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ThePassiveVoiceMissZeng英语动词有两种语态：主动语态(theActiveVoice)被动语态(thePassiveVoice)Whatisit?A.主动语态表示主语是动作的执行者,发出者。B.被动语态表示主语是动作的承受者。Weplantedthetree.Thetreewasplantedbyus.WespeakEnglish.主语谓语宾语Englishisspokenbyus.主语谓语宾语主动语态被动语态Whentouseit?1.当我们不知道谁是动作的执行者，或没有必要指出谁是动作的执行者时。2.当我们需要强调动作承受者，而不是动作的执行者。这本词典被保存完好(不需要说明是谁保存的)。这些书是在二十世纪二十年代发现的。（强调书被发现而不是强调由谁发现）Thedictionaryiswellkept.Thesebookswerefoundinthe1920s.助动词be+及物动词的过去分词be+P.P.+(bysb)注意：1:助动词be有人称、数的变化.2:2:只有及物动词才有被动语态只有及物动词才有被动语态。被动语态的结构(structure):1.Theymakeshoesinthatfactory.主语+及物动词+宾语Shoesaremade(bythem)inthatfactory.一般现在时：S(主语）+am/is/are+过去分词主变被解题步骤: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+主语.bythem.主动变被动应注意的情况：1.把原原来的宾语宾语提到前面作被动语态的主语主语;;2.把动词变成“be+be+过去分词过去分词”;3.主动语态中的主语主语变为介词byby的宾语。宾语。主动语态变被动语态口诀：宾语提前主语变，时态人称be关键,原主变宾by后见。TheyplayfootballonSunday.TheyplayfootballonSunday.Lucydoesthehomeworkintheevening.Lucydoesthehomeworkintheevening.Theyoftenusecomputersinclass.Theyoftenusecomputersinclass.WemakethesemachinesinChina.WemakethesemachinesinChina.PeoplespeakEnglishasthefirstlanguagePeoplespeakEnglishasthefirstlanguageinUK.inUK.FootballisplayedbythemonSunday.ThehomeworkisdonebyLucyintheevening.Computersareoftenusedbytheminclass.ThesemachinesaremadebyusinChina.EnglishisspokenasthefirstlanguageinUK.你知道这些被动句的否定句和一般疑问句吗？2.Theyboughttencomputerslastterm．Tencomputerswerebought(bythem)lastterm.一般过去时：S+was/were+过去分词Theybuiltthetallbuildinglastyear.Theybuiltthetallbuildinglastyear.HetookgoodcareofhislittlebrotherHetookgoodcareofhislittlebrotheryesterday.yesterday.Wecleanedourclassroomjustnow.Wecleanedourclassroomjustnow.Theyusedthisroomforresting.Theyusedthisroomforresting.Theyplantedmanytreesyearsago.Theyplantedmanytreesyearsago.Thetallbuildingwasbuiltbythemlastyear.Hislittlebrotherwastakengoodcareofbyhimyesterday.Ourclassroomwascleanedbyusjustnow.Thisroomwasusedforrestingbythem.Manytreeswereplantedbythemyearsago.3.Theywillfinishtheworkintendays.Theworkwillbefinished(bythem)intendays.一般将来时：S+will+be+过去分词3:3:TheyTheyaregoingtohavearegoingtohaveaneveninganeveningpartypartytomorrow.tomorrow.AneveningpartyAneveningpartyisgoingtobehadisgoingtobehad((bybythem)tomorrow.them)tomorrow.一般将来时：S+begoingtobe+过去分词Wewillhaveasportsmeetingnextweek.Wewillhaveasportsmeetingnextweek.ChildrenwilltakesomephotosontheChildrenwilltakesomephotosontheplaygroundtomorrow.playgroundtomorrow.TheheadmasterwillgiveatalkthisTheheadmasterwillgiveatalkthisafternoon.afternoon.UncleWangisgoingtomendtheTVsetUncleWangisgoingtomendtheTVsettomorrow.tomorrow.Asportsmeetingwillbehadbyusnextweek.Somephotoswillbetakenbychildrenontheplaygroundtomorrow.Atalkwillbegivenbytheheadmasterthisafternoon.TheTVsetisgoingtobemendedbyUncleWangtomorrow.4．AmycantakegoodcareofTina．T...