人教新课标必修2 Unit 3 Computers Using Language 1 课件（24张PPT）
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| 名称 | 人教新课标必修2 Unit 3 Computers Using Language 1 课件（24张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 3.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2020-02-11 17:39:03 | ||
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课件24张PPT。The Present Perfect Passive Voice
现在完成时的被动语态Grammar了解被动语态被动语态构成：be + done2、形式:
1） 一般现在时： am/is/are+done1.英语中有两种语态，主动语态和被动语态2) 一般过去时： was/were+done3) 情态动词: 情态动词+be+done4) 一般将来时： will +be +done Step 1 Revision This song_____often_______ (sing) by children.
These books___ often__________(borrow)
by girls.
The sports meeting ________(hold) in our city last year.
This work____ easily ________(can/ do).
Many buildings ___________(build) in my hometown in the future.
is sungare borrowedwill be builtwas heldcan be doneHow many Harry Porter books has J.K.Rowling written?She has written seven Harry Porter books .Seven Harry Porter books have been written by J.K.Rowling. The Present Perfect Passive Voice
（现在完成时的被动语态）
现在完成时的被动语态表示动作发生在过去，到现在已经完成 ，但对现在仍有影响。
Structure：
（构成）
现在完成时
主动语态 have/has done
被动语态 have/has been done
The Present Perfect Passive VoiceSentence structure:
subject + have/has +been+ doneIn what cases do we use the passive voice?
1.不知道或没有必要说明的动作的执行者是谁。
2.强调动作的承受者，而不是发出者。 Change the sentences into the present perfect passive voice1.Workers have built the house since two years ago.The house has been built by workers since two years ago.
2. We have received many letters since last week.Many letters have been received since last week.
The buildings,
destroy,
in the earthquake The buildings have been destroyed in the earthquake. Making sentences using present perfect passive voice:
A new bridge,
build ,
in our city A new bridge has been built in our city 1.Lots of beautiful flowers and trees __________________(plant) have been planted.
Exercise 3 Fill in the blanks using present perfect passive voice:2.Many flowers______________(put on)the bike.have been put on3.The apple_____________ (eat) by Sunny.has been eatenCandy 1.脏衣服都已经洗了。
The dirty clothes have been washed.
2. 这家公司已经被他掌管3年了
This company has been taken charge of
by him.
Translation1. 副词的位置
often, usually, always, never, hardly, seldom等副词置于have/has和been中间。
如: [误] Such a man has been hardly
believed.
[正] Such a man has hardly been
believed.2. 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。如：
[误] Great changes have been taken
place in China since 1978.
[正] Great changes have taken place in
China since 1978.2. 短语动词不可分割或省略其中的介词
或副词。如：
[误] The patients have been taken good care .
[正] The patients have been taken good care of
3. 一些特殊动词, 如borrow, finish, begin,
buy, start, return, marry, open, join等
构成的现在完成时的被动语态不能与
表示一段时间的状语连用。若要表达
相应的意思，则需改换动词或时态。Look at the sentences there is one mistake in each sentence ,pick it out and correct it.
1.Such a man has been hardly believed.
Such a man has hardly been believed.
2.The computer was used every day since we bought it .
The computer has been used every day since we bought it.
3.Great changes have been taken place in China since 1978.
Great changes have taken place in China since 1978.
4.The patients have been taken good care.
The patients have been taken good care of.
5. A personal computer has been bought for five years.
A personal computer has been had for five years.副词置于have/has和been中间。? 完成或持续 不及物动词或词组无被动语态
短语动词不可分割或省略其中的介词或副词 瞬间动词的转变??? Conclusion
1.副词的位置
often, usually, always, never, hardly, seldom等
副词置于have/has和been中间。?
2. 被动语态的动词?并不是所有动词都有被动语态;happen, take place, break out ，belong to ,cost , last等不及物动词或词组无被动语态。
4.介词的保留
短语动词不可分割或省略其中的介词或副词：take care of ,laugh at ,put up .
