初中英语被动语态PPT课件.ppt
被动语态,一 概念 主动语态表示主语是动作的执行者,被动语态表示主语是动作的承受者。在以下情况中使用被动语态：1.讲话者不知道动作的执行者或不必说出动作的执行者时。（eg）My bike was stolen last night.2.借助被动的动作突出动作的执行者。（eg）I was given ten minutes to decide whether I should accept the offer.3.为了更好地安排句子。（eg）The well-known person got on the bus and was immediately recognized by people.,二 构成,1.被动语态的基本时态变化以do为例，各种时态的被动语态形式为：1）am/is/are+done 一般现在时（eg）Visitors are requested not to touch the exhibits.2）has/have been done 现在完成时（eg）All the preparations for the task have been completed,and were ready to start.3）am/is/are being done 现在进行时（eg）A new cinema is being built here,4）was/were done 一般过去时（eg）I was given ten minutes to decide whether I should reject the offer.5）had been done 过去完成时（eg）By the end of last year,another new gymnasium had been completed in Beijing.6）was/were being done 过去进行时（eg）A meeting was being held when I was there.,二 构成,7）shall/will be done 一般将来时（eg）Hundreds of jobs will be lost if the factory closes.8）should/would be done 过去将来时（eg）The news would be sent to the soldiers mother as soon as it arrived.,二 构成,2.情态动词的被动语态结构为：情态动词+be+过去分词 其时态及句型的变化仅由情态动词完成，“be+过去分词”部分不变。如：Tables can be made of stone.Tables could be made of stone at that time.Can tables be made of stone?,二 构成,三 被动语态的几种类型：1 主动句中有一个宾语的被动语态 He saw her in the shop yesterday.She was seen in the shop yesterday.2 主动句中有二个宾语的被动语态 Jim gave me a book.I was given a book by Jim.A book was given to me by Jim.,3 主动句中含有宾语补足语句子的被动语态 Mother told me not to be late.I was told not to be late by mother.I saw mother planting flowers in the garden.Mother was seen planting flowers in the garden.They made him work 12 hours a day.He was made to work 12 hours a day.,4 短语动词的被动语态 I can take good care of the baby.The baby can be taken good care of.,1be covered with 被覆盖 2be made of 由制作（发生物理变化）be made from 由制作（发生化学变化）be made in 由（某地）制造 be made by 被（某人）制造 3be used for 被用来 be used as 被当作（作为）来使用 be used to do sth 被用来做某事 4It is said that 据说 It is hoped that 希望 It is well known that众所周知,牢记（相关）句型,Practice:1 Must I pay for it at once?_ it _ _ _ at once?2 We will build a new lab.A new lab _ _ _.3 They arent stopping the traffic now.The traffic _ _ _ now.4 How long have you kept the book?How long _ the book _ _?,Must,be,paid,for,will,be,built,isnt,being,stopped,has,been,kept,5 If your homework _(do)well,you may go to play.6 Mr.Green was seen _(grow)trees.7 The blackboard was _(look)carefully by the students.8 The ship model _ be _(make)in two days.,is done,to grow,looked at,will,made,【考点聚焦】,make sb.dosee sb.dohear sb.dolet sb.dowatch sb.do,be made to do be seen to dosb.be heard to do be let to do be watched to do,give sb.sth.pass sb.sth.sell sb.sth.lend sb.sth.bring sb.sth.make sb.sth.buy sb.sth.,be given to sb.be passed to sb.be sold to sb.sth.be lent to sb.be brought to sb.be made for sb.be bought for sb.,主动,被动,主动,被动,【考点聚焦】,look for look aftertake care ofhand inlaugh atspeak to,be looked forbe looked afterbe taken care ofbe handed inbe laughed atbe spoken to,不要漏掉介词.,没有被动语态的词或短语.,cost,happen,take place,close down,feel,sound,taste,smell,look,come out,come up,break down,stand for,spread,Summary&Homework,
