人教新课标必修2 Unit 3 Computers 现在完成时的被动语态课件 (23张PPT)

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名称 人教新课标必修2 Unit 3 Computers 现在完成时的被动语态课件 (23张PPT)
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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 2019-06-23 09:58:50

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课件23张PPT。高一英语人教版 Unit3 Computers 现在完成时的被动语态Teaching Goals 1)Enable students to master the usage of the present perfect passive voice .
2)Enable students to apply the present perfect passive voice.
Find the Differences
Find out the differences between two.
pictures and describe the differences.
Pay attention to the sentence structure. Lead-inthe window(open)
the painting(move)
two chairs(put )
the books(close)
the dishes(place)
the sweater
(take away)

The window has been opened.The window has been opened.
The painting has been moved.
The chairs have been put together.
The books have been closed.
The dishes have been placed on the desk.
The sweater have been taken away.
Revisionpresent perfect tense
现在完成时 2.表示动作发生在过去,持续到现在,并有可能继续持续下去。1.表示过去发生的动作对现在造成影响。主语 + have / has + 过去分词现在完成时(have/has + done)常与already, ever, never, yet, not...yet, just等时间副词连用, 还可以和表示时间一直延续到目前的带since, for,so far, recently, these few days,in the past few years等连用。The Present Perfect Passive Voice
现在完成时的被动语态GrammarSentence Translation1.Over time,I have not been changed quite a lot.
2.First as a PC and then as a laptop,I have been used in offices and homes since the 1970s.
3.Have many new applications been found for me since the 1970s ?
宾变主, 主变宾, by短语后面跟。
谓语动词变被动, be后“过分”来使用。a personal computerhave boughtA personal computer
动作的承受者has been bought Weby us
执行者主动语态被动语态recently.recently.Europe has invented a wrist-worn PC recently.A wrist-worn PC has been invented in Europe recently.A Chinese scientist has already developed A pen-like computer.A pen-like computer has already been developed by a Chinese scientist.18The earthquake has killed many people .practice Many people have been killed by the earthquake .二、现在完成时的被动语态应注意的问题 [误] Such a man has been hardly
believed.
1. 副词的位置
often, usually, always, never, hardly, seldom等副词置于have/has和been中间。 [正] Such a man has hardly been
believed. [误]A big earthquake was happened in Wenchuan.
[正] A big earthquake happened
in Wenchuan.2. 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。3. 动词短语不可分割,也不能省略其中的介词或副词。
[误]The little girl has been taken good care .[正]The little girl has been taken good care of.[误] My brother has bought this bike for almost four years.[正]My brother has had this bike for almost four years.4. 一些特殊动词, 如borrow, finish, begin, buy, start, return, marry, open, join等短暂动词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。其否定式则可以与for或since 构成的时间状语Consolidation and application 
巩固与应用
1.This book has been borrowed since last week.
2. Tom and Mary married for two years.
3.Some trees were planted on the hill every year.
4.Great changes have been taken place in China since 1978
5.This is the first time that he had been given such a good chance. 一.单句改错has been borrowed have been marriedarehave taken placehas高考对接练习题语法填空题中考查
1. — I feel very happy that I ----------- (choose) to be the host.
— Congratulations!
2. Today Chinese -------------(speak) by more and more people around the world.
3. — Your hometown has changed a lot.
— Yes. Take a look at these tall buildings.
----They ---------(build) last year.
4. — Why is the classroom so dirty? — Sorry, sir. It -----------(clean) yesterday, We forgot to do it.
5.The Chinese food ----------(consider) to be the healthiest in the world.
6.His watch was lost two days ago and ----------- (find)yet.
(have been chosen)(is spoken)(were built)(wasn't cleaned)(is considered)
(has not been found) Step 5 SummaryPlease summarize the structure of the Passive Voice.
What have you learnt today?ApplicationWhat has happened to where I live?old buildings,
pull downnew buildings, buildroad, widen28ApplicationWhat else has happened ?
An old high school…(rebuild)
Many shops…(open)
Many trees and flowers...(plant)
Real estate(房地产)...(develop)
More people…(move)2019/7/2829Many old buildings have been pulled down