A book on the Internet A computer

 the first generation ( 第一代 ) of computers.

The World Wide Web

An English scientist called Tim Berners-lee

Massachusetts Institute of Technology 马萨诸塞洲技术学院

Listen to the tape and answer the questions: What is the Internet? What is the Internet? How did it start? How did it start? What is the World Wide Web? What is the World Wide Web? Who invented the World Wide Web? Who invented the World Wide Web?

DARPA DARPA The U.S. Defence ARPA The U.S. Defence ARPA ARPA: ARPA: Advanced Research Projects Agency 高级研究计划局 高级研究计划局 NSF NSF The US National Science Foundation The US National Science Foundation 美国国家科学基金会 美国国家科学基金会

Decide if these sentences are true (T) or false (F) 1.There are millions of pages of information on the Internet 2.The US army were the first people who used an Internet system. 3.Universities started using the Internet at the same time as the army. 4.The percentage of websites in English is getting smaller. 5.Tim Berners-Lee make it possible for scientists to use the Internet. 6.He has made a lot of money from his invention

Decide which sentence means the same as the extracts from the reading passage. 1.For fifteen years, only the US army could use this system of communication. (a)The US army only used this system for 15years. (b)After 15 years, other people were able to use it as well. 2. The World Wide Web…..allows computer users to access information….. (a)Computer users can access information because of the World Wide Web. (b)You need permission from the World Wide Web before you can access information. 3.About 80 percent of web traffic is in English, but this percentage is now going down. (a)Web traffic in English is becoming less interesting (b)The percentage of English websites is getting smaller. 4. He came up with the idea of the World Wide Web. (a)It was his idea (b)He found the idea in a book.

DARPADARPANET NSFNET NSF The World Wide Web Inter-Network (Internet) In 1969 In 1984 The US army

Read the passage again and fill in the blanks The Internet, the biggest _____ in the world, which _____ millions of pages of _____, is _____ through a computer. IN 1969, DARPA,a US______ organization, ______ a new network of computers _____DARPANET and only ________ by the US army. Then in 1984, the NSFNET network was _______, _______ “Internet”, and it then became _______ for universities to use the system_______.The web is a computer network that allows computers users to _______ information ______ millions of websites ______ the Internet. The web_______in 1991 by an English scientist, who ______ the idea in He also ______ the first “web browser”.____________the web and the Internet ____. source of information consists of date accessible defence called created used started known as possible as well accessfrom via was invented came up with designed From that moment on grew 7

 Accessible adj. 易接近的 Our principal is accessible to the students.  Access n. means of entering; entrance. Access to the resort( 度假胜地 ) is quite easy. 这个度假胜地很容易到达。 easy of access Language points:

millions of thousands of hundreds of scores of dozens of

 Consist of 由 … 组成，由 … 构成 The club consists of more than 200 members.  Consist in something (not in progressive forms) : depend on （在于，存在于） The beauty of Venice consists in the style of its ancient buildings. 威尼斯之美在于其古建筑 的风格。  Consist with 与 … 一致； 相符 他言行不一。 His action does not consist with his words.

Develop vt & vi 使发达；使发展；使发育 He believes that sport can developed mind and body. 常用词组 develop the habit of doing something 养成作 …… 的习惯 develop an interest in something 培养对 …… 的兴趣

It be /become +adj.+ for sb./sth. to do sth. It is important for the students to learn English well. 常用形容词有： important, necessary, possible, impossible, unusual, popular

Be known as : 作为 … 而出名 George is known as a famous singer. Be known for 因 …… 而出名 The place is known for its fruit, especially its seedless grapes. Be known to 被 …… 所熟知 It is known to us all that theory comes from practice. Via prep. by way of He sent me a letter via one of my friends. At the moment 此刻 At any moment 在任何时候 For the moment 目前，暂时 For a moment 片刻，一会儿 At the last moment 在紧要关头

Go down 下降 ( 太阳，月亮 ) 落下 The sun is going down. 价格下跌 Price don’t seem to be going down. 退烧 I’m glad your temperature has gone down. Rise vi. 升起，提高，上涨（不跟宾语） The sun rises in the east. Raise vt. 提高，抬起（必须跟宾语） The student raised his hand to answer the teacher’s question.