Unit 3 Discovering Useful Structures 现在完成时被动语态（ppt课件）-2022新人教版（2019）《高中英语》必修第二册.pptx

1、第二届高中、中职学科教师微课大赛学科：英语（人教版）知识点：现在完成时被动语态Book 2 Unit 3 Discovering Useful StructuresThe Present Perfect Passive Voice第二届高中、中职学科教师微课大赛Learning object:1.To learn the structure of the present perfect passive voice.2.To learn the usage of the present perfect passive voice.第二届高中、中职学科教师微课大赛Over time the com

2、puter has changed quite a lot.By the time 1940s,the computer has been made as large as a room.Since the 1970s,it has been used in offices and homes.have done(现在完成时）现在完成时）have been done(现在完成时的被动语态）现在完成时的被动语态）第二届高中、中职学科教师微课大赛Can you find more examples of present perfect passive voice on P28?1.Much _(w

3、rite)about the wonders of World Wide Web.2.Peoples lives _（change）by online communities and social networks.3.Many people _ (help)by the club.4.Jans life _(improve)by the Internet.has/have+been done has been greatly improvedhave been helpedhas been changedhas been written 第二届高中、中职学科教师微课大赛1.Much _(wr

4、ite)about the wonders of World Wide Web.2.Peoples lives _（change）by online communities and social networks.3.Since the 1970s,it _ (use)in offices and homes.Can you find the differences between the following two groups?1.It _ smaller and smaller.2.The computer _(buy)my mother.3).A new road _(build)ne

5、xt year.4).The problem _(discuss)now.has/have+been+done be+done 1).动作动作已经完成已经完成，强调对现在造成的影响或结果，强调对现在造成的影响或结果2).主语与谓语动词之间的主语与谓语动词之间的被动关系被动关系只只表示主语与谓语动词之间的表示主语与谓语动词之间的被动关系被动关系have been usedhas been changedhas been written will be builtis broughtwas madeis being discussed第二届高中、中职学科教师微课大赛1.Much _(write)a

6、bout the wonders of World Wide Web.2.Peoples lives _（change）by online communities and social networks.3.Many people _(help)by the club.Can you find the differences between the following two groups？1.There are countless articles telling us how the Internet _(make)our lives more convenient.2.But the I

7、nternet _(do)much more for people than simply make life more convenient.3.He _(live)here since he came here.has/have+been+done has/have+been+done 1).动作动作已经完成已经完成，强调对现在造成的影响，强调对现在造成的影响或结果或结果2).主语与谓语动词之间的主语与谓语动词之间的被动关系被动关系has/have+done has/have+done have been helpedhas been changedhas been written has

8、 livedhas donehas made1).动作动作已经完成已经完成，强调对现在造成的影响，强调对现在造成的影响或结果或结果2).主语与谓语动词之间的主语与谓语动词之间的主动关系主动关系第二届高中、中职学科教师微课大赛SUMMMARY现在完成时现在完成时的被动语态的被动语态含义含义结构结构1.1.表示过去发生的动作强调对现在的影响；表示过去发生的动作强调对现在的影响；2.2.动作从过去某一时间一直持续到现在动作从过去某一时间一直持续到现在。have/has been done用法用法主语和谓语之间存在被动关系主语和谓语之间存在被动关系第二届高中、中职学科教师微课大赛We are tryi

9、ng to make our hometown a civilized city.Great changes have taken place in Shiyan.第二届高中、中职学科教师微课大赛We have set up a new overpass to make it more convenient to cross the street.A new overpass has been set up to make it more convenient to cross the street.第二届高中、中职学科教师微课大赛We have planted more trees and

10、widened the street.More trees have been planted and the street has been widened.第二届高中、中职学科教师微课大赛We have decorated the bus station with new bulletin board and seats.The bus station has been decorated with new bulletin board and seats.第二届高中、中职学科教师微课大赛We have adopted garbage sorting in every neighborho

11、od.Garbage sorting has been adopted in every neighborhood.beforeafter第二届高中、中职学科教师微课大赛The outside walls have been painted.New sports equipment has been fixed.第二届高中、中职学科教师微课大赛第二届高中、中职学科教师微课大赛Task 1 Writing假定你是十堰市一中高一（28）班班长李华，你的美国笔友Peter在互联网上了解到十堰正在创建全国文明城市，他对此非常感兴趣，请你用英语写一封邮件，告诉他十堰创文以来取得的重大变化。第二届高中、中

12、职学科教师微课大赛Task 2 Blank filling Great changes _(take)place in my school in the past few years.The equipment(设施)_(improve)so far.The roads _(widen).A new library and a stadium _(build).Classrooms _(install)with e-boards.Besides,more attention _ (give)to the environment protection,so many trees and flow

13、ers _(plant).Additionally,almost 100 computers _(donate)to us by a local computer company since the end of last year.Every student _ (take)care of by the teachers.第二届高中、中职学科教师微课大赛Task 3 Appreciate a poemIt delights my parents that my teeth has been brushed,It delights my parents that my clothes has

14、been washed,It delights my parents that my room has been cleaned,They are proud that I have become more independent.It satisfies my teacher that my homework has been finished,It satisfies my teacher that my mistakes have been corrected,It satisfies my teacher that my essay has been revised,He is happy that I have made progress day by day.第二届高中、中职学科教师微课大赛 After a thing has been done,everybody is ready to declare it easy.But before it has been done,it is called impossible.