《2022年人教版地理选修5《中国的气象灾害》word学案 .pdf》由会员分享，可在线阅读，更多相关《2022年人教版地理选修5《中国的气象灾害》word学案 .pdf（4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、名师精编优秀教案第四节 中国的气象灾害学案【教学目标】1了解旱灾、台风、寒潮等气象灾害的基本特征。2学会利用图文资料分析气象灾害成因及影响的基本方法。3形成关注气象灾害的意识【预习案】【一】阅读课本，了解旱灾、台风、寒潮等气象灾害的基本特征。一、寒潮灾害1、发生时间、高峰期：2、源地：3、侵入我国路径（结合图2.35 了解）：4、寒潮南下过程中的变化：5、对农业危害大的原因：6、南北方不同的表现及频次分布规律：二、旱灾1、特点：2、多发中心（读图2.30 定位）3、不同区域的特点（干旱区、半干旱区、东部季风区）4、不同分区旱灾的季节差异（读表2.4 分析）5、旱灾与涝灾的关系6、危害三、台风灾
2、害1、我国台风源地2、空间分布特点3、危害及灾情变化【二】结合本学案3-4 页“探究分析”材料，完成活动题目，小组内可初步讨论。【课堂案】一、寒潮灾害请同学们阅读课本P50，一、二段及图2.35：思考 1、寒潮是如何影响到长江中下游地区甚至两广地区的？思考 2、青藏高原、云贵高原很少受到寒潮的影响，试分析其原因？思考 3、结合第一章所学的内容，回答寒潮发生时的天气特征及对农业危害较大的季节？请同学们阅读课本P50 最后两段：思考 4、试分析寒潮频次东北地区最多的原因？思考 5、你认为寒潮对农牧及交通运输会带来哪些影响？名师精编优秀教案请同学们依据学案上给出的纲要，阅读课本了解“旱灾和台风的基本
3、特征”二、旱灾三、台风灾害问题 1、旱灾主要分布区是（）A.干旱区B.半干旱区C.东部季风区问题 2、比较各分区旱灾的季节差异分区旱灾易发季节东北区华北区长江区华南区西南区思考 1、为什么东部季风区时旱灾频发区？思考 2、读下图，分析沿海省区台风灾情最重的原因？（课本 P48 图 2.33 和图 2.34）【疑难解答】？华北地区气象灾害多发的原因？华北地区是我国气象灾害多发区，最常发生的气象灾害有干旱、干热风、寒潮、沙尘暴、冰雹、霜冻等，其中干旱沙尘暴和干旱 虫灾是主要的气象灾害。请同学们按照划分的小组，讨论你们的分析结果，并形成一份最优结论，一会选一位代表到讲台上展示。【课后拓展】对“华北地
4、区气象灾害”的防灾减灾你有哪些好的建议？请把你的想法写到作业本上。探究分析：“华北地区气象灾害多发的原因”华北地区是我国气象灾害多发区，最常发生的气象灾害有干旱、干热风、寒潮、沙尘暴、冰雹、霜冻等，其中干旱 沙尘暴和干旱 虫灾是主要的气象灾害。其气象灾害多发的的原因有哪些呢？材料 1 自然条件文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M1
5、0J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE
6、5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D
7、5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编
8、码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W
9、9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G
10、6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10
11、Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1名师精编优秀教案华北地区主要包括北京、天津、河北、山西、内蒙古等；大部分是温带季风气候区，水热条件不稳定，降水的季节分配不均且地表径流较少。冬季这里受来自高纬内陆偏北风的影响，盛行极地大陆气团，寒冷干燥。夏季盛行东南风，暖热多雨，雨热同季。年降水量一般在400 毫米 800毫米之间，约有三分之二集中于夏季。每年的春季少雨,常有干旱。频繁的旱涝灾害，冬春季节的风沙、土壤盐碱化、寒潮（冻害）以及黄土高原的水土流失严重制约了农业的发展。特别是春季，降水少、气温回升快，蒸发旺盛
12、，加上植被覆盖率低，土壤墒情差旱灾严重且多风沙。对种子的发芽和返青十分不利。水是华北地区，尤其是黄河中下游地区农业的命脉。材料 2 社会经济条件黄河中下游地区是中华文明的发祥地之一，历史悠久，人口稠密、城市密集、经济发达。华北地区是我国主要农业商品生产基地，主要农产品有小麦、玉米、棉花、花生、谷子、温带水果等。华北地区是我国重要的工业基地，机械、钢铁、能源、棉纺织等工业发达，京津塘地区是我国重要的综合性工业基地，各类产业发达，工程设施密集。因此工农业和生活用水需求量大，给华北地区的供水带来了严重的压力。为了满足生产、生活的需要，很多城市过量开采地下水，导致地面沉降、海水倒灌等问题，进而使得洁净
13、的淡水减少。另一方面，人们的节水意识不是很强，水资源浪费现象较重，加上水体污染，使可用的水资源更少。材料 3 旱灾严重，已成为我国最缺水的区域。（来自教材P51 整合）华北地区是我国范围最广、强度最大、灾情最重的旱灾中心，多年平均旱灾受灾 面 积 可 占 全 国 受 灾 面 总 面 积 的46.5%，旱 灾 成 灾 面 积 占 全 国 旱 灾 成 灾 总 面 积 的50.5%。严重的干旱，对农业和生态环境构成严重威胁。材料4 沙尘暴是春季对华北地区影响很大的气象灾害。（来自教材P52）沙尘暴是沙暴和尘暴两者兼有的总称，是指强风把地面大量沙尘卷入空中，使空气特别混浊，水平能见度地域1 千米的天气
14、现象。虽然华北地区的沙尘暴发生次数和严重程度不及西北，但造成的损失十分严重。华北地区沙尘暴多发的一个重要原因华北地区临近沙源地。（教材P53 页图2.39）材料5“华 北地区气象文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文
15、档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR
16、5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q
17、4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL
18、10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4
19、M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6
20、ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M
21、8D5R1名师精编优秀教案灾害多发的原因”示意图（来自教材P51）请根据以上材料（也可查阅其他资料）分析归纳华北地区气象灾害多发的原因？文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q
22、9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10
23、J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5
24、V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5
25、R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码
26、:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1文档编码:CR5W9M8Q4G6 HL10Q9Z4M10J6 ZE5V8M8D5R1