人教版（2019）必修 第二册Unit 3 The internet Discovering Useful Structures语法课件(共15张PPT)
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| 名称 | 人教版（2019）必修 第二册Unit 3 The internet Discovering Useful Structures语法课件(共15张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 3.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-03-03 09:28:21 | ||
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(共15张PPT)
Unit 3
The Internet
Discovering useful structures
一、什么是语态？
语态是英语动词的一种表现形式，用来说明_________和__________之间的关系。
二、语态的种类：___________和____________
主语
谓语动词
主动
被动
The passive voice 被动语态
Review
三、结构：be + done
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。
一. 定义
present(now)
future
past
现在完成时的结构:
S + have/ has + V-过去分词（done）
被动语态的结构:
be+ V-过去分词（done）
Summary：
现在完成时的被动语态肯定式就是：
主语+have/has+been+ done
人教版2019版 高一 unit3 The Internet grammar【优秀课件】
人教版2019版 高一 unit3 The Internet grammar【优秀课件】
二. 结构
Tall buildings__________________(build) everywhere.
have been built
【Practice】
肯定式： S+have/has+V-过去分词(done)
否定式： S+have/has+not+V-过去分词...
一般问句： Have/Has+S+V-过去分词...
特殊疑问句： 疑问词+have/has+S+V-过去分词...
现在完成时的基本结构
肯定式： S+have/has been done...
否定式： S+have/has not been done...
一般问句： Have/Has+S+been done
特殊疑问句： 疑问词+have/has+S+been done
现在完成被动语态的基本结构
① 动作在说话之前已完成，强调过去的动作对现在造成的影响或结果，常与之连用的时间状语为：already; yet (否定和疑问句); just; ever; recently；since then；for a long time；lately等。
三. 用法
We’ve done a lot of work on it, but we _______________(finish) yet.
have not finished
The letter (post) already.
has been posted
Tom ________________ (work) in the library every night over the last three months.
has been working
The machine (repair) for two hours but it still doesn’t work.
has 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，并且有可能继续持续下去。常与之连用的时间状语有：for+一段时间；since+过去的某个时间/时间状语从句; so far; up to/till/by now; these days; over time; over/in during the past/recent years.
①与一般过去时被动语态的区别
一般过去时的被动语态所表示的动作或状态与现在的情况没有联系，而现在完成时的被动语态则强调与现在的情况有联系。
四. 注意要点
The park was opened to the public last year.
去年这个公园向公众开放。
The park has been opened to the public.
这个公园已向公众开放。
The bike has been brought for a year.（ ）
The bike has been had for a year. （ ）
T
F
②由finish, buy, start, begin, post, return, borrow,marry, open等非延续性动词,不能与表示段时间的状语，若要表达相应的意思，需要改变动词或时态。
判断正误:
The patient has been taken good care. ( )
The patient has been taken good care of. ( )
X
V
⑤副词的位置：often, usually, always, never, hardly, seldom等副词置于have/has和been中间
Such a man has hardly been believed.
The machine has already been repaired.
④ 短语动词不能分割，而且不能省略短语动词中的介词或副词
Taiwan belongs to China.
The coat cost me 300.
不是所有的动词都有被动语态。如happen, occur, take place, break out, belong to, cost, last 等不及物动词或词组，就没有被动语态。
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
1. First as a PC and then as a laptop, I_________________(use) in offices and homes since the 1970s.
2. Over time my memory ________________ (develop) so much that I never forget anything I ________________(told).
3. Since the 1970s many new applications _________________ (find)for me.
4. I have also ___________(put) into robots and used to make mobile phones as well as________ (help) with medical operations.
has developed
have been told
have been used
have been found
been put
help
【Practice】 根据汉语完成句子
Unit 3
The Internet
Discovering useful structures
一、什么是语态？
语态是英语动词的一种表现形式，用来说明_________和__________之间的关系。
二、语态的种类：___________和____________
主语
谓语动词
主动
被动
The passive voice 被动语态
Review
三、结构：be + done
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。
一. 定义
present(now)
future
past
现在完成时的结构:
S + have/ has + V-过去分词（done）
被动语态的结构:
be+ V-过去分词（done）
Summary：
现在完成时的被动语态肯定式就是：
主语+have/has+been+ done
人教版2019版 高一 unit3 The Internet grammar【优秀课件】
人教版2019版 高一 unit3 The Internet grammar【优秀课件】
二. 结构
Tall buildings__________________(build) everywhere.
have been built
【Practice】
肯定式： S+have/has+V-过去分词(done)
否定式： S+have/has+not+V-过去分词...
一般问句： Have/Has+S+V-过去分词...
特殊疑问句： 疑问词+have/has+S+V-过去分词...
现在完成时的基本结构
肯定式： S+have/has been done...
否定式： S+have/has not been done...
一般问句： Have/Has+S+been done
特殊疑问句： 疑问词+have/has+S+been done
现在完成被动语态的基本结构
① 动作在说话之前已完成，强调过去的动作对现在造成的影响或结果，常与之连用的时间状语为：already; yet (否定和疑问句); just; ever; recently；since then；for a long time；lately等。
三. 用法
We’ve done a lot of work on it, but we _______________(finish) yet.
have not finished
The letter (post) already.
has been posted
Tom ________________ (work) in the library every night over the last three months.
has been working
The machine (repair) for two hours but it still doesn’t work.
has 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，并且有可能继续持续下去。常与之连用的时间状语有：for+一段时间；since+过去的某个时间/时间状语从句; so far; up to/till/by now; these days; over time; over/in during the past/recent years.
①与一般过去时被动语态的区别
一般过去时的被动语态所表示的动作或状态与现在的情况没有联系，而现在完成时的被动语态则强调与现在的情况有联系。
四. 注意要点
The park was opened to the public last year.
去年这个公园向公众开放。
The park has been opened to the public.
这个公园已向公众开放。
The bike has been brought for a year.（ ）
The bike has been had for a year. （ ）
T
F
②由finish, buy, start, begin, post, return, borrow,marry, open等非延续性动词,不能与表示段时间的状语，若要表达相应的意思，需要改变动词或时态。
判断正误:
The patient has been taken good care. ( )
The patient has been taken good care of. ( )
X
V
⑤副词的位置：often, usually, always, never, hardly, seldom等副词置于have/has和been中间
Such a man has hardly been believed.
The machine has already been repaired.
④ 短语动词不能分割，而且不能省略短语动词中的介词或副词
Taiwan belongs to China.
The coat cost me 300.
不是所有的动词都有被动语态。如happen, occur, take place, break out, belong to, cost, last 等不及物动词或词组，就没有被动语态。
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
1. First as a PC and then as a laptop, I_________________(use) in offices and homes since the 1970s.
2. Over time my memory ________________ (develop) so much that I never forget anything I ________________(told).
3. Since the 1970s many new applications _________________ (find)for me.
4. I have also ___________(put) into robots and used to make mobile phones as well as________ (help) with medical operations.
has developed
have been told
have been used
have been found
been put
help
【Practice】 根据汉语完成句子