Unit 13 We’re trying to save the earth（第1课时）
本学期第 课时 本单元第 1 课时 上课日期：_________
教学目标：
一、 目标
(一)、能掌握以下单词和短语：
To learn the following words and expressions.
bottom, coal, p ublic, ugly, cost, advantage, method, cruel, harmful, afford.
二、 教学重点
1. How to use the following words and ex pressions: cost, advantage, harmful, afford, used to, play a part in…
2. to understand the passage on Page 99.
三、 教学难点
1. How to use the following words and expressions: cost, advantage, harmful, afford, used to, play a part in…
2. to understand the passage on Page 99.
