牛津译林版（2019）必修 第三册Unit 3 The world online Welcome to the unit 课件(共20张PPT)

(共20张PPT)
Which is the present situation
That’s it! Go home, right now.
Go outside and have some fun!
Who are you
Digital natives 数字原住民
Generation-Z
Generation Z (Gen-Z) are people born between the mid-1990s and the early 2000s. They are sometimes called "digitalnatives" because they have grown up with the Internet,mobile phones, and social media since they were children.
How many industrial revolutions do we have
Lead-in
The
first
The second
The third
The 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）
What do you usually do on the Internet
Lead-in
When you are on the Internet, what do you usually do
search for information
watch the latest news
study on the internet
shop online
chat on the Internet
play Internet games
watch films and soap operas, etc.
Internet+
online education
Lead-in
online medical
treatment
online ride-hailing
online shopping
instant message
...
The Internet is of significance to our daily life and now we can not live without it.
Presentation
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
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-reading
Now, let's read a web page to know some inventions.
We use Internet everyday, but do you know its development milestones
a very important stage or event in the development
of sth.
Welcome to the unit
Lead-in
There are many important milestones in the development of the Internet.
email
webcam
emojis
Do you know their origins
Now, let's read a web page and complete the blanks.
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
send a message
the “@” sign
The first webcam was created by computer scientists at the University of Cambridge ________. What did it film A coffee pot _______ the office. These scientists used the webcam to see ______________ whether the pot was empty to avoid wasted trips for coffee.
in 1991
outside
from their desks
While-reading
Emojis, small digital images used to ________________________ in electronic communication, were created _________ in Japan. The creator was inspired by Japanese comics, street signs and ___________________. Soon emojis __________ throughout the world. Oxford Dictionaries selected, the “Face with Tears of Joy” emoji, as the Word of the Year 2015.
express ideas or feelings
in 1999
Chinese characters
took off
While-reading
Discuss the following questions in pairs.
Which of the above inventions do you use most frequently Why
I use emojis most frequently when I send messages to my friends. They look cute, and are a quick and easy way to express how I am feeling.
Homework
Preview Reading and write down the answers to Exercise A1 , A2 and B1 in your textbooks