Unit3 The Internet Discovering useful structures课件+音视频-新人教版必修二
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| 名称 | Unit3 The Internet Discovering useful structures课件+音视频-新人教版必修二 |  | |
| 格式 | zip | ||
| 文件大小 | 87.2MB | ||
| 资源类型 | 试卷 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-12-10 16:39:15 | ||
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(共27张PPT)
Unit The Internet
Period 3 Discovering useful structures
（人教版2019）必修二 第 册
二
01
Learning objectives
Content
02
Preparation
03
Practice
05
06
Presentation
07
Production
04
Summary
08
Homework
Assessment
Learning objectives
1. To analyze the form and feature of the present perfect passive voice;
2. To find out the differences in meaning and function between the active and passive forms;
3. To master the function of the present perfect passive voice in the context and use it in real situations.
1. Jan’s life has been greatly improved by the Internet.
The Internet has greatly improved Jan’s life.
2. Much has been written about the wonders of the World Wide Web.
People have written much about the wonders of the World Wide Web.
Underline and observe the different verb forms.
Preparation
Active __________________
Passive _________________
The form of the present perfect passive voice
Verb form
have/has +v-ed
have/has been +v-ed
Preparation
Read and observe more sentences.
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.
have/has been done
The present perfect passive voice.（现在完成时的被动语态）
Preparation
Present perfect passive voice：
现在完成时的被动语态
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
Presentation
Present perfect passive voice：
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
Presentation
Present perfect passive voice：
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）
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 gone on for three months.（T）
Presentation
Present perfect passive voice：
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
Presentation
1.找时：找与现在完成相对应的时间状语；
2.圈主：主语与动词构成被动关系；
3.定谓：确定谓动形式：have/ has (not) been done。
现在完成时被动语态的解题步骤
Presentation
1. - The window is dirty.
- I know. It __________________ (not clean) for weeks.
2. Paper money _____________ (use) for over nine hundred years.
3. It is the first time that Henry ______________ (ask) why he likes working in a library.
4. John _________ (love) singing, dancing and acting since he was a young boy.
5. So far, a new advance _______________ (make) in the control of the disease.
一、用所给动词的适当形式填空。
hasn’t been cleaned
has been used
has been asked
has loved
has been made
Practice
6. Up to now, more than 2,000 trees _________________ (plant) by the team in this dry area.
7. Shakespeare’s play Hamlet ______________ (make) into at least ten different films over the past years.
8. In the last few years thousands of films ____________________ (produce) all over the world.
9. Many buildings ______________ (build) since 1980.
have been planted
has been made
have been produced
have been built
Practice
The letter (post)
already.
has been posted
Practice
Observe the following pictures and try to fill in the blanks.
Many houses (build) for the poor so far.
have been built
Practice
Observe the following pictures and try to fill in the blanks.
The machine
(repair) for two hours but it still doesn’t work.
has been repaired
Practice
Observe the following pictures and try to fill in the blanks.
Paper money (use) for over 50 years.
has been used
Practice
Observe the following pictures and try to fill in the blanks.
You shouldn’t leave school before your homework_______________(finish).
has been finished
Practice
Observe the following pictures and try to fill in the blanks.
Everyone will feel extremely delighted if he________________(admit) to Sun Yat-sen University.
has been admitted
Practice
Observe the following pictures and try to fill in the blanks.
1. I have downloaded the software to help my phone battery last longer.
2. Someone has lost an identity card.
3. Have you confirmed the Wi-Fi password
4. Have you pressed the button yet to copy the file
5. Has anyone made a comment about the online database
The software has been downloaded to help my phone battery last longer.
An identity card has been lost.
Has the Wi-Fi password been confirmed
Has the button been pressed yet to copy the file
Has a/any comment been made about the online database
Practice
三、把下面句子改成被动语态。
What we should do to reduce the negative impact of the Internet
Health problems
PROBLEMS
SOLUTIONS
Fake news
Personal information
Cyberbully
Damage to social relationship
......
eg.
Personal information has been hidden so that we can protect our privacy.
Production
Let’s play.
击鼓传花
一人拿花，音乐响起传花,音乐停止，花在谁手中谁就上来说出solution，如：Personal information has been hidden so that we can protect our privacy.
1.
Fake news
2.
Health problems
3.
Damage to social relationship
4. Cyberbully
Production
5.
Personal information
现在完成时的被动语态
含义
结构
表示过去发生的被动动作现在已经完
成或仍将持续, 强调对现在的影响
have/has been done
形式
肯定式
否定式
疑问式
have/has been done
have/has not been done
Have/Has+主语+been done
特殊疑问词+have/has+主语+been done
用法
表示已经完成的被动动作
表示过去开始的被动动作一直持续到现在
表示某被动动作对现在造成的影响或结果
注意事项
动词短语不可分割也不可省略其中的介词和副词
不及物动词或词组无被动
Summary
Assessment
Items Great (5 pt.) Not bad (3 pt.) Try harder
(2 pt.)
I can understand and master the grammar .
I can use the grammar correctly.
I am able to use the grammar to describe pictures .
I am able to use the grammar to make sentences.
Points(pt.) _______________in total. Homework
提升作业
Draw a mind map of the grammar.
基础作业
Review grammar and finish grammar exercise in your exercise book.
