When I learned the course of biology in junior high school, the knowledge educated by teachers was all what I had heard in my childhood.
在初中开始学习生物时，老师课上讲到的很多知识都是我小时候就听过的。
Biology teachers in junior middle schools should renew knowledge concepts and improve course concepts, and also they should make efforts to achieve the aim by teaching practice.
初中生物教师应更新知识观念，转变课程理念，通过教学实践努力实现其目标。
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