四川邮电职业技术学院：《通信英语》Unit15

四川邮电职业技术学院教案专用纸 Teaching Plan English for Lecturer Ji Hon Course Lesson Number 15(Unit 15) elecommunications Grade Teaching Mode Lecturing Content The Integrated Services Digital Network Class hours 2 Periods 1. to know The Integrated Services Digital Network Teachi 2. to understand the construction of The Integrated Services Digital Network Objectives 3. to master some important new words and passive voice Focal Focal Points: 1. Important new words, phrases and their usages, especially the theme-related Difficult telecom terms and expressions in the text; 2. Organization of the text; 3. Translation Points training Difficult Points: 1. Detailed analysis of difficult sentences in the text; 2. Prefix: mega-,trans- 3. Passive voice Teaching Ways of lecturing, multimedia demonstration and speech interacting are applied to achieve Methods the most understanding of the text intended Applied Discussion The advantages of ISDN Exercises:共5道题 Exercises 1. to finish Exercises 3-5 on between page 179 and 181 Assignments 2. to preview unit 16 1. Zhang Daozhen, ed Practical English Grammar(the 3 Revision). Shanghai: the Commercial press, 1992 2. Shanghai Translation Publishing House, ed New English-Chinese Dictionary. Shanghai: Shanghai Translation Publishing House, 1988. Bibliography 3. Posts and Telecom Press, ed. English-Chinese Telecommunications Technology Dictionary. Beijing: Posts and Telecom Press, 1997 4. Zhang Xiaohua and Shi Fangwen, ed English for Telecommunications (the 4 Version). Beijing: Beijing University of Posts and Telecommunications Page 1 of 9 Teaching Plan of English for Telecommunications Unit 15

四川邮电职业技术学院教案专用纸 Page 1 of 9 Teaching Plan of English for Telecommunications Unit 15 Teaching Plan Lecturer Ji Hong Course English for Telecommunications Lesson Number 15(Unit 15) Time Grade Teaching Mode Lecturing Content The Integrated Services Digital Network. Class Hours 2 Periods Teaching Objectives 1． to know The Integrated Services Digital Network. 2． to understand the construction of The Integrated Services Digital Network. 3． to master some important new words and passive voice. Focal & Difficult Points Focal Points：1. Important new words, phrases and their usages, especially the theme-related telecom terms and expressions in the text;. 2. Organization of the text; 3. Translation training. Difficult Points：1. Detailed analysis of difficult sentences in the text.;2. Prefix: mega-; trans- 3. Passive Voice. Teaching Methods Applied Ways of lecturing, multimedia demonstration and speech interacting are applied to achieve the most understanding of the text intended. Discussion, Exercises and Assignments Discussion：The advantages of ISDN. Exercises：共 5 道题 Assignments： 1. to finish Exercises 3-5 on between page 179 and 181. 2. to preview unit 16. Bibliography 1. Zhang Daozhen,ed.Practical English Grammar (the 3rd Revision).Shanghai: the Commercial Press,1992 2. Shanghai Translation Publishing House,ed.New English-Chinese Dictionary. Shanghai:Shanghai Translation Publishing House,1988. 3. Posts and Telecom Press,ed. English-Chinese Telecommunications Technology Dictionary.Beijing: Posts and Telecom Press,1997 4. Zhang Xiaohua and Shi Fangwen,ed.English for Telecommunications (the 4th Version).Beijing: Beijing University of Posts and Telecommunications

四川邮电职业技术学院教案专用纸 Press, 2004 5. Xu Xiulan. English for Computers and Telecommunications(tl Revision). Beijing: Beijing University of Posts and Telecommunications Press. 2004 Page 2 of 9 Teaching Plan of English for Telecommunications Unit 15

四川邮电职业技术学院教案专用纸 Page 2 of 9 Teaching Plan of English for Telecommunications Unit 15 Press,2004 5. Xu Xiulan.English for Computers and Telecommunications (the 3rd Revision) .Beijing: Beijing University of Posts and Telecommunications Press,2004

