新英语必修二Unit4SectionⅠTopictalk学案

Unit4INFORMATIONTECHNOLOGY主题语境——人与社会之科学与技术【语境概说】本单元的主题语境为人与社会中的科学与技术，该主题语境主要包括科技发展与信息技术创新、科学精神、信息安全等。本单元主要涉及科技发展与信息技术创新、信息安全。通过本单元的学习，学生将对科技发展和信息技术创新有新的认知；同时在语言能力、文化意识、思维品质和学习能力等方面得到融合发展。Informationtechnologyisthefirstproductiveforceinthe21stcentury.信息技术是21世纪的第一生产力。Informationisthecarrierformankindtoinheritcivilizationandgraspthefuture.信息是人类传承文明，把握未来的载体。Thedevelopmentofhigh－techisbothablessingandacurse.高科技的发展确实是一柄双刃剑。Scienceisendless；itisaneternalmystery.科学是永无止境的，它是一个永恒之谜。SectionⅠTopictalkⅠ.Pre－listening—Translatethefollowingwordsandphrases.1．explorevt.探究；探讨2．conveniencen.方便，便利3．ordervt.订购4．downloadvt.下载5．recommendationn.建议；推荐6．updatevt.更新7．personalityn.个性，性格8．videochatwithsb和某人视频聊天9．enablesbtodosth使某人能做某事10．communicatewithsb和某人交流Ⅱ.While－listening1．FinishEx.2onPage6.2．FinishEx.4onPage7.Ⅲ.Post－listening—ListentoActivity2againandfillintheblanks.W：Ilove①exploringnewtechnologies,becausetheyaresoconvenient.Youknow,IuseappstobuythingsonlineandIusuallyreceivethemthesameday!M：Wow，that’sreally②convenient．W：Indeed！Iknowonethatcanevenhelpyougetwhatyouorderwithintwohours!M：Whatisit？I’dliketotrythat,too.W：Sure，③here__it__is．Besidesshoppingonline,Ialsolike④chattingonline.Itmakesmefeellesslonely.Technologyreallyenablespeopletocommunicatebetterwitheachother.M：That’strue！Butarethereanydisadvantagesaboutthesenewtechnologies?W：Well，toomuchchattingonlinetakesalotoftime.Wereallyneedtimeto⑤focus__onwhatwearedoing.Ⅰ.语言知识积累关于网上购物的常用口语1．Doyouoftenshoponline?你经常网上购物吗？2．SometimesIsurfonlineshopstocheckoutwhattheyhaveandthengotoaphysicalstoretodotheactualshopping.有时候，我会逛逛网店，看看店里有什么，然后到实体店去买。3．Canthequalityofgoodsonlinebeguaranteed?网上商品的质量能有保证吗？4．Pricesareoftenrelativelyloweronline.通常，网上的价格相对比较低。5．EventhoughIshoponline,Idon’tthinkit’sthebestwaytoshop.虽然我在网上购物，但我认为这并不是最好的购物途径。6．Youcanapplyforarefundifyouarenotsatisfiedwiththegoodsboughtonline.如果你对网上买的东西不满意，可以申请退款。7．There’sstillalongwaytogobeforeonlineshoppingtobewellrecognizedbythegeneralpublic.网上购物要得到人们的认可，还有很长的路要走。Ⅰ.Brainstorming—Howisinformationtechnologyappliedinourdailylife?Information__technology__is__applied__in__many__aspects__of__our__daily__life，including__heath__care，transport，education，communication__and__so__on.Ⅱ.Makesentencesafterthemodel.1．Iloveexploringnewtechnologies，becausethey...我喜欢探索新技术，因为它们……[仿写]我喜欢探索新技术，因为它们非常方便/使生活更轻松/能促进更好的交流。Iloveexploringnewtechnologies,becausetheyare__so__convenient/make__life__easier/enable__better__communication．2．