-现在完成时的被动语态.ppt

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1、Revision:will + be + done构成形式构成形式:一般将来时的被动语态一般将来时的被动语态否定句否定句: 一般疑问句一般疑问句:will not + be + doneWill + 主语主语+ be + done1.Beijing will host the Winter Olympics in 2022.2.We will hold a sports meeting on Saturday.3.The headmaster will give the winners medals.(1)The winners(2) MedalsExercise:A sports meeti

2、ng will be held (by us) on Saturday.The Winter Olympics will be hosted (by Beijing) in 2022. will be given medals (by the headmaster). will be given (by the headmaster) to the winners. Group A1. We have finished our homework.2. Many visitors have visited the Great Wall.3. Mike has seen two films sin

3、ce last month.Group B1. Our homework has been finished by us.2. The Great Wall has been visited by many visitors.3.Two films have been seen by Mike since last month.A组组强调动作的执行者强调动作的执行者,是是主动语态主动语态B组组的句子强调动作的承受者的句子强调动作的承受者, 是是被动语态被动语态现在完成时的被动语态现在完成时的被动语态have/ has been done1.The new road near our schoo

4、l has already been completed. 2.Many new buildings have been built in the past ten years.表示到现在为止表示到现在为止已经完成已经完成的某个的某个被动的动作被动的动作recently, already, yet, since then, since+时间点，时间点，for+时间段，时间段，so far, by now, in the past+时间段时间段等常用于等常用于现在完成时态的句子中。现在完成时态的句子中。 Change the sentences into the present perfect

5、passive voice动作的执行者动作的执行者动作的承受者动作的承受者谓语动词谓语动词by workersChange the sentences into the present perfect passive voice1.肯定句肯定句: have/has been doneThe problem has been solved by us.2.否定句否定句:The problem has not been solved by us.3.一般疑问句一般疑问句: Has the problem been solved by us?4.特殊疑问句特殊疑问句: （这个问题是怎样解决的？）（这

6、个问题是怎样解决的？）How has the problem been solved?have/has not been donehave/has +主语主语+been done疑问词疑问词+have/has +主语主语+been doneThe present perfect passive voice(肯定句、否肯定句、否定句和疑问句）定句和疑问句）: 主动语态：主动语态：We have solved the problem.Exercise 1:1.The four pens _(not take away) by him.2. Where _ the bike_(repair)？3._

7、the novel _(translate) into many foreign languages?4. He _ (already, buy) a computer by his mother.have not been taken awayhasbeen repairedHas been translated has already been bought 注意注意:1）非延续性动词非延续性动词borrow ,finish, begin, start, marry, open, join等构成的现在完成等构成的现在完成时的被动语态不能与表示一段的时间状语连时的被动语态不能与表示一段的时间

8、状语连用。用。例如：例如： 1.This project has been started for three months. 2.This project has been on for three months. 注意注意:2）不及物动词不及物动词 happen, take place, break out, belong to, cost, last 等不用于被动语态。等不用于被动语态。例如：例如：1.Great changes have taken place in my hometown in the past ten years. 2.Something bad has been

9、happened to him. 注意注意:3）许多不及物动词加介词或副词构成的短语许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有被动语动词，相当于及物动词，也可以有被动语态。但短语动词是一个不可分割的整体态。但短语动词是一个不可分割的整体,变变为被动语态时，为被动语态时，不可丢掉构成短语的介词不可丢掉构成短语的介词或副词或副词。 例如例如:1.The child has been taken good care of by Grandma Wang all these years.2.A notice has been put up on the wall.注意注意:4)

10、 带有复合宾语的动词变为被动语态时，若宾带有复合宾语的动词变为被动语态时，若宾语补足语为省略语补足语为省略to的不定式充当时，在被动语的不定式充当时，在被动语态中需将省掉的态中需将省掉的to加上。加上。例如：例如：The boss has made his company offer more chances for people to work. His companyhas been made tooffer more chances for people to work (by the boss).Exercise 2 :句子句子改错改错1. A personal computer ha

11、s bought by us. 2. Many problems has been found with our new computer.3.Great changes have been taken place in my hometown in the past ten years.beenhave句子改错句子改错4.We have been made work hard. 5.He has been taken good care by his grandma since he was young.6.How long has this dictionary been borrowed

12、?toofkeptAbout the change in my hometown: 1. Great changes _ (take place) in my hometown in the past ten years.2. A power station _ (set up) since ten years ago.3. Many factories _ (build) so far.4. The rivers _ (pollute) seriously since then.Exercise 3 : Complete the sentences.have taken placehas b

13、een set uphave been builthave been polluted构成：构成： 主动语态主动语态 被动语态被动语态现在完成时现在完成时 have/has doneThe Present Perfect Passive Voice （现在完成时的被动语态）现在完成时的被动语态）have/has been doneSummary:否定式否定式:一般疑问句一般疑问句: 特殊疑问句特殊疑问句: have/has not been donehave/has +主语主语+been done疑问词疑问词+have/has +主语主语+been doneChange the followi

14、ng sentences into the present perfect passive voice. Put the verbs into the correct form.(P21)1.We have bought a new personal computer.2.We have found many problems with our new computer.A new personal computer has been bought by us.Many problems have been found with our new computer by us.Thank you ! Goodbye!