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初中生物学涉及植物学、动物学、人体生理卫生、遗传、进化、生态等多方面的内容，知识面广，知识点密集而繁杂。如何在大纲规定的150余课时以内让学生比较系统地获得生物学基础知识，形成基本的生物学观点，培养学生生物学的能力和兴趣？我们在‘大课堂观”的指导下，通过理论
Junior biology involves botany, zoology, human physiology, health, genetics, evolution, ecology and many other aspects. It has a wide range of knowledge and intensive and complex knowledge points. How do students get more systematic basic knowledge of biology within 150 hours of the syllabus, form a basic biological perspective, and develop students’ abilities and interests in biology? We have adopted theory under the guidance of the ‘major classroom view’