一、利用“引言”课,激发学习兴趣初中生物课是学生学习生物学科的启蒙课,“引言”课则是这门启蒙课的开篇。“引言”课的成败将直接影响学生学习生物学的动机、兴趣、意志和情感。本节课教学的内容是:什么是生物?为什么要学习生物知识,怎样学习好生物学。首先,采用观察和一些小演示实验引入课题,阐明什么是生物。在这里我给学生安排了两个小实验,取来一些植物,让学生观察它们为什么是绿色的?取来两种不同的 First, the use of “Introduction ” lesson, to stimulate interest in learning Junior high school biology class is the students enlightenment class to learn biology, “Introduction ” class is the beginning of this enlightenment class. “Introduction ” The success or failure of class will directly affect students’ motivation, interest, will and emotion in learning biology. The content of this lesson is: What is a biological? Why should learn biological knowledge, how to learn biology. First, introduce observations and experiments in small demonstrations to elucidate what is living creature. Here I arrange two small experiments for the students, take some plants and let the students observe why they are green. Two different