高中英语人教版 (2019)必修 第二册Unit 3 The internet说课课件ppt

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Analyze the frm and feature f the present perfect passive vice;Find ut the differences in meaning and functin between the active and passive frms;Master the functin f the present perfect passive vice in the cntext and use it in real situatins.
Teaching bjectives
挑事儿：Yu hit me!
Cme and help me! I was hit / beaten.
一、结构：be + dne
The passive vice 被动语态
二、意义：被动语态表示主语是动作的承受者。
Lead-in--Review
以上句子中所使用的时态和语态是 。
An enemy has been slained.一名敌人被击杀。An ally(同盟国，盟友) has been slained.我方队友被击杀。Yu have been slained.你被击杀了。
1.以上句子中所使用的时态和语态是 。2.现在完成时的被动语态的构为： 。
have/has been＋过去分词
An enemy has been slained.一名敌人被击杀。An ally has been slained.我方队友被击杀。Yu have been slained.你被击杀了。
Observe the example sentences and summarize the structures f the present perfect passive vice.
Presentatin
What is Present Perfect tense?
Present Perfect Tense 现在完成时
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
I have dwnladed the sftware t help my phne battery last lnger.
Smene has lst an identity card.
The sftware has been dwnladed t help my phne battery last lnger.
An identity card has been lst.
Have yu cnfirmed the Wi-Fi passwrd?
Have yu pressed the buttn yet t cpy the file?
Has anyne made a cmment abut the nline database?
Has the Wi-Fi passwrd been cnfirmed?
Has the buttn been pressed yet t cpy the file?
Has a/any cmment been made abut the nline database?
1. The party has been planned since the New Year.2. Many new buildings have been built in the past few years.3. The experiment has been dne successfully. 4. The machine has been repaired fr tw hurs.5. I haven’t seen Jamie in tw mnths.6. Great changes have taken place in my hmetwn in the past 10 years.
Find the present perfect passive structures
passive vice
active vice
Read the pairs f sentences.Underline and cmpare the different verb frms.
现在完成时的被动语态的用法
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；fr a lng time；lately等。
We’ve dne a lt f wrk n it, but we ______________(finish) yet.
have nt finished
The letter (pst) already.
has been psted
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：fr+一段时间；since+过去的某个时间/时间状语从句; s far; up t/till/by nw; these days; ver time; ver/in during the past/recent years.
Tm ________________ (wrk) in the library every night ver the last three mnths.
has been wrking
The machine (repair) fr tw hurs but it still desn’t wrk.
has been repaired
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。
Yu shuldn't leave schl befre yur hmewrk has been finished.
Everyne will feel extremely delighted if he_________________(admit) t Suth China Nrmal University.
has been admitted
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。
The 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）The 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.由finish, buy, start, begin, pst, return, brrw,marry, pen等词构成的现在完成时的被动语态,不能与表示段时间的状语，如fr fur days, hw lng等连用，而要改换动词或者是时态。判断正误:
He has died fr 3 years.（ ） He died 3 years ag.（ ）
3. 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).
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。判断正误: The patient has been taken gd care. ( ) The patient has been taken gd care f. ( )
5.副词的位置：ften, usually, always, never, hardly, seldm等副词置于have/has和been中间
Such a man has hardly been believed.The machine has already been repaired.
5.并不是所有的动词都有被动语态。如happen, ccur, take place, break ut, belng t, cst, last 等不及物动词或词组，就没有被动语态。
Taiwan belngs t China.The cat cst me ¥300.
6.主动语态中作宾语补足语的不带t的不定式，变为被动时，要加上t。The engineer made the rbt clean the windws f the tall building.The rbt was made t clean the windws f the tall building.
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 (nt) been dne。
现在完成时被动语态的解题步骤
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 dne
have/has nt been dne
Have/Has+主语+been dne?
特殊疑问词+have/has+主语+been dne?
表示已经完成的被动动作
表示开始于过去并可能持续下去的被动动作
在时间状从,条件状从中,表示还未发生的被动动作
区分have/has been dne/ be being dne/ be dne
不及物动词或词组无被动
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.
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
10. When yu get the papers back, pay special attentin t what 　　　　 (mark). 11. In recent years many sprts clubs 　　　　 (run) t make a prfit. 12. I want t buy this kind f clth because I 　　　　 . (tell) that the clth washes well. 13. Over the past ten years, this twn　　　　 (hit) twice by earthquakes.  
has been marked
have been run
have been tld
has been hit
14. A lt f damage 　　　　 (cause) by a snwstrm which hit the nrth f the cuntry last night.  15. I like these sngs very much which 　　　　 . (teach) recently n the radi. 16. When and where ur prfessr will give us a lecture________________________(nt decide) yet. 17. Great changes　　　　 (take) place in my hmetwn since 2016. 
has been caused 　
have been taught
hasn't been decided
have taken