Unit 3 The Internet Discovering Useful Structures ppt课件-（2022新）高中英语人教版(2019)必修第二册.pptx

1、高中英语 必修第二册 UNIT 3 THE INTERNET UNIT 3 THE INTERNET Discovering Useful StructuresGrammar单击此处编辑母版标题样式2022-8-163Read the pairs of sentences.Underline and compare the different verb forms.Activity 1Talk about something that has been doneJans life has been greatly improved by the Internet.Much has been w

2、ritten about the wonders of the World Wide Web.The Internet has greatly improved Jans life.People have written much about the wonders of the World Wide Web.How do we form the present perfect passive voice?Fill in the blank.have/has been+v-ed单击此处编辑母版标题样式2022-8-164Change the sentences into the present

3、 perfect passive voice.Activity 21I have downloaded the software to help my phone battery last longer.2Someone has lost an identity card.3Have you confirmed the Wi-Fi password?4Have you pressed the button yet to copy the file?5Has anyone made a comment about the online database?EXAMPLE Theyve built

4、a kind of new PC with more functions.A kind of new PC has been built with more functions.The software has been downloaded to help my phone battery last longer.An identity 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

5、made about the online database?单击此处编辑母版标题样式2022-8-165Find out the differences in meaning and function between the active and passive forms.As we can see in the pairs of sentences，the object（主语）in an active sentence becomes the subject（宾语）in a passive sentence.Both sentence types convey a similar mea

6、ning，but they are slightly different.For example，in an active sentence，the subject is doing an action to an object，while in a passive sentence，the subject is having something done to it，and the doer of that action is not necessarily mentioned.Active sentences are used often，as they are more direct.P

7、assive sentences are often used when the doer of an action is unknown，not important，or preferred not named.单击此处编辑母版标题样式2022-8-166Read the poem.Then think of your own situation and write a similar poem.Activity 3Look at the way the picture has been paintedListen to the way the song has been writtenLo

8、ok at the way the film has been madeNow think about what you could create.Look at the way the needy（贫困的人）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 better place.提示：该诗歌中几乎每句都有“has/have been+过去分词”，构成现在完成时的被动语态单击此

9、处编辑母版标题样式2022-8-167Activity 41 A:Why cant I access my account?B:_ your personal information_（update)?2 Both learning sites_（visit)by over 10,000 people since last year.3 This keyboard_（not use)for a long time.4 Can you tell me what_（do)to bridge the digital divide?5 In the past year I_（inspire)to bu

10、y e-books instead of paper books.6 A:Where can I read those comments?B:Online.They_（post)already.7 It seems that more health problems_（cause)by mobile phones.8 That app_（delete)from my smartphone already.Complete the sentences with the present perfect passive voice of the given verbs.(WORKBOOK P73 E

11、X.1)Hasbeen updatedhave been visitedhas not been usedhas been donehave been inspiredhave been postedhave been causedhas been deleted单击此处编辑母版标题样式2022-8-168Activity 5Find and correct the mistake in each sentence.(WORKBOOK P74 EX.2)EXAMPLEThis app was used several times since I downloaded it.1 How much

12、 money has spent on the earthquake recovery?2 The girl is really upset because her new bicycle has stolen.3 These old houses have been built in the 18th century.4 Its a pity that the letter has never sent to his father.5 Little had been seen of them since they moved into the house down the street.ha

13、s beenhas been spenthas been stolenwere builthas never been senthas单击此处编辑母版标题样式2022-8-169EXAMPLEE-library on School Websitefor Students An e-library for students has been set up on the school website.1 Boys Video Streamed over Two Million Times2 5 Records Broken Today3 Intelligent Search Engine Desi

14、gned for Teenagers4 Theft of Large Amount of Cash from Small Bank5 STUDENTS:30%Discount on Smartphones6 Government Done Much to Stop CyberbulliesRead the newspaper headlines.Change them into complete sentences as the example.Activity 6(WORKBOOK P75 EX.3)A boys video has been streamed over two millio