拓展作业
Use the grammar to make describe things you like with your partner.
https://www.21cnjy.com/help/help_extract.php
让备课更有效
www.21cnjy.com
Thanks!
Unit The Internet
Period 3 Discovering useful structures
（人教版2019）必修二 第 册
二
01
Learning objectives
Content
02
Preparation
03
Practice
05
06
Presentation
07
Production
04
Summary
08
Homework
Assessment
Learning objectives
1. To analyze the form and feature of the present perfect passive voice;
2. To find out the differences in meaning and function between the active and passive forms;
3. To master the function of the present perfect passive voice in the context and use it in real situations.
1. Jan’s life has been greatly improved by the Internet.
The Internet has greatly improved Jan’s life.
2. Much has been written about the wonders of the World Wide Web.
People have written much about the wonders of the World Wide Web.
Underline and observe the different verb forms.
Preparation
Active __________________
Passive _________________
The form of the present perfect passive voice
Verb form
have/has +v-ed
have/has been +v-ed
Preparation
Read and observe more sentences.
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.
have/has been done
The present perfect passive voice.（现在完成时的被动语态）
Preparation
Present perfect passive voice：
现在完成时的被动语态
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
Presentation
Present perfect passive voice：
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
Presentation
Present perfect passive voice：
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）
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 gone on for three months.（T）
Presentation
Present perfect passive voice：
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
Presentation
1.找时：找与现在完成相对应的时间状语；
2.圈主：主语与动词构成被动关系；
3.定谓：确定谓动形式：have/ has (not) been done。
现在完成时被动语态的解题步骤
Presentation
1. - The window is dirty.
- I know. It __________________ (not clean) for weeks.
2. Paper money _____________ (use) for over nine hundred years.
3. It is the first time that Henry ______________ (ask) why he likes working in a library.
4. John _________ (love) singing, dancing and acting since he was a young boy.
5. So far, a new advance _______________ (make) in the control of the disease.
一、用所给动词的适当形式填空。
hasn’t been cleaned
has been used
has been asked
has loved
has been made
Practice
6. Up to now, more than 2,000 trees _________________ (plant) by the team in this dry area.
7. Shakespeare’s play Hamlet ______________ (make) into at least ten different films over the past years.
8. In the last few years thousands of films ____________________ (produce) all over the world.
9. Many buildings ______________ (build) since 1980.
have been planted
has been made
have been produced
have been built
Practice
The letter (post)
already.
has been posted
Practice
Observe the following pictures and try to fill in the blanks.
Many houses (build) for the poor so far.
have been built
Practice
Observe the following pictures and try to fill in the blanks.
The machine
(repair) for two hours but it still doesn’t work.
has been repaired
Practice
Observe the following pictures and try to fill in the blanks.
Paper money (use) for over 50 years.
has been used
Practice
Observe the following pictures and try to fill in the blanks.
You shouldn’t leave school before your homework_______________(finish).
has been finished
Practice
Observe the following pictures and try to fill in the blanks.
Everyone will feel extremely delighted if he________________(admit) to Sun Yat-sen University.
has been admitted
Practice
Observe the following pictures and try to fill in the blanks.
1. I have downloaded the software to help my phone battery last longer.
2. Someone has lost an identity card.
3. Have you confirmed the Wi-Fi password
4. Have you pressed the button yet to copy the file
5. Has anyone made a comment about the online database
The software has been downloaded to help my phone battery last longer.
An identity card has been lost.
Has the Wi-Fi password been confirmed
Has the button been pressed yet to copy the file
Has a/any comment been made about the online database
Practice
三、把下面句子改成被动语态。
What we should do to reduce the negative impact of the Internet
Health problems
PROBLEMS
SOLUTIONS
Fake news
Personal information
Cyberbully
Damage to social relationship
......
eg.
Personal information has been hidden so that we can protect our privacy.
Production
Let’s play.
击鼓传花
一人拿花，音乐响起传花,音乐停止，花在谁手中谁就上来说出solution，如：Personal information has been hidden so that we can protect our privacy.
1.
Fake news
2.
Health problems
3.
Damage to social relationship
4. Cyberbully
Production
5.
Personal information
现在完成时的被动语态
含义
结构
表示过去发生的被动动作现在已经完
成或仍将持续, 强调对现在的影响
have/has been done
形式
肯定式
否定式
疑问式
have/has been done
have/has not been done
Have/Has+主语+been done
特殊疑问词+have/has+主语+been done
用法
表示已经完成的被动动作
表示过去开始的被动动作一直持续到现在
表示某被动动作对现在造成的影响或结果
注意事项
动词短语不可分割也不可省略其中的介词和副词
不及物动词或词组无被动
Summary
Assessment
Items Great (5 pt.) Not bad (3 pt.) Try harder
(2 pt.)
I can understand and master the grammar .
I can use the grammar correctly.
I am able to use the grammar to describe pictures .
I am able to use the grammar to make sentences.
Points(pt.) _______________in total. Homework
提升作业
Draw a mind map of the grammar.
基础作业
Review grammar and finish grammar exercise in your exercise book.
拓展作业
Use the grammar to make describe things you like with your partner.
https://www.21cnjy.com/help/help_extract.php
让备课更有效
www.21cnjy.com
Thanks!