人教版（2019）必修 第二册Unit 3 The Internet Discovering Useful Structures课件(共20张PPT，内镶嵌视频)
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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20张PPT，内镶嵌视频) |  | |
| 格式 | pptx | ||
| 文件大小 | 5.2MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-02-24 15:01:26 | ||
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(共20张PPT)
Unit 3 The Internet
Discovering useful structures
To learn the present perfect passive voice
To use the present perfect passive voice to do some exercises and talk about something has been done
To read a poem and learn to write your own poem
Step1 Lead in
Active and passive voices
单击输入您的封面副标题
Lead-in
Step2 Presentation
主语 + have/ has + V-ed (过去分词done)
助动词,无意义
一、现在完成时的结构
Winter has already come .
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
肯定式：
主语 + have/has+ been + done(V-过去分词)
否定式：
主语 + have/has+ not + been + done...
一般疑问句：
Have/Has + 主语 + been + done...？
特殊疑问句：
疑问词 + have/has + 主语 + been + done...？
现在完成时的被动语态的结构
常与现在完成时连用的时间状语有：
already已经 yet 已经 ever 曾经
recently/lately 最近
since then 从那时起 ever since 自那以来
since 1990 从1990年起 since +一般过去时的句子
so far/up till now 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
Read the pairs of sentences. Underline and compare the different verb forms.
Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life.
Much has been written about the wonders of the World Wide Web. People have written much about the wonders of the World Wide Web.
Verb form
Active
Passive
have / has + been + v-ed
How do we form the present perfect passive voice Fill in the blank.
have /has + v-ed
______________________
表示 “某人/某事/某物已经被…”
Change the sentences into the present perfect passive voice.
They’ve built a kind of new PC with more functions.
A kind of new PC has been built with more functions.
n. 功能；作用
vi. 起作用；运转
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
n. 电池
vt. 确认；使确信
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
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
4. Have you pressed the button yet to copy the file
5. Has anyone made a comment about the online database
Has the button been pressed yet to copy the file
Has a/any comment been made about the online database
n. 文件, 档案
Underline the use of the present perfect passive voice in the following poem. Then fill in the chart below.
Look at the way your face has been washed
Look at the way your teeth have been brushed
Look at the way your shoes have been cleaned
You’d better do them again.
Look at the way the flowers have been planted
Look at the way the grass has been cut
Look at the way the paths have been swept
I hope that you’ll come here again.
Step4
Summary
SUMMMARY
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
Homework
课本P114-115
AAA
cost-cost-cost
ABA
become-became-become
ABB
bring-brought-brought
AAB
beat-beat-beaten
ABC
be(am, is, are)-was, were-been
Homework
Finish the exercise on your reference book.
Thank you.
Unit 3 The Internet
Discovering useful structures
To learn the present perfect passive voice
To use the present perfect passive voice to do some exercises and talk about something has been done
To read a poem and learn to write your own poem
Step1 Lead in
Active and passive voices
单击输入您的封面副标题
Lead-in
Step2 Presentation
主语 + have/ has + V-ed (过去分词done)
助动词,无意义
一、现在完成时的结构
Winter has already come .
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
肯定式：
主语 + have/has+ been + done(V-过去分词)
否定式：
主语 + have/has+ not + been + done...
一般疑问句：
Have/Has + 主语 + been + done...？
特殊疑问句：
疑问词 + have/has + 主语 + been + done...？
现在完成时的被动语态的结构
常与现在完成时连用的时间状语有：
already已经 yet 已经 ever 曾经
recently/lately 最近
since then 从那时起 ever since 自那以来
since 1990 从1990年起 since +一般过去时的句子
so far/up till now 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
Read the pairs of sentences. Underline and compare the different verb forms.
Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life.
Much has been written about the wonders of the World Wide Web. People have written much about the wonders of the World Wide Web.
Verb form
Active
Passive
have / has + been + v-ed
How do we form the present perfect passive voice Fill in the blank.
have /has + v-ed
______________________
表示 “某人/某事/某物已经被…”
Change the sentences into the present perfect passive voice.
They’ve built a kind of new PC with more functions.
A kind of new PC has been built with more functions.
n. 功能；作用
vi. 起作用；运转
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
n. 电池
vt. 确认；使确信
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
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
4. Have you pressed the button yet to copy the file
5. Has anyone made a comment about the online database
Has the button been pressed yet to copy the file
Has a/any comment been made about the online database
n. 文件, 档案
Underline the use of the present perfect passive voice in the following poem. Then fill in the chart below.
Look at the way your face has been washed
Look at the way your teeth have been brushed
Look at the way your shoes have been cleaned
You’d better do them again.
Look at the way the flowers have been planted
Look at the way the grass has been cut
Look at the way the paths have been swept
I hope that you’ll come here again.
Step4
Summary
SUMMMARY
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
Homework
课本P114-115
AAA
cost-cost-cost
ABA
become-became-become
ABB
bring-brought-brought
AAB
beat-beat-beaten
ABC
be(am, is, are)-was, were-been
Homework
Finish the exercise on your reference book.
Thank you.