北师大版高中英语必修2 Unit4 Lesson1 优选精品课件

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.

2、Work 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 readingP

3、ara 1: Fill in 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 pessimisti

4、c about the future.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 wh

5、ich everything goes wrongPara. 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 virtu

6、al reality? * work in virtual 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 opinionsVirtual realityIntroductionDifferent opinionsPredictionIn your opinion, is the writer optimistic or pessimistic about the future of the Internet? Your voicePost-readingDiscussion Do you feel pessimistic or optimistic about the future of the