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

Unit 41.Lesson 1Tomorrows WorldStep 1 Warming up Imagine life in the next twenty years .How do you think technology will change our lives ? Example :All cars will have puters. Go shopping online.Neednt carry cash and use credit cards.Instead of going to the bank you can use a puter and a telephone to pay for bills.3.have virtual reality schools municate by e-mail get new films on the Internet get all our entertainment on the Internetread newspapers on the Internet.4. Look at the title of the article. Which of these topics do you think it will mention?* the Internet * artificial human * time travel * robots * global warming * virtual realityStep 2 Pre-reading5. Listen to the record of the article and check your guess to question 2 above.the Internetvirtual reality6.Learning vocabulary Read the article and match the vocabulary from the text below with the definitions.hacker, chaos, terrorist, the Net (Internet), virtual reality, crash7.1、a person who enters other peoples puter programmes in secrethacker2. The use of puters to make situations feel and look real virtual reality8.3. have an accident by violently hitting something 4. someone who does terrible things to harm countries, governments and peoplecrashterrorist9.5. puter system that allows millions of people around the world to share information the Net6. A terrible situation in which everything goes wrongchaos10.Step 3 While-reading Listen to the tape again and match the paragraphs with these headings . a) Pessimistic opinions b) Seeing the future c) Optimistic opinions d) The Internet growth243111.Questions: Read the passage carefully and answer the following questions.1.Why are some experts pessimistic about the future?1. One worry is crime in cyberspace.2.Young hackers can get into the puters of banks and governments.3. Terrorists “attack” the worlds puters, cause chaos, and make planes and trains crash.12. 2. What possible changes do some experts believe the Internet can bring to our lives?already 1.Users can buy books, find out about holiday offers, book tickets and get all sorts of information from the Internet .In the next few years2. We are going to see a huge growth in shoppingon the Internet . We will get entertainment from the Net .TV and mail service may disappear.13.3.How is our future in virtual reality ? 1.The use of puters with sounds and pictures that makes you feel as if you are in a real situation . 2.Virtual reality will bee a part of modern life. People live and work in virtual offices, shop in virtual supermarkets and study in virtual schools1.In the last thirty years, the Internet grew rapidly. 2. Terrorist may “attack” the worlds puters, cause chaos, make planes and trains crash.3. It is convenient to order tickets from the internet.has grownandbookCorrect the errors of the sentences. Step 4 Post reading15.4. In 1983, there were only 200 puters connect to the Internet.5. It is clear we can use internet to do all kinds of things at home.6. Personally, Im optimistic about the future of internet.connectedthatthe16.7. As society develops, puters will make our life much convenient.8. The mail service may also disappear as the increasing use of e-mail. morewith17.Useful Expressions18. 1. affect our livesLine 1 2. in the last thirty years =in the past thirty years 3. in the past Line 4 4.connect to Line 10 5.be pessimistic about在过去的三十年里在过去连接到对悲观影响着我们的生活Line 21 6. be optimistic aboutLine 24 7. find out holiday offersLine 25 8. all sorts ofLine 32 9.a huge growth of shopping on the Net Line 36 10. get entertainmentLine 39 11. mail serviceLine 46 12 as if =as though对乐观各种各样的网上购物大增长进行娱乐活动邮政服务似乎，好像查找节日特惠价Homework 1. Retell the text . 2. Discussion: Do you feel pessimistic or optimistic about the future of the Internet? Why?21.感谢亲观看此幻灯片，此课件部分内容来源于网络，如有侵权请及时联系我们删除，谢谢配合！。