人教版（2019）必修第二册Unit 3 The internet Discovering Useful Structures课件(共28张PPT)
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| 名称 | 人教版（2019）必修第二册Unit 3 The internet Discovering Useful Structures课件(共28张PPT) |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-03-22 10:39:11 | ||
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(共28张PPT)
Unit 3 The Internet
Discovering Useful Structures
present(now)
future
past
过去的动作一直持续到现在
过去的动作对现在产生影响
The Present Perfect Tense
1. Much has been written about the wonders of the World Wide Web.
2. People’s lives have been changed by online communities and social networks.
3. Many people have been helped by the club.
4. Jan’s life has been greatly improved by the Internet.
1. People have written much about the wonders of the World Wide Web.
2. Online communities and social networks have changed people’s lives.
3. The club has helped many people.
4. The Internet has greatly improved Jan’s life.
Which group is better Why
Compare and Find
Present perfect passive voice
Change the sentences below into the present perfect passive voice.
1. I have downloaded the software to help my phone battery last longer.
The software has been downloaded to help my phone battery last longer.
2. Someone has lost an identity card.
An identity card has been lost.
3. Have you confirmed the Wi-Fi password
Has the Wi-Fi password been confirmed
4. Have you pressed the button yet to copy the file
Has the button been pressed yet to copy the file
5. Has anyone made a comment about the online database
Has a / any comment been made about the online database
Present perfect passive voice
The students have cleaned the classroom.
The classroom has been cleaned. You needn’t clean it now.
现在完成时
active
passive
表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。
现在完成时的被动语态
现在完成时
被动语态
have/has been done
现在完成时的被动语态
be done
have/has been
How do we form the present perfect passive voice
现在完成时的被动语态
1. Much has been written about the wonders of the World Wide Web.
2. People’s lives have been changed by online communities and social
networks.
3. Many people have been helped by the club.
4. Jan’s life has been greatly improved by the Internet.
5. The software has been downloaded to help my phone battery last longer.
6. Has the Wi-Fi password been confirmed
7. Has the button been pressed yet to copy the file
8. An identity card has been lost.
思考：现在完成时的被动语态有什么意义？
Present perfect passive voice
主语和谓语是被动的关系：
表示动作从过去一直持续到现在，有可能还会继续进行
动作已经完成，强调对现在造成的影响或结果
一 般 进 行 完 成
现在
过去
将来
am/is/are done
am/is/are being done
have/has been done
was/were done
was/were being done
had been done
will be done
will have been done
过去将来 含情态动词
would be done
情态动词+be+done
will be being done
BY YUSHEN
How do we form the present perfect passive voice Fill in the blank.
have/has been + v -ed
主动语态变被动语态的原则
“三变”
原句主语 by的宾语
宾语 主语
谓语由主动 被动
“三不变”
原句意思不变
原句时态不变
原句主谓宾以外成分不变
Talk about something that has been done
例句 现在完成时被动语态句式
The research has been done successfully.
The author’s new story has not been published.
Has his washing machine been repaired
Who has been invited
肯定式：have / has been done
否定式：have / has not been done
一般疑问句：把have / has提到主语的前面
特殊疑问句：
特殊疑问词 + have / has been done
Present perfect passive voice
肯定形式：
His homework has been finished.
否定形式：
His homework has not been finished.
一般疑问句:
Has his homework been finished yet
特殊疑问句：
How long has his homework been finished
主语+have/has been done...
主语+have/has not been done...
have/has+主语+been done...
疑问词+have/has+主语+been done...
结构形式
现在完成时的被动语态
用法
1. 现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，通常与already, yet, just, never, recently等副词连用。例：The machine has already been repaired.
2. 表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long... ”句型中。
例：Financial problems of the company have been discussed for nearly two hours.
How long has this film been shown
3. 用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。
例：You shouldn’t leave school before your homework has been finished.
现在完成时的被动语态
一、现在完成时的被动语态的常用句式
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...？
特殊疑问式 疑问词＋have/has＋主语＋been done...？
A new network has been set up.
一个新的网络已经建立起来了。
To Tom’s disappointment，his novel has not been published.
