高中英语第二册 Lesson 1课件.ppt

Welcome to our school,含山县林头中学 陈进方,Unit 4,Cyberspace,Lesson 1 Tomorrows World,The Future of Cyberspace,Step 1 Warming up,Imagine 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 Internet read 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 reality,Step 2 Pre-reading,Listen to the record of the article and check your guess to question 2 above.,the Internet,virtual reality,Learning vocabulary,Read the article and match the vocabulary from the text below with the definitions.,hacker, chaos, terrorist, the Net (Internet), virtual reality, crash,1、a person who enters other peoples computer programmes in secret,hacker,2. The use of computers to make situations feel and look real,virtual reality,3. have an accident by violently hitting something,4. someone who does terrible things to harm countries, governments and people,crash,terrorist,5. computer system that allows millions of people around the world to share information,the Net,6. A terrible situation in which everything goes wrong,chaos,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 growth,2,4,3,1,Questions:,Read the passage carefully and answer the following questions.,Why are some experts pessimistic about the future?,1. One worry is crime in cyberspace. Young hackers can get into the computers of banks and governments. 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?,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 years 2. We are going to see a huge growth in shopping on 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 schools,1.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 grown,and,book,Correct the errors of the sentences.,Step 4 Post reading,4. 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.,connected,that,the,7. As society develops, computers will make our life much convenient. 8. The mail service may also disappear as the increasing use of e-mail.,more,with,Useful Expressions,1. affect our lives Line 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 about Line 24 7. find out holiday offers Line 25 8. all sorts of Line 32 9.a huge growth of shopping on the Net Line 36 10. get entertainment Line 39 11. mail service Line 46 12 as if =as though,对