I Teaching aims: 1. to learn the new words and expressions; 2. to improve reading skills 3. to analyze the structure of the text II.Teaching focus: 1.key words:

I Teaching aims: 1. to learn the new words and expressions; 2. to improve reading skills 3. to analyze the structure of the text II.Teaching focus: 1.key words:

I Teaching aims: 1. to learn the new words and expressions; 2. to improve reading skills 3. to analyze the structure of the text II.Teaching focus: 1.key words:

Unit Three I Teaching aims: 1. to learn the new words and expressions; 2. to improve reading skills 3. to analyze the structure of the text II.Teaching focus: 1.key words:

Unit Two Teaching aims: 1. to learn the new words and expressions; 2. to improve reading skills 3. to analyze the structure of the text II.Teaching focus: 1.key words:

1. to learn the new words and expressions; 2. to improve reading skills 3. to analyze the structure of the text II.Teaching focus: 1.key words:

Working on a vacuum manifold: See LLP chapter 9.2 for an excellent discussion on working with air-sensitive reagents, including how to use a two-way manifold. De-gassing solvents: The best way to remove water and oxygen from a solvent is to distill it over an appropriate drying agent (such as sodium). This can sometimes be a lengthy (and dangerous)task. Since we

Make the best choice: 1.She was able to cope----- the difficulties she met with. a. in b. with. of.to 2. Would you mind ---- the radio? a. not turn on b. not to turn on. not turning on d. not turned on 3.The lion is a ---- of courage. a. symbol b. sign c. mark d. animal

萃取、冲洗和干燥:还没到结束不能算结束。藉由分液漏斗示 。 范液相-液相萃取并学习如何用”反应检查步骤”检查你的反应。这 是一个你不会想错失的一个纯化技巧! Extracting, Washing and Drying: It ain't over 'til it's over. Learn how to \work up\ your reaction using a separatory funnel to perform a liquid-liquid extraction. This is one purification technique you don't want to miss!

Introduction This lesson will address questions related to different levels of government: How should various responsibilities be allocated to different levels of government? Is decentralized government decision making desirable? Are locally raised taxes a good way to pay for services provided locally?