《2022年中国的水资源教案2 .pdf》由会员分享，可在线阅读，更多相关《2022年中国的水资源教案2 .pdf（7页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、学习好资料欢迎下载三节 中国的水资源新侨中学赖桂明一、教学目标（一）、知识与技能1、掌握我国水资源的地区分布规律。2、了解我国水资源时间分配的特点及其形成原因。3、解决水资源不足和分布不均的主要途径。4、初步学会分析我国水能资源的分布同地形、气候的关系。（二）、过程与方法导学生课前做好资料查找，结合生活实际，了解我国水资源的现状及当地水资源的现状特征，组织学生讨论，采用表格对比法等形式进行课堂教学。（三）、情感态度与价值观过学习，培养学生惜水、节水的美德，增强保护水资源的责任感。二、教学重点、难点重点1、我国水资源的工区分布特点。2、解决水资源分布不均的对策。难点：学习好资料欢迎下载通过了解我
2、国水资源不足的现状及对社会经济发展的影响，培养学生正确的资源观，增强保护水资源的责任感。三、教学方法教法：1、读图分析法：解决教学重点和难点。2、问题探究法：激发学生学习兴趣和积极思维。3、合作学习法：培养信息搜集整理能力、合作学习能力。学法：1、尽量从感性入手，用问题引导，把感性和理性相结合，充分注意教学的启发性，努力使学生成为积极主动的思考性学习者，而非被动的听众。2、辨图识图是学生应掌握的基本地理技能，也是能引发学生兴趣的兴奋点。探究活动，既考虑到了基础性，又考虑到了实践性和应用性，指导学生掌握识图、辨图、用图的方法。四、教学准备1、查找有关“南水北调”工程的相关材料。2、了解当地水资源
3、状况（如附近水库分布、水资源污染的情况、水费价格、家庭平均用水量等）。3、教师准备教学课件。五、教学课时1 课时六、教学过程文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P
4、8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7
5、P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX
6、7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 H
7、X7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9
8、HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9
9、 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H
10、9 HX7P8H3L4O4 ZL10B4N9R7H4学习好资料欢迎下载【板书】：第三节中国的水资源一、导入新课：出示“中国年降水分布”，提问：我们在学习中国的气候的时候，知道我国降水的地区差异大，主要的变化趋势是什么？（由东南沿海向西北内陆递减）二、讲授新课：【板书】：一、地区分布悬殊从表中我们可以得出我国水资源的地区分布有什么特点呢？（我国水资源在地区分布上具有显著的不均衡性，具体表现为“东多西少，南多北少”的特点。）【板书】：1、特点：“东多西少，南多北少”（活动一）：下面我们具体来了解一下我国各地形区中的水资源分布状况，请同学们根据教材第66 页“中国水资源的供需状况”及地图册第 11
11、页“中国地形图”来完成第67 页的活动题。（出示“中国地形图”时先指明题目当中的地形区在图上的分布后让学生完成）地域水资源供需现状分布带对应地区北方缺水带塔里木盆地、内蒙古高原西部少水带青藏高原北部、东北平原西部过渡带辽东半岛、华北平原南方多水带长江中下游平原、横断山区丰水带武夷山脉、海南岛文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H
12、3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8
13、H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P
14、8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7
15、P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX
16、7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 H
17、X7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9
18、HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4学习好资料欢迎下载（过渡）：既然知道了我国水资源空间分布不均，那同学们有没什么建议呢？（水多的地方往水少的地方补充）【板书】：2、解决对策：跨流域调水解决水资源空间分布不均的有效办法之一就是跨流域调水，即把丰水区的水跨流域调入缺水区。例如：引黄济青工程，将黄河水调进青岛市，以解决青岛供水不足的问题。还有比如“引黄入晋”，“引滦入津”等，这几项跨流域调水工程，只能在不同程度上缓解
19、某些城市的缺水问题，还不能从根本上解决北方地区的缺水问题（如黄河的径流量本身就很少）。为了最大程度缓解这种局面，有必要建设更大的工程，这就是南水北调。（活动二）：下面就请同学们阅读教材第69 页“南水北调”的材料后思考以下问题。、南水北调工程有几条路线？（三条，西线、中线、东线）、哪条线距离最近，解决的是什么地方的缺水问题？（西线，西北地区）、中线方案起点的水库是哪一座？（汉江上游的丹东口水库）、沿京杭大运河的是哪条线？（东线）（小结）：南水北调工程在世界水利史上是罕见的。工程建成后，将把长江、淮河、海河、黄河流域联结起来，构成我国水资源“四横三纵、南北调配、东西互济”的新格局，从根本上扭转中
20、国水资源分布严重不均的局面。（过渡）：我国水资源在空间上分布是“东多西少，南多北少”，在时文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R