Iuseappsto...online我使用应用程序在网上……[仿写]我使用应用程序在网上聊天/交流/放松/购物。Iuseappstochat/communicate/relax/buy__thingsonline.3．Ialsolikechattingonline.It...Well,toomuchchattingonline...我也喜欢网上聊天，它……当然，网上聊天太多……[仿写]我也喜欢网上聊天，它使交流变得方便/我感觉不那么孤独/信息更容易找到。当然，网上聊天太多使我们变得自我关注/生活在一个虚幻的世界/上瘾/花费很多时间。Ialsolikechattingonline.Itmakes__communication__convenient/me__feel__less__lonely/information__easier__to__find．Well,toomuchchattingonlinemakes__us__self－focused/live__in__an__unreal__world/addicted__to__it/takes__a__lot__of__time．Ⅲ.TalkabouttheInternetusingthefollowingsayingsorproverbs.1．Inthisworldofrapidtechnologicalprogress,ifyouwanttosurvive,youmustcontinuetolearn.在这个科技进步得飞快的世界，你想要活下去，就要不断地学习。2．IfyoumisstheInternet,youwillmissnotonlytheopportunity,butanentireera.如果错过互联网，与你擦肩而过的不仅是机会，而是整整一个时代。3．GreatInternetapplicationswilleitherchangehowpeopleaccessinformationorhowtheycommunicate.伟大的互联网应用要么改变人们对信息的获取方式，要么改变人们的沟通方式。4．NoinventionhasreceivedmorepraiseandabusethanInternet.没有一项发明像互联网一样同时受到如此多的赞扬和批评。The__Internet__is__playing__a__more__and__more__important__part__in__our__daily__life.On__the__Internet,__we__can__learn__news__both__at__home__and__abroad__and__all__kinds__of__other__information__as__well.We__can__also__send__messages__by__e-mail,__make__phone__calls,__go__to__net__schools,__read__different__kinds__of__books__and__learn__foreign__languages__by__ourselves.Besides,__we__can__enjoy__music,__watch__sports__matches__and__play__chess__or__cards.On__the__Internet,__we__can__even__do__shopping,__have__a__chat__with__others__and__make__friends__with__them.In__a__word,__if__you__miss__the__Internet,__you__will__miss__not__only__the__opportunity,__but__an__entire__era.Ⅱ.文化知识习得地球村地球村，是说地球虽然很大，但是随着广播、电视、互联网和其它电子媒介的出现，大家交流就像在一个小村子里面一样便利。“地球村”(globalvillage)一词是加拿大传播学家M.麦克卢汉1967年在他的《理解媒介：人的延伸》一书中首次提出。麦克卢汉对现代传播媒介的分析深刻地改变了人们——特别是当代青年人，对20世纪以及21世纪生活的观念，他所预言的地球村在今天的社会已经变成了现实。在麦克卢汉看来，“地球村”的主要含义不是指发达的传媒使地球变小了，而是指人们的交往方式以及社会和文化形态发生了重大变化。地球村是互联网的发展；是信息网络时代的集中体现；是知识经济时代的一种形式；而现代交通工具的飞速发展，通信技术的更新换代，网络技术的全面运用使地球村得以形成。Ⅲ.学习策略形成如何有效地进行听说训练1．听懂文章大意在听力过程中，不能只在意单词，要在意句子本身的意思，有些地方听不懂没关系，要了解整篇文章在说什么。2．积累语言知识整理每次听力材料中的新知识点、新单词，通过语境去记忆。3．训练听说能力听说能力可以从听写、精听、跟读和复述四个方面来训练。(1)听写：先总体听一遍材料，了解大意；然后听文章句子，写下来，倒回去再听；直到把它完全写出来。(2)精听：将听力材料一字一句地写下来，精确到标点符号。(3)跟读：先对照着文本，精听至少三遍；然后尝试以相同的节奏跟读听力材料，不断地跟读，理想情况下平均8遍之后可以跟上材料的语速。(4)复述：整段复述(保证段落长度的复述时间不超过1分钟)。4．不要害怕犯错误学习英语口语是在不断犯错误的过程中练习、进步的。因此练口语应该积极主动，克服害羞心理，利用一切机会讲英语。1．conveniencen．方便，便利；便利的事物convenientadj.方便的；便利的inconveniencen.不方便；不便inconvenientadj.