2019年北师大版高中英语必修2 Unit 4 Cyberspace Lesson 1 reading 课件 （50张ppt ）

课件50张PPT。北师大 高一 (2) Unit 4Unit 4 CyberspaceLesson 1 Tomorrow's WorldImagine life in the next twenty years. How do you think technology will change our lives? For example: All cars will have computers.smartconvenientmulti-functionalsend SMS, call, alarm clock, games, take photos, mp3, go on line …typical cell phoneOnly for callsHave you ever seen such a camera?Digital cameragramophonemp3walkmanmp4Can you imagine what a computer looked like in the 1980s?But in the 21st century, …1. Imagine what happens in the next twenty years. 2. Is it possible that the computer gives us disaster?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 realityRead the article quickly and check your guess to the question above.With the development of computers, our life may change in shopping and communicating ways. The text infers to us that worry is not necessary, computers and the Internet only do good to us. Some experts say in the future we will not go to school in the classroom like us.True or FalseTFT4. In the future it is possible that people live in another world of outer space. 5. The text tell us you can do many things but needn’t go to the place yourself. 6. Because of the rapid development of Internet television and the mail will be replaced by computer.FTTLearning vocabularyMatch the vocabulary from the text below with the definitions.hacker, chaos, terrorist, the Net (Internet), virtual reality, crashA person who enters other people’s computer programmes in secrethackerThe use of computers to make situations feel and look realvirtual realityHave an accident by violently hitting somethingcrashSomeone who does terrible things to harm countries, governments, and people.terroristComputer system that allows millions of people around the world to share informationthe NetA terrible situation in which everything goes wrong.chaosIn the last thirty years, the Internet grew rapidly. 2. Terrorist may “attack” the world’s computers, cause chaos, make planes and trains crash. 3. It is convenient to order tickets from the internet.has grownandbook∧Correct error4. 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, I’m optimistic about the future of internet.connectedthatthe∧∧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. morewith1. What possible changes do some experts believe the Internet can bring to our lives?We can feel convenient, and we can do all kinds of things on the Internet at home, such as buying books, reading news, booking tickets and so on.Some traditional things will disappear. We may live in a virtual world.2. Why are some experts pessimistic about the future?Hackers can get into the computers of banks and governments so that chan ... ...