1. grasp the main idea( tolerance for solitude and energy made it possible for the writer s family to enjoy their pleasant but sometimes harsh country life.) 2. appreciate the various techniques employed by the writer comparison and contrast, topic sentences followed by detail sentences

交流仪器的使用(二) 一、实验目的 1.熟练掌握示波器、信号源和交流毫伏表的使用方法; 2学习相位差的测试方法。 二、实验设备 交流毫伏表、函数信号发生器 双踪示波器、模拟电路实验箱

Pm Going to Buy the Brooklyn Bridge Teaching Objectives grasp the main idea(the belief in superwomen encourages average women to achieve their goals)and the structure of the text 2) appreciate how the author achieves coherence for her essay 3master the key language points and grammatical structures in the text

Teaching Objectives 1)understand the main idea(despite the many negative effects of virtual life the author prefers it to real life) and the structure of the text(contrast between virtual life and real life); -2)learn some rules of interpreting new vocabulary

1. understand the main idea (despite his wealth, Sam Walton remains down-home and devoted to his team) and the structure of the text; 2. appreciate the use of indirect description in portraying person: 3. grasp the key language points and grammatical structures in the text

1概述 一、IO系统组成:包括I/O设备,设备控制器及与IO操作有关的软硬件。 二、I/O系统的主要功能:对指定外设进行 I/O操作,同时完成许多其他的控制。包括:外设编址,数据通路的建立,向主机提供外设的状态信息等

8.1 间接交流变流电路 8.1.1 间接交流变流电路原理 8.1.2 交直交变频器 8.1.3 恒压恒频(CVCF)电源 8.2 间接直流变流电路 8.2.1 正激电路 8.2.2 反激电路 8.2.3 半桥电路 8.2.4 全桥电路 8.2.5 推挽电路 8.2.6 全波整流和全桥整流 8.2.7 开关电源

一、化学键 1离子键(本质、特征、强弱、离子半径) 2共价键(本质、特征、强弱、共价半径) 3*分子构型(价电子对互斥理论) 4杂化轨道理论 5分子轨道理论

四、多电子原子结构与元素周期律 1多电子原子轨道的能级次序 2屏蔽效应和钻穿效应 3核外电子排布与元素周期律 五、元素某些基本性质的周期性变化规律 1原子半径核离子半径 2电离能核亲合能 3电负性

7.1氧化还原反应的基本概念 7.2电化学电池 7.3电极电势 7.4电极电势的应用