1、高效课堂教学设计：（授课日期： 年 月 日 星期 班级 ）授课题目Book3, Unit4 Astronomy: The science of Stars拟 课时第 课时明确目标1、知识与技能：Enable the students to improve their writing skills.2、过程与方法：Analyse the exercises and check the answers.3、情感态度与价值观：Develop the studentsattitude to the science of stars.重点难点重点：Help the students to make fu
2、ll use of the skills.难点：Help the students to make full use of the skills.课型讲授 习题 复习 讨论 其它教 学 内 容 设 计师生活动设计Step I. Words and expressions1. To begin with, Id like to.首先，我想2. in all directionsin every direction 从四面八方3. cool down 冷却下来4. be fundamental to the development of life 对生命的发展起关键作用5. allow sb.to
3、 do sth.允许某人做某事6. allow doing sth.允许做7. produce a chain reaction 产生一系列反应8. sb. be filled with excitement 某人心中充满了激动9. lay eggs 下蛋10. give birth to a beautiful girl 生了一个漂亮的女孩11. give birth to communism 孕育了共产主义12. in ones turn 轮到某人(作状语)13. in turn 轮流/依次14. by turns 轮流/交替15. take turns to do sth.轮流做某事16
4、. Its ones turn to do sth.轮到某人做某事Step II. Sentence patterns1. What it was to become was uncertain until between 4.5 to 3.8 billion years ago when the dust settled into a solid globe.2. What is even more important is that3. So whether life will continue on the earth will depend on whetherStep III. PracticeStep IV. HomeworkTry to memorize the expressions and make full use of them.因材施教：教学后记：
