【课件】Unit3TheInternetDiscoveringUsefulStructures课件-2021-2022学年高中英语人教版（2019）必修第二册.pptx

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1、 Discovering Useful Structures:Talk about something that has been done Unit 3 The Internet【版本：人教册别：必修二】contents Lead-in Language points Present perfect passive voice HomeworkIII Lead-inLook at the way your face has been washedLook at the way your teeth have been brushedLook at the way your shoes hav

2、e been cleaned Youd better do them again.Look at the way the flowers have been plantedLook at the way the grass has been cutLook at the way the paths have been sweptI hope that youll come here again.Appreciate a poemPresent perfect passive voice (have/has been done)Present perfect passive voice1.Muc

3、h has been written about the wonders of the World Wide Web.2.Peoples lives have been changed by online communities and social networks.3.Many people have been helped by the club.4.Jans life has been greatly improved by the Internet.Can you find the sentences with the present perfect passive voice in

4、 the passage on P28?Present perfect passive voice1.Much has been written about the wonders of the World Wide Web.2.Peoples lives have been changed by online communities and social networks.3.Many people have been helped by the club.4.Jans life has been greatly improved by the Internet.1.People have

5、written much about the wonders of the World Wide Web.2.Online communities and social networks have changed peoples lives.3.The club has helped many people.4.The Internet has greatly improved Jans life.Which group is better?Why?Compare and FindPresent perfect passive voice Change the sentences below

6、into the present perfect passive voice.1.I have downloaded the software to help my phone battery last longer.The software has been downloaded to help my phone battery last longer.2.Someone has lost an identity card.An identity card has been lost.3.Have you confirmed the Wi-Fi password?Has the Wi-Fi

7、password been confirmed?4.Have you pressed the button yet to copy the file?Has the button been pressed yet to copy the file?5.Has anyone made a comment about the online database?Has a/any comment been made about the online database?Present perfect passive voice思考：什么时候用被动思考：什么时候用被动语态语态?语语态态用用来来表表示示主主

8、语语与与谓谓语语之之间间的的关关系系，它它是是动动词词的的一一种种形形式式。英英语语中中有有两两种种语语态态：主主动动语语态态和和被被动动语语态态。主主动动语语态态表表示示主语是动作的执行者，而主语是动作的执行者，而被动语态被动语态表示主语是动作的承受者。表示主语是动作的承受者。不知道动作的执行者不知道动作的执行者没有必要指出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强调动作的承受者Present perfect passive voice1.Much has been written about the wonders of the World Wide Web.2.Peoples

9、 lives have been changed by online communities and social networks.3.Many people have been helped by the club.4.Jans life has been greatly improved by the Internet.5.The software has been downloaded to help my phone battery last longer.6.Has the Wi-Fi password been confirmed?7.Has the button been pr

10、essed yet to copy the file?8.An identity card has been lost.思考：现在完成时的被动语态有什么意义？Present perfect passive voice主语和谓语是主语和谓语是被动被动的关系：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 动作已经完成动作已经完成，强调对现在造成的影响或，强调对现在造成的影响或结果结果例句现在完成时被动语态句式The research has been done successfully.The authors new story has

11、not been published.Has his washing machine been repaired?Who has been invited?肯定式肯定式：have/has been done 否定否定式式：have/has not been done一般一般疑问句：把疑问句：把have/has提到主语的前面提到主语的前面 特殊特殊疑问句疑问句：特殊特殊疑问词疑问词 +have/has been donePresent perfect passive voice 1.Both learning sites _(visit)by over 10,000 people since l

12、ast year.2.Great changes _(take place)in my hometown and a lot of factories _(set up).3.This keyboard _(not use)for a long time.即学即练have been visitedhave taken placehave been set uphas not been usedPresent perfect passive voice 4.In the past few years,I _(inspire)to buy e-books instead of paper book

13、s.5.Till now,three films _(show)in that small village this month.have been inspiredhave been shown即学即练Present perfect passive voice1.The building has set up for several years.2.The windows have been broke.3.A terrible thing has been happened to her.4.Jim has caught by the police.been brokenbeen Pres

