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被动语态同学们，初中阶段的八种时态我们已经学完了。时态表示的是动作在什么样的时间之下发生的，强调的是时间概念，所以关于这八种时态的各自时间状语大家一定要记准。今天我们来学习语态。什么是语态呢？语态有几种呢？语态是动词的一种形式，表示主语和动词之间的关系。英语动词有两种语态：主动语态和被动语态。主动语态动词的主语是动作的执行者，而被动语态动词的主语是动作的承受者。被动语态是动词的一种特殊形式，一般说来，只有及物动词才有被动语态，不及物动词没有被动语态。英语语态表格：被动态基本结构时态被动语态结构一般现在时一般过去时现在进行时过去进行时一般将来时过去将来时现在完成时过去完成时am/is/are+donewas/were+doneam/is/arebeing+donewas/werebeing+doneshall/willbe+donewouldbe+donehave/hasbeen+donehadbeen+done情态动词的被动语态结构是必须背下来的。结构为：情态动词+be+动词的过去分词Thebasketcanbecarriedbyhim.一：英语的谓语动词有两种语态WespeakEnglish.主语谓语宾语Englishisspokenbyus.主语谓语宾语宾变主,主变宾,前加by“被”(若动作的执行者没有必要说明则可以省略该by短语)。主动语态被动语态主变被解题步骤:1.找宾语----即动作的承受者Theymakeshoesinthatfactory.Shoes2.判断宾语的单复数----即be动词的单复数.arewere3.判断动词的时态----即be动词的时态.4.修改谓语的时态----即原句动词改为过去分词made5.修改原句的主语----即by+宾语.bythem.[注意]①把主动语态改为被动语态时，句子的时态不能变。如，所给的主动句子是一般现在时，改为被动语态时，也要用一般现在时。②如果主动句中的主语是人称代词，改为被动句时作介词by的宾语，要用宾格。如主语we改为us。把下列主动句改为被动句①Lilywritesmanyletterseveryday.(主动)②Theyvisitedthisfarmlastyear.（主动）③Wehavelearned3000Englishwordssofar.（主动）→ManylettersarewrittenbyLilyeveryday.→Thisfarmwasvisitedbythemlastyear.→3000Englishwordshavebeenlearnedbyussofar.Tombrokethewindow.ThewindowwasbrokenbyTom.Tombrokethewindows.ThewindowswerebrokenbyTom.Hebrokethewindows.Thewindowswerebrokenbyhim.当句中有时间状语或者地点状语时，时间状语或者地点状语位置放在哪呢？如：Theymakeshoesinthatfactory.1.Theymakeshoesinthatfactory.主语+及物动词+宾语Shoesaremadebytheminthatfactory.一般现在时：S(主语）+am/is/are+过去分词注意：当时间状语和地点状语都出现时，时间状语放在句子最末尾。Heridesthemotorbiketohisfactoryeveryday.Themotorbikeisriddentohisfactoryeveryday.WecallthesnowmanMrStrong.ThesnowmaniscalledMrStrong.Weusuallyhearhimplayinthenextroom.Heisusuallyheardtoplayinthenextroom.Heboughthisfriendsomefruitsyesterday.Hisfriendwasboughtsomefruitsyesterday.Somefruitswereboughtforhisfriendyesterday.4．AbycantakegoodcareofTina．TinacanbetakengoodcareofbyAby.情态动词：S+can/may/must/should+be+过去分词Hecancarrythebasketeasily.Thebasketcanbeeasilycarriedbyhim.Theycansingsomebeautifulsongs.Somebeautifulsongscanbesungbythem.“Wemustputtheminthefridge.”Thedogsthought.“Theymustbeputinthefridge.”Thedogsthought.3.Theywillfinishtheworkintendays.Theworkwillbefinished(bythem)intendays.一般将来时：S+will+be+过去分词Theyaregoingtohaveaneveningpartytomorrow.Aneveningpartyisgoingtobehadtomorrow.Someworkersarepaintingtheroomsnow．Theroomsarebeingpaintedbysomeworkersnow.现在进行时：S+am/is/are+being+过去分词Theyareholdingasportsmeetingnow.Asportsmeetingisbeingheld(bythem)now.Wehavemadetwentymorekeys．Twentymorekeyshavebeenmadebyus.