一、教材分析“食物链”一节是苏科版初中生物学第二单元第四章第一节的教学内容,该内容属于初中生物学课程标准十大主题之三——生物与环境。学生掌握食物链的知识有助于帮助学生理解“生产者通过光合作用把太阳能(光能转化为化学能),然后通过食物链(网) First, the textbook analysis ”food chain “ section is the Suke version of junior high school biology second unit fourth chapter first section of the teaching content, the content belongs to the junior high school biology curriculum standard ten theme three - biology and surroundings. Students have knowledge of the food chain to help students understand that ”producers convert solar energy (light energy to chemical energy) through photosynthesis and then through the food chain (web)