北师大版英语必修二Unit4Lesson1Tomorrowsworld课件

高中英语课件madeofcanruohanxingWelcome to our schoolUnit 4Lesson 1Lesson 1Tomorrows WorldTomorrows WorldStep 1 Warming upImagine life in the next twenty years.How do you think technology will change our lives?Example:All cars will have computers.Go shopping online.Neednt carry cash and use credit cards.Instead of going to the bank you can use a computer and a telephone to pay for bills.have virtual reality schools communicate by e-mail get new films on the Internet get all our entertainment on the Internetread newspapers on the Internet.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-readingListen to the record of the article and check your guess to question 2 above.the Internetvirtual realityLearning vocabularyRead the article and match the vocabulary from the text below with the definitions.hacker,chaos,terrorist,the Net(Internet),virtual reality,crash1、a person who enters other peoples computer programmes in secrethacker2.The use of computers to make situations feel and look realvirtual reality3.have an accident by violently hitting something4.someone who does terrible things to harm countries,governments and puter system that allows millions of people around the world to share informationthe Net6.A terrible situation in which everything goes wrongchaosStep 3 While-readingListen to the tape again and match the paragraphs with these headings.a)Pessimistic opinions b)Seeing the future c)Optimistic opinions d)The Internet growth2431Questions: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 computers of banks and governments.3.3.Terrorists“attack”the worlds computers,cause chaos,and make planes and trains crash.2.What possible changes do some experts believe the Internet can bring to our lives?already1.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.3.How is our future in virtual reality?1.The use of computers with sounds and pictures that makes you feel as if you are in a real situation.2.Virtual reality will become 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 computers,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 reading4.In 1983,there were only 200 computers 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.connectedthatthe7.As society develops,computers will make our life much convenient.8.The mail service may also disappear as the increasing use of e-mail.morewithUseful Expressions1.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的三十年里在过去在过去连接到连接到对对悲观悲观影响着我们的生活影响着我们的生活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对对乐观乐观各种各样的各种各样的网上购物大增长网上购物大增长进行娱乐活动进行娱乐活动邮政服务邮政服务似乎，好像似乎，好像查找节日特惠价查找节日特惠价Homework1.Retell the text.2.Discussion:Do you feel pessimistic or optimistic about the future of the Internet?Why?