unit 4 lesson 3 阅读参考学案

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1、Unit4Lesson3阅读参考学案Learningtargets(学习目标)1.Findoutmainideasofthetextandsummarizethem;2.Pronouncethenewwordscorrectlyandunderstandtheirmeaningincontext;Keypointtolearn(学习重点)1.Usingtimelinkers,especiallyadverbsandconjunctions2Difficulttasktocomplete(学习难点)Howtoimprovestudents’readingandspeaki

2、ngabilitiesⅠ.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,

3、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

4、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.Inthe

5、virtualrealityholiday,wewouldn’texperiencesomethingdirectly.B.Tomewillgocampingwithhisfamiliesthisweekend.C.TomwillsendthewebsiteaddresstoCathywhenhegetstoschool.D.It’snothardforustoimaginethevirtualrealitystudyingsituation.3.Fromthetext,wecaninferthat________.A.Cathyhaslotsofworktodothi

6、sweekend.B.Inthefuture,wewillnothavetogotoourdestinationsinthefleshatall.C.Wewillnotonlybeabletotravelaroundtheworld,butgotostudyinworldfamousuniversitieswewantedto.D.Cathydislikesspendingalongtimetravelingonplanesduringholiday.4.Accordingtothetext,whichofthefollowingisnotright?A.It’sado

7、ubtthatwhetherTomwillgocampingthisweekend.B.It’slikelythatwewillgoanywherewelikeusingmoderntechnologyinvirtualreality.C.TomwillhelpCathywithherprojectinanycase.D.Weneedn’tpackasuitcaseduringvirtualrealityholidays.5.Wherecanwefindthetext?A.technicalreportB.scienceandimagin