让汤姆失望的是，他的小说还没有被出版。
一、现在完成时的被动语态的常用句式
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...？
特殊疑问式 疑问词＋have/has＋主语＋been done...？
Has his bike been repaired
他的自行车修好了吗？
How many residents have been invited to the conference？
有多少居民受到了参会邀请？
注意
1. 现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别
The machine has been repaired.（说明动作发生在过去，对现在有影响，“现在修好了”）
The machine is being repaired now.（说明动作正在进行）
The machine was repaired yesterday.（只说明动作发生在过去）
2. 非延续性动词，如borrow, finish, begin, start, buy, 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，则要改换动词或时态。
例：工程已开始三个月了。
The project has been started for three months.（F）
The project has been on for three months.（T）
现在完成时的被动语态
提示
常与现在完成时连用的时间状语有：
already 已经 yet 已经
recently/lately 最近 since then 从那时起
ever since 自那以来 ever 曾经
so far 迄今为止 by now 到现在为止
for a long time 很长一段时间
in recent years 在最近几年里
in/during/over the past/last years 在过去的几年里
现在完成时的被动语态
1. The building has set up for several years.
2. The windows have been broke.
3. A terrible thing has been happened to her.
4. Jim has caught by the police.
been
broken
been
Present perfect passive voice
改错：
即学即练
1. 现在完成时的被动语态中been 一定不能忘记。
2. 注意break, catch, teach等动词的过去式和过去分词
的不规则变化形式。
3. 不及物动词（短语动词）没有被动语态，如：happen, take place, die, appear, break out, belong to等。
Present perfect passive voice
总结
总 结
1. 现在完成时的被动语态强调一个发生在过去的被动性的动作，动作已完成并强调对现在造成的影响或结果，主语和谓语之间为被动关系。
例：
The door has already been locked.
门早已经被锁上了。
I have been employed at the job since 2015.
自从2015年，我就做这份工作。
现在完成时的被动语态
BY YUSHEN
现在完成时的被动语态的用法
The letter (post) already.
Many houses (build) for the poor so far.
has been posted
have been built
用法1:强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，
通常与already, yet, just, never, recently等副词连用
Activity 1
总 结
2．基本构成：has/have been done。
其他句式：
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...
特殊疑问式 特殊疑问词＋have/has＋主语＋been done...
现在完成时的被动语态
BY YUSHEN
The machine (repair) for two hours but it still doesn’t work.
Paper money (use) for over 50 years.
用法2:表示一个被动的动作或状态开始于过去，持续到现在，并可能持
续下去，常与for或since引导的时间状语连用，或用于“How long... ”
句型中。
has been repaired
has been used
总 结
现在完成时的主动语态变被动语态
只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。
例：Tom has sold out all the magazines. → All the magazines have been sold out by Tom.
带有双宾语的动词，如give, send, bring, take, teach, show, tell, make, sing, write, read, sell, buy, pay, lend, pass, promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。
We have given him the book.
→ He has been given the book.
→ The book has been given to him.
现在完成时的被动语态
BY YUSHEN
You shouldn’t leave school before your homework ________________(finish).
Everyone will feel extremely delighted if he___________________(admit) to South
China Normal University.
has been admitted
has been finished
用法3:用在时间或条件状语从句中，表示将来某时已完成的动作，即用
现在完成时的被动语态代替将来完成时的被动语态。
总 结
带有复合宾语的动词变为被动语态时，只能将宾语变为主语，原来的宾语补足语变为主语补足语。
例：After decorating the Amber Room with jewels, the artists have made it more splendid.
→ After being decorated with jewels, the Amber Room has been made more splendid.
注意：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to的不定式充当时，在被动语态中需将省掉的to加上。
例：The boss has made his company offer more chances for people to work.
→ His company has been made to offer more chances for people to work.
动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中的介词或副词不可省略。
例：It’s said that the problem has been looked into.
现在完成时的被动语态
综合练习
一、单句语法填空
1.The government was pressed (take) some measures at once.
2.It is said that the long table used to function a bed for the man.
3.You’d better write an email (confirm) the news.
4.A new film (talk) about by those girls now.
5.The people were ordered (leave) the building at once.
6.A new picture will be drawn her on her birthday.
to take
as
to confirm
is being talked
to leave
for
二、完成句子
1.这家公司至今都没有给他一份工作。
He by this company yet.
2.他们现在并没有在考虑我的建议。
My advice by them now.
3.这个男孩经常被告诉不要到那个湖里游泳。
The boy in that lake.
4.到目前为止,已经建立了委员会来处理这件事情。
So far,a committee _________________________ to deal with it.
5.你需要的信息已经从网上下载了。
The information you need ____________________ from the Internet.
hasn’t been offered a job
isn’t being considered
is often told not to swim
has been set up
has been downloaded
Thank you!
