高中一年级下学期英语《必修2 unit3 The Internet - Grammar》教学课件

Attheendoftheclass,youcan1.Correctlyunderstandandcorrectlyusethepassivevoiceofthepresentperfectfororalandwrittenexpressions;improvereadingskills;buildlanguageskillsscaffoldingforthewritingtasksofthisunit2.CombinedwiththetopicoftheunitandthedevelopmentprocessoftheInternet,usetheInternetreasonablyandeffectivelyinstudy,lifeandsocialinteraction,anddevelopimaginationandcriticalthinking.StrongerTogether:HowWehavebeenchangedbytheinternet?HowWehavebeenchangedbytheinternet?havebeenchangedhave+beendonepresentperfectpassivevoice现在完成时被动语态Let’sunderstandthehistoryofcomputers:Itbeganasa“__________________”in1642inFrancetodosomecomplexanddifficultsums.ThankstoAlanTuring—calledas“__________________________”,thecomputercanworkasa“________________”.

Overtimethecomputerhaschangedquitealot.calculatingmachineuniversalmachinethefatherofcomputersciencecalculatingmachineuniversalmachineAlanTuringLet’sunderstandthehistoryofcomputers:

Bythetime1940s,thecomputerhasbeenmade______________.However,astimewentby,itwasmadesmallerandsmaller.Firstasa______________________andthenasa________.Sincethe1970s,ithasbeenusedin__________________.aslargeasaroomlaptopcomputer)PC(personalofficesandhomesaslargeasaroomlaptopPC(personalcomputer)Overtimethecomputerhaschangedquitealot.

Bythetime1940s,thecomputerhasbeenmadeaslargeasaroom.Sincethe1970s,ithasbeenusedinofficesandhomes.havedone(现在完成时）havebeendone(现在完成时的被动语态）CanyoufindmoreexamplesofpresentperfectpassivevoiceonP28?Much______________(write)aboutthewondersofWorldWideWeb.People’slives__________________（change）byonlinecommunitiesandsocialnetworks.Manypeople______________

(help)bytheclub.4.Jan’slife____________________

(improve)bytheInternet.has/have+beendone1).表示动作已经完成，强调对现在造成的影响或结果2).主语与谓语动词之间的被动关系hasbeengreatlyimprovedhavebeenhelpedhasbeenchangedhasbeenwritten1).Howlonghasthisfilmbeenshown?2).Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours.3).Sincethe1970s,ithasbeenusedinofficesandhomes.Canyoutranslatethefollowingsentences?forSincehas/have+beendone3).表示一个被动的动作或状态开始于过去，持续到现在，并且有可能持续下去。4).常与for或since引导的时间状语连用，或用于

“howlong…?”Much______________(write)aboutthewondersofWorldWideWeb.People’slives_______________

（change）byonlinecommunitiesandsocialnetworks.3.Sincethe1970s,it_____________

(use)inofficesandhomes.Canyoucomparethedifferencesbetweenthefollowingtwogroups?It__________smallerandsmaller.2.Thecomputer__________(buy)

mymother.3).Anewroad___________(build)nextyear.4).Theproblem________________

(discuss)now.has/have+been+donebe+done1).动作已经完成，强调对现在造成的影响或结果2).主语与谓语动词之间的被动关系只表示主语与谓语动词之间的被动关系havebeenusedhasbeenchangedhasbeenwrittenwillbebuiltisbroughtwasmadeisbeingdiscussedMuch______________(write)aboutthewondersofWorldWideWeb.People’slives_______________

（change）byonlinecommunitiesandsocialnetworks.Manypeople_____________

(help)bytheclub.Canyoucomparethedifferencesbetweenthefollowingtwogroups.TherearecountlessarticlestellingushowtheInternet___________

(make)ourlivesmoreconvenient.2.ButtheInternet__________(do)

muchmoreforpeoplethansimply

makelifemoreconvenient.3.He________(live)heresincehecamehere.has/have+been+done1).动作已经完成，强调对现在造成的影响或结果2).主语与谓语动词之间的被动关系has/have+done1).动作已经完成，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动关系havebeenhelpedhasbeenchangedhasbeenwrittenhaslivedhasdonehasmadeCanyouchangethesentencesintopresentperfectpassivevoice?1).Ihavedownloadthesoftwaretohelpmyphonebatterylastlonger.

