Unit3 The world online Welcome to the unit & Reading (I) 课件-2022-2023学年高中英语牛津译林版（2020）必修第三册

Unit 3 The world online Welcome to the unit & Reading (I) 1 Lead in I hope we will use the Net to cross barriers and connect cultures. - Tim Berners-Lee 我希望我们能用互联网跨越障碍, 联结文化。 — 蒂姆 伯纳斯 李 1 Lead-in 感谢您使用我们的PPT模板,请在此输入您需要的文字内容 What do you often do on the Internet? 1 Let’s do a little survey first. 3 The first email was sent in 1971 by Ray Tomlinson. It was a test message to himself. He wanted to see whether he could send a message from one computer to another. He chose the "@" sign to separate the username from the name of his machine. Read and complete. 1 Who was the first email sent to? (It was sent to Ray Tomlinson himself.) 4 The first webcam was created by computer scientists at the University of Cambridge in 1991. What did it film? A coffee pot outside the office. These scientists used the webcam to see from their desks whether the pot was empty to avoid wasted trips for coffee. 1 Actually, emoji is just one of the milestones in the development of the Internet. Let’s see two more, which were created earlier and still widely used today. What did the first webcam film? (A coffee pot outside the office.) 5 Emojis, small digital images used to express ideas or feelings in electronic communication, were created in 1999 in Japan. The creator was inspired by Japanese comics, street signs and Chinese characters. Soon emojis took off throughout the world. Oxford Dictionaries selected , the "Face with Tears of Joy" emoji, as the Word of the Year 2015. 1 Speaking of chatting, I believe almost every one of you has used these small digital images. Do you know when and where were they created? (1999 in Japan) Where were the inspirations from? 6 Read and complete. The first email was sent _ by Ray Tomlinson. It was a test message to himself. He wanted to see whether he could _ _ from one computer to another. He chose _ to separate the username from the name of his machine. in 1971 message the “@” sign send a 1 The first webcam was created by the University of Cambridge _. What