《Unit-4-Cyberspace-Lesson-2》課件-北師大版必修2

1、Unit 4 CyberspaceLesson 2World Wide WebWhat does www. stand for?In what way can the Internet be helpful for your study and life?Do you know anything about the history of the Internet?ARPANET was started by the US Dept.of Defense for research. It is theoriginal basis for what now forms theInternet. I

2、t was opened to non-militaryusers later in the 1970s.The packet switching of the ARPANET was based on designs by Lawrence Roberts (1937- ), of the Lincoln Laboratory.The ARPANET was the predecessor to the modern Internet.The first international Connections toARPANET are established. The TCP/IP Proto

3、col established, andthe “Internet” is formed as a connectedset of networks using TCP/IP.DNS (Domain Name Server) introducedto the Internet, with then consisted ofabout 1,000 hosts. Web traffic over theInternet increased by 300,000 %.Listen and answer the questions.The Internet.Communication after a

4、nuclear war.1. Whats the listening text about?2. What worried the Pentagon in the 1960s?3. When did people start calling the network the Internet?4. When did the Internet really begin to grow fast?In the mid-1990s.In the 1980s.Listen again and tick the words you hear.Manchester University, Britain,

5、Internet, military, America, Pentagon, communications, nuclear war, linking, network, share ideas, entertainment Fill in the blanks with the words you hear. In _, the Pentagon _ communications after a nuclear war. And in 1969 they thought of _ computers into a network. And then people in universitie

6、s all over the world began to use the network to _. They use it for work and _ .the 1960sworried aboutlinkingshare ideasfor funDiscussion Discuss with your partner: 1. What do you use the Internet for? 2. What are the advantages and disadvantages of the Internet? Which “website” on this page can you

7、 visit to do these things? (Ex. 4) find out whats going on in your town look for a job find out the latest world news get information for a school history project write to your friends by e-mail buy clothes(3)(1)(6)(2)(5)(4)Listen to a telephone conversation between two people in Brighten. Which thi

8、ng from the Internet page do they decide to do? Go to the cinema on Friday evening to see Richard Baileys new film, Virtual Planet.Listen to the conversation again. Complete the Function File with words and phrases from the list.Answers:1. 9732732. This is3. please4. hang on5. are you up to6. Sorry?

9、7. Why dont we8. Do you fancy 9. Would you like10. I cant 11. Id love to12. Id better13. Lets 14. See you Underline the stressed words.Hello, Mrs. Turner. This is Mandy.What are you up to this weekend?Oh good. Why dont we go on Saturday morning?Well, I cant mm Ive got a music lesson on Saturday morn

10、ing.Do you fancy doing something on Friday night?Well, Id better go now.Lets meet at 6:30, outside the cinema._Make notes about what youd like to do at the weekend.Work in pairs with your partner phoning each other. Making suggestions, accepting or rejecting the suggestions and finally agreeing what

11、 to do and making arrangements.SpeakingExampleA: Hello, 988167.B: Hi, this is Tom.A: Hi, Tom.B: What are you up to this weekend, John?A: Me, nothing. Im not doing anything this weekend. Why?B: Lets do something. Ive printed out the Internet page.A: Whats on?B: Just hang on a second B: On Friday nigh

12、t theres a disco A: Sorry?B: Theres a disco on Friday night.A: Great, Id love to. Lets meet at 9:00 outside my house.B: Right, see you then.A: See you.Language points1. hang on 別掛斷；堅(jiān)持下去；系于 Hang on! Ill be back. Hang on at your present job until you can get another. It all hangs on whether he is will

13、ing to help us.hang up 掛斷電話hang around / about閑蕩, 徘徊, 逗留 hang over 籠罩, 威脅, 擱置待解決 2. get in touch 和取得聯(lián)系 I asked Xiao Zhou to get in touch with them. How can I get in touch with you? Im trying to get in touch with my brother. keep in touch (with) 和取得聯(lián)系 lose touch (with) 和失去聯(lián)系Go and see what these naug

14、hty boys are up to.I havent seen much of you lately. What have you been up to?Whether we will go to the park is up to your brother.This hotel can accommodate up to 500 guests.3. be up to 做；從事于；由某人決定；多達(dá)He rejected their offer of a job. He asked her to go to the movies three times, and each time she r

15、ejected him.The child was rejected by his parents.I was sorry to hear that she was rejected by all universities. The press rejects the articles which have been published. 4. reject v.拒絕；不接受；拒收,不錄用；表示(因質(zhì)量差)不出售/ 出版reject n. 不合格者；廢品Rejects from the English exams cant graduate from our school.Please put

16、 the rejects into the box in the corner. refuse 是普通用語，指“堅(jiān)決、果斷或坦率地拒絕”；可接動詞不定式，表示拒絕做某事，也可接名詞，表示不接受。 reject 語氣比 refuse 強(qiáng)，表示斷然拒絕。如果不同意一種意見或信仰，要用 reject。主語可以是人或物，后接名詞，不能接動詞不定式。 decline指較正式地、有禮貌地謝絕 。reject, refuse和decline 的區(qū)別5. suggestion和advice的區(qū)別 suggestion表示“意見，建議，提議”，特指為了改進(jìn)或解決某一問題而提出建議，辦法等，但不一定正確，僅供參考

17、。語氣比advice客氣、委婉。多用作可數(shù)名詞，常和介詞about，as to，at，on，by，with等搭配。 This trip was made at his teachers suggestion. I wonder if I can get some advice from you. The boy took my advice as to what he should do. advice是普通用詞，側(cè)重依據(jù)個人經(jīng)驗(yàn)、學(xué)識和正確判斷而提出的忠言。是不可數(shù)名詞，常和介詞against，at，by，for，of，on，to，about，with等搭配。1. p_ 2. f_ 3. f

18、_ 4. s_ 5. a_a piece of work that is planneda popular style in clothes or hair at a certain time or in a certain place to want something or want to do something an idea that is advised a plan that you make so that something can happenproject fashion fancy suggestion arrangement Write the words according to the meanings.1. Doing _ (科學(xué)的) research requires not only money, but also time and energy.2. So what are your _ (建議) about improving the quality of the product?3. The style of the clothes that the