【公開課課件】Unit3+Discover+useful+structures+課件人教版（2019）必修第二冊

Unit3DiscoveringUsefulStructuresThepresentperfect

passivevoice——現(xiàn)在完成時的被動語態(tài)TolearnthepresentperfectpassivevoiceTousethepresentperfectpassivevoicetodosomeexercisesandtalkaboutsomethinghasbeendoneToreadapoemandlearntowriteyourownpoemLookatthewayyourfacehasbeenwashedLookatthewayyourteethhavebeenbrushedLookatthewayyourshoeshavebeencleanedYou’dbetterdothemagain.LookatthewaytheflowershavebeenplantedLookatthewaythegrasshasbeencutLookatthewaythepathshavebeensweptIhopethatyou’llcomehereagain.AppreciateapoemWhat’sthecommonverbformofthesesentences?Verbform:presentperfectpassivevoicehave/hasbeendoneLeadin1定義

表示動作已經(jīng)完成，強調(diào)對現(xiàn)在造成的影響和結(jié)果。常與一些副詞連用，如already,ever,

never,recently,lastly,just,yet等，通常把副詞放在助動詞have或has的后面，有時候也可以放在句末。

表示一直持續(xù)到現(xiàn)在的動作或狀態(tài)。常與foratime,since,howlong,sofar等表示一段時間的時間狀語連用。

*Thechildhasbeentakencareofbygandmaalltheseyears.

這些年來，孩子一直由奶奶照看。Thepresentperfectpassivevoice例2：HavetheybeensentabroadtostudyEng-lish?他們已經(jīng)被派往國外學英語了嗎?

例3：Whohasbeeninvented?誰受到了邀請？2構(gòu)成陳述句主語+has/have（not）been+P.P.+...例1：Hermotorbikehasbeenstolen.她的摩托車盜了。一般疑問句Has/have+主語+been+P.P.+...?特殊疑問句特殊疑問詞+have/has+been+P.P.+...?現(xiàn)在完成時的被動語態(tài)的句式：Theresearchhasbeendonesuccessfully.現(xiàn)在完成時被動語態(tài)的肯定式：have/hasbeendoneTheauthor’snewstoryhasnotbeenpublished.現(xiàn)在完成時被動語態(tài)的否定式：have/hasnotbeendoneHashiswashingmachinebeenrepaired?現(xiàn)在完成時被動語態(tài)的一般疑問句：把have/has提到主語的前面

Whohasbeeninvited?現(xiàn)在完成時被動語態(tài)的特殊疑問句：特殊疑問詞+have/hasbeendoneSummary注意事項①由finish,buy,start,begin,post,return,borrow,marry,open等詞構(gòu)成的現(xiàn)在完成時的被動語態(tài),不能與表示段時間的狀語，如forfourdays,howlong等連用，而要改換動詞或者是時態(tài)。判斷正誤:

*Howlonghasthisbookbeenbought?()*Howlongagowasthisbookbought?()②短語動詞不能分割，而且不能省略短語動詞中的介詞或副詞。判斷正誤:

*Thepatienthasbeentakengoodcare.(

)*Thepatienthasbeentakengoodcareof.()XVXV③并不是所有的動詞都有被動語態(tài)。如happen,occur,takeplace,breakout,belongto,cost,last等不及物動詞或詞組，就沒有被動語態(tài)。判斷正誤:*Someofthebestconversationshaveeverhappenedaroundthedinnertable.(

)*Someofthebestconversationshappenedaroundthedinnertable.()④雙賓語動詞變被動語態(tài)可將其中的一個賓語變?yōu)橹髡Z,另一個保留不動。主動:Ihavegivenhimthekey.被動:He

hasbeengiven

thekey.被動:Thekey

hasbeengiven

tohim.V

X⑤帶復合賓語的動詞變被動語態(tài)時,只能將賓語變?yōu)橹髡Z,原來的賓補保留不動,改成主語補足語。

主動:Ihaveaskedhertohelpyou.被動:She

hasbeenaskedtohelpyou.主動語態(tài)中作賓語補足語的不帶to的不定式，變?yōu)楸粍訒r，要加上to。例：Theengineermade

therobotcleanthewindowsofthetallbuilding.Therobotwasmadetocleanthewindowsofthetallbuilding.1.Readthepairsofsentences.Underlineandcomparethedifferentverbforms.Jan'slifehasbeengreatlyimprovedbytheInternet.

TheInternethasgreatlyimprovedJan'slife.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.

VerbformActive__________________Passive

_________________have/has+v-edhave/hasbeen+v-ed1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.HaveyouconfirmedtheWi-Fipassword?4.Haveyoupressedthebuttonyettocopythefile?5.Hasanyonemadeacommentabouttheonlinedatabase?Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?

Hasthebuttonbeenpressedyettocopythefile?

