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高中生物学中“生态系统”一节,是“生物与环境”一章的重要内容,鉴于生态学在当代世界的资源问题,人口问题、环境问题等方面的理论和实践意义,让中学生懂得一点生态学的基本知识是十分重要的。通过全章的教学,应该使学生掌握生态系统的结构、能量流动、物质循环及生态平衡等多方面的基础理论知识。要达到上述目的,在整个教学过程中,就不能仅停留在一些名词概念的阐述上,而应该联系当地生态系统的实际,进行调查研究。我县地处长江三角洲的黄海之滨,农、林、牧、副、渔全面发展,有鱼米之乡之称。当地群
The “Ecosystem” section of high school biology is an important part of the chapter “Biology and Environment.” In view of the theoretical and practical significance of ecology in the resources, population and environmental issues in the contemporary world, it enables middle school students to understand The basic knowledge of ecology is very important. Through the teaching of the whole chapter, students should be provided with basic theoretical knowledge on the structure, energy flow, material circulation and ecological balance of ecosystems. In order to achieve the above-mentioned purpose, we should not stop at the explanation of some noun concepts throughout the teaching process. Instead, we should contact with the reality of the local ecosystem and carry out investigation and study. My county is located in the Yellow Sea coast of the Yangtze River Delta, agriculture, forestry, animal husbandry, vice all, fishing all-round development, there is said Yumizhixiang. Local group