四川邮电职业技术学院教案专用纸 Possible answers: Industrialized Age, Post-industrialized Age, Information Age, Digital Age, etc 2) Why do you and some other people call our age Digital Age? Possible answers: Digital machines including digital TV, pone camera, etc, are more and more widely used in our life and more and more people lead a digital life 2. Teacher leads into the text by saying: It is the fact that digital machines are changing our world and more and more people rely on them to make decisions However, A means is required to connect those machines together in order to increase the reach of the humans. Data communication we are about to study is the very answer. It serves as the means to transmit digital data or digital signals corresponding to analogue signals between various kinds of digital machines Now, let's go through the text to know how data signals are transmitted II. While-reading activities i New words and phrases mIns Students read the new words and phrases aloud one by one after teacher. (3 ii. Text organization 15 mins Ss read the text and point out the main idea of the text The main idea: The text mainly discusses the structure of full-duplex data tran ystem and its operation 2. Ss make an analysis of the organization of the text The text may be divided into four major sections Sectionl(Lines1-7): transmission media of data signals, Section2(Lines8-35) the structure of full-duplex data transmission system and its Section3(Lines36-55) the coding of data signals Section3 (Lines56-62): digital representation of basic information signals iii. Key language points prep: through the medium of, by means of(通过,经由通过…的媒介) eg: Data signals are transmitted over various types of telephone circuits, travel on wire, through underground cables, over microwave facilities, and via Page 3 of 7 Teaching Plan of Telecommunications English Ur四川邮电职业技术学院教案专用纸 Page 3 of 7 Teaching Plan of Telecommunications English Unit 2 Possible answers: Industrialized Age, Post-industrialized Age, Information Age, Digital Age, etc. 2) Why do you and some other people call our age Digital Age? Possible answers: Digital machines including digital TV, pone, camera ,etc, are more and more widely used in our life and more and more people lead a digital life. 2. Teacher leads into the text by saying: It is the fact that digital machines are changing our world and more and more people rely on them to make decisions. However, A means is required to connect those machines together in order to increase the reach of the humans. Data communication we are about to study is the very answer. It serves as the means to transmit digital data or digital signals corresponding to analogue signals between various kinds of digital machines. Now, let’s go through the text to know how data signals are transmitted. 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 structure of full-duplex data transmission system and its operation. 2. Ss make an analysis of the organization of the text . The text may be divided into four major sections. Section1 (Lines1-7): transmission media of data signals; Section2 (Lines8-35): the structure of full-duplex data transmission system and its operation; Section3(Lines36-55): the coding of data signals: Section3(Lines56-62): digital representation of basic information signals. iii. Key language points 1. over, in, on, and via prep: through the medium of, by means of (通过，经由,通过…的媒介) eg: Data signals are transmitted over various types of telephone circuits, travel on wire, through underground cables, over microwave facilities, and via 3 mins 15 mins 42 mins