人教版高二英语选修7第二单元语法课件ppt.ppt

被动语态和动词不定式的被动语态 Unit2Grammar DiscoveringusefulstructuresGooverthepassivevoiceMyhamburgerwaseatenbythedog Anewhospitalwillbebuiltinourcity 被动语态由be 过去分词构成 be随时态的变化而变化 一般现在时 am is are P PTheclassroomiscleaned 一 被动语态的构成 一般过去时 was were p pThesecomputersweremadeinourowncountry 一般将来时 will shallbe p pShallwebeaskedtoattendtheopeningceremony 过去将来时 wouldbe p pThenewswouldbesenttothesoldier smotherassoonasitarrived 现在进行时 am is arebeing p pTreesarebeingplantedovertherebythem 过去进行时 was werebeing p pThefeastwasbeingpreparedwhenthebirdsarrivedinthesky 现在完成时 have hasbeen p pSwiftprogresshasalsobeenmadeincultureandeducation 过去完成时 hadbeen p pThehugebridgehadbeendamagedbeforetheWorldWarII 将来完成时 will shallhavebeen p pThebookwillhavebeenpublishedbytheendofnextmonth 含有情态动词的动词变成被动语态 情态动词 be 过去分词 Thisproblemcanbesolved 这问题可解决 What sdonecannotbeundone 覆水难收 二 动词不定式的被动语态一般时tobedone完成时tohavebeendoneIperfertobeleftathomeratherthangoshopping Theriverisreportedtohavebeenpolluted 1 Thedishesneed 2 Themailneedsrightaway wash send tobewashed tobesent 三 不定式的主动形式表示被动 1 在therebe结构中 Thereisalotofhomeworktodo 也可用tobedone Thereisnotimetolose tobelost 2 在 n pron be adj todo 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 Heishardtoconvince 3 在 too todo enough to 结构中 如 Theproblemistoodifficulttoworkout tobeworkedout Thehouseisbigenoughtolivein 4 在 with n todo 结构中 Withnothingtodo helayinbed Withsomanyexercisestodo Ican tgotothecinema 5 一些作表语用的不定式的主动形式 常见的这类动词有let 出租 rent hire blame等 Thehouseistolet IfeltIwastoblame 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 Youmustn ttakethosebooksoutofthereading room Thosebooksmustn tbetakenoutofthereading room 8 Ididn ttellyouthegirlcoulddothejob Youweren ttoldbymethatthegirlcoulddothejob 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 Yourmistake