________________________________________________________

____________________2).Someonehaslostanidentitycard._______________________________________________________3).HaveyouconfirmedtheWi-Fipassword?

_______________________________________________________4).Haveyoupressedthebuttonyettocopythefile?

_______________________________________________________5).Hasanyonemadeacommentabouttheonlinedatabase?

_________________________________________________________

Thesoftwarehasbeendownloadedbymetohelpmyphonebatterylastlonger.Hasthebuttonbeenpressedyetbyyoutocopythefile?HastheWi-Fipasswordbeenconfirmed?Anidentitycardhasbeenlostbysomeone.Hasacommentabouttheonlinedatabasebeenmadebyanyone?所有的动词和动词短语都可以变成被动语态吗？P301).Apersonshould______(possess)courage,determinationandwisdom.2).Ihavejust____(have)aletterfrommyfriend.3).Thehallcan_____(hold)twothousandpeople.4).Theshirt________(suit)you.5).Idon’t_____(know)yourname.6).They____(lack)experience.谓语动词表示状态（拥有、容纳、适合、知道、明白、缺少）时，如have,own,hold,contain,suit,know,possess,want,lack时不可改成被动语态宾语是反身代词、抽象名词或相互代词等的主动句，不能改成被动语态7).Hetaught________(him)English.8).He______(show)specialinterestinsince.9).We____(help)eachother.holdlackhadpossessknowsuitshelpshowshimself宾语是表示地点、组织或处所的名词时，不可改成被动语态宾语是不定式或动名词，动词词组时，不可改成被动语态14).Mostchildrendesire__________(stay)withtheirparents.15).Johnenjoys__________(listen)torockandroll.16).Ican’tagree________you.10).She____(leave)WashingtonforNewYorktoattendaconference.12).Thestudents_______(enter)theclassroomonebyone.13).Myfather__________(join)thePartytenyearsago.enterjoinedleftlisteningtostaywith1).这个数据库已经被更新过了。_____________________________________2).这软件已经被下载过了。

____________________________________3).博客还没有完成。

____________________________________4).你曾经受到过老师的鼓舞么？_____________________________________5).电池多久没有更换了？

______________________________________translation:Haveyoubeeninspiredbyyourteacher?Thebloghasnotbeenfinished.Thesoftwarehasbeendownloaded.Thedatabasehasbeenupdated.Howlonghasthebatterynotbeenchanged?notbeenchangedhasnotbeenfinishedhasbeendownloadedhasbeenupdatedHaveyoubeeninspiredhasTheformsofpresentperfectpassivevoice肯定式：否定式：特殊疑问式：一般疑问式：主语+_______+done主语+______________+doneHave/Has+主语+___________...?疑问词+have/has+主语+___________...?has/havehas/havenotbeendonebeendoneexercise:Let’sunderstandthehistoryofcomputers: Thesechangesonlybecamepossibleasitsmemoryimproved.Firstit__________intubes,thenontransistorsandlateronverysmallchips.Sincetheearly1960s,computers__________________(connected)byanetwork—theWorldWideWeb.Sincethen,computersandthenetwork_____________(change)thewayofliving,productionandmanagement.wasstoredhasbeenconnectedhavechangesCanyoulistafewexamplesofhowtechnologyhaschangedourlivesorsociety?Technologychangeslives.

自从20世纪以来，社会生活已经被科技极大地改变了。这表现在很多方面，其中之一就是手机支付的普及。过去，人们常常带着钱包出门，用现金支付。但自2000年以来，旧的支付方式已经被替代。越来越多的人习惯于手机支付，这既免去了出门带现金的麻烦，也为国外购物带来了便利。 Sincethe20thcentury,sociallife__________________________(changed)bytechnology.Itshowsinmanyways,____________isthepopularityofmobilepayment.Inthepast,people_______gooutwiththeirwalletsand___________.Since2000,theoldpaymentmethods____________________(replace).Moreandmorepeopleareusedto_______(pay)bymobilephone,_______notonlysavesthemthetroubleofcarryingcashout,butalso_____________________sh