14、ent perfect passive voice改错：即学即练1.现在完成时的被动语态中现在完成时的被动语态中been 一定不能忘记。一定不能忘记。2.注意注意break,catch,teach等动词的过去式和过去等动词的过去式和过去分词分词 的的不规则变化形式不规则变化形式。3.不及物动词不及物动词（短语动词）没有被动语态，如：（短语动词）没有被动语态，如：happen,take place,die,appear,break out,belong to等。等。Present perfect passive voice总结时态一般时进行时完成时现在时现在时过去时过去时将来时将来时am/is/

15、are doneam/is/are being done was/were doneshall/will be donewas/were being donehad been doneshall/will have been donehas/have been doneRevision of the Passive Voice The basic composition of passive voice1.In 1908,the Olympic Games was held here for the first time.2.The Olympic Games has been held in

16、 many countries since the 1900s.一般过去时被动一般过去时被动语态语态现在完成现在完成时被动时被动语态语态Present perfect passive voice拓展与补充13.He was invited to deliver a speech last week.4.He has been invited to deliver a speech to many companies since he was famous.一般过去时的被动语态一般过去时的被动语态现在完成时的被动语态现在完成时的被动语态Present perfect passive voice拓

17、展与补充1 一般过去时一般过去时的被动语态表示一个被动的动作的被动语态表示一个被动的动作发生在过去发生在过去；现在完成时现在完成时的被动语态表示被动的动作或状态的被动语态表示被动的动作或状态发生在过发生在过去去，但，但一直持续到现在或者强调过去的动作对现在有影响一直持续到现在或者强调过去的动作对现在有影响。Present perfect passive voice总结1.He has been told many times,and he finally understood it.2.Having been told many times,he finally understood it.现

18、在完成时的被动语态现在完成时的被动语态现在分词完成被动式现在分词完成被动式Present perfect passive voice拓展与补充23.The poor have been oppressed and exploited for so long.4.The poor,having been oppressed and exploited for so long,took up their guns and knives to kill rich nobles.现在完成时的被动语态现在完成时的被动语态现在分词完成被动式现在分词完成被动式Present perfect passive

19、voice拓展与补充2 现在现在完成时的被动语态和现在分词完成被动式两种形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。前者是式很像，但功能和意义不同。前者是谓语动词谓语动词的时态和语的时态和语态变化，后者态变化，后者是非谓语是非谓语中现在分词的时态和语态变化。中现在分词的时态和语态变化。Present perfect passive voice总结1.Weve done a lot of work on it,but we _ _(finish)yet.2.Tom _(work)in the library every night over the last three

20、 months.3.More public transport _(build)in China,making it easier for people to travel.have nothas been workinghas been builtPresent perfect passive voice高考链接finished4.Progress _(be)so far very good and we are sure that the work will be finished on time.5._(eat)at the cafeteria before,Tina didnt wan

21、t to eat there again.6.No agreement _(reach)yesterday after many rounds of talks.has been Having eaten Present perfect passive voice高考链接was reached7.Despite the previous rounds of talks,no agreement _ _(reach)so far by the two sides.8.I _(show)around the Water Cube for many times since it was built.

22、9._(show)around the Water Cube,we were then taken to see the Birds Nest for the 2008 Olympic Games.reachedhave been shown Having been shown Present perfect passive voice高考链接has beenOur art festival _(hold)next month.Recently,many English plays _(try)and we finally choose a short English play.Since t

23、hen,we _(practice)these days._(know)that you have much experience in English plays,we hope you can give us some advice on it._(tell)the effective way to practice and perform,we still need your further guidance.We _(practice)at the school hall this Thursday afternoon.We _(appreciate)it very much if y

24、ou could give us some suggestions.will be heldhave been triedhave been practicingKnowingHaving been toldare going to practicewould appreciatePresent perfect passive voice巩固提高Language points Important phrases (P30)1 23an identity cardconfirm the passwordcopy the file一张身份证一张身份证确认密码确认密码 /口令口令复制文件复制文件Important sentences(P30)Look at the way the paths have been swept.还原：还原：Look at the way(in which)(that)(省略)the paths have been swept.l我我建议你改变一下和父母相处的建议你改变一下和父母相处的方式。（翻译方式。（翻译）I suggest that you change the way(that)you get along with your parents.HomeworkComplete the exercises on P74 P75.