高中英语 Unit4(Cyberspace)lesson1 Tomorrow's World课件4 北师大版必修2 课件VIP专享VIP免费

Lesson 1 Tomorrow’s World The Future of Cyberspaceshop on the Internetcommunicate by e-mailget new films on the Internethave virtual reality schoolsget all our entertainment on the Internethave an Internet connection in every room of the homefind husbands or wives on the InternetWhich of these topics do you think it will mention?A.aliensB.androidsC.the InternetD.global warmingE.virtual realityF.genetic engineering A. cybercriminal B.hacker C. cyberterrorist D. the Net (Internet) E.virtual reality F. e-mail1.a criminal who uses the Internet2.a system where people can send messages(mail) to each other by computer3.pictures made by computers that seem real-life to the person looking at them4.someone who uses computers to harm countries ,governments and people 5. computer system that allows millions of people around the world to exchange information 6.a person who enters other people’s computer programs in secret Match the vocabulary with the definitionsAFECDBThe number of computers connected to the Internet in 1983 nowin the futurePart 120050 millionIt’s going to increasehackerscyberterroristsbanks governmentsplanes and trains crashWhy are some experts pessimistic about the future?the activities of cybercriminalsyoung hackers get into banks governments1.2.3. cyberterrorists attack cause chaos make planes and trains crashpart2get all sorts of information What possible changes do the optimists believe the Internet can bring to our lives?1.2.already users buy books find out holiday offers book tickets all sorts of informationIn the next few yearsan explosion of shopping get entertainmentTV and postal service disappearpart3Our future in virtual reality. 1.2the use of computers with sounds and images as if in a real situation a part of modern lifework in virtual offices shop in virtual supermarket study in virtual schoolsDiscussion:Do you feel pessimistic or optimistic about the future of the Internet? Why?Homework1.Retell the text again2.Prepare for lesson14