Unit 3 Discovering Useful Structures (ppt课件)-2023新人教版(2019)《高中英语》必修第二册.pptx

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1、lUnit 3 The InternetlPeriod 3lDiscovering Useful StructuresLead-inVideoPassive Voice 1.Shes been exposed.她暴露了。2.Hes been forgotten.他被人遗忘了。3.Hes been disconnected.他连接断开了。4.Hes been quarantined.他已经被隔离了。5.Shes been well educated.她有良好的教养。6.Ive been wounded Ive been healed.我曾伤痕累累 伤口皆已痊愈。7.Ive been arrest

2、ed.我被逮捕了。8.Hes been poisoned.他被下毒了。9.You have been inoculated?你接种疫苗了吧。10.I have been reliably formed that I dont have one.早有可靠之人说过,我没有心。Lead inJans life has been greatly improved by the Internet.Much has been written about the wonders of the World Wide Web.Read the pairs of sentences.Underline and c

3、ompare the different verb forms.The Internet has greatly improved Jans life.People have written much about the wonders of the World Wide Web.The structure of present perfect passive voice以 ask 为例肯定式否定式I haveHe/She/It hasWe haveYou haveThey havebeen askedI haveHe/She/It hasWe haveYou haveThey havenot

4、 been askedPresentation Change the sentences into the present perfect passive voice.Theyve built a kind of new PC with more functions.A kind of new PC has been built with more functions.Example:1.I have downloaded the software to help my phone battery last longer.2.Someone has lost an identity card.

5、The software has been downloaded to help my phone battery last longer.An identity card has been lost.3.Have you confirmed the Wi-Fi password?4.Have you pressed the button yet to copy the file?5.Has anyone made a comment about the online database?Has the Wi-Fi password been confirmed?Has the button b

6、een pressed yet to copy the file?Has a/any comment been made about the online database?常与现在完成时连用的时间状语:already已经yetrecently/latelysince/since thenever/ever sinceso farfor+一段时间一段时间by now/up till nowin recent yearsin/during/over the past/last years最近最近自从自从/自那时起自那时起自那以来自那以来到目前为止到目前为止多久以来多久以来到目前为止到目前为止在最

7、近几年在最近几年在过去的几年里在过去的几年里Presentation1.Its the first time that the old computer (check)since I bought it.2.When we are going to have an English test (decide)yet.3.More than 100 famous films (show)in the city since July.4.Three new schools (open)in our city in the past five years.5.Great changes (take)p

8、lace in my hometown and you can see that a lot of factories (set)up.practicehas been checkedhasnt been decidedhave been showedhave been openedhave takenhave been set Complete the notice with the correct forms of the verbs in brackets.Notice to parentsDear Parents,We hope you will welcome this news.A

9、lmost 100 computers _(give)to us by a local computer company since the end of last year.A decision _(make)to begin a computer teaching experiment at our school.have been givenhas been madeOur plan _(support)with technical equipment and advice which _(provide)by the City Information Technology Centre

10、.Every teacher _(provide)with a laptop since the beginning of this term.More recently,most of our courses _(teach)using computers.has been supportedhas been providedhas been providedhave been taughtWe _(help)in our teaching by a lot of information from the Internet.Also,a new computer room _(set up)

11、in our school.We hope you will be happy with this exciting new development in our school.No.8 Senior High Schoolhave been helpedhas been set upRead the poem.Look at the way your face has been washed Look at the way your teeth have been brushed Look at the way your shoes have been cleaned Youd better

12、 do them again.productionLook at the way the flowers have been planted Look at the way the grass has been cutLook at the way the paths have been swept I hope that youll come here again.Think of your own situation and write a similar poem.Pair workShare your poem with your partner!Pair workLook at th

13、e way the picture has been painted Listen to the way the song has been written Look at the way the film has been made Now think about what you could create.Sample:Look at the way the needy have been helped Look at the way the river has been cleaned Look at the way the tree has been planted Now think how to make the world a better place.HomeworkFinish the exercises on your exercise book.

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