北师大版-必修2-Unit-4-Cyberspace-Lesson-1-ppt课件.ppt

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1、 Lesson1 Tomorrows WorldUnit 4高中英语北师大版必修2Warming-upPadphonesmartconvenientmulti-functionalWarming-uprobots(机器人）机器人）digital cameraWarming-upWarming-upBut in the 21st.century,Can you imaginewhat a computerlooked like in the 1980s?Warming-up But modern technology(现代科技）现代科技）can also cause problems.Work

2、in small groups of 4 and discuss:Group1:the advantages(优点）优点）of robots Group2:the disadvantages（不足）（不足）of robots Group3:the advantages of computers Group4:the disadvantages of computersFree TalkWhile readingWhat is talked about in this article?*the Internet*virtual realityWhile readingPara 1:Fill in

3、 the blanks below:In the last thirty years,the Internet has _ _.grown rapidlyIn 1983only _ computers connected to the InternetNow there are around _In the futurethe _ is going to continue20050 milliongrowth Main idea:the growth of the InternetWhile readingSome experts are pessimistic about the futur

4、e.Even now,young hackers can get into the computers of banks and governments.*chaos*crime*terrorist*crashC.have an accident by violently hitting somethingB.someone who does terrible things to harm countries and people A.activities that break the law D.a terrible situation in which everything goes wr

5、ongPara.2:While readingget entertainmentfind out about holiday offersbuy booksbook ticketsget all sorts of informationsend e-mailsdo shopping on the Internetthings done on the Internet Many people are optimistic.Why?Para.3:While readingWhat can we do in the future using virtual reality?*work in virt

6、ual offices*shop in virtual supermarkets*study in virtual schoolsWhats virtual reality?The use of computers with sounds and pictures that make you feel as if you are in a real situation.Para.4:SummaryThe structure of the article:The growth of the InternetPessimistic opinionsOptimistic opinionsVirtua

7、l realityIntroductionDifferent opinionsPredictionIn your opinion,is the writer optimistic or pessimistic about the future of the Internet?Your voicePost-readingDiscussionDo you feel pessimistic or optimistic about the future of the Internet?Why?HomeworkWriting:Do you feel pessimistic or optimistic about the future of the Internet?Why?