课件21张PPT。 The Internet and Telecommunications Some words about computerHard diskmonitormousescreenCD-ROMkeyboardStep 1 Lead-inDo you often surf on the Internet?
What do you usually do on the Internet? Step 1 Lead-inchat on the Internetdo online shoppingsearch for information123Step 1 Lead-insend an e-mail or cards to a friendplay games45Step 1 Lead-inStep 1 Lead-inChanging with the InternetWhat is the Internet?
What is the WWW?
Who invented the WWW?Teaching Aims （教学目标）1. Knowledge aim:To understand the whole passage and finish all the activities through fast reading and careful reading
2. Ability aim:To have a further understanding about the history and inventor of the Internet
3.Affective aim:To learn to use expressions to express their own ideas and take advantage of the Internet properlyReading and Vocabulary Q:What’s the main idea of the passage? A:It mainly tells us what ____________is and how it has ___________step by step. Step 2 Fast Reading SKILL:Read the first sentence and the
last sentence of each paragraph.
the InternetdevelopedRead the passage quickly and match the main ideas with the paragraphs.
Para.1( ) A.The inventor of the World Wide Web
Para.2( ) B.The development of the Internet
Para.3( ) C.The current condition of Berners-Lee
Para.4( ) D.The start of the Internet
Para.5( ) E.The definition of the World Wide Web
Para.6( ) F.The definition of the InternetFDEABCStep 2 Fast ReadingSKILL:Pay attention to the topic sentence of each paragraph.
What’s the Internet?
2. What is the WWW?
3. Who invented the WWW? When?The Internet is the biggest source of information in the world, and it is accessible through a computer.Tim Berners-Lee invented the WWW in 1991.Step 2 Fast ReadingWWW is short for the World Wide Web. It is a computer network that allows computer users to access information from millions of websites via the Internet. SKILL: Do remember to find the key words. Complete the following passage based on the content of the article.
The Internet is the biggest _____ of information in the world. It _____ ___ millions of pages of _____. In 1969, a US defence organization created a _____ of computers called DARPANET for the US ____. In 1984, the US NSF started the NSFNET network, which made it possible for _________ to use the system ___ _______.sourceconsistsofdatanetworkarmyuniversitiesaswell
The InternetStep 3 Careful ReadingWhat’s the WWW?
It’s short _____ the World Wide Web _____ is a computer network _____ allows computer users to _______ information from millions of websites ____ the Internet.
It’s like a highway of information, so there’s sometimes web ______. The percentage of the web traffic in English is _____ ______.forwhichthataccessviatrafficgoing downStep 3 Careful Reading
Tim Berners-Lee
Tim is an English scientist _____ invented the www
_____ an old television while he was at university.
In 1989, the idea of the invention ___ ___ ____ ____.
He ______ ___ _____ for the public to use the Internet.
The first web browser ________ by him _________
people to have ______ to documents from the computers.
_____ then _____, the web and the Internet grew.
The number of users _____ from 600,000 to 40
million. Not among those _________ _______
by the Internet, he’s only a _________ working in
an institute.whousingcame to his mindmade it possibledesignedallowedaccessFrom onrosemillionaires createdlecturerStep 3 Careful Reading
Fill in the blanks using correct forms or appropriate words.
The Internet is the biggest source of information in the world,1.___________ (consist) of millions of pages of data.
It 2. (date) back to 1969 when a US defence 3.________ (organise) developed a way for all their computers to “talk” to each other through the telephone.Thus DARPANET，a network of computers came into being.4. it was only used by the US army.Then in 1984，the NSF started the NSFNET network，which became 5. (know) as the Inter-Network.consistingdatesorganisationButknownStep 4 Post ReadingFill in the blanks using correct forms or appropriate words.
Later, an English scientist came up 6. the idea of the World Wide Web while he 7. (work) in Switzerland in 1989. He designed the first “web browser”，8. allowed computer users 9.__________ (access) documents from other computers. From that moment on，the Internet grew. Within five years,10. number of Internet users rose from 600,000 to 40 million. withwas workingwhich to accesstheStep 4 Post ReadingStep 5 DiscussionEvery coin has two sides.
The Internet also has its
advantages and disadvantages. broaden knowledge
easy to contact
search for information
do online shopping
watch live matches and other programs
see a doctor...
do harm to eyes
lazier and fatter
less chance to get along with others
spend too much time playing computer games and chatting
fail in the exam???Suggestionsgo online properly have a time limit
choose things which are valuable to our study and life
place study, health and safety before other things...Step 6 Writing Try to make a short passage about Going Online with the expressions above. Recently going online has become more and more popular with middle school students.
In my view, there are some advantages for students to go online.?Firstly,...Secondly,...
What’s more,...However, as a popular saying goes, every coin has two sides, and going online is no exception.To?begin?with,... In?addition,...What’s worse,...
As far as I’m concerned, we are supposed to go online properly.We should...What’s more important is that... 1. Polish the writing task.
2. What do you want to say to your friends who are addicted to (对…上瘾) online.Step7 Homework
