●教材分析土壤作为陆地环境的重要组成部分,虽然它是多种自然和人为因素共同作用的产物,但它在陆地环境中的地位不可忽视。土壤以其固有的特性——具有肥力能够生长植物,使地理环境发生了根本的变化,没有土壤,就没有农业,土壤对人类文明有不可磨灭的贡献。教材在内容处理上将土壤分成四个部分:“土壤的概念与土壤在陆地环境中的作用”、“土壤的肥力特性”、“土壤的形成”、“土壤与人类活动的关系”。表面上这四个部分相对独立,实际每个部分均以土壤的物质成分为主线,贯穿整个内容,因此抓住了主 ● Textbook analysis Soil is an important part of the terrestrial environment. Although it is a product of multiple natural and human factors, its position in the terrestrial environment cannot be ignored. Soil has its inherent characteristics - it has the ability to grow plants with fertility, so that the geographical environment has undergone fundamental changes. Without soil, there is no agriculture, soil has an indelible contribution to human civilization. In the content of the textbook, the soil is divided into four parts: “the concept of soil and the role of soil in the terrestrial environment”, “the fertility characteristics of the soil”, “the formation of soil” and “the relationship between soil and human activities”. On the surface, these four parts are relatively independent. In reality, each part is based on the material composition of the soil and runs through the entire content, thus seizing the main