5.瞬间动词的转变
buy (have) ,borrow (keep)
用被动语态改写下列句子。
My friend has bought a new personal computer.A new computer has been bought by my friend. Practice2. The shop has repaired my computer very quickly.My computer has been repaired very quickly by the shop us.3. An unknown virus has just attacked my computer.My computer has just been attacked by an unknown virus.4. We haven't solved the problem yet. The problem hasn't been solved yet .5.The company has given its computers away to a local school.The computers have been given away to a local school by the company.6.The scientists have developed a kind of intelligent robot.A kind of intelligent robot has been developed by the scientists
现在完成时的被动语态Grammar了解被动语态被动语态构成：be + done2、形式:
1） 一般现在时： am/is/are+done1.英语中有两种语态，主动语态和被动语态2) 一般过去时： was/were+done3) 情态动词: 情态动词+be+done4) 一般将来时： will +be +done Step 1 Revision This song_____often_______ (sing) by children.
These books___ often__________(borrow)
by girls.
The sports meeting ________(hold) in our city last year.
This work____ easily ________(can/ do).
Many buildings ___________(build) in my hometown in the future.
is sungare borrowedwill be builtwas heldcan be doneHow many Harry Porter books has J.K.Rowling written?She has written seven Harry Porter books .Seven Harry Porter books have been written by J.K.Rowling. The Present Perfect Passive Voice
（现在完成时的被动语态）
现在完成时的被动语态表示动作发生在过去，到现在已经完成 ，但对现在仍有影响。
Structure：
（构成）
现在完成时
主动语态 have/has done
被动语态 have/has been done
The Present Perfect Passive VoiceSentence structure:
subject + have/has +been+ doneIn what cases do we use the passive voice?
1.不知道或没有必要说明的动作的执行者是谁。
2.强调动作的承受者，而不是发出者。 Change the sentences into the present perfect passive voice1.Workers have built the house since two years ago.The house has been built by workers since two years ago.
2. We have received many letters since last week.Many letters have been received since last week.
The buildings,
destroy,
in the earthquake The buildings have been destroyed in the earthquake. Making sentences using present perfect passive voice:
A new bridge,
build ,
in our city A new bridge has been built in our city 1.Lots of beautiful flowers and trees __________________(plant) have been planted.
Exercise 3 Fill in the blanks using present perfect passive voice:2.Many flowers______________(put on)the bike.have been put on3.The apple_____________ (eat) by Sunny.has been eatenCandy 1.脏衣服都已经洗了。
The dirty clothes have been washed.
2. 这家公司已经被他掌管3年了
This company has been taken charge of
by him.
Translation1. 副词的位置
often, usually, always, never, hardly, seldom等副词置于have/has和been中间。
如: [误] Such a man has been hardly
believed.
[正] Such a man has hardly been
believed.2. 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。如：
[误] Great changes have been taken
place in China since 1978.
[正] Great changes have taken place in
China since 1978.2. 短语动词不可分割或省略其中的介词
或副词。如：
[误] The patients have been taken good care .
[正] The patients have been taken good care of
3. 一些特殊动词, 如borrow, finish, begin,
buy, start, return, marry, open, join等
构成的现在完成时的被动语态不能与
表示一段时间的状语连用。若要表达
相应的意思，则需改换动词或时态。Look at the sentences there is one mistake in each sentence ,pick it out and correct it.
1.Such a man has been hardly believed.
Such a man has hardly been believed.
2.The computer was used every day since we bought it .
The computer has been used every day since we bought it.
3.Great changes have been taken place in China since 1978.
Great changes have taken place in China since 1978.
4.The patients have been taken good care.
The patients have been taken good care of.
5. A personal computer has been bought for five years.
A personal computer has been had for five years.副词置于have/has和been中间。? 完成或持续 不及物动词或词组无被动语态
短语动词不可分割或省略其中的介词或副词 瞬间动词的转变??? Conclusion
1.副词的位置
often, usually, always, never, hardly, seldom等
副词置于have/has和been中间。?
2. 被动语态的动词?并不是所有动词都有被动语态;happen, take place, break out ，belong to ,cost , last等不及物动词或词组无被动语态。
4.介词的保留
短语动词不可分割或省略其中的介词或副词：take care of ,laugh at ,put up .
5.瞬间动词的转变
buy (have) ,borrow (keep)
用被动语态改写下列句子。
My friend has bought a new personal computer.A new computer has been bought by my friend. Practice2. The shop has repaired my computer very quickly.My computer has been repaired very quickly by the shop us.3. An unknown virus has just attacked my computer.My computer has just been attacked by an unknown virus.4. We haven't solved the problem yet. The problem hasn't been solved yet .5.The company has given its computers away to a local school.The computers have been given away to a local school by the company.6.The scientists have developed a kind of intelligent robot.A kind of intelligent robot has been developed by the scientists