高中人教版 (2019)Unit 3 The internet一等奖ppt课件

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Learning bjectives:
1. learn the frm f Present perfect passive vice.
2. knw hw t use Present perfect passive vice in a specific situatin.
3. write a blg t discuss the advantages and disadvantages f Internet.
Present perfect passive vive
PART 01 Review
Active and Passive Vice& The Present Perfect
BOOK2 UNIT3 THE INTERNET
Active & passive vices
gave(did)-was given(be dne)
She was clthed by Athena.
clthed（did)-was clthed(be dne)
She was given beauty by Aphrite.
被动语态的基本形式: be dne（动词的过去分词）
Pandra was clthed by Athena.
Athena clthedPandra.
语态用来表示主语与谓语之间的关系，它是动词的一种形式。英语中有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者，而被动语态表示主语是动作的承受者。被动语态的句子中由______引出动作的发出者。
The Present Perfect.
主语 + have/ has + V-过去分词(dne)
注：主语若是第三人称单数助动词用 has
Present Perfect Tense（现在完成时）表示说话时已经完成的动作，而且这个动作的结果对现在仍有影响;表示动作发生在过去，但一直持续到现在，并且有可能继续持续下去。
Part 02 The Present Perfect Passive Vive
结构/用法/注意/真题
1. Much has been written abut the wnders f the Wrld Wide Web.2. Peple’s lives have been changed by nline cmmunities and scial netwrks. 3. Many peple have been helped by the club. 4. Jan’s life has been greatly imprved by the Internet.
Can yu find the sentences with the present perfect passive vice in the passage n P28?
Present perfect passive vice
Read the pairs f sentences. Underline and cmpare the different verb frms.
Talk abut smething that has been dne
Jan’s life has been greatly imprved by the Internet.Much has been written abut the wnders f the Wrld Wide Web.
The Internet has greatly imprved Jan’s life.Peple have written much abut the wnders f the Wrld Wide Web.
The students have cleaned the classrm.The classrm has been cleaned. Yu needn’t clean it nw.
表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。
Hw d we frm the present perfect passive vice? Fill in the blank.
have/has been + v -ed
主动语态变被动语态的原则
原句意思不变 原句时态不变 原句主谓宾以外成分不变
现在完成时的被动语态结构形式
肯定形式：His hmewrk has been finished.否定形式：His hmewrk has nt been finished.一般疑问句:Has his hmewrk been finished yet?特殊疑问句：Hw lng has his hmewrk been finished?
现在完成时的被动语态的用法
The letter (pst) already.
Many huses (build) fr the pr s far.
has been psted
have been built
用法1: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
The machine__________________(repair) fr tw hurs but it still desn’t wrk.
Paper mney_______________(use) fr ver 50 years.
has been repaired
have been used
用法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fr或since引导的时间状语连用，或用于“Hw ”句型中。
Yu shuldn’t leave schl befre yur hmewrk ____________________(finish).
Everyne will feel extremely delighted if he___________________(admit) t Tsinghua University.
has been finished
has been admitted
用法3:用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。
常与现在完成时连用的时间状语
already 已经(肯定句) yet 已经（否定句或者疑问句）recently/lately 最近 since then 从那时起ever since 自那以来 ever 曾经s far 迄今为止 fr a lng time 很长一段时间by nw 到现在为止 in recent years 在最近几年里in/during/ver the past/last years在过去的几年里
1. Bth learning sites ___________________ (visit) by ver 10,000 peple since last year. 2. Great changes ___________________ (take place) in my hmetwn and a lt f factries _________________ (set up). 3. This keybard ____________________ (nt use) fr a lng time.
have been visited
have taken place
have been set up
has nt been used
4. In the past few years, I __________________ (inspire) t buy e-bks instead f paper bks. 5. Till nw, three films _______________ (shw) in that small village this mnth.
