高中英语人教版 (2019)必修 第二册Unit 3 The internet课前预习ppt课件

这是一份高中英语人教版 (2019)必修 第二册Unit 3 The internet课前预习ppt课件，共29页。PPT课件主要包含了目录页，contents， Lead-in， Homework， Lead-in，即学即练，拓展与补充一，一般过去时的被动语态，现在完成时的被动语态，拓展与补充二等内容，欢迎下载使用。
Language pints
Present perfect passive vice
Lk at the way yur face has been washedLk at the way yur teeth have been brushedLk at the way yur shes have been cleaned Yu’d better d them again. Lk at the way the flwers have been plantedLk at the way the grass has been cutLk at the way the paths have been sweptI hpe that yu’ll cme here again.
Lead-in: Appreciate a pem
Lead in: Appreciate a pem
What’s the cmmn verb frm f these sentences?
Verb frm: present perfect passive vice have / has been dne
Present perfect passive vice
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
1. Peple have written much abut the wnders f the Wrld Wide Web. 2. Online cmmunities and scial netwrks have changed peple’s lives.3. The club has helped many peple. 4. The Internet has greatly imprved Jan’s life.
Which grup is better? Why?
Cmpare and Find
Change the sentences belw int the present perfect passive vice.
1. I have dwnladed the sftware t help my phne battery last lnger.
The sftware has been dwnladed t help my phne battery last lnger.
2. Smene has lst an identity card.
An identity card has been lst.
3. Have yu cnfirmed the Wi-Fi passwrd?
Has the Wi-Fi passwrd been cnfirmed?
4. Have yu pressed the buttn yet t cpy the file?
Has the buttn been pressed yet t cpy the file?
5. Has anyne made a cmment abut the nline database?
Has a / any cmment been made abut the nline database?
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。
思考：什么时候用被动语态？
不知道动作的执行者没有必要指出动作的执行者强调动作的承受者
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. 5. The sftware has been dwnladed t help my phne battery last lnger. 6. Has the Wi-Fi passwrd been cnfirmed? 7. Has the buttn been pressed yet t cpy the file?8. An identity card has been lst.
思考：现在完成时的被动语态有什么意义？
主语和谓语是被动的关系： 表示动作从过去一直持续到现在，有可能还会继续进行 动作已经完成，强调对现在造成的影响或结果
现在完成时的被动语态的句式：
The research has been dne successfully.
现在完成时被动语态的肯定式：have / has been dne
The authr’s new stry has nt been published.
现在完成时被动语态的否定式：have / has nt been dne
Has his washing machine been repaired?
现在完成时被动语态的一般疑问句：把have / has提到主语的前面
Wh has been invited?
现在完成时被动语态的特殊疑问句：特殊疑问词 + have / has been dne
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
改错：1. The building has set up fr several years. 2. The windws have been brke. 3. A terrible thing has been happened t her. 4. Jim has caught by the plice.
总结1. 现在完成时的被动语态中been 一定不能忘记。2. 注意break, catch, teach等动词的过去式和过去分词的不规则变化形式。3. 不及物动词（短语动词）没有被动语态，如：happen, take place, die, appear, break ut, belng t等。
The basic cmpsitin f 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
过去将来时的被动语态：shuld / wuld be dne
has / have been dne
In 1908, the Olympic Games was held here fr the first time.The Olympic Games has been held in many cuntries since the 1900s.He was invited t deliver a speech last week. He has been invited t deliver a speech t many cmpanies since he was famus.
 一般过去时的被动语态表示一个被动的动作发生在过去；  现在完成时的被动语态表示被动的动作或状态发生在过去，但一直持续到现在或者强调过去的动作对现在有影响。
He has been tld many times, and he finally understd it.Having been tld many times, he finally understd it. The pr have been ppressed and explited fr s lng. The pr, having been ppressed and explited fr s lng, tk up their guns and knives t kill rich nbles.
现在完成时的被动语态和现在分词完成被动式两种形式很像，但功能和意义不同。前者是谓语动词的时态和语态变化，后者是非谓语中现在分词的时态和语态变化。
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
Language pints
Language pints: 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
Language pints: Imprtant sentences (P30)
Lk at the way the paths have been swept. (P30)
还原：Lk at the way (in which) (that) (不填) the paths have been swept.
拓展翻译：我建议你改变一下和父母相处的方式。
I suggest that yu change the way (that) yu get alng with yur parents.