编辑ppt,Unit,3,Wele to the unit,A world of connections,编辑ppt,Unit 3,课件描述：,本课的四幅图片构成的海报介绍了因特网及其用途。学生将学会谈论因特网，把世界连接起来，所带来的好处和不利之处，以及因特网将来的用处。,编辑ppt,The Internet connects people all over the world. The Internet has both positive and negative aspects.,编辑ppt,Talk about the puter.,Step 1: lead-in,编辑ppt,Computer terms,Which programme would you like to watch tonight?,A programme is something that we use to control or operate a puter.,编辑ppt,The music from the keyboard sounds like music from a real piano.,A keyboard is a set of keys on a puter that help you operate the puter.,Computer terms,编辑ppt,I hate to clean windows.,Windows is a kind of puter program developed by Microsoft.,Memory is a space in the hard drive of a puter to store information.,Computer terms,Memory is something you may start to lose with age.,编辑ppt,Julie wants to have a pet mouse.,Mouse is what you control with your hand to move the cursor on the puter screen.,Computer terms,编辑ppt,Do you know how people kept in touch with each other in the past? Then how people keep in touch with each other now? What are your experiences using the Internet?,Step 2: Brainstorming,编辑ppt,What is the Internet?,The Internet, also called the Net, is a collection of puters connected in a worldwide network.,编辑ppt,What are the functions of the Internet?,编辑ppt,Now work in pairs and have a discussion about each of the pictures.,Step 3: Sharing information,编辑ppt,Picture 1,Search for information on a variety of topics.,编辑ppt,1. What can people do on this website? 2. What do we call this kind of website that provides searching services? 3. How can you find information on the Internet using a search engine? 4. What search engines do you know or often use? Which is your favourite search engine?,编辑ppt,Picture 2,Shop for the top brands at the best prices all over the world.,编辑ppt,1. What do you think would be the advantages of buying things online? 2. What do you think would be the disadvantages of online shopping?,编辑ppt,Picture 3,Keep in touch with family members wherever you are in the world.,编辑ppt,1. Have you ever tried talking with your parents or friends online? 2. What devices do you need if you want to talk with people online? 3. What are the good points and bad points of online talking?,编辑ppt,4. Which way of munication do you prefer, talking face to face, talking over the phone, talking online or talking online with a web-camera? Why?,编辑ppt,Picture 4,What next? The future has no limits.,编辑ppt,1. Have you tried other online services that are not mentioned here? Which ones? 2. What role do you think the Internet will play in the future? 3. Do you think it is a good idea to “live” on the Internet pletely?,编辑ppt,1. What do you think the most important benefit of the Internet is?,2. Do you think the Internet has any negative aspects to it?,Step 4: Discussion,3. In what ways will the Internet improve our lives in the future?,编辑ppt,Using the Internet,Step 5: Debate,编辑ppt,Step 6: Homework,Write a passage about advantages and disadvantages of using the Internet. Preview the reading.,