四川邮电职业技术学院教案专用纸 Teaching Content Teaching Contents Time Apparatuses I. Revision mins computer, 上节课主要学习了第14单元关于 The public telecommunications Network的知识。 projector, Teacher uses the following exercises to help the students to revise the important expressions or phrases learnt last time. Teacher: When I say a phrase or an expression in Chinese, you respond 3 mins speaker, by giving an English equivalent you learnt in unit 14. Teacher (Chinese Student (English) auallo-visu 公众信息网 public telecommunications network language 外部呼叫 external call 收费中心 电话用户 telephone subscriber blackboard, 音频电路 voice- frequency circuit recorder, 双绞线 twisted pair DVD, 数据流量 II. Pre-reading Activities Brief introduction about ISDN 1. What is ISDN? ging ISDN, which stands for Integrated Services Digital Network, is a system of digital phone connections which has been available for over a decade. This system allows voice and data to be transmitted simultaneously across the world using end-to-end digital connectivity 2. The features of ISDN ISDN allows multiple devices to share a single line. It is possible to combine many different digital data sources and have the information routed to the proper destination. Since the line is digital, it is easier to keep the noise and interference out while combining these signals. IsdN technically refers to a specific set of digital services provided through a single, standard interface Without IsdN, distinct interfaces are required instead 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 Page 3 of 9 Teaching Plan of English for Telecommunications Unit 15

四川邮电职业技术学院教案专用纸 Page 3 of 9 Teaching Plan of English for Telecommunications Unit 15 Teaching Content Contents Time Teaching Apparatuses I. Revision 上节课主要学习了第 14 单元关于 The Public Telecommunications Network 的知识。 Teacher uses the following exercises to help the students to revise the important expressions or phrases learnt last time. Teacher: When I say a phrase or an expression in Chinese, you respond by giving an English equivalent you learnt in unit 14. Teacher (Chinese) Student (English) 公众信息网 public telecommunications network 外部呼叫 external call 收费中心 toll center 电话用户 telephone subscriber 音频电路 voice- frequency circuit 路由 route 双绞线 twisted pair 数据流量 data traffic II. Pre-reading Activities Brief introduction about ISDN. 1.What is ISDN? ISDN, which stands for Integrated Services Digital Network, is a system of digital phone connections which has been available for over a decade. This system allows voice and data to be transmitted simultaneously across the world using end-to-end digital connectivity. 2. The features of ISDN. ISDN allows multiple devices to share a single line. It is possible to combine many different digital data sources and have the information routed to the proper destination. Since the line is digital, it is easier to keep the noise and interference out while combining these signals. ISDN technically refers to a specific set of digital services provided through a single, standard interface. Without ISDN, distinct interfaces are required instead 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 3 mins 3 mins 60 mins computer， projector， loud speaker， audio-visual language teaching system， blackboard， recorder， DVD， radio， hanging chart， model

四川邮电职业技术学院教案专用纸 1. Ss read the text and point out the main idea of the text. The main idea: The text mainly discusses the importance, characteristics and development of IsDN The text may be divided into three major sections Section 1 (Lines 1-7): It tells us that Isdn is the road map to the future for all forms of digital communications Section 2 (Lines 8-60): The characteristics and growth of ISDN Section 3(Lions 61-62): ISDN will be the blueprint to the electronic communications system of the future iii Key language points 1. The integrated services digital network(IsDn) is the road map to the future for all forms of digital communications Integrate:Vt. to combine things together使结合,使并入 Train and bus services have been well integrated Integrated: adj. an integrated systems or institutions combines many different groups, ideas or parts in a way that works well mIns 过去分词修饰名词时反映动作的结果。(如下 best kept trillion dollar secret) Digital: adj. using a system in which information is represented in the form of changing electrical signals Digital computer/ control(数控)/ recording(数字式录音 Translation:对各种形式的数字通信来说,综合业务数字网(ISDN)是 未来的发展方向 4 mins 2. Dictate:Vt. to control or influence; determine支配,命令 Funds dictate what we can do Can they dictate how the money will be spent? I mins 3. ISDN is, therefore, a mega-telecommunication issue and as such it is probably the worlds best kept trillion dollar secret. Mega: prefix, 1) a million times a particular unit of something. Megahertz(兆赫), megabyte, megawatt 2)great, very large Megaphone(扩音器), megastar( superstar) 4. Enormous: extreme ly large in size nt巨大的 The amount of data involved is enormous 5. This new prominence does not mean that the idea is new Prominence: the fact of being important and well- known t Gandhi first came to prominence in South africa in 1920 Page 4 of 9 Teaching Plan of English for Telec Unit 15

