Teaching Plan Lecturer Zhao Lichun Course English for Telecommunications Lesson Number 13(Unit 13)  Time  Grade  Teaching Mode Lecturing  Content Multimedia Class Hours 2 Periods  Teaching Objectives to know the concept, development and application of multimedia; 2. to understand the main idea and organization of the text; 3.to master some important new words, phrases and their usages, especially the theme-related telecom terms and expressions in the text.  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. the usages of past participle phrases; 3. Affix: inter-，multi-; Difficult Points：xxx  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 main idea and organization of the text Exercises in class：Exercises 1-2 of Page 154 Assignments： 1. to collect the materials related to multimedia technology and application. 2. Exercises3-5 between Page 155 and Page 156. 3. to preview Unit 14.  Bibliography Zhang Daozhen,ed.Practical English Grammar (the 3rd Revision).Shanghai: the Commercial Press,1992 Shanghai Translation Publishing House,ed.New English-Chinese Dictionary. Shanghai:Shanghai Translation Publishing House,1988. Posts and Telecom Press,ed. English-Chinese Telecommunications Technology Dictionary.Beijing: Posts and Telecom Press,1997 Zhang Xiaohua and Shi Fangwen,ed.English for Telecommunications (the 4th Version).Beijing: Beijing University of Posts and Telecommunications Press,2004 Xu Xiulan.English for Computers and Telecommunications (the 3rd Revision) .Beijing: Beijing University of Posts and Telecommunications Press,2004   Teaching Content Contents Time Teaching Apparatuses  I. Revision Teacher can use the following questions to help the students to revise what they studied in the last unit. 1. What have we studied in the Unit 12? Possible answers: ATM 2. What is ATM? Possible answers: it is both a multiplexing and switching technique. 3. Tell us the advantage of ATM compared with the synchronous time division multiplexing techniques? Possible answers: ATM has the advantage of occupying the transmission link only in proportion to the exact requirement. II. Pre-reading Activities Ask the Ss the following two questions related to the theme of the text: What do you think of “ multimedia”? Possible answers: I think “multimedia” refers to the computer which has many functions such as dealing with words, dealing with sound and dealing with pictures or graphs and so on. We can use it to get much word information, to listen to music, to see films, to play games etc. 2) Can you tell us multimedia’ s applications in our lives ? Possible answers: I think that multimedia is not only a toy or a game technology. It is also moving into our lives in many ways. It is affecting our banking, shopping, education, travel, work patterns and so on. 2.Teacher leads into the text by saying: From the explanation you gave about multimedia, It can be said that multimedia plays very important roles in our lives. Based on your knowledge about multimedia, I’m sure, after reading the text, you can achieve a better understanding of the new text. Now, let’s have a careful study of the text. (1minute) 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 concept, technology development and applications of multimedia. 2. Ss make an analysis of the organization of the text . The text may be divided into three major sections. Section 1 (Lines1-13): the introduction of the concept of multimedia. Section 2 (Lines14-72): the biggest reason for the explosion of multimedia and the technology development of multimedia. Section 3 (Lines73-79): the applications of multimedia. iii. Key language points (1) 本篇课文涉及多媒体这一新技术领域，题目Multimedia可译成:“发展中的多媒体”. (2) with a consequent confusion in people's minds as to what it is. with引出的介词短语表示一种伴随情况.as to 至于，关于. (3) It is a confusion situation that could lead to a missed opportunity for industry to develop a new marketplace. that 引导定语从句, 修饰 a confusion situation; lead to 意思是 导致,其中的 to 是介词。 （4）The term multimedia literally means many forms of communication and in a sense we have always been immersed in a multimedia environment because we are beings that respond to sound, light, touch, and ideas. 句中`in a sense 意思是在某种意义上，have been immersed in 是现在完成时，意思是一直置身于；because 引导的是原因状语从句, 而that 引导的是定语从句,修饰 beings; respond to 意思是对… 作出反应或响应. (5). we now have the technology that can begin to move towards an ability, already held by the human being, in that by using computer technology, such as CD-ROM, not only can we bring together audio and visual images but also be interactive with other computer users. 这是一个长句. that引出定语从句修饰technology. in that 既然，因为.not only…but also… 不但…而且.后面的谓语用倒装. (6). to bring multimedia facilities within the reach of the majority of homes for about US $ 1,600 within the reach 在力所能及的范围内. (7) this system might consist of a 486 processor with 4 M bytes of RAM and 340 M bytes of hard disc storage, consist of意思是由什么组成,相当于be composed of (8) The first element associated with multimedia is perhaps the CD-ROM, now considered a mature technology. associated with multimedia 是过去分词短语作后置定语,considered?? 引出的过去分词短语，也可以看作是在前面省略了which is 的定语从句. (9). The standards of multimedia can be found in what is known as the ITU White Book, which brings together various standards for CD-ROM and video compression and it is essential that these two areas of standards are taken together. what 引出的从句作in的宾语. be known as? 被称作，被认为.it是形式主语，真正的主语是后面that引出的从句. (10) Without compression the amount of storage that would have to be provided by the CD-ROM would be immense, 句中that 引导定语从句, 修饰the amount of storage , to be provided 是不定式的被动结构,意思是被…提供. (11). The two levels are MPEG-1, which sets the provision of consumer quality of video and audio and MPEG-2, which sets the higher standards for professional, broadcast images and also looks to define high definition television. 此句较长，有两个which引导的定语从句.主干为two levels are MPEG:1 … and MPEG-2 ….这类定语常采用分译法翻译 (12). MPEG-2 looks at more than pictures, it looks at the associated sound, storage methods, bit rates needed, coding algorithms, etc. 句中 looks at意为着眼于, needed是过去分词做后置定语, 修饰bit rates (13). the provision of video is crucial and that video information must come to user in real time 句中come to 意思是到达, in real time表示在实时 (14). This means that any system must conform to the CCITT MPEG-2 standard. that 引导宾语从句, 作means 的宾语,conform to? 符合，遵照. (15). The technology to do this has moved on tremendously in the last few years due to the need to reduce the cost of transmitting data over the network. to do this是不定式短语作后置定语,修饰The technology due to引起的短语在句中作原因状语. to reduce the cost of… 也是 不定式短语作后置定语,修饰 the need. (16). This real time processing requires a vast amount of data storage and this is a function of the amount of information contained in a color picture 由and连接两个并列句.function原意为“功能，函数”，此处采用意译“为…决定”. (17). A typical VOD architecture takes trunk and access networks into account. take into account? 考虑，重视. (18). The video server will store a large number of programs that can be instantly accessed by a large number of individual subscribers, it is stored in a compressed form to save space. that引导定语从句, can be accessed是被动结构,意思是被访问, in a compressed form to save space是介词短语作状语,意思是以压缩的形式, to save space表目的. (19). it is estimated that in the period from 1991 to 1998 the volume of multimedia, not only for personal but also business use, will increase from zero to $1.9 billion for the software element alone. it is estimated. it 在翻译时常常省译.可译成“据估计”. not only … but also?可看作插入语. IV. Post-reading Activities (eg: 1. Review the important expressions , phrases, sentences and translation skills learnt in the study of the text. 2. Guide students through some exercises in class. V.Assignments Preview Unit 14. Do Exercises3-5 between Page 155 and Page 158. 3 mins 2 mins 60 mins 2mins 4 mins 1 mins computer， projector， loud speaker， audio-visual language teaching system， blackboard， recorder， DVD， radio， hanging chart， model.