计算机专业英语(第二版) 教学课件 作者 吴群 吴坚 Lesson Five.pptVIP

专业英语 Lesson Five ? Key point: the passive voice ? Difficult points: proper noun in the lesson ? Requirement: By the end of this lesson, you should be able to have a good command of he usage of the passive voice computer terms given in the lesson ? By the end of this lesson, you should be able to describe how internet works follow the formalities used in addressing English envelopes How the Internet Works Abstract: The article introduces how the e-mail travels on the internet, what a back bone provider is and how internet companies connect to each other. Key words: big carriers; online world; backbone provider; solution to safeguard competition on the internet New Words carrier n. 通信公司 online a. 在线的；联机的；网上的 Internet service provider (ISP) n 因特网服务提供商 ramp n. 斜坡；斜面；坡道 bank of modems n. 调制调解器库 backbone provider n. 主干网提供商 route v. 按规定路径发送 haul n. 传递或运输的路程、距离 destination n. 目的地 breach n. 突破口；缺口 privatized a. 私有化的 sanction n. 批准；认可 public peering points n. 公共对等汇接点，该点将几个主干网对等连接起来 communications gear n. 通信控制装置，用来控制 通信数据传输 NSFNET n. National Science Foundation Net的缩写 metropolitan Access Exchange n. 城域访问交换点 criterion(pl) criteria n. （评判的）标准；尺度；准则 by leaps and bounds 飞跃地；极其迅速地 discriminator a. 区别对待的；歧视的 freebie n. （美俚）免费品 arbitrary a. 专横的；专断的 cockamamie a. （美俚）荒谬的；可笑的；令人难以置信的 discriminate v. 区别；有差别地对待 advocate v. 拥护；提倡 police v. 管理；管制 peer n. v. 网络数语，指网络连接上 的一种对等接入装置，也 可用作动词，此处指可接 入因特网的单位 Sentence Explanations 1. Ear