Unit3 The InternetDiscovering Useful Structures-（ppt课件）-2022新人教版（2019）《高中英语》必修第二册.pptx

1、Unit 3 The InternetDiscovering Useful StructuresLearning objectivesIn this class,you will1.identify and summarize the form and the functions of the present perfect passive voice;pare the present perfect passive voice with the active,and change the active form into the passive form;3.apply the presen

2、t perfect passive voice to interpret the newspaper headlines and create a poem.How has the Internet changed our life?Much has been written about the wonders of the World Wide Web.Peoples lives have been changed by online communities and social networks.1.Much has been written about the wonders of th

3、e World Wide Web.2.Peoples lives have been changed by online communities and social networks.1.Much has been written about the wonders of the World Wide Web.2.Peoples lives have been changed by online communities and social networks.1.Much has been written about the wonders of the World Wide Web.2.P

4、eoples lives have been changed by online communities and social networks.Activity 1:Underline more sentences in the same usage.Activity 1:Underline more sentences in the same usage.Para.3,P.28Many people have been helped by the club.Activity 1:Underline more sentences in the same usage.Para.5,P.28Ja

5、ns life has been greatly improved by the Internet.Many people have been helped by the club.Jans life has been greatly improved by the Internet.Activity 1:Underline more sentences in the same usage.Many people have been helped by the club.Jans life has been greatly improved by the Internet.Activity 1

6、:Underline more sentences in the same usage.1.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.The Present Perfect

7、 Passive Voice现在完成时被动语态现在完成时被动语态Underline and compare the different verb forms.Activehave/has+v-edPassivehave/has+been+v-edUnderline and compare the different verb forms.Activehave/has+v-edPassivehave/has+been+v-edWhat are the similarities and the differences in meaning and function between the acti

8、ve and the passive forms?ActivePassiveEXAMPLES The Internet has greatly improved Jans life.Jans life has been greatly improved by the Internet.People have written much about the wonders of the World Wide Web.MuchEXAMPLES The Internet has greatly improved Jans life.Jans life has been greatly improved

9、 by the Internet.People have written much about the wonders of the World Wide Web.Much has been written about the wonders of the World Wide Web.1.I have downloaded the software to help my phone battery last longer.2.Someone has lost an identity card.3.Have you confirmed the Wi-Fi password?4.Have you

10、 pressed the button yet to copy the file?5.Has anyone made a comment about the online database?Activity 2:Change the sentences into the present perfect passive voice.The software has been downloaded to help my phone battery last longer.Activity 2:Change the sentences into the present perfect passive

11、 voice.1.I have downloaded the software to help my phone battery last longer.2.Someone has lost an identity card.Activity 2:Change the sentences into the present perfect passive voice.An identity card has been lost.Has the Wi-Fi password been confirmed?Activity 2:Change the sentences into the presen

12、t perfect passive voice.3.Have you confirmed the Wi-Fi password?Has the button been pressed yet to copy the file?Activity 2:Change the sentences into the present perfect passive voice.4.Have you pressed the button yet to copy the file?Has a/any comment been made about the online database?Activity 2:

13、Change the sentences into the present perfect passive voice.5.Has anyone made a comment about the online database?What are the similarities and the differences in meaning and function between the active and the passive forms?ActivePassivemeaningconvey a similar meaningWhat are the similarities and t

14、he differences in meaning and function between the active and the passive forms?ActivePassivefunctionThe subject is doing an action to the object.The subject is having something done to it.What are the similarities and the differences in meaning and function between the active and the passive forms?

15、ActivePassiveIt is more direct and often used.The doer of an action is the subject.The doer of an action is unknown,not important,or preferred not named.functionSummaryThe Present Perfect Passive Voice1.The experiment has been done successfully.2.Toms novel has not been published.3.Has his bike been

16、 repaired?4.Who has been invited?have/has+been+v-ed The subject is having something done to it.The doer of an action is unknown,not important,or preferred not named.(+)(-)(?)(?)SummaryThe Present Perfect Passive Voice1.The experiment has been done successfully.2.Toms novel has not been published.3.H

17、as his bike been repaired?4.Who has been invited?have/has+been+v-ed The subject is having something done to it.The doer of an action is unknown,not important,or preferred not named.Understand the headline.EXAMPLEGovernment Done Much to Stop Cyberbullies EXAMPLEGovernment Done Much to Stop Cyberbulli

18、esMuch has been done by the government to stop cyberbullies.Understand the headline.The subject is having something done to it.EXAMPLEE-library on School Websitefor StudentsAn E-library for students has been set up on the school website.Understand the headline.The subject is having something done to

19、 it.set up1.Boys Video Streamed over Two Million Times2.5 Records Broken Today3.Intelligent Search Engine Designed for Teenagers4.Theft of Large Amount of Cash from Small Bank5.STUDENTS:30%Discount on SmartphonesActivity 3:Change the newspaper headlines into complete sentences as the example.1.Boys

20、Video Streamed over Two Million Times2.5 Records Broken Today3.Intelligent Search Engine Designed for Teenagers4.Theft of Large Amount of Cash from Small Bank5.STUDENTS:30%Discount on SmartphonesActivity 3:Change the newspaper headlines into complete sentences as the example.1.Boys Video Streamed ov

21、er Two Million Times A boys video has been streamed over two million times.Activity 3:Change the newspaper headlines into complete sentences as the example.2.5 Records Broken Today Five records have been broken today.Activity 3:Change the newspaper headlines into complete sentences as the example.3.

22、Intelligent Search Engine Designed for Teenagers An intelligent search engine has been designed for teenagers.Activity 3:Change the newspaper headlines into complete sentences as the example.4.Theft of Large Amount of Cash from Small Bank A large amount of cash has been stolen from a small bank.Acti

23、vity 3:Change the newspaper headlines into complete sentences as the example.(stolen)5.STUDENTS:30%Discount on Smartphones A 30%discount has been offered/given on smartphones for teenagers.Activity 3:Change the newspaper headlines into complete sentences as the example.(offered/given)The subject is

24、having something done to it.Read the poem.Activity 4:Write a similar poem.1.Think about a subject.2.List some actions/verbs connected to that subject.3.Write a sentence with the present perfect passive voice.4.Follow the same pattern or even create your own.beautiful&meaningfulLook at the way the pi

25、cture has been painted Listen to the way the song has been writtenLook at the way the film has been madeNow think about what you could create.Look at the way the needy have been helpedLook at the way the river has been cleanedLook at the way the tree has been plantedNow think how to make the world a

26、 better place.The sample poemReflecthave/has+been+v-ed The subject is having something done to it.The doer of an action is unknown,not important,or preferred not named.the present perfect passive voiceWHATHOWWHENHomeworkComplete the passage about the changes brought by the Internet with the correct forms of the words in brackets.P.34