Unit 4 Information Technology Lesson 2 课件-高中英语北师大版（2019）必修第二册

Unit4InformationTechnologyLesson1AvatarsPeriod2Recalling1.Whattexttypedoesthisarticlebelongto?Exposition.(1)Itexplainsaprocessinasequenceaboutsomefacts,forexample,1980s,1990s,nowadays.(2)Itprovidesacomparisonandcontrastbetweentwothings.Asisshowninthelastparagraph,twodifferentviewsonavatarsarepresented.Answerthequestionsaccordingtowhatwehavelearntinthelastlesson.Recalling2.Whatareitscommunicativepurposes?Thecommunicativepurposesofthisarticlearetointroduceavatarstothereaders,fromdefinition,history,purposeofusingavatarstodifferentviewsonavatars.Italsowarnsusthattheuseofseveralavatarscanbearisk,weshouldbecarefulwhensurfingonlineinordertoavoidsomeproblems,likebeingafraidofmeetingpeopleinrealworldbecauseofspendingtoomuchtimeinvirtualworlds,plusbeingcheated.RecallingCompletetheshorttextwithinformationfromthearticle.Avatarsaredigital1________thatyouusetorepresentyourselfonline.Youcanchooseanavatarfrom2_________ofready-madeimages,or3___________________.Althoughavatarshaven’tbeenaroundforlong,theyarewidelyused.Avatarsletyou4_____________andgiveyou5_________________.Buttheuseofavatarshasalsocaused6____________.Someusersworrythattheyarespendingtoomuchtime7______________thattheyarebecomingafraidofmeetingpeopleintherealworld.Theuseofseveralavatarscanalsobe8_____,aspeoplecanuseavatarsto9________________.However,manypeopleseeavatarsin10_______________.expressyourselfidentitiesaselectioncreateyourownimagesroomforcreativityafewconcernsinvirtualworldsariskcheatothersonlinea

positive

lightObservingReadthesentences.WritePbelowtheunderlinedpartsthatrefertothepastandPFbelowtheunderlinedpartsthatrefertothefutureinthepast.1.Yetveryfewpeopleknewthatfutureavatarswouldhavesuchawidevarietyofformsanduses.2.Whenpeoplestartedcreatingtheirownavatars,theydiscoveredthattheyweregoingtohave

thepowertocreatenewidentitiesthatdidnotlookoractliketheirrealselvesatall.3.ManyInternetusersrealisedthattheiravatarswouldbeseenbymanypeople,notjusttheirfriends.PPFPPPPFPFObserving4.Whentheaward-winningoutreachprogramwaslaunched

in2005,it

wasbelievedthatitwouldeducate

kidsaboutenergyuse.5.GregCross,theChiefBusinessOfficerofSoulMachines,assertedthat

kidswhohavegrownupinthissmartdeviceerawouldadapttonew

technologyquickly,andhewasgoingtodeveloptheconceptof

digitalhumansintheareaofeducationfurther.

PPPFPPFPFGrammarSummary“过去将来时”指的是以过去时间为基点将要发生的情况。Definition试对比：Iwill

gotomorrow.这里的tomorrow是“将来”；IsaidthatIwould

gothenextday.这里的thenextday是“过去的将来”，对现在而言，thenextday可能已经过去了。GrammarSummary基本结构：1.主语+was/were

goingto+动词原形Iwasgoingtotell

him,buthedidn’tgivemeachance.我想要告诉他这些事的，但他没给我机会。2.主语+would+动词原形Hesaidthathewouldn’tfinishhisworkthisafternoon.他说他今天下午完成不了工作。GrammarSummary3.主语+was/were+现在分词Wewereseeingeachotherlaterthatday,butIhadtophoneandcancel.我们本打算那天晚些时候见面的，但我打电话取消了。4.主语+was/were（about）+动词不定式He

said

they

were

toleaveatsix.他说他们将于6点出发。基本结构：GrammarSummarywas/weregoingtobe/dowouldbe/do比较was/weregoingtobe/do”和“wouldbe/do”结构表示过去计划、安排要做的事表示说话人根据当时的迹象推断将发生的事表示过去的计划或打算，但因外界干扰而中断多用于非正式场合或口语中表示过去将来要发生的事表示意愿或承诺要做的事表示过去某个时期常见的情况或习惯性的动作除用于口语外，多用于正式场合或书面语中Practicewasgoingtodowillbe√√isabouttostartwouldhaveshownPracticeCompletetheblogextract,usingthecorrectformofthewordsandphrasesbelow.Someofthemcanbeusedmorethanonce.becomelovebeabletonothavetoFromthetimeImetAliciaTang,Iknewshe1______________

thenextbigthinginthetechnologyworld.Afifteen-year-oldappdeveloper,shewasconfidentthatherfirstapp2______________oneofthebiggestsellingintheworld.Nowatonlyeighteen,shehasaccomplishedhergoalasheronlineshoppingcomparisonapphasmillionsofdownloads.wouldbecome

wouldbecomePracticebecomelovebeabletonothaveto“IfeltitwasgoingtobeasuccessbecauseIknewthatpeople3__________thefactthatthey4____________________spendsomuchtimesearchingforproductstheywanted,”saysAlicia.“WhenIwasgoingtolaunchtheapp,Ispoketolotsofexpertsandappdeveloperswhogavemegreatadviceandguidance.BecauseIhadthesupportofsomanypeople,IknewI5_______________makeasuccessfulapp.”shesays.wouldlovewouldn’thavetowouldbeabletoSpeakingPairWork:Supposeyouwereattheageoften,howwouldyoufancyyourlifeinthefuturewiththehelpoftechnology?Completethestorybyusingthepastfuturetenseinthiscontext.Example:WhenIwasten,Ibelievedthatanyonewhocoulduse

computer

wouldbecome

themostintelligentpersoninthefuture.IfanciedthatIwouldhave

aBPcall,liketheonemyfatherhad.IthoughtthatIwasgoingtobuy

arobottohelpwithmyhomeworkandexams.AssignmentRecallyourplans/dreamsfortravelling(playingfootball,holdingabigbirthdayparty,studyingabroad...)befor