（2019版）新人教版选择性必修第二册Unit 3The InternetDiscovering Useful Structures ppt课件.pptx

1、Discovering Useful Structures-Talk about something that has been doneLearning goaLsKnowledge objectives:Enable the students focus on structures.Skill objectives: Help the students get insight into passive voice.Emotional objectives:Improve students sense of sharing something that has been done.Think

2、ing quality objectives:Inspire the students to write a poem.review遵循严格的语法规则_仔细察看； 仔细琢磨；经历；用完，耗尽_完成艰难（或令人不快）的事_有机会做._陪伴某人_不再_既然_失业_为.付费；为.付出代价_离职_艰难时刻，困难时期_排队_ follow strict grammar rules go through sth go through with sth have access to sth keep sb companyno longernow that.out of work pay for sthqui

3、t ones job tough timeswait in line Lead in现在完成时的被动语态grammar1.现在完成时的被动语态的肯定式为“”。lThe experiment has been done successfully.l这项实验做得很成功。2.现在完成时的被动语态的否定式为“”。lThe experiment hasnt been done successfully.l这项实验做得不成功。grammar3.现在完成时的被动语态的一般疑问句须。lHas the experiment been done successfully?l这项实验做得成功吗?4.现在完成时的被动

4、语态的特殊疑问句的句式为“”。lWho has been invited? 谁受到了邀请?grammar1.(这个被动的动作发生在过去，但对现在造成了影响)。The dirty clothes all have been washed.这些脏衣服都已经被洗了。Toms novel has not been published.汤姆的小说还没有被出版。2.Well start as soon as the work has been finished.这项工作一被完成我们就动身。grammar3. He has been told about it for many times.有人告诉他这事很

5、多次了。 Three thousand English words have been learned by the students since 2019.从2019年起，这些学生已经学习了3000个英语单词。 How long has the machine been used?这台机器被使用多久了?grammar在使用现在完成时的被动语态时要注意以下四点:1.过去分词前的助动词是have/has been，不可漏掉其中的任何一个。误 Many new buildings been built since 1980.正 Many new buildings have been built

6、since 1980.析谓语部分结构不全，时态部分不完整。2.有些词无被动形式，应用主动形式表示被动含义。误 Something bad has been happened to him. 正 Something bad has happened to him.析被动语态误用。happen,take place 为不及物动词(组)，没有被动语态。注意事项grammar误 The door has been opened by itself.正 The door has opened by itself.析有些动词，如open，break，drop等既可以作及物动词，又可以作不及物动词，若不强调

7、谁是动作的发出者，我们通常用主动语态。byitself的意思是“自动地”，因此，此句不可用被动语态。误I have introduced to Mr Smith.正 I have been introduced to Mr Smith(by Mr Wang)析introduce为及物动词，I是introduce这一动作的承受者，应用被动语态。grammar3.由 finish,buy, start, begin, post, return, borrow, join, marry，open等短暂性动词构成的现在完成时的被动语态不能与表示一段时间的状语如“for+一段时间”“since+时间点”

8、，以及howlong等连用，若表达“这本书买了多久了”应把短暂性动词改为延续性动词。误 How long has this book been bought?正 How long has this book been had?4.短语动词是一个不可分割的整体，在被动结构中要保持完整性，不可省略短语动词中的介词或副词。The orphan has been well looked after. 这个孤儿一直受到很好的照顾。grammarThe software has been downloaded to help my phone battery last longer.An identity

9、 card has been lost.Has the Wi-Fi password been confirmed?Has the button been pressed yet to copy the file?Has a/any comment been made about the online database?Language pointsLanguage pointsfunction n.作用;功能;机能 perform/fulfil a function 发挥功能;履行职责function as 起的作用;具有功能(不能用于被动语态)身份证confirm vt.(尤指提供证据来)

10、证实，证明 vt.批准(职位、协议等)，认可be confirmed.被证实/被证明It is confirmed that.据证实be confirmed(as.)(的身份/职位/协议)被认可grammarpress vt.(被)压,挤,推,施加压力vt.按,压(使启动)vt.催促;敦促;逼迫pressagainst把贴在press a button/switch按下按钮/开关press sb.to do sth.催促/逼迫某人做某事press conference记者招待会comment 评论vt.评论,评注,批评;提意见,发表意见n.议论;评论;意见,见解make a comment about/on/uponNo comment!无可奉告! comment on/upon评论comment+that从句 发表意见说grammarsummary肯定结构have/hasbeen done否定结构have/hasnotnotbeen done一般疑问结构have/has主语主语been done特殊疑问结构特殊疑问词特殊疑问词have/has主语been donehomeworkThank you for your listenning!Mary