1、Unit 4 CyberspaceCyberspace is the electronic medium of computer networks,in which online communication takes place.It is virtual space we pass through when surfing the Internet.What is cyberspace?Have you ever written an e-mail message,read or written Internet pages?How do you use the computer and
2、how often do you surf the Internet?Do you watch movies on the computer?Have you watched the following movies?2004-The Day after Tomorrow is a movie about global warming and how it will destroy cities and change the world in the future.The Day After Tomorrow2001-A.I.is a movie about a boy who doesnt
3、know that he is really a robot.1866-From the Earth to the Moon is a book about people traveling to the moon.Have you read the books?1977-2004-The movies that make up Star Wars are about wars in space.There are many amazing characters in these movies.1.Which of the films and books mentioned on this p
4、age have you seen or read?Which of the predictions in them:a)have already come true?b)do you think will come true in your lifetime?What other predictions do you know from science fiction books or films that have come true?2.Listen to four experts.Which predictions are they discussing?Use the Key Wor
5、ds to help you.Key Words robot,artificial human,cyberspace,planets climate,global warming,world flooding,time travel,virtual reality,virus1.an electro-mechanical machine,usually guided by computer or electronic programming,and thus able to do tasks on its own.2.one looking and moving like a personro
6、botartificialhumanGuess the meaning of the following words.3.a computer network consisting of a worldwide network of computer networks4.the weather conditions of the world5.the increase in the average temperature of the earths near surface air and oceansglobal warming cyberspace planets climate6.an
7、imaginary world 7.a small,living thing that causes people sick;a software program 8.moving between different moments in time or betweendifferent points in space9.a large amount of water covering most of the worldworld flooding time travelvirtual reality virusAnswers:1.making artificial humans2.flooding in different countries3.time travel4.a virus develops which we have no power to stop
