新概念英语第一册第120课经典课件(精心整理)

Ithadalreadyhappened.

Lesson120

事情已经发生了。

Ithadalreadyhappened.1Revision:Lesson119Atruestory

Keywords＆expressionsstoryn.故事happenv.发生thiefn.贼enterv.进入darkadj.黑暗的torchn.手电筒voicen.(说话的)声音parrotn.鹦鹉exercisebookn.练习本Revision:Lesson119Atrue2Revision:Lesson119Atruestory

TextRevision:Lesson119Atrue3Revision:Lesson119Atruestory

TextRevision:Lesson119Atrue4Revision:Lesson119Atruestory

TextRevision:Lesson119Atrue5Revision:Lesson119Atruestory

Exercise(Text):Doyoulikestories?Iwanttotellyouatruestory.Ithappened

toafriendofmineayearago.Whilemyfriend,George,was

readinginbed,twothievesclimbed

intohiskitchen.Aftertheyhadenteredthehouse,theywentintothediningroom.Itwasverydark,sotheyturnedonatorch.Suddenly,theyheardavoicebehindthem.'What'sup?What'sup?'someonecalled.Thethievesdroppedthetorchandranawayasquicklyastheycould.Revision:Lesson119Atrue6Revision:Lesson119Atruestory

Exercise(Text):Georgeheardthenoiseandcamedownstairsquickly.Heturnedonthelight,buthecouldn'tseeanyone.Thethieveshadalreadygone.ButGeorge'sparrot,Henry,wasstillthere.'What'sup,George?'hecalled.'Nothing,Henry,'Georgesaidandsmiled.'Gobacktosleep.'Revision:Lesson119Atrue7Revision:Lesson119Atruestory

Grammar:

1.First,pleasefindoutthesentencesofpastperfecttensefromthetext.Aftertheyhadenteredthehouse,theywentintothediningroom.Thethieveshadalreadygone.2.Summary:意义：结构:1）肯定式：2）否定式：3）疑问式：Pastperfecttense(过去完成时)主语+had+动词的过去分词.主语+hadnot+动词的过去分词.Had+主语+动词的过去分词?表示一个动作在过去某一个动作或过去某一时间之前已经发生或完成。（即动作发生在过去的过去）Revision:Lesson119Atrue8

Ithadalreadyhappened.

Lesson120

事情已经发生了。

Ithadalreadyhappened.9NowpleaseopenyourbooksandturntoLesson120.Let'slookatthepictures.Nowpleaseopenyourbooks10新概念英语第一册第120课经典PPT课件(精心整理)11三、过去完成时与一般过去时的比较二、过去完成时与现在完成时的比较一、过去完成时Grammarinuse三、过去完成时与一般过去时的比较二、过去完成时与现在完成时的12一、过去完成时1.意义：表示一个动作在过去某一个动作或过去某一时间之前已经发生或完成。（即动作发生在过去的过去）2.结构:1）肯定式：2）否定式：3）疑问式：主语+had+动词的过去分词主语+hadnot+动词的过去分词Had+主语+动词的过去分词一、过去完成时1.意义：表示一个动作在过去某一个动作或过去某133.当两个动作都发生在过去，先发生的用过去完成时，后发生的用一般过去时。

when、while、after、before等常与过去完成时连用，以强调事件发生的先后次序。

过去完成时的例句：1.Thethieveshadalreadygone

whenhecame

downstairs.2.Thetrainhadleftwhenwearrived

there.when3.当两个动作都发生在过去，先发生的用过去完成时，后发生的用14After

shehadcleanedtheblackboard,sheclosedthewindow.1.cleanedtheblackboard2.closedthewindow

——————∣—————∣—————→∣——→

nowhadcleanedtheblackboardclosedthewindowShehadcleanedtheblackboard

before

sheclosedthewindow.after&beforeAftershehadcleanedtheblac151.ateanapple2.slept

——————∣—————∣—————→∣——→

nowhadeatenanapplesleptShehadeatenanapple

before

sheslept.After

shehadeatenanapple

,

sheslept.after&before1.ateanapple2.slept——162.playedpingpong1.didhishomework

——————∣—————∣—————→∣——→

now

playedpingponghaddonehishomeworkHehaddonehishomework

before

heplayedpingpong.Afterhehaddonehishomework

,heplayedpingpong.after&before2.playedpingpong1.didhis17

当两个动作都发生在过去，先发生的用过去完成时，后发生的用一般过去时。本课当中出现before和after引导的时间状语从句。

before+一般过去时，主句用过去完成时e.g.ThefilmhadalreadybegunbeforeIcameback.

after+过去完成时，主句用一般过去时e.g.Helefttheroomafterhehadturnedoffthelight.Revision当两个动作都发生在过去，先发生的用过去完成时，后发生的用184.过去完成时常与already(已经),

ever（曾经）,

just（刚刚）和

never（从未）,

by(到……),until(直到……),since+过去时间点/过去时的句子，for+段时间等连用，以强调事件发生的先后次序。例如：By

theendoflastyear,hehadworkedinthefactoryfor10years.ThefilmhadalreadybeenonforhalfanhourwhenLucygottothecinema.

