《被动语态复习》PPT课件.ppt

被被 动动 语语 态态 复复 习习 被动语态的构成。被动语态的构成。被动语态由“助动词be及物动词的过去分词”构成。人称、数和时态的变化是通过be的变化表现出来的。常用时态的被动语态的构成：一般现在时一般现在时：am/is/are+过去分词 如：The flowers are watered every day.一般过去时一般过去时：was/were+过去分词 如：The house was built by the workers last year.现在进行时现在进行时：am/is/are+being+过去分词 如：His father is being sent to the hospital.现在完成时：have/has+been+过去分词 如：The work has been finished by them.一般将来时:will/shall+be+过去分词 如：The bridge will be built in two months.含情态动词的句子：can/must等+be+过去分词 如：Can your homework be handed in soon?主动语态变被动语态的方法。主动语态变被动语态的方法。主动语态的句子变被动语态的步骤：1.句子的主语变为宾语，前面加by（主语是人称代词时须变为宾格）。2.句子的宾语变为主语。3.谓语动词的主动形式变为被动形式（时态保持不变）。例如：He cleans his bedroom every day.His bedroom is cleaned by him every day.例如：He can speak French at the age of five.French can be spoken by him at the age of five.被动语态的特殊情况被动语态的特殊情况。1.动词不定式在使役性动词“make，let”等及感官动词“hear,watch,see,”等动词后作宾语补足语时，常省略。但变为被动语态时，后面要跟带的动词不定式。例如：Mother makes Tom do some housework every day.（变被动语态）误：Tom is made do some housework every day.正：Tom is made to do some housework every day.2.实义动词need的被动语态不是is/are+needed或need+be+过去分词，而是need+to+be+done或need+doing例如：He needs to repair his house.（变被动语态）误：His house is needed to repair by him.误：His house needs be repaired by him.正：His house needs to be repaired by him.正：His house needs repairing by him.被动语态跟踪练习题被动语态跟踪练习题一、根据句意，用所给动词的适当形式填空。1.Football (play)by Tom yesterday.2.A letter (write)to his pen friend by him now.3.The workers (make)(work)more than ten hours every day.4.The classroom (clean)by Jack on Wednesday.1.was played 2.is being written 2.3.are made,to work 4.is cleaned5.That film (see)twice by us.6.Some trees (plant)by the students next week.7.Li Lei often (hear)(sing)English songs.8.Their homework (can,finish)on time.5.has been seen 6.will be planted 7.is,heard,to sing 8.can be finished 句型转换句型转换：1.Last Sunday we heard them sing Peking Opera in that theatre.(改为被动语态)They were heard Peaking Opera in that theater last Sunday.2.We clean our classroom twice a day.(改为被动语态)Our classroom twice a day.3.People grow cotton in North China.(改为被动语态)Cotton in North China.1.to;sing 2.is;cleaned 3.is;grown4.Did she take the pictures near the Daming Lake when the guide showed her around the“Spring City”?(改为被动语态)the pictures near the Daming Lake when around the“Spring City”.5.People grow rice in the south of China.(改为被动语态)Rice in the south of China.4.Were;taken;she;was shown 5.is;grown 1.One or two man-made satellites _ in our country every year.A.have been sent up B.will be sent up C.is sent up D.are sent up2.Mr.Li,you _ on the phone.A.are wanted B.were wanted C.are being wanted D.will be wanted3.Food and clothes _ by women.A is often talk about B.are often talked C.are often talked about D.often talked about4.The baby _ when Mother is out.A.well looked after B.was looked well C.is well looked after D.was well looked after5.A lot of new buildings _ in our city these years.A.are put up B.have put up C.have been put D.have been put up1-5 D AC C A