人教高中英语Unit 3 Period 3 Discovering Useful Structures课件.ppt

Unit 3The InternetPeriod 3Discovering Useful Structures人教版（2019）必修二Lead-inVideoPassive Voice SongLead-inCan you find more sentences in passive voice in this module?New wordsbatteryWi-FiNew wordsbuttonfileNew wordsTheyve built a kind of new PC with more functions.function asNew wordsHave you confirmed the Wi-Fi password?confirm sb in sthNew wordsHave you pressed the button yet to copy the file?pressure n.Lets playLets play1.Before use,the _ must be charged.2.We have developed a new type of software with many _(function).3.I called the airport _(confirm)my flight reservation a week before I left for Beijing.4.In recent years，stress has been regarded as a cause of a whole range of medical problems，from high blood _(press)to mental illness.2016上海卷上海卷5.I selected a _(文文件件)and _(按按)the delete key.batteryfunction to confirmpressurefilepressedJans life has been greatly improved by the Internet.Much has been written about the wonders of the World Wide Web.Lets learnRead the pairs of sentences.Underline and compare the different verb forms.The Internet has greatly improved Jans life.People have written much about the wonders of the World Wide Web.Verb formHow do we from the present perfect passive voice?Fill the blank.Activehave/has+v-edPassive_have/has been+v-edChange 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.EXAMPLEI have downloaded the software to help my phone battery last longer.Someone has lost an identity card.The software has been downloaded to help my phone battery last longer.An identity card has been lost.Have you confirmed the Wi-Fi password?Have you pressed the button yet to copy the file?Has anyone made a comment about the online database?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?Find out the differences in meaning and function between the active and passive forms.Read 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 do them again.Look 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 workVideoWhen You Are OldThe present perfect passive voice以以 ask 为例为例肯定式肯定式否定式否定式I haveHe/She/It hasWe haveYou haveThey havebeen askedI haveHe/She/It hasWe haveYou haveThey havenot been asked以以 ask 为例为例疑问式疑问式Have IHas he/she/it Have weHave youHave theybeen asked?短语动词的被动语态短语动词的被动语态“及物动词及物动词+副词副词”“及物动词及物动词+介词介词”以及以及“及物动词及物动词+副词副词+介词介词”构成的短语动词可用于被动结构。构成的短语动词可用于被动结构。At last they put out the fire.At last the fire was put out.Have you sent for a doctor?Has the doctor been sent for?My classmates caught up with me in this exam.I was caught up with by my classmates in this exam.短语动词的被动语态短语动词的被动语态许多许多“不及物动词不及物动词+介词介词”以及以及“不及物动词不及物动词+副词副词+介词介词”构成的短构成的短语动词相当于及物动词，也可以有宾语，也可用于被动结构。语动词相当于及物动词，也可以有宾语，也可用于被动结构。The boys laughed at him for the foolish mistake.He was laughed at for the foolish mistake.They looked down on peasants in the old days.Peasants were looked down on in the old days.带有带有双宾语双宾语的句子在变为被动结构时，这两个宾语的的句子在变为被动结构时，这两个宾语的任何一任何一个个都可作被动句的都可作被动句的主语主语。The teacher gave the student a new book.The student was given a new book(by the teacher).带有带有复合宾语复合宾语的句子变为被动结构时，的句子变为被动结构时，宾语补足语宾语补足语要相应变要相应变为为主语补足语主语补足语。Everybody called her Big Sister.She was called Big Sister(by everybody).People last saw the lost girl playing near the river.The lost girl was last seen playing near the river.Lets playComplete the notice with the correct forms of the verbs in brackets.Notice 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.have been givenhas been madeLets playOur plan _(support)with technical equipment and advice which _(provide)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.has been supportedhas been providedhas been providedhave been taughtLets playWe _(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 will be happy with this exciting new development in our school.No.8 Senior High Schoolhave been helpedhas been set upLets playFind and correct the mistake in each sentence.EXAPLEThis app was used several times since I downloaded it.has beenLets play1.How much 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.beenbeenwereLets play4.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.beenhas1.function n.功能；作用；机能 vi.起作用；正常工作；运转function asfunction well/normallyperform/fulfill a.functionperform a variety of functions起作用；具有功能运转良好/正常履行职责，发挥作用履行多种职责1.The chair can also _(具有功能)a bed.2.In your new job you will _(履行多种职责).function asperform a variety of functionsWe all have a _ to play in the protection of the environment.A.functionB.effectC.partD.useC2.confirm vt.确认；使确信confirm sb.in sth.confirm sb.in ones belief/opinion/view/suspicions confirm that.It has been confirmed that.使某人确信某事证实某人的信念/观点/看法/怀疑证实已确定 confirm 与prove confirm 和prove 均可作及物动词，后接宾语；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.。You neednt _ the truth of the news，which has _ true.A.proveB.confirmC.provedD.A或或BDC1.To our satisfaction，our underwater explorations _(证实)the theory turns out to be correct.2.His facial expression _ me _(使 确信)my doubt.confirm thatconfirmedinHe has _ himself to be innocent(无罪的).AcheckedBrealizedCconfirmedDshowed C3.press vt.按;压;敦促press.against/on.press a button/switch/key把按在上按下按钮/开关；按键pressure n.压力；劝说，强迫under pressure relieve/reduce pressureput pressure on sb.blood pressure处于压力下减压向某人施压血压1.Im _(处处于于压压力力下下)from my parents to become a teacher.2.Michael took a few steps backwards and _ his back _(把把靠在靠在上上)the wall.under pressurepressedagainst/onParents are advised to take pressure _ a child and give him or her some encouragement before an exam.AoffBoverCfromDtoAExercise1A:Why cant I access my account?B:_ your personal information _(update)?Complete the sentences with the present perfect passive voice of the given verbs.Hasbeen updatedExercise2.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 buy e-books instead of paper books.have been visitedhas not been usedhas been donehave been inspiredExercise6.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.have been postedhave been causedhas been deletedSummarysummaryKnowledge points:function,battery,confirm,Wi-Fi,press,button,fileOthers:Talk about something that has been doneThe present perfect passive voicePoemHomework