15、n times.Five records have been broken today.An intelligent search engine has been designed for teenagers.A large amount of cash has been stolen from a small bank.A 30%discount has been offered/given on smartphones to students.Much has been done by the government to stop cyberbullies.单击此处编辑母版标题样式2022

16、-8-1610Notice to parentsDear Parents,We hope you will welcome this news.Almost 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.Our plan _（support)with technical equipment and advice which_（provide

17、)by the City Information Technology Centre.Every teacher_（provide)with a laptop since the beginning of this term.More recently,most of our courses _（teach)using computers.We _（help)in our teaching by a lot of information from the Internet.Also,a new computer room _(set up)in our school.We hope you w

18、ill be happy with this exciting new development in our school.Complete the notice with the correct forms of the verbs in brackets.Activity 7(WORKBOOK P75 EX.4)have been givenhas been madehas been supportedhas been providedhas been providedhave been taughthave been helpedhas been set up高中英语 必修第二册 UNI

19、T 3 THE INTERNET 单元语法单元语法 现在完成时的被动语态现在完成时的被动语态1 构成构成肯定式：have/has+been done否定式：have/has not+been done一般疑问式：Have/Has+主语+been done?特殊疑问式：疑问词+have/has（+主语）+been done?A lot of factories have been set up since last year.自从去年以来，已经建立了许多工厂。I cant see any coffee in this cupboard.Has it all been finished?我看不见这

20、碗柜里有咖啡。都喝完了吗？附：单元语法精讲精练附：单元语法精讲精练高中英语 必修第二册 UNIT 3 THE INTERNET2 用法用法（1）表示一个被动的动作在说话之前已完成，强调过去的动作对现在造成的影响或结果，通常与 already，yet，just，never，recently 等副词连用。I got caught in the rain and my suit has been ruined.我被雨淋了，衣服全毁了。His brother has been fired by the company recently.他弟弟最近被公司解雇了。（2）表示一个被动的动作或状态从过去开始一

21、直持续到现在，常与for 或 since 引出的时间状语连用，或用于 how long 引出的句子中。A great many machines have already been produced by the factory since the technological revolution.自从技术革命以来，这家工厂已经生产了许多机器。（3）用在时间或条件状语从句中，表示将来已完成的被动动作，即用现在完成时的被动语态代替将来完成时的被动语态。She will leave for the cinema as soon as the application form has been co

22、mpleted.申请表一填好，她就去看电影。高中英语 必修第二册 UNIT 3 THE INTERNET【学法点拨学法点拨】常与现在完成时连用的时间状语：already 已经 yet 已经recently/lately 最近 since then 从那时起ever since 自那以来 ever 曾经so far 迄今为止 for a long time 很长一段时间by now 到现在为止 in recent years 在最近几年里in/during/over the past/last few years 在过去的几年里Their new cars have been advertise

23、d on the Internet for a long time.他们的新车在网上做广告已经很长时间了。高中英语 必修第二册 UNIT 3 THE INTERNET3 注意事项注意事项（1）与一般过去时的被动语态的区别 动作发生的时间 对现在有无影响 一般过去时的被动语态 过去 无 现在完成时的被动语态 过去 有（2）borrow，begin，start，buy，marry，open，join 等非延续性动词的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，需要改变动词或时态。这本书借了一周了。The book has been borrowed for a week.

24、（）The book has been kept for a week.（）这个工程已经开始多久了？How long has this project been started?（）How long ago was this project started?（）高中英语 必修第二册 UNIT 3 THE INTERNET【学法点拨学法点拨】非延续性动词的否定式可表示动作的持续过程，具有持续性，因而可与 since 或 for 引出的时间状语连用。（3）带有双宾语的动词，如 give，send，bring，take，teach，show，tell，make，sing，write，sell，buy

