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 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

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

1. to know Cellular Mobile Telephone System Teaching 2. to understand the construction of cellular mobile telephone system Objectives

Word13 multimedia[. mAl i''midjn.多媒体 describe[dis k]v.描述,形容 mixture['m tfan.混合,混合物 consequent['kon wan]a.作为结果的,随之发生的

NEW WORDS AND PHRASES vISIonary[ vita n ari]n.幻想家,梦想家 contribute [kan tribju]v.捐献,贡献 kan]adv.重大的,效果显著的,具有特殊意义的

六、建筑装饰施工图实例 以四川建筑职业技术学院第四教学楼门厅、报 告厅装饰施工图为例 (一)按照图纸顺序识读 1、图纸目录

一、启动 1.使用“开始”菜单启动AutoCAD2000 ①执行“开始”→“程序”→“AutoCAD22000

一、平面的表示法 用几何元素表示平面

一、案例 二、概念和公式的引出 三、进一步练习