改i再加ed study studied carry carried c 以重读闭音节结尾的 前面有单个元音字母时 双写辅音字母 再加ed stop stopped drop dropped 2 不规则动词的变化见课本 2020 3 19 4 本课出现的主要动词的过去式和过去分词 getgotgottengowentgoneleaveleftleftstartstartedstartedbewas werebeentaketooktakenrunranrunsleepsleptsleptoversleepoversleptoverslept 2020 3 19 5 1 cleanedtheroomat5 00 2 closedthewindowat5 20 hadcleanedtheroom closedthewindow Shehadcleanedtheroombeforesheclosedthewindow Aftershehadcleanedroom sheclosedthewindow 2020 3 19 6 1 first ateanapple 2 then slept hadeatenanapple slept Shehadeatenanapplebeforesheslept Aftershehadeatenanapple sheslept 2020 3 19 7 2 then playedsoccer 1 first didhishomework playedsoccer haddonehishomework Hehaddonehishomeworkbeforeheplayedsoccer Afterhehaddonehishomework heplayedsoccer 2020 3 19 8 Maryranbacktoschoolbecauseshehadleftherbookintheclassroom Whathappenedfirst a Maryranbacktoschool b Maryleftherbookintheclassroom 2020 3 19 9 Igothome Mylittlebrotherwenttobed BythetimeI mylittlebrother tobed gothome hadgone 10 Igottoschool Theteachercameintotheclassroom BythetimeI theteacher intotheclassroom gottoschool hadcome 11 BythetimeI Thebusleftatfivetoeight Igotoutsideateight thebus already wentout had left 12 by 在 之前 不迟于 bynoon bytomorrow bylastweek by6 00 bytheendof 到 末为止bythetime 到 的时候 BythetimeIgothome BythetimeIcamein BythetimeIgottoschool 13 Bythetimeshegotoutside thebushadalreadyleft 她出去的时候 公共汽车已经开走了 bythetime意思是 到 的时候 相当于when引导的从句 后接过去时的句子时 主语的谓语动词用had 过去分词 也就是过去完成时 14 Igothome Mylittlebrotherwenttobed BythetimeIgothome mylittlebrotherhadgonetobed 弟弟上床睡觉在我回家之前 15 Igottoschool Theteachercameintotheclassroom BythetimeIgottoschool theteacherhadcomeintotheclassroom 老师进入教室在我到达学校之前 16 When BythetimeBefore After 过去时态 从句 过去完成时态 主句 17 thepolicemangettotheshop Tomrunaway Bythetimethepolicemangottotheshop now Tomhadrunaway 18 LiuMeiwakeup theconcertbeover BythetimeLiuMeiwokeup theconcerthadbeenover now 19 20112012 learn4000Englishwords Bytheendof lastyear Bytheendoflastyear Ihadlearned4000newwords 20 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 2 过去完成时态的含义 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 21 过去完成时的判断依据 1 由时间状语来判定 一般说来 各种时态都有特定的时间状语 与过去完成时连用的时间状语有 1 by 过去时间点Ihadfinishedreadingthebookbynineo clocklastnight 2 bytheendof 过去时间点 如Wehadlearnedover2000Englishwordsbytheendoflastterm 3 before 过去时间点 如Theyhadplanted600treesbeforelastFriday 22 2 由 过去的过去 来判定 在状语从句中 先发生的动作用过去完成时 后发生的动作用一般过去时 WhenIgottothestation thetrainhadalreadyleft Afterhehadfinishedhishomework hewenttobed first first 23 3 常用在宾语从句中 当宾语从句的主句为一般过去时 且从句的动作先于主句的动作时 从句要用过去完成时 在told said knew heard thought等动词后的宾语从句 如 Hetoldmehehadalreadyfinishedhishomework IrealizedIhadleftmykeysathome 24 4 体现在上下文中Ididn tgotothemoviesyesterdaybecauseIhadseenittwice 25 Workouttherule 过去完成时的否定形式 过去完成时的疑问形式 肯定回答 否定回答 主语 hadnot hadn t p p 其它 Yes 主语 had Had 主语 p p 其它 No 主语 had not 26 BythetimeIgotup mybrotheralready have hisbreakfast 2 BythetimeIgottothestation thebusalready leave 3 WhenIgottoschool IrealizedI leave mybagathome had had had had left left Canyoudoit 28 4 Hedidn tgotothecinemabecausehe see themovietwice 5 Bytheendoflastyear theworkers build threehighrises 6 She work onthefarmforthreeyearsbeforeshebecameateacher hadseen hadbuilt hadworked 29 按要求改写下列句子 5 1 TomhadfinishedhishomeworkbeforehewatchedTV 否定句 疑问句 肯定回答 否定回答 Tomhadn tfinishedhishomeworkbeforehewatchedTV HadTomfinishedhishomeworkbeforehewatchedTV Yes hehad No hehadn t 30 句型转换 10 1 Hehadstoodupbeforehecleanedthewindow hehadstoodup hecleanedthewindow HisfatherwenttoBeijing Hearrivedhome 用before合并句子 Hisfather Beijingbeforehe home After hadgoneto arrived 31 Questions 1 Whatdoyouusuallydointhemorningbeforeschool 2 Doyoulikemornings Whyorwhynot 32 Whatdoyouusuallydointhemorningbeforeschool brushmyteeth 2020 3 19 33 Whatdoyouusuallydointhemorningbeforeschool takeashower 2020 3 19 34 Whatdoyouusuallydointhemorningbeforeschool haveabreakfast 2020 3 19 35 Whatdoyouusuallydointhemorningbeforeschool gotoschool 2020 3 19 36 Tina smorning 2020 3 19 37 Sheoverslept WhathappenedtoTina 2020 3 19 38 Someonewastakingashower 2020 3 19 39 Thebusleft 2020 3 19 40 Shehadtoruntoschoolquickly 2020 3 19 41 Sheleftherbackpackathome 2020 3 19 42 RetellastoryaboutTina smorning Tinahadaterriblemorningyesterday She Whenshe herbrother intheshower Bythetimeshe thebus Soshehadto Oh dear Whenshe sherealized overslept hadalreadygotten gotoutside hadalreadyleft gotup runtoschool gottoschool shehad leftherbackpackathome 2020 3 19 43 1b BythetimeIgotup mybrotheralreadyintheshower 2 BythetimeIgotoutside thebusalready 3 WhenIgottoschool IrealizedImybackpackathome gotten had had had left left 2020 3 19 44 1 I upat6 00thismorning 醒来 2 AfterIgottothecinema thefilm already 开始 3 He 学习 Englishfor10years 4 Bytheendoflastyear she 学 toswimfor3years 灵活运用 巧手填空 woke hadstarted haslearned hadlearnt 45 一般过去时 x y o A A点动作跟现在没任何关系 46 现在完成时 x y o B B为过去发生的动作 对现在造成了一定影响 或一直持续到现在 47 过去完成时 C D x y o C点 过去的过去 在D点动作之前就已经发生 48 1 WestartedtolearnEnglish5yearsago 一般过去时表示在过去某时发生的动作或存在的状态 2 WehavelearnedEnglishfor5years 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 5yearsagonow 5yearsagohavelearnednow Revision 49 3 过去完成时表示在过去某个时间或动作之前已经发生或完成了的动作或存在的状态 即 过去的过去 past in the pas