信息技术英语unit17

Unit 17The InternetChapter Four& Part4 Extensive Reading @ Part 1 Notes to Text@ Part5 Notes to Passage & Part 2 Word Study@ Part3 Practice on Text @ Part6 Practice on Passage@Part 1 Notes to TextThe Internet1) This network of networks is used for an extraordinary range ofpurposes --- long distance collaborations, retrieving freesoftware and documents, accessing library catalogs, logging in to supercomputers. 该网络的应用范围也特别广——远距离合作、检索免费软件和文档、查阅图书馆目录、登录到超级计算机上。

注释：破折号后面的long distance collaborations, retrieving free software and documents, accessing library catalogs, logging in to supercomputers都是名词性短语，用作同位语，说明前面所提到的名词purposes的具体内容。

2) In the Internet Passport, the Internet will be defined as thenetwork of networks which follow a set of rules known as the"Internet Protocol (IP) suite". 人们将因特网在它的证书中定义为网络群中的网络，该网络群遵循的是一套所谓的互联网协议集规则。

注释：注意定语从句which follow a set of rules known as the "Internet Protocol (IP) suite"中的关系代词which指代的先行词是networks而非network，所以用的是复数谓语动词形式；过去分词短语known as…修饰rules。

3) It means that any computer which is connected to the Internet can communicate with any other Internet computer thanks to the rules of IP, and that a message sent from one Internet computerto another will get to the intended destination. 这就意味着，有了IP 协议的作用，任意一台连接到因特网上的计算机就可以与因特网上任何其它计算机进行通信联系；也意味着可以将信息从因特网上的一台计算机传送往另一台计算机上的信息，从而实现将信息送达指定地点之目的。

注释：短语thanks to the rules of IP 作原因状语；谓语动词 means后面带了两个宾语从句：一是that any computer which is connectedto the Internet can communicate with any other Internet computer, 其中which is connected to the Internet为定语从句，修饰该从句的主语any computer；另一个是that a message sent from one Internet computer to another will get to the intended destination，其中sent from one Internet computer to another 是过去分词短语作定语，修饰该从句的主语a message。

4）The Internet contains the electronic equivalents of conference rooms and cafes, libraries and bookstores, post offices and telephones, radio and television stations, newspaper and magazines, and a growing variety of services that have no counterparts in "the real world". 如今因特网拥有了各种各样等同于电子的业务，如电子会议室和咖啡屋、电子图书馆和书店、邮政局和电话局、无线电台和电视台、报社和杂志社的电子业务，以及“现实世界”中尚未出现的各种业务。

注释：名词短语the electronic equivalents和后面of结构属于同位关系。

即of后面所列举的那一连串的业务都是以电子的形式开展的。

通称为“电子等同业务”。

5) These services have created a truly global village where people communicate with each other not because they happen to live in the same place, but because they share the same interests. 这些服务已经形成了一个真正的地球村，人们在那里相互交流，但并非是因为碰巧住在一起，而是因为他们兴趣相投的缘故。

注释：主语These services 指上文中提到的因特网所能提供的那些服务；注意 where引导的定语从句中的连词短语not because… but because… 的意思是“不是因为…而是因为…”,是典型的原因状语。

& Part 2 Word Study1. interconnect v. 连接11. Internet Protocol suite互联网协议集2. sophisticated adj. 复杂的12. intended destination 指定的目的地3. collaboration n. 合作13. perspective n. 观点；角度4. retrieve v. 检索14. equivalent n. 等同物5. incredibly adv. 不可思议的15. counterpart n. 相对物；对口6. distinctive adj. 与众不同的16. humble adj. 低级的7. internetwork n. 网络互连17. archive n. 计算机档案库存储器8. specialized adj. 专门的18. diverse adj. 各种各样的9. graph n. 图形19. essence n 本质，实质10. the Internet Passport 入网证20. profound adj. 意义深远的Task 1: Listening trainingDictation of some key wordsDirections: You will hear some key words twice, most of which are taken from the Word Study. Then finish the Crossword Puzzle. (See you book p. )2. Dictation of some key expressionsDirections: You will hear some key expressions twice, most of which are taken from this text. Then you are asked to complete the missing words.@ Part3 Practice on Text1) possible future________________2) _________________complex3) __________software and hardware 4) ____________destination5) electronic_____________6) the _________of the Internetapplications incrediblydistinctive intendedequivalents essenceRead and ReplyDirections:Students are required to read aloud the whole text afterthe teacher. Then give short answers to the following questions:Task 2: Read, Write and TranslateAn internet is a computer network which allows computerswith distinctive software and hardware to communicate, or"internetwork". While the Internet is specific kind of internetwhich is defined as the network of networks that follow a setof rules known as the "Internet Protocol (IP) suite".It is used for an extraordinary range of purposes, such as,long distance collaborations, retrieving free software anddocuments, accessing library catalogs, logging in tosupercomputersWe can use the Internet to access various of kinds of resources and communicate with other people throughout the world.c) What can we use the Internet for?a) What is an internet and what is the Internet?b) What is the network of networks used for?( )1) The list of current Internet activities and services is large and the range ofpossible future applications is limited .( )2) Because it is in direct communication with satellites far above us, it could even be said that the Internet is alreadybigger than the Earth.( )3) Many kinds of computers can be connected to an internet, but each computer can not serve a specialized role,not allowing an internet to offer a wide variety of services toits users.( )4) You can dial from your phone to any other phone on the system no matter what kind of telephone you have; youdon ’t need to know the phone number of the person youwant to reach.( )5) We can get various kinds of resources and communicate with others so long as the computer isconnected with the Internet, no matter how cheap yourcomputer is. Read and JudgeFT FF TDirections:Read the following short passage. Complete it by filling in the missing words .A. informationB. allowingC. networksD. worldwideE. messageF. InternetG. exchangeH. addressI. computersJ. communicate The Internet is a 1)_______ network of computers and computer 2)_______ that can 3)_______ with each other using the Internet Protocol. Any computer on the 4)_______ has a unique IP 5)_______ that can be used by other computers to route 6)_______ to it. Hence, any computer on the Internet can send a 7)_______ to any other computer using its IP address. These messages carry with them the originating computer's IP address 8)_______ for two-way communication. In this way, the Internet can be seen as an 9)_______ of messages between 10)_______. DC JF HAEBG IDirections:Put the following sentences into English, using the words or phrases given.1)众所周知，因特网的功能和业务范围非常广泛，其将来的应用超出了我们的想象。