现在完成时的被动语态.ppt
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1、第七单元语法知识及练习题第七单元语法知识及练习题 现在完成时的被动语态现在完成时的被动语态 1.掌握现在完成时被动语态的构成掌握现在完成时被动语态的构成现在完成时被动语态的结构为现在完成时被动语态的结构为hashave been done, 使用使用has been done时主语为单数时主语为单数, 使用使用have been done时主语为复数。时主语为复数。This book has been translated into many llanguages. 这本书已被译成多国语言。这本书已被译成多国语言。His bikes have been sold out. 他的自行车已都卖完了
2、。他的自行车已都卖完了。2. 理解现在完成时被动语态的概念理解现在完成时被动语态的概念现在完成时被动语态强调一个发生在过去的被动现在完成时被动语态强调一个发生在过去的被动性动作性动作, 它有两层意思它有两层意思: 动作已经完成动作已经完成, 强调对现在造成的影响或结果。强调对现在造成的影响或结果。 主语与谓语动词之间为被动关系。主语与谓语动词之间为被动关系。Our classroom has been cleaned, you neednt clean it now. 我们的教室已被打扫过我们的教室已被打扫过, 你现在没必要再打扫了。你现在没必要再打扫了。These flowers have
3、been watered, you can go home. 这些花已被浇水了这些花已被浇水了, 你可以回家了。你可以回家了。特点特点:1. 主语是行为动作的承受者。主语是行为动作的承受者。如:如:The Great Wall has been rebuilt. 长城已经过重建。长城已经过重建。2. 说话时已经完成的动作或出现的结果。说话时已经完成的动作或出现的结果。如如: The door has been locked. 门已经被锁上了。门已经被锁上了。(我或别人现在进不去)(我或别人现在进不去)3. 动作或状态始于过去动作或状态始于过去, 持续到现在持续到现在, 并可能持续并可能持续下去
4、。下去。如:如:He has been told about it for many times. 有人有人告诉他这事很多次了。(可能还会有人告诉他)告诉他这事很多次了。(可能还会有人告诉他)4. 用在时间和条件状语从句中,表示将来某时已用在时间和条件状语从句中,表示将来某时已完成的动作。完成的动作。如:如:Well start as soon as the work has been finished. 工作一完成我们就立即动身。工作一完成我们就立即动身。3. 现在完成时被动语态的用法现在完成时被动语态的用法(1) 用于不知道动作执行者是谁时。用于不知道动作执行者是谁时。 His bikes
5、 have been stolen. 他的自行车被人偷了。他的自行车被人偷了。 (不清楚是谁偷的不清楚是谁偷的)(2)用于动作执行者是泛指或不言自明时用于动作执行者是泛指或不言自明时. Not a book in the library has been taken away. 图书馆里的书没有一本被人拿走。图书馆里的书没有一本被人拿走。(没人拿书没人拿书, 泛指泛指)(3)用于可以说出动作执行者用于可以说出动作执行者, 但动作承受者是谈但动作承受者是谈话中心或特别需要强调时。话中心或特别需要强调时。 My watch has been repaired. 我的表修好了。我的表修好了。 (表修
6、好了是谈话的主旨表修好了是谈话的主旨, 是谁修好无关紧要是谁修好无关紧要, 不不必提及必提及)(4)用于出于委婉礼貌而避免提及自己或对方用于出于委婉礼貌而避免提及自己或对方时。时。 Enough has been said here on this question. 关于这个问题关于这个问题, 这里已经谈得不少了。这里已经谈得不少了。(意思是意思是: 大家不要再说了大家不要再说了)(5)用于文章标题、广告、新闻等用于文章标题、广告、新闻等, 常用省略助动常用省略助动 词词be的被动语态。的被动语态。 Road Blocked. 道路已被堵塞。道路已被堵塞。(新闻报道新闻报道, 省略了助动词省
7、略了助动词has been。)(6)用于动作的执行者不是人时。用于动作的执行者不是人时。 The house has been washed away by the storm. 那幢房子已被暴风雨冲走了。那幢房子已被暴风雨冲走了。(7)用于商务书信中起草人是以公司名义时。用于商务书信中起草人是以公司名义时。 Your letter has been received. 来信已收到。来信已收到。4. 现在完成时被动语态的各种句型变换现在完成时被动语态的各种句型变换从现在完成时被动语态结构从现在完成时被动语态结构hashave been done可以看出可以看出hashave为助动词为助动词,
8、因此现在完成时被动因此现在完成时被动语态的各种句型变换均应借助语态的各种句型变换均应借助hashave来完成。来完成。构成否定句时直接在构成否定句时直接在hashave后面加后面加not, 构成一构成一般疑问句时将般疑问句时将hashave提前。提前。Has this bridge been finished? 这座桥竣工了吗这座桥竣工了吗?His homework hasnt been finished他的家庭作业还没有写完。他的家庭作业还没有写完。The black board has been cleaned, hasnt it? 黑板已擦过了黑板已擦过了, 是吗是吗?注意点注意点1.
