《高中地理自然界的水循环课件新人教必修》由会员分享，可在线阅读，更多相关《高中地理自然界的水循环课件新人教必修（32页珍藏版）》请在金锄头文库上搜索。
1、第一节 自然界的水循环第三章 地球上的水Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.学习目标定位一、课课程标标准运用示意图图,说说出水循环环的过过程和主要环节环节 ，说说明水循环环的重
2、要意义义。二、学习习目标标1通过阅读水圈的构成图，能够说明水体的类型。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.2能够通过比较、分析有关资料，说明陆地水体之间的相互联系。(难点)3学
3、会运用示意图，说出水循环的过程和主要环节，并说明水循环的地理意义。(重点)Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.基础梳理自学导引分布最广液态态水高纬纬、高山连续连续 但不规则规则
4、Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.2水体的类类型及特征水体特征关系海洋水 占全球水储储量的_%水源_陆陆地水 包括_、湖泊水、沼泽泽水、土壤水、地下水、冰川水、生物水等_数量
5、较较少96.53河流水大气水相互补给补给Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.思考1俗话说“井水不犯河水”，请运用“陆地水体的相互补给关系”分析这种说法是否科学？【提示】 陆陆地
6、各水体之间间存在水源相互补补给给的关系。井水是地下水的一种，它与河流水之间间具有相互补给补给 的关系，所以“井水不犯河水”的说说法是不科学的。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Lt
7、d.二、水循环环的过过程和意义义1概念：_在水圈、大气圈、岩石圈、生物圈四大圈层层中通过过各个环节连环节连续续运动动的过过程。自然界的水Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.2类
8、类型及主要环节环节循环类环类 型字母主要环节环节 _A蒸发发、_、 降水、_、 下渗、地下径流 海上内循环环_蒸发发、降水 _C_、植物蒸腾腾、 降水海陆间陆间 循环环水汽输输送 地表径流B陆陆地内循环环蒸发发Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.
9、Copyright 2004-2011 Aspose Pty Ltd.3.意义义(1)维维持了全球水的_。(2)通过过吸收、转转化和传输传输 地表_,缓缓解不同纬纬度_收支不平衡的矛盾。(3)海陆间联陆间联 系的主要纽带纽带 。(4)不断塑造_。动态动态 平衡太阳辐辐射能热热量地表形态态Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0
10、.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.思考2“黄河之水天上来”，可理解为黄河的主要补给水源是什么？“百川归大海，何日复西归”说的是哪种类型的水循环？【提示】 大气降水。海陆间陆间 循环环。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile
11、 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.课堂互动释疑解惑探究一 相互联联系的水体互动动探究1读教材图3.1“水圈的构成”,完成下列问题.(1)水圈构成一个连续圈层的基础是什么？(2)从形态上看，何种水体占世界水储量的大部分？比例是多少？(3)我们目前利用的水体包括哪些？Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created w
12、ith Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.提示： (1)水具有液、气、固三态，且可以相互转化。(2)海洋水；96.53%。(3)河流水、湖泊水和浅层地下水。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Sl
13、ides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.2读教材图3.2“陆地上的水体及其相互关系”,完成下列问题。(1)河流补给类型有哪些？最主要的是哪种补给？(2)有一种补给是单向的，请问是哪种？(3)河水、湖泊水怎样互相补给？Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Crea
14、ted with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.提示： (1)大气降水、冰川水、湖泊水、地下水等。大气降水是最主要补给。(2)冰川水补给河水。(3)当河水位高于湖泊水位，河水补给湖泊；当河水位低于湖泊水位，湖泊水补给河水。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Pro
15、file 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.疑难难突破河流的补给类补给类 型多种多样样，不同地区河流的主要补给补给 水源不同，同一河流不同时间时间 的主要补给补给 形式也不同， 但往往以某一种补给补给 形式为为主，河流的补给补给 不同，河流的水文特征也不尽相同，具体对应对应 关系如下表所示：Evaluation only.Evaluation on
16、ly. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Co