21、7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9
22、R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N
23、9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4
24、N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B
25、4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10
26、B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL1
27、0B4N9R7H4学习好资料欢迎下载间上的分布特点是什么呢？【板书】：二、时间分配不均（投影）：教材第 68 页长江武汉段及黄河花园口段流量变化图。（提问）：两条河流的河段中径流量各集中在哪些月份？（南方的长江是 512 月，北方的黄河是69 月份，集中于夏秋季节）【板书】：1、特点：夏秋多，冬春少，年际变化大。（投影）：湘江枯水期与丰水期的反差！（过渡提问）：解决水资源时间上分配不均的措施是什么呢？（修建水库）我国有成千上万的水库，洪水期蓄水，枯水期放水，调控水量，提高防洪、抗旱能力、并扩大灌溉面积。简介黄河小浪底水利工程及长江三峡水利工程（图：“中国主要水电站”）【板书】：2、解决对策：兴
28、建水库（过渡）：从以上的学习中我们知道，总体上来说，南方的水资源总量要比北方多的多，特别是南方的湿润地区，但偏偏就是有些地处南湿润地区的城市也成为了缺水的城市，这是为什么？（提问）：这么多缺水的城市当中就有为数不少的南方城市，如我国的经济特区深圳。（投影）：水污染、浪费水资源现象。（小结）：随着人口的增长，城市化的推进，我国水资源的供需问题仍十分突出，世界上有许多物质都可以逐渐找到替代品，比如部分国家的汽车用酒精代替汽油作为燃料，陶瓷可以代替钢铁，但迄今为止，文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H
29、3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8
30、H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P
31、8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7
32、P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX
33、7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 H
34、X7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9
35、HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4学习好资料欢迎下载还没有一种物质可以取代水。因此，节约用水，科学用水，保护水资源，防止水污染，是缓解缺水问题的有效途径。【板书】：三、合理利用水资源1、节约用水，防止水污染（投影）：国家节水标志，看图标，你能
36、说说这个标志的含义吗？“国家节水标志”由水滴、人手和地球变形而成。绿色的圆形代表地球，象征节约用水是保护地球生态的重要措施。标志留白部分像一只手托起一滴水，手是拼音字母JS的变形，寓意节水，表示节水需要公众参与，鼓励人们从我做起，人人动手节约每一滴水；手又象一条蜿蜒的河流，象征滴水汇成江河。（提问）：你认为怎样可以节约用水？（学生回答，给可行的有创意的同学加分）（活动三）：请为节水设计一条宣传标语（例）九、板书设计第三节 中国的水资源一、地区分布悬殊1、特点：“东多西少，南多北少”2、解决对策：跨流域调水二、时间分配不均1、特点：夏秋多，冬春少，年际变化大。2、解决对策：兴建水库三、合理利用每
37、一滴水文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9
38、R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N
39、9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4
40、N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B
41、4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10
42、B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL1
43、0B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4学习好资料欢迎下载1、节约用水，防止水污染文档编码:CB7A9G1
44、0R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G
45、10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9
46、G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A
47、9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7
48、A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB
49、7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4文档编码:CB7A9G10R10H9 HX7P8H3L4O4 ZL10B4N9R7H4