2023学年完整公开课版Unit3 Discover Useful Structures 公开课课件

UNIT3FOODANDCULTURE【版本：新人教册别：选择性必修二】DiscoverUsefulStructures目录页contentsTheStructureofthePastPerfectTenseⅠTheComparisonbetweenthePastPerfectTenseandthePresentPerfectTenseFiveUsagesofthePastPerfectTenseⅡHomeworkIIIⅣⅠTheStructureofthePastPerfectTense

ObserveandDiscover1.Thechefhadsetup

afarm-to-tablerestuarantbeforehisnewcookbookwaspublished.2.Theyhadfinished

theirdinnerbythetimeSamjoinedthem.3.Mostoftheguestshadleft

whenhearrivedattheparty.

4.Theirdinnerhadbeenfinished

bythetimeSamjoinedthem.1.ThePastPerfectTense过去完成时2.第4句有什么特别之处呢？被动语态ThePastPerfectTense基本结构：“had+过去分词”被动语态：“hadbeen+过去分词”基本含义：过去完成时表示在过去某一时刻已经完成的动作，即“过去的过去”。PastFuturehaddone

SummarizePresent“过去的过去”FiveUsagesofthePastPerfectTenseⅡ1.When

thepolicearrived,thethief

hadrunaway.2.Before

hevolunteeredtodirectthetraffic,Tomhadlost

lotsofjobs.3.He

hadn’tfinisheditbyyesterdayevening.4.BytheendofJune,they__________(treat)over800patients.TheUsageoftheTense(1)（1）表示过去某时或某动作之前就已经完成或结束的动作。hadtreatedcame1.Kevinhadbeenanewspaperreporter

fortwoyearsbeforehebecame

abusinessman.2.Hesaid

he____________

(work)inthatfactorysince1949.3.Ihadbeenatthebusstopfor20minuteswhenabusfinally_______(come).TheUsageoftheTense(2)（2）过去某一时间的动作或状态持续到过去另一时间，有时可能继续下去，常与for，since等引导的时间状语连用。hadworked

1.Scarcelyhad

thevotes

been

counted,whenthetelephonerang.2.Nosoonerhad

Iwalked

outthanIrememberedthatIforgot

myhomework.3.Hardlyhad

wesat

downtosupperwhenthephonerang.TheUsageoftheTense(3)Whatarethemeaningsandfeaturesofthefollowingsentences?（3）常用固定句型：Hardly/Scarcely...when；Nosooner...than（刚……就……）。否定词置于句首，需要部分倒装。主句用过去完成时，从句用一般过去时。1.我刚到车站，火车就开了。(scarcely...when...)Ihadscarcelyreachedthestationwhenthetrainstarted./ScarcelyhadIreachedthestationwhenthetrainstarted.2.结果刚一宣布，人们就欢呼起来。(hardly...when...)Theresulthadhardlybeenannouncedwhenthecrowdapplauded./TheUsageoftheTense(3)即学即练Hardlyhadtheresultbeenannounced

whenthecrowdapplauded.

1.We

hadintended

tohaveabarbecueintheopenair,buttheweatherwasbad.2.Ihadwished

__________(become)adoctor,butIstudiedlawatcollege.3.They____________(plan)toseeusoffattheairport.TheUsageoftheTense(4)（4）常用hope,expect,suppose,think,want,wish等动词的过去完成时表示过去未实现的愿望、计划或者打算。hadplannedtobecomeTheUsageoftheTense(5)1.Itwasthefirsttimeshe_________(leave)hermotherland.2.Itisthefirsttime(that)I___________(speak)inpublic.3.This_____(be)thefirsttimeIhadseenDadsofurious

(狂怒的).4.Itistimeforus________(pack)upandleave.hadlefthavespokenwas

（5）It/This/Thatwasthefirst/second...time(+that)…

这是/那是某人第一/第二次/第……次做……此句型中，若主语中的be动词为was,从句中的谓语则用过去完成时；若主句中的be动词为is,从句中的谓语则用现在完成时。topackItishigh/abouttimethatwe______________(do)somethingtostoppollution.TheUsageoftheTense(5)

did/shoulddoItishigh/abouttimethatsbdid/shoulddosth

是该做……的时候了。(should不可省略)TheComparisonbetweenthePastPerfectTenseandthePresentPerfectTense

