How Life Began On The Earth导学案

高一英语必修三第四单元导学案
 
unit 4 asrtonomy: the science of the stars
第一课时 how life began on the earth
learning aims:
master the key words and expressions of the text.
read and understand the text—how life began on the earth
课前预习(resivion)：
preview new words and expressions:
words:
1. violent adj.强暴的，猛烈的violence n.暴力，强暴；猛烈  violently adv. 强暴地；猛烈地
2. fundamental adj.基本(础)的n.[pl.]基本原则(法则)  fundamentally adv. 基本地；根本地
3. development n.生长，发展；新情况  develop vt.发展；产生vi.生长；发展
developed adj. 发达的developing adj. 发展的
4. lay vt.放下；摆设；产(蛋) lay-laid-laid-laying  lie vi. 躺，平放；位于lie-lay-lain-lying lie n.&vi. 谎话；说谎   lie-lied-lied-lying
5. prevent vt. 预防，防止  prevention n.预防；阻止；妨碍   preventable adj.可防止的，可预防的
expressions:
1. to begin with       &nbs 阅读全文