四川邮电职业技术学院教案专用纸 Page 4 of 9 Teaching Plan of English for Telecommunications Unit 15 1. Ss read the text and point out the main idea of the text. The main idea: The text mainly discusses the importance, characteristics and development of ISDN. 2. Ss make an analysis of the organization of the text . The text may be divided into three major sections. Section 1 (Lines 1-7): It tells us that ISDN is the road map to the future for all forms of digital communications. Section 2 (Lines 8-60): The characteristics and growth of ISDN. Section 3 (Lions 61-62): ISDN will be the blueprint to the electronic communications system of the future. iii. Key language points 1. The integrated services digital network(ISDN) is the road map to the future for all forms of digital communications. Integrate: Vt. to combine things together 使结合，使并入 Train and bus services have been well integrated. Integrated: adj. an integrated systems or institutions combines many different groups, ideas or parts in a way that works well. 过去分词修饰名词时反映动作的结果。(如下 best kept trillion dollar secret) Digital: adj. using a system in which information is represented in the form of changing electrical signals. Digital computer / control (数控) / recording (数字式录音) Translation: 对各种形式的数字通信来说，综合业务数字网（ISDN）是 未来的发展方向 2. Dictate: Vt. to control or influence ; determine 支配，命令 Funds dictate what we can do. Can they dictate how the money will be spent? 3. ISDN is, therefore, a mega-telecommunication issue and as such, it is probably the world’s best kept trillion dollar secret. Mega: prefix, 1) a million times a particular unit of something. Megahertz (兆赫), megabyte, megawatt 2)great, very large Megaphone(扩音器)， megastar (superstar) 4.Enormous: extremely large in size or in amount 巨大的 The amount of data involved is enormous. 5. This new prominence does not mean that the idea is new. Prominence: the fact of being important and well- known 显著 Gandhi first came to prominence in South Africa in 1920s. 2mins 4 mins 1 mins

四川邮电职业技术学院教案专用纸 Construction 主语: This new prominence 谓语: does not mean 宾语: the idea is new(句子充当宾语,是由that引导的宾语从句) Early studies suggested that digital services offered ificant 6. public switched telephone network 公共交换电话网 Switch: 1)n. device for completing or breaking an electric circuit Please press the on /off switch. a two-way switch, eg at the top and the bottom of a stair 双路开关(楼梯上下均可控制) shift or change A switch from gas to electric由使用煤气改为电气 Can you switch the Tv over? 3)v. to connect or disconnect electricity Switch on / off Switch on/off the gas power at the mains Switchboard n.电话交换台,总机 7. The first characteristic is achieved when a signal is digitally encoded to overcome degradation due to the transmission medium. due to: cause by sth/ sb, because of sb/ sth The team's success was largely due to her efforts transmission:n传播,传输 a break in transmission due to a technical fault Prefix: trans-, across, beyond Transmit v.传输, transit v.运载, transaction n.处理, Transfer v.转移, translate v.翻译 8. Early studies suggested that digital services offered significant advantages since a substantial quantity of interface equipment in the telephone exchange could be eliminated Substantia1: large enough in amount to be noticeable大量的 The document requires substantial changes. Construction 主语: early studies 谓语: FiH: that digital services offered significant advantages 状语:由 SInce引导的 a substantial quantity of interface equipment in the telephone exchange could be eliminated. Translati Page 5 of 9 Teaching Plan of English for Telecommunications Unit 15

四川邮电职业技术学院教案专用纸 Page 5 of 9 Teaching Plan of English for Telecommunications Unit 15 Construction: 主语：This new prominence 谓语：does not mean 宾语：the idea is new ( 句子充当宾语，是由 that 引导的宾语从句) Eg. Early studies suggested that digital services offered significant advantages. 6. public switched telephone network 公共交换电话网 Switch: 1) n. device for completing or breaking an electric circuit Please press the on / off switch. A two-way switch ,eg at the top and the bottom of a stair 双路开关（楼梯上下均可控制） 2) n/ v， shift or change A switch from gas to electric 由使用煤气改为电气 Can you switch the TV over? 3) v. to connect or disconnect electricity Switch on / off Switch on / off the gas / power at the mains Switchboard n. 电话交换台，总机 7.The first characteristic is achieved when a signal is digitally encoded to overcome degradation due to the transmission medium. due to: cause by sth/ sb, because of sb/ sth The team’s success was largely due to her efforts. transmission: n.传播，传输 A break in transmission due to a technical fault. Prefix: trans -, across, beyond Transmit v. 传输, transit v. 运载， transaction n. 处理， Transfer v. 转移， translate v. 翻译 8. Early studies suggested that digital services offered significant advantages since a substantial quantity of interface equipment in the telephone exchange could be eliminated. Substantial: large enough in amount to be noticeable 大量的 The document requires substantial changes. Construction: 主语：early studies 谓语：suggested 宾语：that digital services offered significant advantages 状语：由 since 引导的 a substantial quantity of interface equipment in the telephone exchange could be eliminated. Translation: