高中英语 Unit4《Cyberspace》lesson1 Tomorrow's World课件5 北师大版必修2.ppt

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1、Unit4CyberspaceLesson1Tomorrow’sWorldTheFutureofCyberspaceStep1WarmupModerntechnology(现代科技）helpsusdomanythings.DigitalCameras数码相机MP3computersrobots(机器人）theInternetcellphones(无线电话）CD(CompactDisc)光盘DVD(DigitalVideoDisc)数字化视频光盘Step1WarmupButmoderntechnology(现代科技

2、）canalsocauseproblems.Workinsmallgroupsof4anddiscuss:Group1:theadvantages(优点）ofrobotsGroup2:thedisadvantages（不足）of‘robots’Group3:theadvantagesof‘computers’Group4:thedisadvantagesof‘computers’TechnologyAdvantagesRobotsDisadvantages1.Robotscanworkindirtyanddang

3、erousplaces.2.Robotscanworkwithoutsleepandfood.Robotscan’tthinkormakedecisions.2.Peoplemaylosejobsifrobotsareusedinsteadofhumans.TechnologyAdvantagesComputersDisadvantagesComputersareexpensive.Computerscan’tthinkormakedecisions.Computershelpusworkfaster.2.Com

4、puterscanhelpussolvedifficultproblems.Step2Guessing:Whichofthesetopicsdoyouthinkitwillmention?Readfastandfindout!theInternetartificialhumantimetravelrobotsglobalwarmingvirtualreality（虚幻/模拟现实）Step3DiscussionTakeoutasheetofpaper.Workingroupsof4andwritedownthest

5、ructureofthepassage.(文章的写作结构）Tips:（提示）从文章的两类人的观点着手。1.Whyaresomeexpertspessimistic(悲观的）aboutthefutureoftheInternet?2.Whyaresomepeopleoptimistic（乐观的）aboutthefutureoftheInternet?pessimistichackersCyberterroristsnowinthefuturecybercriminaloptimisticinthefuturevir

6、tualrealityworkshopstudygetentertainmentTV&postalservicewilldisappearalreadyinthenextfewyearsshopontheInternetgetinformationbuybooksfindoutholidayoffersbookticketsThestructureofthepassage(文章的写作结构）bad:pessimistic(悲观的）good:optimistic（乐观的）Howdoesthecomputerandth

7、eNetaregoingtoaffectourlives.TopicSentence（中心句）Step4GuessthemeaningReadthearticleagainandmatchthevocabularyfromthetextintheboxbelowwiththedefinitions.cybercriminalhackercyberterroristtheNet(Internet)virtualrealitye-mailLine12Line13Line16Line1/26Line43Line41Gu

8、essthemeaningfromthecontext.(上下文）1cybercriminal2e-mail3virtualreality4cyberterrorist5theNet(Internet)6hackerKeys:Step5Enjoythereading.Step6CreationandSpeakingAfterreadingthearticleanddisc