Unit 3 The Internet
Discovering Useful Structures
present(now)
future
past
过去的动作一直持续到现在
过去的动作对现在产生影响
The Present Perfect Tense
1. Much has been written about the wonders of the World Wide Web.
2. People’s lives have been changed by online communities and social networks.
3. Many people have been helped by the club.
4. Jan’s life has been greatly improved by the Internet.
1. People have written much about the wonders of the World Wide Web.
2. Online communities and social networks have changed people’s lives.
3. The club has helped many people.
4. The Internet has greatly improved Jan’s life.
Which group is better Why
Compare and Find
Present perfect passive voice
Change the sentences below into the present perfect passive voice.
1. I have downloaded the software to help my phone battery last longer.
The software has been downloaded to help my phone battery last longer.
2. Someone has lost an identity card.
An identity card has been lost.
3. Have you confirmed the Wi-Fi password
Has the Wi-Fi password been confirmed
4. Have you pressed the button yet to copy the file
Has the button been pressed yet to copy the file
5. Has anyone made a comment about the online database
Has a / any comment been made about the online database
Present perfect passive voice
The students have cleaned the classroom.
The classroom has been cleaned. You needn’t clean it now.
现在完成时
active
passive
表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。
现在完成时的被动语态
现在完成时
被动语态
have/has been done
现在完成时的被动语态
be done
have/has been
How do we form the present perfect passive voice
现在完成时的被动语态
1. Much has been written about the wonders of the World Wide Web.
2. People’s lives have been changed by online communities and social
networks.
3. Many people have been helped by the club.
4. Jan’s life has been greatly improved by the Internet.
5. The software has been downloaded to help my phone battery last longer.
6. Has the Wi-Fi password been confirmed
7. Has the button been pressed yet to copy the file
8. An identity card has been lost.
思考：现在完成时的被动语态有什么意义？
Present perfect passive voice
主语和谓语是被动的关系：
表示动作从过去一直持续到现在，有可能还会继续进行
动作已经完成，强调对现在造成的影响或结果
一 般 进 行 完 成
现在
过去
将来
am/is/are done
am/is/are being done
have/has been done
was/were done
was/were being done
had been done
will be done
will have been done
过去将来 含情态动词
would be done
情态动词+be+done
will be being done
BY YUSHEN
How do we form the present perfect passive voice Fill in the blank.
have/has been + v -ed
主动语态变被动语态的原则
“三变”
原句主语 by的宾语
宾语 主语
谓语由主动 被动
“三不变”
原句意思不变
原句时态不变
原句主谓宾以外成分不变
Talk about something that has been done
例句 现在完成时被动语态句式
The research has been done successfully.
The author’s new story has not been published.
Has his washing machine been repaired
Who has been invited
肯定式：have / has been done
否定式：have / has not been done
一般疑问句：把have / has提到主语的前面
特殊疑问句：
特殊疑问词 + have / has been done
Present perfect passive voice
肯定形式：
His homework has been finished.
否定形式：
His homework has not been finished.
一般疑问句:
Has his homework been finished yet
特殊疑问句：
How long has his homework been finished
主语+have/has been done...
主语+have/has not been done...
have/has+主语+been done...
疑问词+have/has+主语+been done...
结构形式
现在完成时的被动语态
用法
1. 现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，通常与already, yet, just, never, recently等副词连用。例：The machine has already been repaired.
2. 表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long... ”句型中。
例：Financial problems of the company have been discussed for nearly two hours.
How long has this film been shown
3. 用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。
例：You shouldn’t leave school before your homework has been finished.
现在完成时的被动语态
一、现在完成时的被动语态的常用句式
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...？
特殊疑问式 疑问词＋have/has＋主语＋been done...？
A new network has been set up.
一个新的网络已经建立起来了。
To Tom’s disappointment，his novel has not been published.
