1、B3U3 The world onlineLead-inThe steam technology revolution(蒸汽技术革命）The power technology revolution(电气技术革命）The information technology revolution(信息技术革命）industrial intelligence and integration(工业智能&一体化）Lead-inonline educationLead-inonline medicaltreatmentonline ride-hailingonline shoppinginstant messa
2、ge.PresentationI 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我希望我们能用互联网跨越障碍,联结文化。联结文化。蒂姆蒂姆伯纳斯伯纳斯李李 该句出自英国计算机科学家蒂姆伯纳斯李。他是万维网(World Wide Web)的发明者。这句话体现了伯纳斯李对互联网的美好愿景。他希望互联网能发挥其互联互通的作用,跨越各种障碍,成为不同文化的纽带,带来信息交流的全新模式。Pre-readingNow,lets read a web page to
3、 know some inventions.a very important stage or event in the development of sth.Welcome to the unitThe 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 usern
4、ame from the name of his machine.While-readingThe 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 coffe
5、e.While-readingEmojis,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.While-readingTry to introduce one invention of Internet:post-reading
