初中 被动语态 精选PPT.ppt
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1、初中 被动语态 第1页,此课件共32页哦英语动词有两种语态:英语动词有两种语态:主动主动语态和语态和被动被动语态。语态。1.1.当我们不知道谁是动作的执行者当我们不知道谁是动作的执行者,2 2.或者只需强调动作的承受者时,要用或者只需强调动作的承受者时,要用被动语态被动语态。被动语态被动语态结构:结构:be+过去分词过去分词(PP)+(by)在改写中应注意:在改写中应注意:1.把把原原来的来的宾语宾语提到前面作被动语态的提到前面作被动语态的主语主语;2.把把动词动词变成变成“be+过去分词过去分词”;3.主动语态中的主动语态中的主语主语变为介词变为介词by的的宾语宾语。第2页,此课件共32页哦
2、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现在进行时过去进行时一般将来时过去将来时现在完成时过去完成时am/is/are donewas/were doneam/is/are being donewas/were being done(shall/will/be going to)be donewould be donehave/has been donehad been done第3页,此课件共32页哦情态动词的被动语态情态动词+be+donemust be done/mustnt be doneshould be done/shouldnt be donecan be don
3、e/cant be donemay be done/might be done第4页,此课件共32页哦Some people attacked the towers.S V O The towers were attacked S V by some people.第5页,此课件共32页哦Oral practice-主动句改被动句 Oral practice-1.Change each sentence into passive voice:1)A car knocked him down yesterday.2)These two kids plant trees every year3)W
4、e should protect the earth4)Well put on the play next SundayHe was knocked down by a car yesterdayTrees are planted by these two kids every year.The earth should be protected by us.The play will be put on next Sunday.第6页,此课件共32页哦几种特殊结构几种特殊结构1.My uncle gave me a gift on my birthday2.We often hear him
5、 play the guitarI was given a gift on my birthdayA gift was given to me on my birthday.He is often heard to play the guitar注意:注意:see,watch,hear,notice,feel,make,listen to,look at等动词等动词/短语后作宾语补语的不定式都不带短语后作宾语补语的不定式都不带to;但改成被动语态后必须带;但改成被动语态后必须带to。Be seen to do,be made to do,be heard to do,be watched to
6、 do 第7页,此课件共32页哦We should take care of the old people.The old people should be taken care of.第8页,此课件共32页哦1。动词。动词(表示主语的属性特征表示主语的属性特征)+副词副词(well/badly/easily/smoothly),用主动式表被动义。用主动式表被动义。read,write,sell,wash,clean,wear,lock,open,cook,shut,dry,eat,drink,The books _ well A.were sold B.sell C.have sold D.
7、are being soldThis kind of cloth _ easily A.has washed B.was washed C.washes D.is washedBC主动式表被动义主动式表被动义第9页,此课件共32页哦2.不定式在某些形容词后作状语不定式在某些形容词后作状语,且和句子的主语且和句子的主语(或宾语或宾语)构成动宾关系时构成动宾关系时,用主动式表被动义。用主动式表被动义。difficult,easy,hard,fit,pleasant,good,comfortable,light,heavy,safe,The fish is not fit _(eat)We find
8、 English is hard _(learn)The article is difficult _(understand).to eatto learnto understand第10页,此课件共32页哦3.不定式作后置定语不定式作后置定语,与被修饰的名词构成动宾关与被修饰的名词构成动宾关系系,又和该句主语又和该句主语(或宾语或宾语)构成主谓关系时构成主谓关系时,用主动式用主动式表被动义。表被动义。I have a lot of homework _(do)Ill give him some books _(read)to doto read第11页,此课件共32页哦表示状态特征的表示状态
9、特征的连系动词连系动词+adj./n.,用用主主动式表被动义动式表被动义。4表示状态特征的表示状态特征的连系动词连系动词+adj./n.,用用主动式表被动主动式表被动义义。(look,sound,feel,smell,taste,prove,appear,make,.)The steel feels cold5 表示表示“开始、结束、运动开始、结束、运动”的动词的动词用主动式表被动用主动式表被动义。义。(begin,open,start,stop,end,finish,shut,move,run,.)The shop opens at 6 am.every day第12页,此课件共32页哦表示
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