Grammar (2).ppt

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1、写出下列动词的过去式和过去分词dogoseegivechoosedraweattakespeakwriteshowdiddonewentgonesawseengavegivenchosechosendrewdrawnateeatentooktakenspokespokenwrotewrittenshowedshown被动语态中考英语专项复习复习目标1.掌握如何将主动语态变成被动语态2.掌握被动语态各个时态的用法什么时候要用被动语态呢？在下列三种情况之一要用被动语态：①不知道动作的执行者是谁，用被动

2、语态。②没有必要指出谁是动作的执行者，用被动语态。③需要强调动作的承受者时，用被动语态主动语态和被动语态结构的转换：Wecleanourclassroomeveryday.主动语态Ourclassroomiscleaned主语谓语宾语byuseveryday.结构：主动语态：主语＋谓语＋宾语被动语态：主语be+过去分词by+宾语即:“主变宾，宾变主，谓语动词变被动。”(注:主变宾即主语变为介词by宾语)被动语态主语谓语宾语【考点一】各种时态的被动语态结构:1.Theymakeshoesinthat

3、factory.Shoesaremade(bythem)inthatfactory.1.一般现在时的被动语态：变为被动语态一S(主语）+am/is/are+过去分词步骤一：Exercises（针对练习，变被动语态）TheyplayfootballonSunday.Lucydoesthehomeworkintheevening.Theyoftenusecomputersinclass.WemakethesemachinesinBeijing.FootballisplayedbythemonSunda

4、y.ThehomeworkisdonebyLucyintheevening.Computersareoftenusedbytheminclass.ThesemachinesaremadebyusinBeijing.Helookedafterthelittlebabyyesterday.主谓(动介)宾语Thelittlebabywaslookedafterbyhimyesterday.变为被动语态二主动语态：被动语态：2.一般过去式的被动语态：S+was/were+过去分词步骤二：Exercises

5、（针对练习，变被动语态）1）Theybuiltthetallbuildinglastyear.2)Hetookgoodcareofhislittlebrotheryesterday.3)Wecleanedourclassroomjustnow.4)Theyusedthisroomforresting.Thetallbuildingwasbuiltbythemlastyear.Hislittlebrotherwastakengoodcareofbyhimyesterday.Ourclassroomw

6、ascleanedbyusjustnow.Thisroomwasusedforrestingbythem.注：动词短语作谓语，变被动语态时，不能省掉短语中的介词或副词Tomwillcleantheroomtomorrow.主谓宾(承受者)TheroomwillbecleanedbyTomtomorrow.变为被动语态三3.一般将来时被动语态：S+will+be+过去分词S+begoingto+be+过去分词Wewillholdasportsmeetingnextweek.Childrenwillt

7、akesomephotosintheschoolyardtomorrow.Theheadmasterisgoingtogiveatalkthisafternoon.Asportsmeetingwillbeheldbyusnextweek.Somephotoswillbetakenbychildrenintheschooltomorrow.Atalkisgoingtobegivenbytheheadmasterthisafternoon.步骤三：Exercises（针对练习，变被动语态）Wehave

8、madetwentymorekeys．Twentymorekeyshavebeenmadebyus.变为被动语态四11.现在完成时的被动语态：S+have/has+been+过去分词1.Theboyhasreturnedthebookintime步骤三：Exercises（针对练习，变被动语态）2.Workershavebuiltthehousesincetwoyearsago3.Wehavereceivedmanyletterssincelastweek.Thebookhasbe