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一、教学背景分析《我们的水资源》是九年级化学第四章第一节内容,教材主要介绍了水的重要性、水资源概况和水资源保护三部分内容。水资源概况,一方面从储量上说明水的丰富,另一方面从可直接利用的淡水量上说明水的短缺,教材主要通过一些数据和图表来说明水资源情况,如利用几组对比数字突出我国大部分城市用水紧张的现状,意在强化学生的爱水、节水意识。水如同
First, the teaching background analysis “Our water” is the ninth chapter fourth chapter first section, the textbook mainly introduces the importance of water, water resources and water resources protection of three parts. The water resources profile, on the one hand, shows the abundance of water on the one hand, and on the other hand the amount of fresh water that can be used directly, the textbook mainly illustrates the water resources through some data and charts, The current situation of water shortage in most cities in China is intended to strengthen students’ awareness of love and water conservation. Like water