一、研究科目北京版初中地理教材,初一年级。二、教学目的第一,通过有关数字信息让学生了解世界上淡水资源的数量和分布。第二,使学生了解我国水资源的状况,切实认识到淡水资源对人类的重要性。第三,使学生感受并了解水资源短缺带来的问题。第四,增强学生的危机感和节水意识,树 First, study subjects Beijing junior high school geography teaching materials, the first grade. Second, the purpose of teaching is to make students understand the quantity and distribution of freshwater resources in the world through relevant digital information. Second, to enable students to understand the status of China’s water resources and effectively recognize the importance of freshwater resources for humanity. Third, make students feel and understand the problems caused by water shortages. Fourth, enhance students’ sense of crisis and water-saving consciousness, and