9、副词的位置副词的位置often, usually, always, never, hardly, seldom等等频度频度副词置于副词置于have/has和和been中间。如:中间。如:误误 Such a man has been hardly believed.正正 Such a man has hardly been believed.2. 并不是所有动词都有被动语态并不是所有动词都有被动语态1) happen, take place, break out, belong to, cost, last等不及物动词或词组无被动语态。等不及物动词或词组无被动语态。如:如:误误 Great ch
10、anges have been taken place in China since 1978.正正 Great changes have taken place in China since 1978.2) open, break, drop等不强调动作发出者时常用等不强调动作发出者时常用主动语态。主动语态。如:如:误误 The door has been opened of itself.正正The door has opened of itself.3. 短语动词不可短语动词不可分割或省略分割或省略其中的介词或副词。其中的介词或副词。如如: The SARS patients have
11、been taken good care of.He has to look after the little baby.主主谓谓宾宾( (受动者受动者) )The little baby has to be looked afterby him.改为被动语态改为被动语态Tom will clean the room tomorrow.主主谓谓宾宾(受动者受动者)The roomwill be cleanedbyTom tomorrow.His brother washes bowls every day.主主谓谓宾宾(受动者受动者)Bowls are washedby his brother
12、 every day.1. the city officials, make, a plan, to turn Beijing into a green city A plan has been made to turn Beijing into a green city by the city officials. Rewrite the following sentences using the Present Perfect Passive Voice. 2. millions of people from all over the world, visit, the Great Wal
13、l The Great Wall has been visited by millions of people from all over the world. 3. China, send up, another space capsule Another space capsule has been sent up by China. 4. tourists, damage, some cultural sites Some cultural sites have been damaged by tourists. 5. the villagers, set up, a website,
14、to help people learn more about the cultural relics A website has been set up by the villagers to help people learn more about the cultural relics. 6. the Russian government, turned into museums, these palaces These palaces have been turned into museums by the Russian government.1. People use knives
15、 for cutting things. Knives _ _ for cutting things.2. The students clean the windows of their classroom twice a month. The windows of their classroom_ _ twice a month. are usedarecleanedEXERCISES3. I found the ticket on the floor. _ _ _ _ on the floor.4. I told her to return the book in time. She _
16、_ to return the book in time.5. His doctor made him have only two meals a day. He _ _ _ _ only two meals a day.The ticket was found was told was made to have6. Now people can use computers to help them. Now computers _ _ _ to help them.7. Did you plant many trees at this time last year? _ _ _ _ at t
17、his time last time?8. Must we finish our work today? _ our work _ _ today? can be usedWere many trees plantedMustbe finished9. The foreign friends gave us some wonderful stamps. 1) _ _ _ some wonderful stamps. 2) Some wonderful stamps _ _ _ _.10. The teacher asked Tom to turn on the computer. Tom _
18、_ to turn on the computer. We were given were given to us was asked11. In this factory women do most of the work. Most of the work _ _ by women in this factory.12. He can mend the bike in two days. The bike _ _ _ in two days. is done can be mended13. You must take this medicine three times a day. Th
19、is medicine _ _ _ three times a day.14. The students in this school study German. German _ _ by the students in this school. must be taken is studied15. Do they often talk about this question? _ this question often _ about _ _ ?Is talked by them单项选择:单项选择:1. My pencil _ the day before yesterday. A. f
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