1、Unit 1 Reading 1 The evolution of video and sound devices 高中英语高中英语 必修（第三册）必修（第三册） Unit 3 The world online Welcome to the unit 3. What does the Internet mean to you? 1. Do you have easy access to the Internet? If so, how do you often access it? In which way do you access the Internet, using a mobile
2、device or other devices? 2. What do you usually do on the Internet? Lead-in Lead-in There are many important milestones in the development of the Internet. Lead-in When we speak of important milestones in the development of the Internet, what can you think of ? Free talk 1. What can you see from the
3、 three pictures attached to the three texts? We can see the “” sign of an email address, a webcam and some emojis. Free talk Each of the three texts, Text 1, Text 2 and Text 3 might tell us about emails, webcams and emojis respectively. 2. Can you predict what each of the three texts might tell us a
4、ccording to the pictures? Free talk 1. After you have finished reading the texts, to be exact, do you know what each text tells us about? Each of the texts tells us about the origin of the first email, the first webcam and the first emojis respectively. Free talk Text 1 is about the first email sent
5、 in 1971 by Ray Tomlinson, which was _ to himself. He chose the “” sign to separate the username from the name of his machine. Text 2 is about the first webcam created by the University of Cambridge in 1991, which filmed _ outside the office for researchers to see from their desks whether the pot wa
6、s full to avoid wasted trips for coffee. 2. Can you describe them? a test message a coffee pot Free talk Text 3 is about the earliest emojis, _ used to express ideas or feelings in electronic communication, created in 1999 in Japan. small digital images 1. Why are the three examples of the invention
7、s presented to us? Because they are typical examples of many important milestones in the development of the Internet, which as a result, have changed the world for the better. Free talk 2. What do you think contributed to the invention of the first email, webcam and emoji? I think the inventors curi
8、osity, motivation and inspiration contributed to the invention of them. Free talk 3. What can you learn from these examples? From these examples, we can learn that its peoples curiosity, motivation and inspiration that promote the development of the Internet and the whole world. Therefore, we should
9、 always keep curious, motivated and inspired in our daily life and should also be willing to take the challenges and bear the responsibility to change the world for the better. Free talk 4. Which of the above inventions do you use most frequently? Why? I use emojis most frequently when I message my
10、friends. They look cute, and are a quick and easy way to express how I am feeling. Free talk 5. What other facts do you know about the Internet? The term “surfing the Internet” was first popularized in print by Jean Armour Polly, a librarian, in 1992. In 2010, Finland became the first country to mak
11、e Internet access a legal right. Free talk knowledge laughter activity In what areas do you know the Internet is widely used? The Internet communication sorrow teacher challenge success dream excitement Free talk It seems that the Internet has been used in almost every area in our life, but do you think we can always trust the Internet? Why or why not? What do you think “the world online” really means? Why? Discussion Homework 1. Write down your use of the emails, webcams or emojis. 2. Finish the workbook. Homework 1. Read this article aloud. 2. Finish the workbook. 谢 谢 谢谢