现在完成时：S+have/has+been+过去分词Workershavebuiltthehousesincetwoyearsago.Thehousehasbeenbuiltsincetwoyearsago.Wehadreceivedmanylettersbytheendoflastweek.Manylettershadbeenreceivedbytheendoflastweek.Theywouldhaveapartythenextday.Apartywouldbehad(bythem)thenextday.1.Peopleuseknivesforcuttingthings.Knives____________forcuttingthings.2.Thestudentscleanthewindowsoftheirclassroomtwiceamonth.Thewindowsoftheirclassroom_____________twiceamonth.areusedarecleaned(变被动语态）七嘴八舌3.Ifoundtheticketonthefloor.________________________onthefloor.4.Itoldhertoreturnthebookintime.She_____________toreturnthebookintime.Theticketwasfoundwastold3.Wefoundtheticketonthefloor.5.Hisdoctormadehimhaveonlytwomealsaday.He___________________________onlytwomealsaday.6.Nowpeoplecanusecomputerstohelpthem.Nowcomputers___________________tohelpthem.wasmadetohavecanbeused使让动词的被动语态后面要接todo.即：makesb.dosth.sb.bemadetodosth.7.Didyouplantmanytreesatthistimelastyear?___________________________atthistimelasttime?8.Mustwefinishourworktoday?_______ourwork_____________today?WeremanytreesplantedMustbefinished9.Theforeignfriendsgaveussomewonderfulstamps.1)____________________somewonderfulstamps.2)Somewonderfulstamps_____________________________.weweregivenweregiventous10.TheteacheraskedTomtoturnonthecomputer.Tom_______________toturnonthecomputer.11.Inthisfactorywomendomostofthework.Mostofthework_______________bywomeninthisfactory.wasaskedisdone12.Hecanmendthebikeintwodays.Thebike___________________intwodays.13.Youmusttakethismedicinethreetimesaday.Thismedicine______________________threetimesaday.canbemendedmustbetaken14.ThestudentsinthisschoolstudyGerman.German_______________bythestudentsinthisschool.15.Dotheyoftentalkaboutthisquestion?______thisquestionoften_______about______________?isstudiedIstalkedbythem学习被动语态要注意以下难点1、被动语态介词固定搭配不能省略。2、不及物动词没有被动语态。3、带双宾语的动词变被动语态有两种方法。4、连系动词+adj,用主动式表被动义。5、表示主语的属性特征的动词+副词well/badly/easily/smoothly,用主动式表被动义。在被动语态中要注意的问题在上面我们已经初步了解了被动语态的构成和主动变被动的方法。下面我们接着学习在被动语态中要注意的问题。①一些使役动词(let,have,make等)或感观动词(see,hear,watch,notice等)在主动语态中后面接的动词不定式不带to，但改为被动语态时，要补上to。如：A.Thebossmakestheworkerswork18hoursaday.Theworkersaremadetowork18hoursadaybytheboss.B.Isawhimenterthehouse.Hewasseentoenterthehousebyme.C.Theteacherletthemleavetheclassroomafterclass.Theywerelettoleavetheclassroombytheteacherafterclass.D.Wehearhersingintheroomeveryday.Sheisheardtosingintheroomeveryday.[注意]当使用see/hear/watchsbdoingsth时，变为被动语态时，doing保持不变。如：Isawhimgoingintotheshop.(主动)Hewasseengoingintotheshop.(被动)使役动词和感观动词主被动语态对照表主动语态被动语态使役动词makesbdosthsbbemadetodosthhavesbdosthsbbehadtodosthletsbdosthsbbeletto