北师大版高中英语必修二全册课件.pptx

1-2-UNIT 4 INFORMATION TECHNOLOGY素养导航导航 主题语境人与社会科学与技术TheylikeusingtheInternet.Theyhavelotsofpocketmoneytospend.Andtheyspendahigherpartofitonlinethantherestofus.Teenagersarejustthepeopleanonlinesellerisinterestedin,andthethingstheywanttobuygames,CDsandclothingareeasilysoldontheWeb.Butpayingonlineisatrickybusinessforconsumerswhoaretooyoungtoowncreditcards.Mosthavetouseaparentscard.Theywanttobeallowedtospendmoney.Thatmaycomesoonerthantheythink:newwaystotakepocketmoneyintocyberspacearecomingoutrapidlyonbothsidesoftheAtlantic.Ifsuccessful,theseproductscanencourageonlinesales.Ingeneral,teenagersspendhugeamounts:$53billionintheUSlastyearand20billioneveryyearintheUK.MostteenagerscansurftheInternetathomeoratschool88percentintheUS,69percentintheUK.AccordingtotheJupiterResearch,oneineightofthosewithInternetaccesshasboughtsomethingonlinemainlyCDsandbooks.Inmostcases,parentspayforthesepurchaseswithcreditcards,anarrangementthatisoftenunsatisfactoryforthemandtheirchildren.Pressingparentstospendonlineislessproductivethanpressingonthehighstreet.Theyaremorelikelytoask“Why?”ifyouasktospendsomemoneyonline.OnewaytohelpteenagerschangenotesandcoinsintocybercashisthroughprepaidcardssuchasInternetCashintheUSandSmartCardsintheUK.Similartothoseforpay-as-you-gomobiletelephones,theyaresoldinamountssuchas20or$50withahidden14-digitnumberthatcanbeusedtoloadthecashintoanonlineaccount.词海拾贝trickyadj.狡猾的;机警的unsatisfactoryadj.不令人满意的productiveadj.有效益的;富有成效的prepaidcards预付卡典句欣赏Similartothoseforpay-as-you-gomobiletelephones,theyaresoldinamountssuchas20or$50withahidden14-digitnumberthatcanbeusedtoloadthecashintoanonlineaccount.译文:类似于预付费的移动,它们(预付卡)的售价是20英镑或50美元,有一个隐藏的14位数字可用于将现金存入账户。

分析:本句的主干是theyaresoldinamountssuchas20or$50withahidden14-digitnumber,thatcanbeusedtoloadthecashintoanonlineaccount是定语从句Similartothoseforpay-as-you-gomobiletelephones作状语探究思辨Whatdoyouthinkofonlineshopping?答案:Ontheonehand,onlineshoppingisaconvenientwaytobuythings.Itistime-saving,andyouhavemorechoices.Ontheotherhand,therearesomedisadvantages.First,youcannottouchtheitem,soitmaybedifferentfromwhatyouget;youmayfallforthetricksofonlineshops.Besides,payingonlineisnotalwayssafe.-9-Section ATOPIC TALK & LESSON 1.知识体系图解 重点词汇1.superadj.2.self-focusedadj.3.indeedadv.4.downloadvt.5.avatarn.6.imagen.7.fancyadj.8.identityn.9.instantadj.10.sexn.极好的,了不起的以自我为中心的;关注自我的确实;当然下载(网络上代表个人的)头像,虚拟替身,图标图像;形象花哨的;别致的身份;特征即时的;立刻的,马上的性别11.blogn.vt.12.hairstylen.13.typevi.&vt.n.14.virtualadj.15.vt.使可能,使发生16.n.方便,便利17.n.效应;影响18.n.影响;作用19.adj.对着迷的;沉迷的20.vt.探究;探讨;探险21.n.个性,性格adj.个人的;私人的22.vi.&vt.承认博客;网络日志发表博客发型,发式打;打字类型,种类虚拟的;模拟的enableconvenienceeffectimpactaddictedexplorepersonalitypersonaladmit23.n.闹钟24.vt.欺骗,诱骗,哄骗25.n.多样化,变化26.n.创造力;独创性vt.创造27.adj.朴素实用的;明智的,合理的28.adv.显而易见地,明显地adj.明显的29.vi.&vt.做实验,进行试验n.实验30.adv.现今,现时31.n.供选择的同类物品;选择32.n.担忧,忧虑vt.与有关;使担心33.vt.欺骗;欺诈34.vt.看,把视为alarmtrickvarietycreativitycreatesensibleobviouslyobviousexperimentnowadaysselectionconcerncheatview重点短语1.instantmessenger2.moreorless3.experimentwith4.actlike5.沉迷6.各种各样的7. 期待重点句式Thesedigitalidentities,knownasavatars,areakeypartofhowpeopleusetheInternettocommunicateandexpressthemselves.重点语法 过去将来时即时通信或多或少用做实验表现得像beaddictedtoavarietyoflookforwardto.阅读导学A.匹配段落大意。

