Unit 8 What are the shirts made of Section A--被动语态.ppt

Unit8Whataretheshirtmadeof?SectionA-被动语态,被动语态的基本构成：be+动词的过去分词（be+done),1.一般现在时的被动语态am/is/are+done,Wecleantheclassroomeveryday.Theclassroomiscleanedbyuseveryday.,Heputonacoat.Acoatwasputonbyhim.,2.一般过去时的被动语态was/were+done,Hemadethekite.Thekitewasmadebyhim.,3.一般将来时的被动语态shall/will/begoingto+bedone,Theywillplanttreestomorrow.Treeswillbeplantedbythemtomorrow.Heisgoingtowritealettertohismother.Aletterisgoingtobewrittentohismotherbyhim.,4.现在完成时的被动语态has/have+beendone,Jimhasfinishedthework.TheworkhasbeenfinishedbyJim.,5.含有情态动词的被动语态,can/may/must/should+bedone,Icanfindhim.Hecanbefoundbyme.,被动语态的用法,1.不知道动作的执行者是谁。,这块手表是中国制造的。ThiswatchismadeinChina.,2.没有必要指出动作的执行者。,每年都应该种更多的树。Manytreesshouldbeplantedeveryyear.,3.需要强调或突出动作的承受者。,世界上越来越多的人说汉语。Chineseisspokenbymoreandmorepeopleintheworld.,4.句子的主语是动作的承受者。,许多房屋被冲走了。Manyhouseswerewashedawaybytheflood.,补充部分：,1.主动结构表被动意义,open,lock,write,read,sell,wash,cut,burn,drive等词作不及物动词时，它们的主语为物，可以用主动语态表被动意义。,Thiskindofshirtsellswell.,2.look,sound,taste,smell等系动词用主动表被动意义。例：Itsmellswonderful.Mooncakestastedelicious.,3.在beworthdoing中，doing表被动意义。例：Thisbookisworthreading.,4.want/need/require+doing=want/need/require+tobedone例：Mybikeneedsrepairing.=Mybikeneedstoberepaired.我的自行车需要修理。,课堂练习（一）改写句子1.Weplanttreesinspringeveryyear._byusinspringeveryyear.2.Shepostedtheletteryesterday._byheryesterday.3.Mr.Turnergavemeabirthdaypresent._abirthdaypresentbyMr.Turner.,Treesareplanted,Theletterwasposted,Iwasgiven,5.Youmayhandinyourhomeworktomorrow._byyoutomorrow.6.Sheisgoingtowritealetter._byher.,Yourhomeworkmaybehandedin,Aletterisgoingtobewritten,（二）单项选择1.Ifcitynoises_fromincreasing,people_shouttobeheardevenatdinner.A.arenotkept;willhavetoB.arenotkept;haveC.donotkeep;willhavetoD.donotkeep;haveto2.Thefifthgenerationcomputers,_andperfectednow.A.developedB.havedevelopedC.arebeingdevelopedD.willhavebeendeveloped,A,C,3.-_thesportsmeetmightbeputoff.-Yes,italldependsontheweather.A.IvebeentoldB.IvetoldC.ImtoldD.Itold4.Ineedonemorestampbeforemycollection_.A.hascompletedB.completesC.hasbeencompletedD.iscompleted5.Rainforests_andburnedatsuchaspeedthattheywilldisappearfromtheearthinthenearfuture.A.cutB.arecutC.arebeingcutD.hadbeencut,A,D,C,6.Thenewbridge_bytheendoflastmonth.A.hasbeendesignedB.hadbeendesignedC.wasdesignedD.wouldbedesigned7.Whenpartofapencilisinaglassofwater,itlooksasifit_.A.breaksB.hasbrokenC.wasbrokenD.hadbeenbroken,B,C,常用的被动语态短语,bemadeoffr