Ⅲ1.Tom

haseaten

hissupper.2.Tomhadeatenhissupperinthecanteenbeforehewentbackhome.1.Thefamilyhavenotfinished

breakfast.2.Thefamilywerestillattable,buttheyhadfinished

breakfast.现在完成时强调过去的动作对现在的影响；过去完成时强调动作或状态开始于过去，也结束于过去。Trytocomparethefollowingtwosetsofsentences.CompareandDiscover1.I___________

(eat)lotsofcakessofar.2.I_________(eat)lotsofcakestillthen.3.Tom____________

(finish)writinghisnovelbytheendoflastyear.4.Tom__________

(finish)writinghisnovel.

5.Tom________________

(finish)writinghisnovelbytheendofnextyear.6.Tom_________(finish)writinghisnovellastyear.haveeatenhadeatenhadfinishedhasfinishedwillhavefinishedfinished即学即练

PracticeMakesPerfect1.Sinceourtwinsbeganlearningtowalk,mywifeandI_________(keep)tellingthemthatourslidingglassdoorisjustawindow.

(2020全国Ⅰ卷)2.Instead,oneactivist,dressedinafull-bodymonkeysuit,__________(arrive)beforeotheractivistswithasignpraisingthefilmmakers:“Thanksfornotusingrealapes(猿)!”(2020全国Ⅲ卷改)havekepthadarrived

PracticeMakesPerfect即学即练3.Arrivingatthepartyhurriedly,we______(be)disappointedtofindthattheband___________(stop)playing.4.Hardly______helefttheroomwhenthetravelerentered.5.EhlerscalledthenumberofJeffandLisatotellthemthattheirdog________________(find).(2019全国Ⅱ卷改)6.Lastwinter,whenI_____(go)thereagain,they_____(have)abigseparatehousetoraisedozensofchickens.(2018全国Ⅰ卷)hadstopped

were

had

hadbeenfoundwent

had即学即练

PracticeMakesPerfect7.Ben__________(move)toEnglandwithhismumwhenhewasthreeandit_________(be)13yearssinceIhadlastseenhim.(2018全国Ⅱ卷)8.Thisisthefirsttimehe______________(confront)anarmedrobber.9.Millionsofyearsago,dinosaursroamed

(漫步)theearth,butthey____________(become)extinctbythetimehumankindfirstappeared.hasconfrontedhadmovedhadbeenhadbecome即学即练

PracticeMakesPerfect10.Mary,whenquestionedwhyshe___________(cheat)intheexam,justloweredherheadand______(keep)silent.11.Sincethen,Ricky__________(decide)tobecomea“MaximumEfficiencyBoy”,and____(put)realcareintohowhetreatedhisthings.12.HardlyhadI_____(come)outoftherailwaystationwhenmyparents_____(run)tomeand_______(help)mecarrymyluggage.hadcheatedcome

kept

hasdecidedhelped

put即学即练

PracticeMakesPerfectran

Lastyear,mybrotherandI____(go)toMiamiforavacation.Someofmyfriendswho________(be)therebeforesaiditwasawonderfulholidaydestination.Beforewewent,we____________(plan)formonths.Whenthedaycame,wewereready.hadbeenhadplannedwent

语篇填空

PracticeMakesPerfect

Afterourplane_______(land),wewenttothehotel.We________(make)ourreservationsixmonthsearlier,butthemanatthefrontdesksaidthere________(be)amistake.We________(tell)thatourroomshadn’tbeenreservedforthatweek,butfortheweekafter.Ididn’tunderstandwhythiswouldhappenandmycreditcard_______________(charge)forthereservation.landed

hadbeenweretoldhadbeencharged

hadmade

Practic