不方便的provideconvenience(教材P6)提供便利[合作探究]体会convenience及其派生词的用法和意义Wehopetodiscussbusinesswithyouatyourearliestconvenience.我们希望尽早与你方洽谈业务。Wehaveprovidedseatsfortheconvenienceofourcustomers.为方便顾客，我们备有座位。WillitbeconvenientforyoutochatwithmeontheInternettonight?你今晚和我网上聊天方便吗？[自主发现]①atone’sconvenience在某人方便的时候②forone’sconvenience(of)＝fortheconvenienceofsb为了某人的方便③Itisconvenientforsbtodosth某人方便做某事[名师提醒]convenient作表语时，不可用人作主语，要用物作主语或用it充当形式主语。表达“如果你方便的话”和“在你方便的时候”时，要分别用ifitisconvenientforyou和whenitisconvenientforyou。[词块积累]forconvenience为了方便起见conveniencefood/store方便食品/便利店[巩固内化](1)单句语法填空①Thesegatesarealwaysopenfortheconvenienceofvisitors.②Anyhelpfromyouwillbegreatlyappreciated.Pleasegivemeareplyatyourconvenience.③Willitbeconvenientforyoutostartworktomorrow?(2)一句多译④方便的话，我们希望你能接受我们的邀请。Wehopeyouwillacceptourinvitationat__your__convenience．(convenience)＝Wehopeyouwillacceptourinvitationif/when__it__is__convenient__for__you．(convenient)2．effectn．效应；影响；结果(教材P6)effectiveadj.有效的[合作探究]体会effect的用法和意义Whileonlineshoppinghaschangedourlife,notallofitseffectshavebeenpositive.虽然网上购物已经改变了我们的生活，但它的影响并不全是积极的。Thenewtrafficrulecameintoeffect.Now,itisbeginningtotakeeffect.Ineffect，ithasaneffectonpeople’slifeinmanywaysbesidespeople’sfocusontheroadsafety.新的交通法规开始实施了。现在它开始生效了。实际上，除了人们对道路安全的关注外，它还在很多方面影响着人们的生活。[自主发现]①comeintoeffect生效，开始实施②take__effect生效，开始起作用③ineffect实际上，事实上④havea/an...effecton/upon...对……有……影响[词块积累]sideeffect副作用causeandeffect因果[巩固内化]单句语法填空①Shouldhousepropertytax(房产税)comeintoeffect，Chinamightwitnessafallinhouseprices.②Optimismhasapositiveeffecton/uponpeople’sphysicalandmentalhealth,ofwhichI’mveryconvinced.③Hesaidhegraduatedfromafamousuniversity，butineffect，heneverwenttocollege.④Oneofthemosteffective(effect)waystoreducestressistotalkaboutyourfeelingswithsomeoneyoutrust.3．addictedadj.对……着迷的；沉迷的addictionn．癖好addictvt.使沉溺；使上瘾n．有瘾的人makesusaddictedtoit(教材P6)使我们对它上瘾[合作探究]体会addict的用法和意义TeenagerswhoareaddictedtotheInternetaremorelikelytosufferfromdepression.有网瘾的青少年更可能患忧郁症。Hersonaddictedhimselftosmoking,whichhadabadeffectonhishealth.她的儿子吸烟上瘾，这对他的健康有很坏的影响。Addictedtoplayingtheviolin,hedidn’tfindathiefwalkintohishouse.他醉心于拉小提琴，没有注意到小偷进屋。[自主发现]①be/become/getaddictedtosth/doingsth沉溺于……；专心做……②addictoneselftosth沉溺于……[巩固内化]一句多译很多孩子沉迷于上网，因此他们对学习失去了兴趣。Manykidsare/become/get__addicted__tosurfingtheNet,andsotheyhavelostinterestinstudy.＝Manykidsaddict__themselves__tosurfingtheNet,andsotheyhavelostinterestinstudy.＝Addicted__tosurfingtheNet,manykidshavelostinterestinstudy.4．admitvt.&vi.承认；容许；接纳；容纳admissionn．