have been inspired
have been shwn
现在完成时态被动语态运用注意
1. 与一般过去时的被动语态的区别。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。
①The park was pened t the public last year.去年这个公园向公众开放。（说明动作发生于过去）②The park has been pened t the public.这个公园已向公众开放。（说明动作发生在过去，但对现在有影响，即现在公园已经向公众开放了）
2. 非延续性动词，如 brrw, finish, begin, start, buy, marry, pen, jin 等构成的现在完成时的被动语态不能和一段时间状语连用。
①The wrk was finished tw weeks ag.这项工作于两周前被完成。②The wrk has been finished. 这项工作已经被完成。
5. 带有双宾语的动词，如give, send, bring, take, teach, shw, tell, make, sing, write, read, sell, buy, pay, lend, pass, prmise等，变为被动语态时，将间接宾语变为主语，若将直接宾语变为主语时，间接宾语前面要用相应的介词短语。
The cmpany has given him a chance t wrk abrad recently.→ He has been given a chance t wrk abrad recently ( by the cmpany).→ A chance t wrk abrad has been given t him recently (by the cmpany).
6. 带有复合宾语的动词变为被动语态时，只能将宾语变为主语，宾补变为主补。注意：原来省略t的不定式作宾补时，被动语态时 t要加回去。
I have tld them t take their identity cards.--They have been tld t take their identity cards.
7. 副词的位置：ften, usually, always, never, hardly, seldm等副词置于have/has和been中间
①Such a man has hardly been believed.②The machine has already been repaired.
8. 只有及物动词才有被动语态形式，但不是所有的及物动词都是如此，如某些表示状态或表示关系的动词或短语只有主动语态，而无被动语态。常见的这类动词有：cst (花费), fit (适合), have (有), hld (容纳), lack (缺乏), wn (占有), suit(适合), fail (失败), last (持续),happen (发生), ccur (发生), take place (发生), break ut (爆发), belng t (属于), agree with (同意)
①Taiwan belngs t China.② The cat cst me ¥300.
Part 03 Practice
1. We’ve dne a lt f wrk n it, but we _______________ (finish) yet. 2. Tm ________________ (wrk) in the library every night ver the last three mnths. 3. Mre public transprt _____________ (build) in China, making it easier fr peple t travel.4. Prgress _________ (be) s far very gd and we are sure that the wrk will be finished n time. 5. _____________ (eat) at the cafeteria befre, Tina didn’t want t eat there again.
have nt finished
has been wrking
has been built
Having eaten
6. N agreement ____________ (reach) yesterday after many runds f talks. 7. Despite the previus runds f talks, n agreement _______________ (reach) s far by the tw sides. 8. I ________________ (shw) arund the Water Cube fr many times since it was built. 9. _________________ (shw) arund the Water Cube, we were then taken t see the Bird’s Nest fr the 2008 Olympic Games.
was reached
has been reached
have been shwn
Having been shwn
Our art festival ____________ (hld) next mnth. Recently, many English plays _____________ (try) and we finally chse a shrt English play. Since then, we ___________________ (practice) these days. _________ (knw) that yu have much experience in English plays, we hpe yu can give us sme advice n it. _______________ (tell) the effective way t practice and perfrm, we still need yur further guidance. We __________________ (practice) at the schl hall this Thursday afternn. We _______________ (appreciate) it very much if yu culd give us sme suggestins.
will be held
have been tried
have been practicing
Having been tld
are ging t practice
wuld appreciate
Part 04 Summary
Revisin f the Passive Vice
am / is / are dne
am / is / are being dne
was / were dne
shall / will be dne
was / were being dne
had been dne
shall / will have been dne
has / have been dne
The basic cmpsitin f passive vice
Imprtant phrases (P30)
an identity cardcnfirm the passwrdcpy the file
一张身份证确认密码 / 口令复制文件
Imprtant sentences (P30)
Lk at the way the paths have been swept.
还原：Lk at the way (in which) (that) (省略) the paths have been swept.
我建议你改变一下和父母相处的方式。（翻译）
I suggest that yu change the way (that) yu get alng with yur parents.
The research has been dne successfully.
The authr’s new stry has nt been published.
Has his washing machine been repaired?
Wh has been invited?
肯定式：have / has been dne
否定式：have / has nt been dne
一般疑问句：把have / has提到主语的前面
特殊疑问句：特殊疑问词 + have / has been dne