初中英语被动语态讲解及练习ppt.ppt

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1、PassiveVoice被动语态英语动词有两种语态：主动语态和被动语态。1.当我们不知道谁是动作的执行者,2.或者只需强调动作的承受者时，要用被动语态。被动语态结构：be+过去分词(PP)+(by…)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一般将来时现在进行时am/is/arebeingdone现在完成时am/is/aredonewas/weredone(shall/will/begoingto)bedonehave/hasbeendone情态动词的被动语态情态动词+be+donemustbedone/mustn’tbedones

2、houldbedone/shouldn’tbedonecanbedone/can’tbedonemaybedone/mightbedone各种时态的被动语态构成1）一般现在时：Youareinvitedtodothis.2）一般过去时：Thestorywastoldbyher.3）一般将来时：Theproblemwillbediscussedtomorrow.看一看想一想4)情态动词：Therubbishcanbeputintothedustbinoverthere.在改写中应注意：1.把原来的宾语提到前面作被动语态的主语;2.把动词变成“be+

3、过去分词”;3.主动语态中的主语变为介词by的宾语。ManypeoplespeakChinese.Chineseisspokenbymanypeople.Heplantstreesinspring.主谓宾(受动者)Treesareplantedbyhim改为被动语态inspring.Tomwillcleantheroomtomorrow.主谓宾(受动者)TheroomwillbecleanedbyTomtomorrow.Hisbrotherwashesbowlseveryday.主谓宾(受动者)Bowlsarewashedbyhisbrother

4、everyday.1.Peopleuseknivesforcuttingthings.Knives____________forcuttingthings.2.Thestudentscleanthewindowsoftheirclassroomtwiceamonth.Thewindowsoftheirclassroom_____________twiceamonth.EXERCISESareusedarecleaned(变被动语态）3.Ifoundtheticketonthefloor.________________________onthef

5、loor.4.Itoldhertoreturnthebookintime.She_____________toreturnthebookintime.Theticketwasfoundwastold5.Hisdoctormadehimhaveonlytwomealsaday.He___________________________onlytwomealsaday.6.Nowpeoplecanusecomputerstohelpthem.Nowcomputers___________________tohelpthem.wasmadetohave

6、canbeused10.TheteacheraskedTomtoturnonthecomputer.Tom_______________toturnonthecomputer.11.Inthisfactorywomendomostofthework.Mostofthework_______________bywomeninthisfactory.wasaskedisdone12.Hecanmendthebikeintwodays.Thebike___________________intwodays.13.Youmusttakethismedic

7、inethreetimesaday.Thismedicine______________________threetimesaday.canbemendedmustbetaken14.ThestudentsstudyGermaninthisschool.German_______________bythestudentsinthisschool.15.Dotheyoftentalkaboutthisquestion?______thisquestionoften_______about______________?isstudiedIstalke

8、dbythem1)Teenagersshould_____(allow)togooutatnight.2)Thetelephone___