1、2021/8/11 星期三12021/8/11 星期三2The Internet is the biggest source of information in the world，and its accessible through a computer.It consists of millions of pages of data.In 1969，DARPA，a US defence organisation，developed a way for all their computers to “talk” to each other through the telephone.They

2、 created a network of computers called DARPANET.2021/8/11 星期三3For fifteen years，only the US army could use this system of communication.Then in 1984，the US National Science Foundation (NSF) started the NSFNET network.It then became possible for universities to use the system as well.NSFNET became kn

3、own as the InterNetwork，or “Internet”2021/8/11 星期三4The World Wide Web(the web) is a computer network that allows computer users to access information from millions of websites via the Internet.At the moment，about 80 percent of web traffic is in English，but this percentage is going down.By 2020，much

4、web traffic could be in Chinese.2021/8/11 星期三5The World Wide Web was invented in 1991 by an English scientist，Tim BernersLee.BernersLee built his first computer while he was at university using an old television！He came up with the idea of the World Wide Web in 1989 while he was working in Switzerla

5、nd.2021/8/11 星期三6BernersLee made it possible for everyone to use the Internet，not just universities and the army.He designed the first “web browser”，which allowed computer users to access documents from other computers.From that moment on，the web and the Internet grew.Within five years，the number of

6、 Internet users rose from 600,000 to 40 million.2021/8/11 星期三7The Internet has created thousands of millionaires，but BernersLee is not one of them.Everyone in the world can access the Internet using his World Wide Web system.He now works as a lecturer at Massachusetts Institute of Technology in Bost

7、on.2021/8/11 星期三8因特網是世界上最大的信息來源(source)，它可以通過電腦進入(accessible)。它由數百萬頁數據(data)組成(consist of)。1969年，美國國防(defence保護；防衛)部的一個組織DARPA研發出了一種辦法，使他們所有的電腦通過電話相互“交談”。他們創建(create)了一個叫DARPANET的電腦網絡(network)。2021/8/11 星期三915年間，只有美國軍隊能夠使用這種通訊系統。然后在1984年，美國國家科學基金會啟動了NSFNET網絡系統。隨之，大學也(as well)可以使用這種系統。NSFNET作為互聯網絡或“因

8、特網”而聞名(become known as)。萬維網是一種電腦網絡，它允許電腦用戶通過(via)因特網從數百萬的網站上獲取信息。2021/8/11 星期三10目前，大約80%的網絡信息是用英文傳輸的，但這個比例(percentage)正在下降(go down)。到2020年，很多網絡傳輸可能會用漢語。萬維網是由一名英國科學家蒂姆貝爾納斯李在1991年發明創造的。讀大學時，貝爾納斯李利用一臺舊電視機制成了他的第一臺電腦。1989年當他在瑞士工作期間，提出了(come up with)(組建)萬維網的想法。 2021/8/11 星期三11 貝爾納斯李使人人都能使用因特網，而不僅僅是大學和軍隊。他

9、設計(design)了第一個“網絡瀏覽器”，允許電腦用戶從其他電腦上讀取文件(document)。從那時起(from that moment on)，網絡和因特網不斷發展壯大。在5年的時間里，使用因特網的人數從60萬上升到4千萬。2021/8/11 星期三12因特網造就了成千上萬的百萬富翁，但貝爾納斯李卻不是其中一員。世界上的每個人都可以利用他的萬維網系統訪問因特網。現在他在波士頓麻省理工學院擔任講師。2021/8/11 星期三13Talking on a mobile phone is expensive，so a lot of people send text messages.Text

10、messages are much cheaper than talking on a mobile phone，and you can make it even cheaper by shortening the words that you use.You can do this by taking out “unimportant” letters in the words (usually vowels) and using numbers instead of words (2to，3free，4for,8ate，so h8hate，etc.)You can also avoid u

11、sing punctuation like inverted commas.Here is an example：Im hm nw，why nt gv me a cll？(Im home now，why not give me a call？)2021/8/11 星期三14What do you think these text messages mean?Whr hv U bn？Iv bn wtng hrs fr a cllDo U wnt 2 g 2 th cnma tnite?I gt a txt mssge frm my frnd.Shes hvng a prty on Strdy.D

12、o U wnt 2 cm?Mobile phone users have developed a series of symbols to show how they feel.They are called emoticons，and there are some examples below.To read an emoticon，you have to look at it sideways.2021/8/11 星期三152021/8/11 星期三16用手機打電話很貴，所以很多人發短信。發短信比用手機打電話便宜得多，并且你還可以通過縮短(shorten)用詞使費用更低。你可以通過刪去單詞中“不重要”的字母(通常是元音)并使用數字代替單詞(2to,3free,4for,8ate，所以h8hate，等等)的方式來縮短用詞。你也可以避免使用標點符號，比如引號。下面是一例：(我現在在家，為什么不給我打電話？) 2021/8/11 星期三17你認為這些短語是什么意思？你去哪里了？我等電話等了幾個小時。你今晚想去看電影嗎？我收到一條朋