Unit 3 The world online Welcome to the unit(牛津译林版 选修七）.ppt

Welcome to the unit Brainstorming Do you know how people kept in touch with each other in the past? write letters make a phone call online chat or send email Discussion Do a survey among your classmates to find out which one do they prefer to use to keep in touch with their friends and the reason. Lead in Read the following sentences and find some words that are used as computer terms and what they mean as computer terms. Which programme would you like to watch tonight? As a computer term, it means something that we use to control or operate a computer. I hate to clean windows. Windows is a kind of computer program developed by Microsoft. The music from the keyboard sounds like music from a real piano. A keyboard is a set of keys on a computer that help you operate the computer or key in words. Julie wants to have a pet mouse. A mouse is something that you control with your hand to move the cursor on the computer screen. Talk with your partners about what you can do with the Internet. Search for information Communication online Homework Write a passage about advantages and disadvantages of using the Internet. Preview the reading. * Unit 3 The world online send postcard send telegraphs or faxes Memory is something you may start to lose with age. Memory is a space in the hard drive of a computer that helps you store the information. Do you know how to find information on the Internet using a searching engine? What search engines do you know or often use? Which is your favorite search engine? Why? Shopping online Have you ever heard of shopping online or bought anything online? What do you think would be the advantages/disadvantages of online shopping? What devices do you need if you want to talk with people online? What are the good points and bad points of online talking? Which way of communication do you prefer, talking face to face or talking