北师大版教案Unit 4 Cyberspace Lesson 1 Tomorrow's world

北师大版教案Unit 4 CyberspaceLesson 1 T omorrow’s WorldTeaching aims:To use the title of a text to predict the content.To practise using vocabulary of cyberspace.To practise using will and going to to talk and write about the future.Teaching difficulties: To revise Present Simple and Present Continuous.Teaching Aids: computer and cassetteTeaching procedures:Ⅰ. W arming upWhat computers and internet bring us?convenient, high efficientCompared to 20 years ago how do you think technology will change our lives?For example:Go shopping on line.Needn‟t carry cash and use credit cards.Instead of going to the bank you can use a computer and a telephone to pay for bills.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 question 2 above.1.With the development of computers, our life may change in shopping andcommunicating ways2.The text infers to us that worry is not necessary and computers and the Internetonly do good to us.3.Some experts say in the future we will not go to school in the classroom likeus.4. 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.Keys: T F T F T TLearning vocabularyMatch the vocabulary from the text below with the definitions.hacker, chaos, terrorist, the Net (Internet), virtual reality, crash1. a person who enters other people‟s com puter programmes in secret2. The use of computers to make situations feel and look real.3. have an accident by violently hitting something.4. some who does terrible things to harm countries, governments and people.5. computer system that allows millions of people around the world to share information6. A terrible situation in which everything goes wrongKeys: 1. hacker 2. virtual reality 3. crash 4. terrorist 5. the Net (Internet) 6. chaosCorrect error1. In 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.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, I‟m optimistic about the future of internet.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.Keys: 1. grew 改为has grown 2. make前加and 3. order 改为book 4. connect改为connected 5. clear后加that 6. of 后加the 7. much 改为more 8. as 改为withWe can feel convenient, we can do all kinds of things from the Internet at home, such as buy books, find out about holiday offers, book tickets and so on.Some traditional things will disappear.We may live in a virtual world.Hacker can get into the computers of banks and government so that change data or steal away important information.Terrorists will attack the world‟s computers, cause chaos, make planes and trains crash even and cause nuclear war.V oice your opinionDo you feel pessimistic or optimistic about the future of the Internet? Why? Language points1.In 1983, there were only 200 computers connected to the Internet.= which were connected to the Internet.computer 和connect 是被动关系,因此connected to 是过去分词做定语来修饰computer,相当于一个定语从句。

It is surprising that there were 3oo gold coins buried underground.＝which were buried underground.真是令人惊奇，地下埋了300 枚金币。

There are so many people watching the big fire in the street.=who watched the big fire in the street.People 和watching 是主动关系watching 是现在分词做定语表主动来修饰people 相当于定语从句。

2.Some experts are pessimistic about the future.一些科学家对（计算机主宰的）未来表现出悲观的态度。

be pessimistic/optimistic about 对…悲观/乐观I‟m rather pessimistic about the present situation.我对目前的局势感到悲观。

3. It is clear that we are going to see an explosion of shopping on the Internet.很显然，不远的将来我们就会看到网上购物的狂潮。

It作形式主语，真实主语是that引出的主语从句。

＝that we are going to see an explosion of shopping on the Internet is clear.It is clear that in the next few years the Earth‟s climate will change.=That in the next few years the Earth‟s climate will change.4. ..the use of computers with sounds and pictures that make you feel as if you are in a real situation.(虚拟世界)是计算机通过声音和图像模拟现实，以使人感到仿佛置身于一个真实的空间。