25、，lend，offer，hand，pass，get 等，变为被动语态时，一般是把指人的间接宾语变为主语。如果将直接宾语变为被动句的主语，间接宾语前要加 to 或 for。We have been told the time of the lecture.我们已被告知讲座的时间。The traffic rules have been taught to him many times，but he still ignored them.交通规则已经教过他很多次了，但他仍然无视。（4）带有复合宾语（宾语+宾语补足语）的动词变为被动语态时，只能将宾语变为主语，原来的宾语补足语保持不动。主动语态中不带

26、to的不定式作宾补，在被动语态中要加上 to。The workers have been made to work a whole day without stop.工人们被迫不停地干了一整天。高中英语 必修第二册 UNIT 3 THE INTERNET（5）短语动词变为被动语态时，要注意保持短语动词的完整性，不可漏掉动词后面原有的介词或副词。此类短语动词有：动词+介词refer to，look after，call on，rely on，look for，look at，listen to，dream of，meet with，laugh at，result in，wait for，deal

27、 with，operate onThese cases have been referred to in the experts report.专家的报告中提到了这些案例。动词+名词+介词pay attention to，make use of，take part in，keep an eye on，make fun of，catch sight of，take a note of，take care ofThe poor boy has been made fun of in the public for many times.这个可怜的男孩在公共场合被取笑了很多次。动词+副词turn on

28、，turn off，carry on，carry out，think over，make up，set up，put down，hand in，point out，call upSeveral specialized hospitals have been set up to help cure the patients of the terrible disease.已经建立了几家专科医院来帮助治疗这种可怕疾病的病人。高中英语 必修第二册 UNIT 3 THE INTERNET.单句语法填空单句语法填空(1)Their new house （decorate）for two months a

29、nd they will settle in it in the near future.(2)Hundreds of excellent athletes （select）from millions of people all over the country in the past two months.(3)A new library and a gym in our school （set）up so far and they will be put into use very soon.(4)Great changes （take）place in my hometown and a

30、 lot of factories _ （set）up in the past ten years.(5)Every possible means （try）to save the wounded soldier up to now.(6)How many suggestions （give）to you so far?(7)All the preparations for the task （make），and were ready to start.(8)In the last few years thousands of films （produce）all over the world

31、.(9)Despite the previous rounds of talks,no agreement (reach)so far by the two sides.(10)We cant go on with the experiment because the computer （not repair）.has been decorated have been selected have been set have taken have been set has been tried have been given have been made have been produced h

32、as been reached hasnt been repaired高中英语 必修第二册 UNIT 3 THE INTERNET.将下列句子改为被动语态将下列句子改为被动语态（1）They have just connected the printer to the computer._（2）We have planted many trees on the hill in the last five years._（3）Tom hasnt sold out all the magazines._（4）Have you found ways to make waste water clean

33、?_（5）She has already returned this book to the library._The printer has just been connected to the computer（by them）.Many trees have been planted on the hill in the last five years（by us）.All the magazines have not been sold out（by Tom）.Have ways been found to make waste water clean（by you）?This boo

34、k has already been returned to the library（by her）.高中英语 必修第二册 UNIT 3 THE INTERNET(6)He has sent me an e-mail._ _(7)We have seen him lie on the ground._(8)Jane has referred to the book._(9)Tom has paid much attention to his handwriting._ _ I have been sent an e-mail.An e-mail has been sent to me.He h

35、as been seen to lie on the ground.The book has been referred to（by Jane）.Much attention has been paid to Toms handwriting.Toms handwriting has been paid much attention to.高中英语 必修第二册 UNIT 3 THE INTERNET.完成句子完成句子（1）The boys （已经被多次告知）not to swim in that lake，but it doesnt make any difference.（2）With th

36、e help of high technology，more and more new substances_ （被发现）in the past few years.（3）When and where to go for the on-salary holiday_（没有确定）yet.（4）Though we dont know what was discussed，yet we can feel the topic _ （已经被改变了）.（5）He （已被挑选出来）to take part in the sports meeting.（6）The ink （还没有去掉）the clothes