让汤姆失望的是，他的小说还没有被出版。
一、现在完成时的被动语态的常用句式
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...？
特殊疑问式 疑问词＋have/has＋主语＋been done...？
Has his bike been repaired
他的自行车修好了吗？
How many residents have been invited to the conference？
有多少居民受到了参会邀请？
注意
1. 现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别
The machine has been repaired.（说明动作发生在过去，对现在有影响，“现在修好了”）
The machine is being repaired now.（说明动作正在进行）
The machine was repaired yesterday.（只说明动作发生在过去）
2. 非延续性动词，如borrow, finish, begin, start, buy, 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，则要改换动词或时态。
例：工程已开始三个月了。
The project has been started for three months.（F）
The project has been on for three months.（T）
现在完成时的被动语态
提示
常与现在完成时连用的时间状语有：
already 已经 yet 已经
recently/lately 最近 since then 从那时起
ever since 自那以来 ever 曾经
so far 迄今为止 by now 到现在为止
for a long time 很长一段时间
in recent years 在最近几年里
in/during/over the past/last years 在过去的几年里
现在完成时的被动语态
1. The building has set up for several years.
2. The windows have been broke.
3. A terrible thing has been happened to her.
4. Jim has caught by the police.
been
broken
been
Present perfect passive voice
改错：
即学即练
1. 现在完成时的被动语态中been 一定不能忘记。
2. 注意break, catch, teach等动词的过去式和过去分词
的不规则变化形式。
3. 不及物动词（短语动词）没有被动语态，如：happen, take place, die, appear, break out, belong to等。
Present perfect passive voice
总结
总 结
1. 现在完成时的被动语态强调一个发生在过去的被动性的动作，动作已完成并强调对现在造成的影响或结果，主语和谓语之间为被动关系。
例：
The door has already been locked.
门早已经被锁上了。
I have been employed at the job since 2015.
自从2015年，我就做这份工作。
现在完成时的被动语态
BY YUSHEN
现在完成时的被动语态的用法
The letter (post) already.
Many houses (build) for the poor so far.
has been posted
have been built
用法1:强调过去的动作对现在造成的影响或结果，主语和谓语之间为被动关系，
通常与already, yet, just, never, recently等副词连用
Activity 1
总 结
2．基本构成：has/have been done。
其他句式：
肯定式 主语＋have/has been done...
否定式 主语＋have/has not been done...
一般疑问式 Have/Has＋主语＋been done...
特殊疑问式 特殊疑问词＋have/has＋主语＋been done...
现在完成时的被动语态
BY YUSHEN
The machine (repair) for two hours but it still doesn’t work.
Paper money (use) for over 50 years.
用法2:表示一个被动的动作或状态开始于过去，持续到现在，并可能持
续下去，常与for或since引导的时间状语连用，或用于“How long... ”
句型中。
has been repaired
has been used
总 结
现在完成时的主动语态变被动语态
只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。
例：Tom has sold out all the magazines. → All the magazines have been sold out by Tom.
带有双宾语的动词，如give, send, bring, take, teach, show, tell, make, sing, write, read, sell, buy, pay, lend, pass, promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。
We have given him the book.
→ He has been given the book.
→ The book has been given to him.
现在完成时的被动语态
BY YUSHEN
You shouldn’t leave school before your homework ________________(finish).
Everyone will feel extremely delighted if he___________________(admit) to South
China Normal University.
has been admitted
has been finished
用法3:用在时间或条件状语从句中，表示将来某时已完成的动作，即用
现在完成时的被动语态代替将来完成时的被动语态。
总 结
带有复合宾语的动词变为被动语态时，只能将宾语变为主语，原来的宾语补足语变为主语补足语。
例：After decorating the Amber Room with jewels, the artists have made it more splendid.
→ After being decorated with jewels, the Amber Room has been made more splendid.
注意：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to的不定式充当时，在被动语态中需将省掉的to加上。
例：The boss has made his company offer more chances for people to work.
→ His company has been made to offer more chances for people to work.
动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中的介词或副词不可省略。
例：It’s said that the problem has been looked into.
现在完成时的被动语态
综合练习
一、单句语法填空
1.The government was pressed (take) some measures at once.
2.It is said that the long table used to function a bed for the man.
3.You’d better write an email (confirm) the news.
4.A new film (talk) about by those girls now.
5.The people were ordered (leave) the building at once.
6.A new picture will be drawn her on her birthday.
to take
as
to confirm
is being talked
to leave
for
二、完成句子
1.这家公司至今都没有给他一份工作。
He by this company yet.
2.他们现在并没有在考虑我的建议。
My advice by them now.
3.这个男孩经常被告诉不要到那个湖里游泳。
The boy in that lake.
4.到目前为止,已经建立了委员会来处理这件事情。
So far,a committee _________________________ to deal with it.
5.你需要的信息已经从网上下载了。
The information you need ____________________ from the Internet.
hasn’t been offered a job
isn’t being considered
is often told not to swim
has been set up
has been downloaded
Thank you!