《鲸》教学设计.pdf
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1、人教版五年级上册第三组鲸教学设计一、教学内容:第九课鲸二、单元教材分析本组教材编排了4篇培养学生科学素养、人文素养的说明文,是以前学习说明性文章的延伸和发展。本组教材的目的,一方面是为了让学生了解一些科学知识,唤起学生探索自然科学奥秘的兴趣,激发学生学习的自觉性,另一方面是让学生了解说明方法,体会作者怎样准确的用词、形象的表达,并在习作中加于运用。教学本组教材,应该注意一下几点:1、要有拓展课程资源,加强学科整合的意识,一方面鼓励学生利用多种渠道搜集有关信息以展知识面;另一方面在科学课师的帮助下,努力提高学生的科学素养。2、在教学内容上要统筹安排,把语文的学习与口语交际、习作、交流平台和课外书
2、屋有机的结合起来。3、不要把语文课上成科学常识课,对于语文中涉及的一些科学知识,在语文课上不宜深究,应把教学的着眼点放在理解体言文字所表达的主要内学习说明文的表达方法上。三、教学目标1、认识3个生字,会写10个生字。正确读写“目前、上腭、2 哺乳、退化、垂直、经验、判断、胎生、寿命”等词语。2、正确、流利、有感情地朗读课文。3、了解鲸的特点,进化过程、种类和生活习性等不同的知识,激发学生探索海洋每样动物的兴趣,培养学生热爱大自然,热爱科学和情感。4、认识列数字,举例子、作比较、打比方等说明方法。四、教学重难点1、在理解课文内容的基础上,学习作者用多种方法说明事物特点的表达方法。2、了解鲸的进化
3、过程。五、教学流程第一课时一、启发谈话,导入新课。1、同学们,我们生活在这个地球上,地球上生活着各种各样的动物,有的生活在陆地上,有的生活在海洋里,在陆地上生活的动物中,谁知道哪种动物最大呢?(大象)对,但还有一种比大象还大的多的动物,它生活在海洋里,它就是我们今天要了解的地球上最大的动物鲸2、板书课题(鲸),这节课我们先学习本课的生字、新词。二、默读课文、自学生字词。1、按以下要求自学。3、(1)标出自然段序号。文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY
4、8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O
5、8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN
6、9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E
7、10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 Z
8、A10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A
9、1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文
10、档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5(2)在课文中用“”圈出生字构成的词语,用“”框出读读写写上不是生字构成的词语,用“”画出不理解的词语。(3)给课文后面的生字组词,熟读生字和生字构成词语。(4)联系上下文或查字典理解词语的意思。2、检查自学情况。(1)指名轮读生字新词。(2)字形指导找出部首相同的生字:如:月:腭肚肺指导书写:肺:最后一笔是竖。滤:右边有里面是“七”哺:不要丢掉最
11、后一点。(3)提出不理解的词语,同学互帮理解。三、课堂练习。指导学生汉语拼音汗字本练习写生字。第二课时一、再读课文,初步感知课文内容。1、听录音范读课文。2、自由读课文,难读的地方多读几遍。文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A
12、1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文
13、档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY
14、8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O
15、8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN
16、9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E
17、10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 Z
18、A10Y2A1C2D53、分读段落,初步感知内容。(请七个同学分自然段来读课文,其他同学边听边想,课文是从哪些方面介绍鲸的、是用什么方法说明鲸的这些特点的?从每段中找到重点句或用几个字来概括每个自然段的内容)。4、默读思考,回答每个自然段分别讲了什么?第一段:写鲸的体形庞大。第二段:写鲸是哺乳动物。第三段:写鲸的种类。第四段:写鲸的进食。第五段:写鲸用肺呼吸。第六段:写鲸的睡觉。第七段:写鲸的生长。5、哪几个自然段在讲鲸的生活习性呢?(四至七自然段)二、学习第一段,体会写法。1、默读课文,勾画出鲸大的语句。2、提问:最大的鲸有多重?最小的鲸又有多重?我国捕获的一头鲸有多重?体长多少?3、教师根
19、据回答板书十六万公斤近四万公斤约十七米4、总结说明方法:作者在说明时列了很多数字,这种文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:
20、CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S
21、9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8
22、HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S
23、5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3
24、 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y
25、2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D5文档编码:CY8X4S9O8E8 HN9D4S5E10F3 ZA10Y2A1C2D55、用具体数字来说明事物的方法叫做“列数字”另外,作者列举了人们熟悉的事物大象和猪
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