四川邮电职业技术学院教案专用纸 I. while-reading activities i New words and phrases 3 mins Students read the new words and phrases aloud one by one after teacher. 3 minutes ii. Text organizat 1. Ss read the text and point out the main idea of the text 15 mins The main idea: The text mainly discusses the definition and operation principle of SDH 2. Ss make an analysis of the organization of the text The text may be divided into three major sections Section 1(Linesl-18): the definition and development of SDh Section 2(Lines19-39): the operation and application of SDH; Section 3(Lines40-79): the network " building blocks"and how they are iii Key language points 1. SDH is an International Standard for high-speed synchronous optical telecommunication networkS---a Synchronous Digital Hierarchy 这是一句简单句。介词短语“ for high- d synchronous optical4mis elecommunication network”做后置定语修饰先行词 standard;注意标点符号“-” 的使用。破折号“--”在此处起解释作用,译成“即”。翻译时注意形容词 的语序 Chinese version:SDH,即同步数字系列,是为高速同步光纤通信指 定的一个国际标准。 2. The objective was to produce a worldwide standard for synchronous transmission systems which provides network operators with a flexible and economic network was to produce打算,着手做 flexible and economic灵活经济的 which provides network operators with a flexible and economic network ria 从句,修饰 standard, standard为第三人称单数,因此定语从句谓语动词使用 三单现形式 provides Chinese version:其目的在当时是要制定一个同步传输系统的世界性标准 而该标准将向网络运营者提供一个灵活的、经济的网络 Page 3 of 8 Teaching Plan of Telecommunications English Unit 6四川邮电职业技术学院教案专用纸 Page 3 of 8 Teaching Plan of Telecommunications English Unit 6 III. While-reading Activities i. New words and phrases Students read the new words and phrases aloud one by one after teacher.( 3 minutes) ii. Text organization 1. Ss read the text and point out the main idea of the text. The main idea: The text mainly discusses the definition and operation principle of SDH. 2. Ss make an analysis of the organization of the text . The text may be divided into three major sections. Section 1 (Lines1-18): the definition and development of SDH Section 2 (Lines19-39): the operation and application of SDH; Section 3 (Lines40-79): the network "building blocks" and how they are configured. iii. Key language points 1. SDH is an International Standard for high-speed synchronous optical telecommunication networks---a Synchronous Digital Hierarchy. 这是一句 简单 句 。 介词 短 语 “for high-speed synchronous optical telecommunication network”做后置定语修饰先行词standard；注意标点符号“---” 的使用。破折号“---”在此处起解释作用，译成“即….”。翻译时注意形容词 的语序 Chinese version：SDH，即同步数字系列，是为高速同步光纤通信指 定的一个国际标准。 2．The objective was to produce a worldwide standard for synchronous transmission systems which provides network operators with a flexible and economic network. was to produce 打算，着手做 flexible and economic 灵活经济的 which provides network operators with a flexible and economic network.定语 从句，修饰 standard，standard 为第三人称单数，因此定语从句谓语动词使用 三单现形式 provides。 Chinese version：其目的在当时是要制定一个同步传输系统的世界性标准， 而该标准将向网络运营者提供一个灵活的、经济的网络。 3 mins 15 mins 44 mins