I. Revision mins com Teacher uses the following exercise to help the students to revise the important expressions or phrases

1.to know the development of switching techniques Teaching 2.to understand the main ideas of the text Objectives 3.to master the useful sentence structures, words and expressions used in the relevant exercises

1. to know the operation and advances of WDM and optical network Teaching 2. to understand the main idea and organization of the text; Objectives 3.to master some important new words, phrases and their

1. to know the origin and development of Internet Teaching 2. to understand the main idea and organization of the text

1. to know the three basic processes of PCM: Sampling Quantizing Encoding Teaching 2. to understand that PCM is the heart of technology in communications in Objectives

1. to know current situation and the future in the telecommunication world Teaching 2. to understand the main idea and organization of the text

Lesson Number 14(Unit 14) Telecommunications Grade Teaching Mode Lecturing Content The Public Telecommunication Network Class hours 2 Periods 1. to know the concept, the four generic architectural components and the five classes of switching centers about the public telecommunication network

Text Analysis Summary Main idea and devices Blankfilling for developing Exercises ④4 Paragraph Writing All the exercises for section a Tips for Para. Writing

Business Ethics Background Information Listen and Talk Read and Explore Write and Produce

1. Have you or your friend ever been cheated by a manufacturer? Describe your experience to your partner. Reference: Yes. Last year I planned to buy a computer so I could surf the net. I want to find a cheap one that's attractive and eas sy to use. I found