Hasa/anycommentbeenmadeabouttheonlinedatabase?2.Changethesentencesintothepresentperfectpassivevoice.thebuildings,destroy,earthquakeThebuildingshavebeendestroyedbytheearthquake.Lookatthepictures,firstlistsomekeywords,thenmakeupsentencesusingthepresentperfectpassivevoice.machinereplacecomputerThemachinehasbeenreplacedbythecomputer.inourcity,anewbridge,buildAnewbridgehasbeenbuiltinourcity.recently,manytrees,plant,alongtheroadManytreeshavebeenplantedalongtheroadrecently.sevenHarryPorterbooks,J.K.Rowling,sofar,writeSevenHarryPorterbookshavebeenwrittenbyJ.K.Rowlingsofar.一、用動詞正確形式填空。1.FirstasaPCandthenasalaptop,I____________(use)inofficesandhomessincethe1970s.2.Over

timemymemory______________(develop)somuchthat,likeanelephant,IneverforgetanythingI___________(told).3.Since

the

1970smanynewapplications_____________(find)forme.4.Ihavealso___________(put)intorobotsandusedtomakemobilephonesaswellas______(help)withmedicaloperations.5.I____________________(put)intospacerocketsandsenttoexploretheMoonandMars.has

developedhave

been

told

have

been

used

have

been

foundbeenputhelphave

evenbeenput

Exercises二、用將下列句子改成被動語態(tài)。1.

Theyhavefinishedtheconstructionofthenewrailwaylinesbynow.Theconstructionofthenewrailwaylineshasbeenfinishedbythembynow.2.Wehavebuiltanewlibraryandagymnasiuminourschoolthisyear.Anewlibraryandagymnasiumhavebeenbuiltinourschoolthisyearbyus.3.Thecarfactoryhasproducedagreatmanyfinecarssincethetechnologicalrevolution.Agreatmanyfinecarshavebeenproducedbythecarfactorysincethetechnologicalrevolution.Ourartfestival____________(hold)nextmonth.Recently,manyEnglishplays_____________(try)andwefinallychooseashortEnglishplay.Sincethen,we___________________(practice)thesedays._________(know)thatyouhavemuchexperienceinEnglishplays,wehopeyoucangiveussomeadviceonit._______________(tell)theeffectivewaytopracticeandperform,westillneedyourfurtherguidance.We__________________(practice)attheschoolhallthisThursdayafternoon.We_______________(appreciate)itverymuchifyoucouldgiveussomesuggestions.willbeheldhavebeentriedhavebeenpracticingKnowingHavingbeentoldaregoingtopracticewouldappreciateIn1908,theOlympicGameswasheldhereforthefirsttime.TheOlympicGameshasbeenheldinmanycountriessincethe1900s.Hewasinvitedtodeliveraspeechlastweek.Hehasbeeninvitedtodeliveraspeechtomanycompaniessincehewasfamous.一般過去時的被動語態(tài)現(xiàn)在完成時的被動語態(tài)一般過去時的被動語態(tài)現(xiàn)在完成時的被動語態(tài)拓展Hehasbeentoldmanytimes,andhefinallyunderstoodit.Havingbeentoldmanytimes,hefinallyunderstoodit.Thepoorhavebeenoppressedandexploitedforsolong.Thepoor,havingbeenoppressedandexploitedforsolong,tookuptheirgunsandknivestokillrichnobles.現(xiàn)在完成時的被動語態(tài)現(xiàn)在分詞完成被動式現(xiàn)在完成時的被動語態(tài)現(xiàn)在分詞完成被動式1.We’vedonealotofworkonit,butwe_______________(finish)yet.2.Tom________________(work)inthelibraryeverynightoverthelastthreemonths.3.Morepublictransport_____________(build)inChina,makingiteasierforpeopletotravel.4.Progress_________(be)sofarverygoodandwearesurethattheworkwillbefinishedontime.5._____________(eat)atthecafeteriabefore,Tinadidn’twanttoeatthereagain.havenotfinishedhasbeenworkinghasbeenbuilthasbeenHavingeaten高考鏈接6.Noagreement____________(reach)yesterdayaftermanyroundsoftalks.7.Despitethepreviousroundsoftalks,noagreement_______________(reach)sofarbythetwosides.8.I________________(show)aroundtheWaterCubeformanytimessinceitwasbuilt.9._________________(show)aroundtheWaterCube,wewerethentakentoseetheBird’sNestforthe2008OlympicGames.wasreachedhasbeenreachedhavebeenshownHavingbeenshownWritingThinkofyourownsituationandwriteasimilarpoem.LookatthewayyourfacehasbeenwashedLookatthewayyourteethhavebeenbrushedLookatthewayyourshoeshavebeencleanedYou’dbetterdothemagai