群落的空间结构说课.pptx

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1、说教材说教材说教法说教法说教学说教学过程过程M1M2四四.群落的空间结构群落的空间结构说教法说教法说学法说学法M3M4第1页/共40页1一、一、说教材说教材1、教材的地位和作用、教材的地位和作用l 群落的空间结构群落的空间结构是选自人教版高中生物是选自人教版高中生物新课标必修新课标必修3 3第四章第三节的内容，是学习第四章第三节的内容，是学习群群落的演替落的演替和和生态系统的结构生态系统的结构的基础，因的基础，因此是本章的重点内容。此是本章的重点内容。1、教材的地位和作用、教材的地位和作用1 1、教材的地位和作用、教材的地位和作用第2页/共40页一、说教材一、说教材Text in hereTe

2、xt in here群落的种群落的种间关系间关系群落的结构特征群落的结构特征群落的物群落的物种组成种组成群落的空群落的空 间结构间结构1、教材的地位和作用、教材的地位和作用第3页/共40页三维目标三维目标能力能力目标目标一、说教材一、说教材2.教学目标教学目标知识知识目标目标概述群落的垂直结构概述群落的垂直结构情感情感目标目标培养学生观察和分析图像资料从而培养学生观察和分析图像资料从而解决生物学问题的能力解决生物学问题的能力形成知识与生活实际应用相结合的形成知识与生活实际应用相结合的意识意识第4页/共40页重点重点重点重点难点难点难点难点3.教学重点难点教学重点难点一、说教材一、说教材概述群落

3、概述群落的垂直结的垂直结构构分析垂直结分析垂直结构对动物分构对动物分布的影响布的影响第5页/共40页二、说教法二、说教法直观教学法直观教学法抛锚式教学法抛锚式教学法多媒体教学法多媒体教学法第6页/共40页三、说学法三、说学法运用处运用处理信息理信息分析分析能力能力思维思维能力能力第7页/共40页四四.说教学过程说教学过程Text in here板书设计板书设计 复习导入复习导入课堂小结课堂小结1 1讲授新课讲授新课2 24 43 3布置作业布置作业5 5板书设计板书设计第8页/共40页模拟课堂模拟课堂第9页/共40页第10页/共40页四四.群落的空间结构群落的空间结构（一）群落的空间结构（一）

4、群落的空间结构垂直结构垂直结构1.1.概念：概念：2.2.引起植物分层分布的主引起植物分层分布的主要原因是：要原因是：光照强度光照强度是指群落在空间上是指群落在空间上的垂直分层现象。的垂直分层现象。第11页/共40页（一）群落的空间结构（一）群落的空间结构垂直结构垂直结构在高山植物群落中，不同海拔地带的植物呈在高山植物群落中，不同海拔地带的植物呈垂直分布主要是受垂直分布主要是受温度温度制约的。制约的。所有的植物群落的分层都是主要由光照强度所所有的植物群落的分层都是主要由光照强度所造成的吗？请举例说明造成的吗？请举例说明。第12页/共40页（一）群落的空间结构（一）群落的空间结构垂直结构垂直结构

5、吃高大乔木的种子吃高大乔木的种子吃地面上的苔鲜和昆虫。吃地面上的苔鲜和昆虫。筑巢，以森林中层的昆虫筑巢，以森林中层的昆虫为食为食第13页/共40页（一）群落的空间结构（一）群落的空间结构垂直结构垂直结构（3 3）引起动物分层分布的主要原因：）引起动物分层分布的主要原因：食物、栖息场所食物、栖息场所（4 4）垂直结构的生物意义：）垂直结构的生物意义：使生物群落在单位面积上能容纳更多的生使生物群落在单位面积上能容纳更多的生物种类和数量，提高了群落利用环境资源物种类和数量，提高了群落利用环境资源（如阳光、空间、营养物质等）的能力。（如阳光、空间、营养物质等）的能力。第14页/共40页小麦玉米套作小麦

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