《Eanh Science》(《地球科学》)是美国高中地理教科书,共分为地球的结构、矿物和它们的性质、岩石和岩石的起源、岩石的记录、地貌的变化、板块构造学说、风化和土壤、侵蚀、陆地水、海洋、空气、天气、气候、地球太阳月球的运动、人类对环境的影响、宇宙探索、太阳系、太阳和其他恒星等18章内容。《地球科学》的课堂作业系统分为两大部分——文后作业题和文中作业思考题。一、《地球科学》的作业系统 Eanh Science is the American high school geography textbook, which is divided into the Earth’s structure, minerals and their properties, the origin of rocks and rocks, rock records, changes in landscape, plate tectonics, weathering and soil , Erosion, Terrestrial Waters, Oceans, Air, Weather, Climate, Movement of Earth’s Solar Lunar, Human Impact on the Environment, Space Exploration, Solar System, Sun and Other Stars. The “Earth Science” classworking system is divided into two major parts - post-assignment assignment and assignment assignment. First, “Earth Science” operating system