unit 10.ppt

1、计算机英语,人民邮电出版社,21世纪高等学校计算机规划教材,司爱侠 张强华 编著,Unit 10 Internet And Its Related Technologies,退出,New Words,New Words,New Words,New Words,New Words,Phrases,electronic mail电子邮件 postal service邮政服务,邮政业 carry on继续开展,坚持 Web site网站 virtual reality虚拟现实 look at看,考虑,着眼于 address line地址栏 home page主页 common gateway int

2、erface公共网关接口 domain name域名,Phrases,hypertext link超链接 private network专用网络 client/server model客户机/服务器模式 host computer主机 instead of代替,而不是. as soon as一.就,Abbreviations,IRC因特网在线聊天系统(Internet Relay Chat) HTTP超文本传输协议(Hypertext Transfer Protocol) FTP文件传输协议(File Transfer Protocol) URL统一资源定位符(Uniform Resource

3、 Locator) URI统一资源标识符(Uniform Resource Identifier) SMTP简单邮件传输协议(Simple Mail Transfer Protocol),Abbreviations,SLIP串行线路接口协议(Serial Line Internet Protocol) PPP点对点协议(Point-To-Point Protocol) UDP用户数据报协议(User Datagram Protocol) IGP内部网关协议(Interior Gateway Protocol) EGP外部网关协议(Exterior Gateway Protocol) BGP边界

4、网关协议(Border Gateway Protocol),Text,请老师朗读并讲解课文,Notes,1 The Internet, sometimes called simply the Net, is a worldwide system of computer networks a network of networks in which users at any one computer can, if they have permission, get information from any other computer and sometimes talk directly t

5、o users at other computers. 本句中，sometimes called simply the Net,是一个过去分词短语，对The Internet作补充说明。a network of networks in which users at any one computer can, if they have permission, get information from any other computer and sometimes talk directly to users at other computers是一个名词性短语，对a worldwide sys

6、tem of computer networks进行补充说明。在该短语中，in which users at any one computer can, if they have permission, get information from any other computer是一个定语从句，修饰和限定a network of networks。在该定语从句中，if they have permission是一个条件状语从句。,Notes,2 A side benefit of ARPANets design was that, because messages could be rout

7、ed or rerouted in more than one direction, the network could continue to function even if parts of it were destroyed in the event of a military attack or other disaster. 本句中，that, because messages could be routed or rerouted in more than one direction, the network could continue to function even if

8、parts of it were destroyed in the event of a military attack or other disaster.是一个表语从句。在该从句中，because messages could be routed or rerouted in more than one direction是一个原因状语从句，even if parts of it were destroyed in the event of a military attack or other disaster是一个定语从句，它们都修饰谓语could continue。,Notes,3 T

9、he URL contains the name of the protocol to be used to access the file resource, a domain name that identifies a specific computer on the Internet, and a pathname, a hierarchical description that specifies the location of a file in that computer. 本句中，to be used to access the file resource是一个动词不定式短语，

10、作定语，修饰和限定the name of the protocol，that identifies a specific computer on the Internet是一个定语从句，修饰和限定a domain name，a hierarchical description that specifies the location of a file in that compute是一个名词性短语，对a pathname进行补充说明。,Notes,4 When you are set up with direct access to the Internet, your computer is

11、 provided with a copy of the TCP/IP program just as every other computer that you may send messages to or get information from also has a copy of TCP/IP. 本句中，When you are set up with direct access to the Internet是一个时间状语从句，修饰谓语is provided，that you may send messages to or get information from also has

12、 a copy of TCP/IP是一个定语从句，修饰和限定every other computer。,Notes,5 The higher layer, Transmission Control Protocol, manages the assembling of a message or file into smaller packets that are transmitted over the Internet and received by a TCP layer that reassembles the packets into the original message. 本句中

13、，Transmission Control Protocol对The higher layer进行补充说明。that are transmitted over the Internet and received by a TCP layer that reassembles the packets into the original message是由and连接的两个并列的定语从句，修饰和限定smaller packets。在第二个定语从句中，that reassembles the packets into the original message是一个定语从句，修饰和限定a TCP lay

14、er。,Key to Exercises,Key to Exercises,Key to Exercises,Key to Exercises,计算机英语教程，北京，人民邮电出版社：国家级十五规划教材 电脑英语掌中宝，南京，东南大学出版社：获“华东地区大学出版社教材专著二等奖” 计算机专业英语教程，北京，高等教育出版社 电子商务专业英语教程，北京，高等教育出版社 计算机专业英语教程，北京，机械工业出版社 电脑英语词汇通，北京，人民邮电出版社 计算机实用英语，西安，世界图书出版公司 计算机专业英语教程，北京，清华大学出版社 电子商务专业英语教程，北京，清华大学出版社 信息管理专业英语教程，北京，清华大学出版社 电气工程专业英语教程，北京，清华大学