SeniorHighEnglishBook2Unit4CyberspaceLesson3VirtualRealityⅠ.Preparationsbeforeclass(课前准备)Task1.Haveatry(牛刀小试)请完成同步作业Page11ExerciseI---词汇填空Task2:Haveacompetition(赛一赛)Whatisvirtualreality?Theuseofcomputerswithsoundsandpicturesthatmakeyoufeelasifyouareinarealsituation.Task3:Culturalbackground(文化背景)什么是虚拟现实技术呢？简单地说,就是人们利用计算机生成一个逼真的三维虚拟环境,通过自然技能使用传感设备与之相互作用的新技术。它与传统的模拟技术完全不同,是将模拟环境、视景系统和仿真系统合三为一,并利用头盔显示器、图形眼镜、数据服、立体声耳机、数据手套及脚踏板等传感装置,把操作者与计算机生成的三维虚拟环境连结在一起。操作者通过传感器装置与虚拟环境交互作用,可获得视觉、听觉、触觉等多种感知,并按照自己的意愿去改变“不随心”的虚拟环境。比如,计算机虚拟的环境是一座楼房,内有各种设备、物品，操作者会如同身临其境一样,可以通过各种传感装置在屋内行走查看、开门关门、搬动物品;对房屋设计上的不满意之处,还可随意改动。Ⅱ.ActivitiesinClass(课堂活动)Task1.Rewardingtime(比一比)Task2.Understandthetext(课文理解)1.What’sthemainideaofthetext?A.TheweekendlifeofCathyandTom.B.ThelifethatstudentshopeforlivinginthefutureC.Theimaginationofvirtualreality’sholidayandstudysituationD.Imaginationofhowtoliveinthefuture2.Whichofthefollowingistrue?A.Inthevirtualrealityholiday,wewouldn’texperiencesomethingdirectly.B.Tomewillgocampingwithhisfamiliesthisweekend.C.TomwillsendthewebsiteaddresstoCathywhenhegetstoschool.D.It’snothardforustoimaginethevirtualrealitystudyingsituation.3.Fromthetext,wecaninferthat________.A.Cathyhaslotsofworktodothisweekend.B.Inthefuture,wewillnothavetogotoourdestinationsinthefleshatall.C.Wewillnotonlybeabletotravelaroundtheworld,butgotostudyinworldfamousuniversitieswewantedto.D.Cathydislikestospendalongtimetravelingonplanesduringholiday.4.Accordingtothetext,whichofthefollowingisnotright?A.It’sadoubtthatwhetherTomwillgocampingthisweekend.B.It’slikelythatwewillgoanywherewelikeusingmoderntechnologyinvirtualreality.C.TomwillhelpCathywithherprojectinanycase.1D.Weneedn’tpackasuitcaseduringvirtualrealityholidays.5.Wherecanwefindthetext?A.technicalreportB.scienceandimaginationfictionC.amusementbookD.student’sdiaryCADCBTask3.Readandjudge(读一读、断一断)TrueorFalse1.ThisweekendTomwillhelpCathyfinishaprojectonthehistoryoftheInternet.2.CathyismoreinterestedinvirtualholidaythanTom.3.Tomwillhaveavirtualrealityholidaysthisweekend.4.Virtualuniversityisaninterestinggameonlineinsteadofarealuniversity.5.Virtualrealityholidaysspendlesstimethanrealholidays.6.Youneedn’tgototherealplaceinvirtualrealityholidaysbutyoucangetrealfeelingoftravelingthere.7.TheScienceMuseumonlinedoesn’texistinfact,justimagineit.FTFFTTFTask4.Imagine,reciteandpracticeinclass(想一想、背一背、练一练)1.这个周末你准备做什么_______________________________________________.(Page12)①.你看上去很担心的样子,怎么了?Youlookworried,whathaveyoubeenupto?②.弟弟整个上午把自己关在房间,他在干什么?Mybrotherlockedhimselfinhisroomforawholemorning.Whatisheupto?2．那要看天气情况而定。________________________________________________.(Line7)①.Ifourparentsdoeverythingforuschildren,wewon'tlearntodependon____.A.themselvesB.themC.usD.ourselves(2010上海卷27).解析：主语为we，因此应为ourselves.dependononeself:自力更生。根据句意，选D②.Villagersheredependonthefishingindustry.___therewon’tbemuchwork.A.whereB.thatC.bywhichD.withoutwhich(2008上海春招...
