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一、常见命题角度1.通过种群密度调查或种群特征,分析种群数量的变化、意义及影响因素。2.通过实例分析,考查群落的结构、演替过程和种内、种间关系。3.通过分析生态系统的组成及生态系统的能量流动和物质循环的区别与联系,考查生态系统的结构和功能及运用这些知识解决与生态系统相关的现实问题。4.通过食物链及食物网,考查生态系统中生物个体数量的变化规律。5.通过实例说明生态系统稳定性及其生物圈稳态自我维持的表现。
First, the common point of proposition 1. Through the population density survey or population characteristics, analysis of population changes, significance and impact factors. Through the case analysis, the community structure, succession process and intraspecific and interspecific relationships were examined. 3. By analyzing the composition of ecosystems and the differences and links between the energy flows and the material cycles in ecosystems, we can examine the structure and function of ecosystems and use them to solve ecosystem-related realities. 4. Through the food chain and food web, examine the changes of the number of organisms in the ecosystem. 5. Illustrate the performance of ecosystem stability and its steady-state self-sustainment in the biosphere through examples.