人教版初三英语unit 5 grammar focus课件.ppt

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1、被动语态thepassivevoicebe+Verb-过去分词一般现在时的被动语态am/is/are+Verb-过去分词一般过去时的被动语态was/were+Verb-过去分词动词过去分词变化规则一般情况下,动词词尾加-ed,如：workedplayedwantedacted以不发音的-e结尾动词,动词词尾加-d,如：livedmoveddecideddeclinedhopedjudgedraisedwiped以辅音字母+y结尾的动词,把-y变为-i再加-ed,如：studiedtriedcopiedjustifie

2、dcriedcarriedembodiedemptied以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加-ed,stoppedbeggedfretteddraggeddroppedplanneddotteddripped不规则动词的过去式变化一、AAA型put—put—putcut—cut—cutshut—shut—shut二、ABA型run—ran—runcome—came—comebecome—became—become三、ABB型buy—bought—boughtbring—brought—brough

3、tthink—thought—thought四、ABC型grow—grew—grownknow—knew—knownbegin—began—begun写出下列动词的过去分词1.bear9.find2.become10.grow3.begin11.hurt4.bring12.know5.buy13.write6.come14.think7.cut15.tell8.do16.sell英语动词有两种语态：主动语态和被动语态。WespeakEnglish.主动语态主语Englishisspokenbyus.被动语态主语主动语态

4、动词的主语是动作的执行者（发出者），而被动语态动词的主语是动作的承受者。4a1.Childrenunder18_____(notallow)towatchthisshowwithouttheirparents.2.We___(pay)bythebossonthelastFridayofeachmonth.3.A:Whatlanguage___(speak)inGeramny?B:MostpeoplespeakGerman,butmanycanspeakEnglish,too.4.Mostoftheearth'ssurf

5、ace___(cover)bywater.5.Theclassroom___(clean)bythestudentseveryday.aren'tallowedarepaidisspokeniscoverediscleaned找出主动语态和被动语态转换的规律1.Teaplantsaregrownonthesidesofmountains.→Peoplegrowteaplantsonthesidesofmountains.2.Theleavesarepickedbyhand.→Peoplepicktheleavesbyh

6、and.3.Theteaispackedandsenttomanydifferentcountries.→Peoplepacktheteaandsendittomaydifferentcountries.WespeakEnglish.Englishisspokenbyus.主动语态被动语态主语谓语宾语主语谓语宾语宾变主,主变宾,前加by动变被,看清be,结构分别be+ppShewaterstheflowerseveryday.主谓宾Theflowersarewateredbyhereveryday.1234规律总结主语

7、be+动词过去分词by+宾语将下列主动句变为被动句1.Peopleplayfootballallovertheworld.Footballisplayedallovertheworldbypeople.2.TheoldmanonTVtellsastoryonSunday.AstoryistoldbytheoldmanonTVonSunday.3.Studentslistentothekindteachercarefully.Thekindteacherislistenedtobystudentscarefully.4b

8、1Farmersplanttheteaonthesidesofmountains.2Thisshopusesthebestmaterialtomakedress.3.Carelessdrivingcausesmanytrafficaccidents.4.Thepostmanbringslettersandpostcardstope