人教版高二英语选修7第二单元语法课件ppt.ppt
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被动语态和动词被动语态和动词不定式的被动语态不定式的被动语态Unit2GrammarDiscoveringusefulstructuresGooverthepassivevoiceMyhamburgerwaseatenbythedog.Anewhospitalwillbebuiltinourcity.被动语态由被动语态由be+过去分词构成,过去分词构成,be随时态的变化而变化。
随时态的变化而变化。
一般现在时:
一般现在时:
am/is/are+P.PTheclassroomiscleaned.一、被动语态的构成一、被动语态的构成一般过去时:
一般过去时:
was/were+p.pThesecomputersweremadeinourowncountry.一般将来时:
一般将来时:
will/shallbe+p.pShallwebeaskedtoattendtheopeningceremony?
过去将来时:
过去将来时:
wouldbe+p.pThenewswouldbesenttothesoldiersmotherassoonasitarrived.现在进行时:
现在进行时:
am/is/arebeing+p.pTreesarebeingplantedovertherebythem.过去进行时:
过去进行时:
was/werebeing+p.pThefeastwasbeingpreparedwhenthebirdsarrivedinthesky.现在完成时:
现在完成时:
have/hasbeen+p.pSwiftprogresshasalsobeenmadeincultureandeducation.过去完成时:
过去完成时:
hadbeen+p.pThehugebridgehadbeendamagedbeforetheWorldWarII.将来完成时:
将来完成时:
will/shallhavebeen+p.pThebookwillhavebeenpublishedbytheendofnextmonth.含有情态动词的动词变成被动语态:
情含有情态动词的动词变成被动语态:
情态动词态动词+be+过去分词过去分词Thisproblemcanbesolved.这问题可解决。
这问题可解决。
Whatsdonecannotbeundone.覆水难收。
覆水难收。
二、动词不定式的被动语态二、动词不定式的被动语态一般时一般时tobedone完成时完成时tohavebeendoneIperfertobeleftathomeratherthangoshopping.Theriverisreportedtohavebeenpolluted.1.Thedishesneed2.Themailneedsrightaway.washsendtobewashed.tobesent三、不定式的主动形式表示被动三、不定式的主动形式表示被动1.在在therebe结构中。
结构中。
Thereisalotofhomeworktodo.(也可用也可用tobedone)Thereisnotimetolose(tobelost).2.在在“n.pron+be+adj.+todo”结构中。
常用的形容词有结构中。
常用的形容词有easy,difficult,hard,impossible,nice,pleasant,light,heavy,interesting,important,expensive,cheap,fit,dangerous等。
等。
Heishardtoconvince.3.在在“tootodo;enoughto”结构中。
结构中。
如:
如:
Theproblemistoodifficulttoworkout(tobeworkedout).Thehouseisbigenoughtolivein.4.在在“with+n.+todo”结构中。
结构中。
Withnothingtodo,helayinbed.Withsomanyexercisestodo,Icantgotothecinema.5.一些作表语用的不定式的主动形式。
一些作表语用的不定式的主动形式。
常见的这类动词有常见的这类动词有let(出租出租),rent,hire,blame等等。
Thehouseistolet.IfeltIwastoblame.用被动语态改换下列各句。
用被动语态改换下列各句。
1.Myfatherwillrepairmybikeforme.Mybikewillberepairedbymyfatherforme.2.Ihavefoundmywallet.Mywallethasbeenfound.3.Shetoldmetowaithereforher.Iwastoldtowaithereforher.4.Thepolicewillsurelyarrestthemurderer.Themurdererwillsurelybearrestedbythepolice.5.TheyinvitedMr.Greentomakeaspeech.Mr.Greenwasinvitedtomakeaspeech.6.Thestudentscleantheirclassroomeveryday.Theirclassroomiscleanedbythestudentseveryday.7.Youmustnttakethosebooksoutofthereading-room.Thosebooksmustntbetakenoutofthereading-room.8.Ididnttellyouthegirlcoulddothejob.Youwerenttoldbymethatthegirlcoulddothejob.9.DopeoplespeakEnglishinyourcountry?
IsEnglishspokeninyourcountry?
10.Hegavemeapresent.Iwasgivenapresent.Apresentwasgiventome.11.Motheroftentellsherchildrenastoryatbedtime.Childrenareoftentoldastoryatbedtimebymother.Astoryisoftentoldbymothertochildrenatbedtime.1.Knives_(use)forcuttingthings.2.Thebuilding_(build)in1987.3.Nuclearenergy_(use)toproduceelectricitybyus.4.Severalbigmodernpowerplants__(build)inourcitynextyear.5.Yourmistakes_(correct)rightnow.6.Mybike_(repair)byTomnow.用被动语态填空。
用被动语态填空。
areusedwasbuilthasbeenusedwillbebuiltshouldbecorrectedisbeingrepaired