Para.1.A.Attitudestowardsavatarsdiffer.Para.2.B.Peoplecanuseavatarstoexpressthemselves.Para.3.C.Avatarsrepresentthepersonalitiesoftheusers.Para.4.D.Thereareavarietyofavatarsforuserstochoose.Para.5.E.AnavatarisadigitalimagethatrepresentsanInternetuser.Para.6.F.Firstappearinginthe1980s,avatarshadbeenusedinwebchatsbythelate1990s.答案:Para.1.EPara.2.FPara.3.BPara.4.CPara.5.DPara.6.AB.阅读pp.8-9文章,选出最佳答案1.Whichofthefollowingcanbeinferredfromparagraph3?A.Avatarscanexpressadifferentself.B.Peoplemayhavenomorethanoneavatar.D.Peoplemaychooseafriendlyavatarforwork.C.Peopleusuallychooseasillyavatarformeetingpeople.2.Ifyouravatarisalaughingmonkey,itusuallyshows.A.youareaninterestingpersonB.youlikerelaxingandhavingfunC.youaretall,youngandnice-lookingD.youhavesimilarpersonalitiesasmonkeys答案:A答案:A3.Whyaresomepeopleworriedaboutavatars?A.Avatarsmayactlikearealperson.B.Avatarsmaybringarisktotheirusers.C.Usersmayusedifferentavatarstocheatonline.D.Avatarsmaybeafraidofmeetingpeopleintherealworld.答案:C.阅读下列句子,体会并注明画线部分的时态和用法 1.LiMingsaidthatyouwouldbehappyifyouheardfromme.2.EveryeveningMrWangwouldgoandtalkwithhisstudents.3.Ididntknowifshewouldcome.4.HetoldmethathewouldgoonatriptoBeijingthenextday.5.Mymothertoldmeshewouldgoshopping.6.Hesaidthathewasgoingtohaveawalkwithhismother.时态:用法:答案:时态:过去将来时用法:表示从过去的某个时间看将要发生的动作或存在的状态。

重点词汇1.enablebettercommunication/enablespeopletocommunicatebetter能促进更好地沟通/使人们能够更好地沟通(教材p.6)【词汇精讲】句中的enable为able的动词形式,意为“使可能,使发生;使能够”Theconferencewillenablegreaterinternationalco-operation.这次会议能进一步促进国际间的合作词汇拓展】(1)相似词语(2)enablesth促成某事enablesbtodosth使某人能够做某事ableadj.有能力的;能够abilityn.能力theabilitytodosth做某事的能力Thiskindofsoftwareenablesyoutodownloadafilminseconds.这种软件使你在几秒钟内便可下载一部电影Thenewprogrammeenablesolderpeopletostudyatcollege.这项新计划使老年人有机会在大学学习2.provideconvenience.提供方便(教材p.6)【词汇精讲】句中的co。