高中英语人教版 (2019)必修 第二册Unit 3 The internet课文内容课件ppt

这是一份高中英语人教版 (2019)必修 第二册Unit 3 The internet课文内容课件ppt，共37页。PPT课件主要包含了Enjoy，注意时间状语，注意与其它时态区别等内容，欢迎下载使用。

Unit 3THE INTERNET
Discvering Useful Structures
Yu have slain an enemy.Yur team has destryed the turret.
slay – slew - slain
have/ has dne
have/ has been dne
An ally has been slain.An enemy has been slain.Yu have been slain.Yur turret has been destryed.
slay-slain-slain
谓语have/has dne之间加been注意单复数
主语变宾语放在by 后边
Hw t change the active vice int passive vice?
by yur team.
the turret.
has destryed
The turret
have finished .
现在完成时主动变被动的解题步骤1.一找：找主动语态的主谓宾2.二变：宾变主，主变宾3.三改：把谓语动词由主动改为被动：have/ has dne
现在完成时的被动语态肯定式就是：
主语 + have/has + been + V-过去分词
Let’s lk at ur classrm.
The classrm has been cleaned .
The windws have been cleaned .
The desks have been placed neatly.
The pictures have been put up n the wall.
Sme pictures have been drawn n the blackbard.
The tls have been placed neatly .
假定你是高一（9）班班长李华，你的美国笔友Peter在互联网上了解到十堰正在创建全国文明城市，他对此非常感兴趣，请你用英语写一封邮件，告诉他十堰创文以来取得的重大变化。
We are trying t make ur hmetwn a civilized city.Great changes have taken place in Shiyan.
plant mre trees
The street has been widened.
widen the street
adpt garbage srting
The utside walls have been painted.
paint the utside walls
fix new sprts equipment
set up a new bridge
built a new hspital
add the walking trails
set up a new square
Great changes have taken place in my hmetwn in the past few decades. The public facilities(设施) ______________ (imprve) s far. Many rads________________(wide). Besides, Mre attentin ____________ (give) t the envirnmental prtectin, s many trees and flwers are being planted nw.The water in the rivers as well as the air has becme clean again. As many peple say, It seems that we are nw living in a “big park”. Hwever, things can get bad if we dn’t appreciate what we have nw.
have been imprved
have been widened
has been given
1. I have asked her t help yu.
将下列主动句变为被动句
2. They have fund a gd place t build a library in the city.
3. We have planted many trees n the hill in the last tw years.
She has been asked by me t help yu.
A gd place has been fund by them t build a library in the city.
Many trees have been planted by us n the hill in the last tw years.
Activity 3 学以致用之句子层面
Read the pem.
Lk at the way yur face has been washed Lk at the way yur teeth have been brushed Lk at the way yur shes have been cleaned Yu'd better d them again.
Lk at the way the flwers have been planted Lk at the way the grass has been cut Lk at the way the paths have been swept I hpe that yu'll cme here again.
Think f yur wn situatin and write a similar pem.
Time t talk!
Share yur pem with yur partner!
Lk at the way the windws have been cleanedLk at the way the classrm has been cleaned Lk at the way the tls have been placed neatly .
I hpe that yu'll cme t ur classrm again.
The children have already been tld(tell) the gd news.
Have the children been tld the gd news yet?
Wh has been tld the gd news yet?
The children have been tld the gd news yet.
③特殊疑问句（对划线部分提问）：
按要求改变句式
The letter (pst) already.
Observe the fllwing sentences and try t fill in the blanks.
has been psted
Many huses (build) fr the pr s far.
have been built
用法1: 被动动作发生在过去,已经完成, 对现在造成影响或产生结果。(常与already, yet, just s far, by nwever, never, recently等连用。)
The machine (repair) fr tw hurs but it still desn’t wrk.
has been repaired
Paper mney (use) fr ver 50 years.
has been used
用法2:被动动作发生在过去, 持续到现在, 并有可能继续持续下去。(fr+一段时间; since+时间状语(从句)，these days, up t nw, in the last/ past few years等)
Understand the structure
Until nw, it has been played by ver 200 millin registered players.2. During the past years, many teenagers have been fund verly addicted t peple’s minds and bdies have already been cnsumed and pisned by their addictin t the game. 4. Since 2018, a series f anti-addictin measures have been taken t limit the time and mney teens spend n games. 5. Fr a lng time, they have nt been allwed t lg in after 9 pm.
Questin 1: What time wrds remind yu t use present perfect tense?
1. The machine has been repaired already.1. The machine is being repaired nw. 1. The machine was repaired yesterday.
说明动作发生在过去,对现在有影响, “现在修好了”
2. The baby has been taken gd care f.2. The baby has been taken gd care.
注意:动词短语的介词或副词不可去掉
3. Great changes have been taken place since 1978.3. Great changes have taken place since 1978.
Attentin: 不及物动词或词组无被动：（happen、take place、break ut、belng t、cst、last）
注意:不及物动词或词组无被动