高中英语牛津译林版 (2019)必修 第三册Welcome to the unit示范课课件ppt

这是一份高中英语牛津译林版 (2019)必修 第三册Welcome to the unit示范课课件ppt，共20页。PPT课件主要包含了Lead in ，Keys，Wallet，Internet，Discussion，WEB，Email，Webcam ，Emojis ，Inventor 等内容，欢迎下载使用。
Talk tgether abut what is called the internatinal wrld
What kinds f things yu need t bring ut with yu all the time?
Fingerprint lck
Alipay/WeChat
Why d we use smart phne frequently?
messagesnline shppingsearch infpst inf…
D yu have easy access t the Internet? If s, hw d yu ften access it?What d yu usually d n the Internet?
I hpe we will use the Net t crss barriers and cnnect cultures.— Tim Berners-Lee
Hw d yu feel abut the saying?
Net: Internet, Wrld Wide Webbarriers: territry, ages, …culture: language, backgrund…
Welcme t the unit
Tim Berners-Lee
He was brn in Lndn, England in 1955. He studied science at Oxfrd University. He made his first cmputer frm an ld televisin at the age f 21. In 1989, Tim Berners-Lee invented the Wrld Wide Web (WWW) all by himself. He received A.M. Turing Award in 2017.
Let’s watch a shrt vide.
There are many imprtant milestnes in the develpment f the Internet. Read the web page belw and discuss the fllwing questins in pairs.
An event marking a significant change r stage in the develpment f smething
When we speak f imprtant milestnes in the develpment f the Internet, what can yu think f?
Can yu predict what might tell us abut the three items?
Histry, imprtance, inventrs, functin, etc.
The first email was sent in 1971 by Ray Tmlinsn. It was a test message t himself. He wanted t see whether he culd send a message frm ne cmputer t anther. He chse the “@” sign t separate the username frm the name f his machine.
The first webcam was created by cmputer scientists at the University f Cambridge in 1991. What did it film? A cffee pt utside the ffice. These scientists used the webcam t see frm their desks whether the pt was empty t avid wasted trips fr cffee.
Original purpse
Emjis, small digital images used t express ideas r feelings in electrnic cmmunicatin, were created in 1999 in Japan. The creatr was inspired by Japanese cmics, street signs and Chinese characters. Sn emjis tk ff thrughut the wrld. Oxfrd Dictinaries selected , the "Face with Tears f Jy" emji, as the Wrd f the Year 2015.
Functin and inventin
Which f the abve inventins d yu use mst frequently? Why?
What ther facts d yu knw abut the Internet?
Seventeen-year-ld teenager, Jhn Jansn 1. ________ (hnur) at the Lifesaver Awards last night fr giving first aid n his neighbur after a shcking knife attack. Jhn2. ________ (study) in his rm when he heard screaming. When he and his father rushed utside, they fund Anne Slade, their neighbur, had been stabbed repeatedly with a knife. She was lying in her frnt garden, 3. ________ (bleed) heavily. It was Jhn’s quick actin and knwledge f first aid4. ________ saved Ms Slade’s life. He 5. ________ (immediate) used what he culd find n the spt 6. ________ (treat) the mst severe injuries t Ms Slade’s hands until the ambulance came. Befre receiving their awards last night, Jhn and nine ther life savers 7. ________ had saved the life f anther attended a special receptin yesterday 8. ________ (hst) by the Prime Minister. “I’m prud 9 ________ what I did but I was just ding what I’d been taught,” Jhn said. Jhn’s experience shws that a knwledge f first aid can make a real10. ________ (differ) in ur daily life.
exercise当堂练习
1.was hnured2.was 　6.t treat　7.　10.difference
Search ther inventins abut Internet r WWW, share them t the class in next lessn.