承认；许可Well，Iadmitit.(教材P99)好吧，我承认。[合作探究]体会admit的用法和意义Hehadtoadmithavingmadeaseriousmistakeinpublic.他不得不当众承认犯了一个严重的错误。Ihavetoadmitthattimecanchangeeverything，includingyourfaceandyourmind.我不得不承认，时间可以改变一切，包括你的容颜和你的想法。Theconcernedmotherbecameexcitedtohearthenewsofherson’shavingbeenadmittedtotheuniversity.担忧的母亲听到她儿子被大学录取的消息十分激动。Ourfootballteamdecidedtoadmithimasoneofthemembers.我们的足球队决定吸收他为本队队员。[自主发现]①admitdoing/having__done/that...承认……②beadmittedto/into被接纳进入③admit...as．..接纳……作为……[巩固内化](1)单句语法填空①LittleJackadmittedhaving__stolen(steal)intheshop,promisingthathewouldn’tdothatinfuture.②Hestudiesveryhardinordertogethimselfadmittedinto/toakeyuniversity.(2)一句多译③他承认无证驾驶。Headmittedhaving__drivenwithoutadrivinglicense.＝Headmittedthat__he__had__drivenwithoutadrivinglicense.Ⅰ.Listening(Ⅰ)ListentoDialogue1justonceandchoosethebestanswer.Howdoeschattingonlinemakethewomanfeel?A．Veryhappy. B．Verysad.C．Lesslonely.答案C听力原文W：Iloveexploringnewtechnologies，becausetheyaresoconvenient.Youknow，IuseappstobuythingsonlineandIusuallyreceivethemthesameday!M：Wow,that’sreallyconvenient.W：Indeed！Iknowonethatcanevenhelpyougetwhatyouorderwithintwohours!M：Whatisit？I’dliketotrythat,too.W：Sure,hereitis.Besidesshoppingonline,Ialsolikechattingonline.Itmakesmefeellesslonely.Technologyreallyenablespeopletocommunicatebetterwitheachother.M：That’strue！Butarethereanydisadvantagesaboutthesenewtechnologies?W：Well,toomuchchattingonlinetakesalotoftime.Wereallyneedtimetofocusonwhatwearedoing.(Ⅱ)ListentoDialogue2twiceandchoosethebestanswer.1．Whoistheboy’snewphonefrom?A．Hisfriend. B．Hisparents.C．Hisgrandparents.2．Whatdoesthegirllikedoingonthephone?A．Readingnews. B．Watchingmovies.C．Playinggames.3．Whatdoweknowabouttheboy?A．Heisaddictedtoplayinggames.B．Helikesplayinggames.C．Heplaysgamesformorethanhalfanhouronce.答案1.B2.A3.B听力原文(B＝BoyG＝Girl)B：Thisnewphoneisabirthdaypresentfrommyparents.I’vedownloadedlotsofinterestingandusefulappsalready.Ilikethismusicapp—IcanlistentosongswhenIcan’tsleeporfeelnervous.Itreallyhelpsmerelax.G：That’scool！Ilikereadingnewsonmyphone.Doyouhaveanyrecommendation?B：Oh，yes！Youcandownloadthisapp！You’llgetupdatedwiththenewsalldaylong.G：Super！What’syourfavouriteapp?B：Ienjoyplayinggames.Ihavedownloadedquiteafewappsfordifferentgames.Iusedifferentavatarsindifferentgamesandthisisreallycoolbecausetheyletmeexploredifferentpersonalities.Newgamesmakemylifeinteresting.G：Wow！Thatsoundscool！Butyouneedtobecarefulaboutspendingtoomuchtimeonthem—youcouldgetaddicted.B：Well,Iadmitit.SoI