4.过去完成时常与already(已经),ever（曾经）19Exercise一.用动词的适当形式填空:1.We_____________(paint)thehousebeforewe______________(move)in.【翻译】________________________________________________

2.Thatricholdman_____________(make)awillbeforehe____________(die).【翻译】________________________________________________3.Afterthey___________(study)themapofthecountry,they___________(leave).【翻译】________________________________________________

4.Whenthechairman______________(finish)speaking,he_____________(leave)thehall.【翻译】5.Tom________(have)lunchwhenI________________(get)totheirhouse.【翻译】________________________________________________hadpaintedmovedhadmadediedhadstudiedlefthadfinishedlefthadhadgotExercise一.用动词的适当形式填空:hadpain20二．句型转换:1.Ihadsoldtheticketwhenshecame.（改否定句）

Ihadnotsoldtheticketwhenshecame.2.Shehadsungasongtousbeforeshedanced.（改否定句）

Shehadsungasongtousbeforeshedanced.3.By10:00a.m,Ihadbeenveryhungry.（改一般疑问句并做肯定回答）Hadyoubeenveryhungryby10:00a.m.?Yes,Ihad.4.LucyhadalreadycompletedtheprojectwhenIarrived.（改一般疑问句并做否定回答）

HadLucyalreadycompletedtheprojectwhenIarrived?No,shehadn't.Exercise二．句型转换:Exercise21二、过去完成时与现在完成时的比较概念现在完成时1.表示过去发生的动作对现在有影响；

Ihaveseenthefilmmanytimes.2.表示过去某一时间开始一直延续到现在的动作。

Hehaslivedheresince1949.过去完成时表示一个动作在过去某一个动作或过去某一时间之前已经发生或完成。（即动作发生在过去的过去）

Bytheendoflastterm，wehadlearned1000Englishwords.二、过去完成时与现在完成时的比较概念现在完成时22形式现在完成时主语+have/has+动词的过去分词主语为三人称单数，则用“has+过去分词”Shehaswaitedhereforanhour.主语为非单三，则用“have+过去分词”Ihavewaitedhereforanhour.过去完成时主语+had+过去分词had可用于各种人称和数Bytheendofthisterm，wehadlearned1000Englishwords.

二、过去完成时与现在完成时的比较形式现在完成时过去完成时二、过去完成时与现在完成时的比较23三、过去完成时与一般过去时的比较一般过去时表示在过去某个时间发生的动作或存在的状态；而过去完成时表示在过去某一时间之前完成的动作。1.Wegottothestationat8:00,butthetrainhadleft.我们八点到达车站，但火车已开走了。2.Wegottothestationat8:00,butthetrainleftat7:30.我们八点到达车站，但火车七点半就开走了。三、过去完成时与一般过去时的比较一般过去时表示在过去某241.—______you______yourhomeworkyet?

—Yes,I_____itjustnow.A.Did;do;finishedB.Have;done;finishedC.Have;done;havefinishedD.Will;do;finish2.—WhereisLiLei?—He___Shanghai.A.hasgonetoB.hasbeentoC.wenttoD.goesto3.ThoseforeignfriendsleftGuangzhou__________.A.sincelastweekB.aweekagoC.foraweekD.sinceaweekago4.Bytheendoflastyearhe______about1500Englishwords.A.learnsB.learnedC.waslearningD.hadlearned5.ZhaoLan______already______inthisschoolfortwoyears.Ａ.was;studyingＢ.will;studyＣ.has;studiedＤ.are;studyingExerciseBABDC1.—______you______yourhome25Openyourbooks.Let'sdotheexercises.Openyourbooks.26Lesson120A1Hedroppedthevaseafterhehadtakenitintothelivingroom.2Heboughtanothercarafterhehadsoldhisoldone.3Hesweptthefloorafterhehaddustedeverything.4Shedrankthemilkaftershehadboiledit.5Heturnedoffthetelevisionafterhehadseentheprogramme.6Hewenttobedafterhehaddonehishomework.B1Yes,Ihavejustseenit.Ihadneverseenitbefore.2Yes,Ihavejustreadit.Ihadneverreaditbefore.3Yes,Ihavejusttriedit.Ihadnevertrie