《青岛三级科学下册蚂蚁课件》由会员分享，可在线阅读，更多相关《青岛三级科学下册蚂蚁课件（16页珍藏版）》请在金锄头文库上搜索。
1、 第五单元动物王国青岛版小学科学三年级下册制作人：钟风秀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.（1 1）蚂蚁蚂蚁蚂蚁蚂蚁 太小又放在昆虫盒里的，不要拿出来太小又放在昆虫盒里的，不
2、要拿出来观观观观察，察， 我我们们们们要借助放大要借助放大镜镜镜镜去去观观观观察。察。（2 2）观观观观察要仔察要仔细细细细，小，小组组组组分工合作，填好分工合作，填好观观观观察察记录记录记录记录 表表 。（3 3）重点）重点观观观观察察蚂蚁蚂蚁蚂蚁蚂蚁 的身体的构造，的身体的构造， 数一数数一数蚂蚁蚂蚁蚂蚁蚂蚁 的身的身 体由几部分体由几部分组组组组成？每一部分上成？每一部分上长长长长有什么？有什么？（4 4）注意不要）注意不要伤伤伤伤害害蚂蚁蚂蚁蚂蚁蚂蚁 ！ Evaluation only.Evaluation only. Created with Aspose.Slides for .N
3、ET 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.足头胸腹触角蚂蚁的身体分为（ ）、（ ）、（ ）三部分， 头上有（ ），胸部有（ ）。头胸腹 一对触角三对足Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Pr
4、ofile 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.蚂蚁的“家庭”蚂蚁生活在一个非常有组织的 群体中 。蚂蚁群体有严格的等级分 工。一窝蚂蚁一般有雌蚁（蚁后） 、雄蚁、工蚁、兵蚁，每窝蚂蚁的 数量都不一样，少则几十只，多则 上万只甚至几十万只，但一般为500 2000只。Evaluation only.Evaluation only. Created w
5、ith 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.蚁后 在群体中体型最大，特 别是腹部大，与雄蚁在空中 交配后，脱掉翅膀，寻找场 地建筑蚁巢，主要职责产卵 、繁殖后代和统管这个群体 大家庭。 蚁后Evaluation only.Evaluation only. Create
6、d 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.雄蚁雄蚁：头圆小，上颚不发达，触角细长。雄蚁 寿命最短，只有几个星期，主要职能是与蚁后 在空中交配。Evaluation only.Evaluation only. Created with Aspose.Slides
7、 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.工蚁：是没有翅膀的，一般为为群体中最小的个体， 但数量最多。我们常见的便是工蚁。其主要职责是 建造和扩大巢穴、采集食物、伺喂幼蚁及蚁后等， 是“家庭”的主体。工蚁Evaluation only.Evaluation only. Created with As
8、pose.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.兵蚁：是由负责保卫他们的“家园”的雌蚁组成。 头大，上颚发达，可以粉碎坚硬食物，在群体遇到 危险时可保卫群体的安全。兵蚁Evaluation only.Evaluation only. Created with Aspose.Slide
9、s 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.蚂蚁的种类蚂蚁王国是一个庞大的家族，蚂蚁的种类大 约有16000多种，单单在我国就有600多种，让我 们再认识几种蚂蚁，看看它们的身体特点和你刚才 观察到的蚂蚁有没有共同点，好吗？Evaluation only.Evaluation only. Creat
10、ed 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.蜜罐蚁红牧蚁行军蚁农夫蚁Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.
11、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.蜜罐蚁行军蚁农夫蚁红牧蚁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
12、.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.观察记录表特 征蚂蚁蜜蜂蝴蝶身体分为头、胸、腹三部分，头上有一对触角，胸部有三对足 。身体分为头、胸、腹三部分，头上有一对触角，胸部有三对足 。身体分为头、胸、腹三部分，头上有一对触角，胸部有三对足 。像蚂蚁、蜜蜂、螳螂这样身体分为头、胸、腹三部 分，头上有一对触角，胸部有三对足的动物叫做昆虫。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Cli
13、ent 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.辨一辨这些小动物是昆虫吗？为什么？蝴蝶苍蝇蚯蚓蝉蟋蟀蚜虫蝎子蜘蛛蜻蜓蝗虫甲虫瓢虫Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created wi
14、th Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.甲虫瓢虫蜘蛛蝎子蜻蜓蝗虫蚜虫蟋 蟀蚯蚓苍蝇蝴蝶螳螂蝉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
15、 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.1通过观察我们发现，蚂蚁的身体分为 、 三部分，头部有一对 ，胸腹部有 对足，像这样的动物我们称为 。2“昆虫都是有害的！”你认为这种说法对吗？ 说说你的看法。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 Clie
16、nt Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.我还特意制作了两只昆虫模型呢，它们漂亮吗？ 你们想做吗？课后请大家找齐材料，每人做一只昆虫 模型，下节课我们举行一个“昆虫模型展览会”好吗？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.