37、.（7）Financial problems of the company（已被讨论了）for nearly two hours.have been told many timeshave been discoveredhas not been decidedhas been changedhas been selectedhas not been removed from have been discussedLanguage points高中英语 必修第二册 UNIT 3 THE INTERNET核心词汇教材原句教材原句p.30 Theyve built a kind of new PC

38、with more functions.他们制造了一种功能更多的新电脑。他们制造了一种功能更多的新电脑。1 function n.&vi.（1）n.C，Un.功能；作用；机能搭配搭配：perform a function 发挥功能；履行职责the function of the heart 心脏的功能In your new job you will perform a variety of functions.在新的工作岗位上，你将要履行许多不同的职责。（2）vi.起作用；正常工作；运转搭配搭配 function as 起作用，具有功能 function well/normally 运转良好/

39、正常The sofa also functions as a bed.这沙发还可当床用。Flights in and out of Taipei are functioning normally again.进出台北的航班又恢复正常了。题组练领悟方法高中英语 必修第二册 UNIT 3 THE INTERNET单句语法填空单句语法填空（1）Compared to the traditional ones，they have three new unique（function）.完成句子完成句子（2）Although the electricity was cut off，the hospital

40、 continued to （正常 运转）.（3）To put it another way，his advice（起作用）part of the solution.functionsfunction normallyfunctions as高中英语 必修第二册 UNIT 3 THE INTERNET教材原句教材原句p.30 Have you conformed the Wi-Fi password?你确认你确认Wi-Fi 密码了吗？密码了吗？2 confirm vt.确认；使确信；批准confirm that/wh-.证实It has been confirmed that.已经证实conf

41、irm sb.in sth.使某人确信某事confirm sb.as sth.任命某人担任某职位What you have said confirms my prediction.你的话证实了我的预测。It has been confirmed that people are more likely to get ill under pressure.已经证实，人们在压力下更容易生病。The latest evidence confirmed us in his idea.最新的证据证实了他的观点。He was confirmed as captain for the rest of the

42、season.他被正式任命在这个赛季剩下的时间内担任队长。【词语辨析词语辨析】confirm与与 prove（1）confirm 和prove 均可作及物动词，后接宾语；（2）prove 还可作连系动词用，意为“证明是，被发现是”，后接形容词或名词作表语，常用固定搭配是prove（to be）+adj./n.。搭配搭配高中英语 必修第二册 UNIT 3 THE INTERNET单句语法填空单句语法填空（1）His words confirmed me my belief that our cause was right.（2）The President confirmed him Secret

43、ary of State.（3）It （confirm）by experience that this is the right approach to the command of grammar.（4）The official（confirm）that the paintings were originals and worth as much as$50 million.完成句子完成句子（5）（已经证实）it was the drivers carelessness that resulted in the terrible accident.（6）We （证实了那则报道）.in asi

44、s confirmedconfirmedIt has been confirmed thathave confirmed the report高中英语 必修第二册 UNIT 3 THE INTERNET教材原句教材原句p.30Have you pressed the button yet to copy the file?你按下按钮复制文件了吗？你按下按钮复制文件了吗？3 press vt.按；压；敦促搭配搭配 press.against/on.把按在上 press a button/switch/key 按下按钮开关；按键The shoes press against my toes.这双鞋

45、压着我的脚趾。Press the button，then the machine will work.按下电钮，机器就能转动了。【词语积累词语积累】pressure n.压力；劝说，强迫under pressure 处于压力下relieve/reduce pressure 减压put pressure on sb.向某人施压blood pressure 血压高中英语 必修第二册 UNIT 3 THE INTERNET单句语法填空单句语法填空（1）In recent years，stress has been regarded as a cause of a whole range of medical problems，from high blood（press）to mental illness.（2）Michael took a few steps backwards and pressed his back the wall.完成句子完成句子（3）Im （处于压力下）from my parents to become a teacher.（4）The company may have （对施加压力）her to agree.pressure against/on under pressure put pressure onTHE END