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1、名师精编优秀教案生物圈中的动物2.2.1.3 无脊椎动物的主要特征一、教学目标1、说出软体动物和节肢动物常见的动物。2、认识蝗虫的形态结构以及与其生活习性相适应的特点，掌握节肢动物的主要特征。二、课时安排1 课时三、教学重点1、软体动物、节肢动物的主要特征2、蝗虫的形态结构以及与其生活习性相适应的特点四、教学难点如何初步确立生物体结构与功能相适应的观点。五、教学过程（一）导入新课复习提问：1、腔肠动物、扁形动物、线形动物和环节动物的主要特征分别是什么？2、怎样区分蚯蚓的前后端？这节课我们介绍下软体动物和节肢动物的主要特征。（二）讲授新课探究一：软体动物的主要特征阅读教材 75 76 页文字资料
2、，思考：1.河蚌的运动器官是什么？名师精编优秀教案2.河蚌是如何进行呼吸的？3.贝壳是怎么形成的呢？4.软体动物都有贝壳吗？5.软体动物的主要特征是什么？探究二：节肢动物的主要特征阅读教材 77 79 页文字资料，思考：1、蝗虫的身体分为哪几部分？2、蝗虫的足、出教材、翅各有何特点？3、气门有何作用？4、外骨骼有何则用？5、节肢动物的主要特征是什么？（三）知识运用1节肢动物的体表有坚硬的_，限制了身体的生长，所以节肢动物一般都有_现象2柔软的身体表面有外套膜，大多具有贝壳，运动器官是足，下列符合上述特征的动物类群是（）A腔肠动物B软体动物C线形动物D节肢动物（四）归纳小结一、软体动物的主要特征
3、文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1
4、N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I
5、8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2
6、A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5
7、V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R
8、9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7
9、G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3名师精编优秀教案1、身体柔软2、身体表面有贝壳（或被外套膜包裹的内壳）二、节肢动物的特征1、身体分部，2、躯体、足、触角均分节，3、体表有外骨骼。（五）随堂检测1蝗虫能适于空中和陆地生活，其形态结构特点有（）用气管呼吸胸部有两对翅有外骨骼，防止水分蒸发视觉发达，有
10、一对复眼ABCD2蝗虫防止体内水分蒸发的结构是（）A气管B触角C外骨骼D翅3下列动物中，不属于软体动物的是（）A河蚌文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7
11、G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10
12、A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B
13、3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2
14、X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW
15、10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH
16、7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3名师精编优秀教案B蟾蜍C扇贝D蜗牛六、板书设计第二章生物圈中的动物第一节无脊椎动物的主特征一、软体动物的主要特征1、身体柔软2、身体表面有贝壳（或被
17、外套膜包裹的内壳）二、节肢动物的特征1、身体分部，2、躯体、足、触角均分节，3、体表有外骨骼。七、作业布置如图是蝗虫的外部形态图，请据图回答问题：蝗虫在分类上属于昆虫，昆虫的身体分为_、_、_三部分；昆虫的体表有 _，有保护和支持体内柔软器官、防止水分蒸发的作用；昆虫的足和触角 _文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X
18、7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW1
19、0A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7
20、B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J
21、2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:C
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24、2J2X7G2A3名师精编优秀教案预习 80 83 页鱼、两栖动物和爬行动物鱼的主要特征两栖动物的主要特征爬行动物的主要特征八、教学反思文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8
25、E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A
26、3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V
27、1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9
28、I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G
29、2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3文档编码:CW10A5V1N2Y3 HH7B3R9I8E8 ZP2J2X7G2A3