2020部编版二年级语文下册16 雷雨课件.ppt

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7、才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,【渐渐】 【黑沉沉】 【清新】 【一动不动】 【越来越】,表示程度或数量逐步缓慢增减。,表示程度随着时间发展。,清爽而新鲜。,形容毫不移动。,形容黑暗（多指天色）。,词语解释,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

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12、来描写雷雨前的景象？主要抓住了哪几样景物进行描写？,对比手法,课文解读,风来之前,风来之时,满天的乌云，黑沉沉地压下来。,乌云,压下来,树上的叶子一动不动,叶子,一动不动,蝉一声也不叫,蝉,一声也不叫,忽然一阵大风，吹得树枝乱摆。,大风,树枝,乱摆,一只蜘蛛从网上垂下来，逃走了。,蜘蛛,垂下来，逃走了,闪电越来越亮，雷声越来越响。,闪电,雷声,越来越亮,越来越响,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成

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14、才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,为什么会打雷：雷雨天气，厚厚的 云层在空中翻滚，由于气流的摩擦 分别带上正、负不同的电荷，这些 电荷聚集在云层的两端，并且随云 层的增厚，电荷不断增加。当电荷增加到一定程度，就会穿过云层放电，正负电荷中和时，会放出大量的热，使空气迅速

15、膨胀发出巨大的响声，这就是雷。,知识备查,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成

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17、才路,状元成才路,状元成才路,状元成才路,风来之前,满天的乌云，黑沉沉地压下来。树上的叶子一动不动，蝉一声也不叫。,压,乌云来势凶猛,一动不动,一声也不叫,渲染了一种大雨来临前紧张、压抑、沉闷的气氛。,亲爱的同学们，你还知道哪些“一不”式词语呢？,一蹶不振 一成不变 一丝不苟 一文不值 一病不起 一声不响,一_不_ 一_不_ 一_不_ 一_不_ 一_不_ 一_不_,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元

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19、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,风来之时,忽然一阵大风，吹得树枝乱摆。一只蜘蛛从网上垂下来，逃走了。,忽然,风来得很急,树枝乱摆,风很大,垂,逃,说明风特别大，蜘蛛特别害怕，赶快逃走了。,动作描写,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成

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21、才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,闪电越来越亮，雷声越来越响。,节奏越来越快，程度越来越强,雨 中,

22、哗，哗，哗，雨下起来了。,思考：雨下得怎么样？你是从哪里体会到的？,拟声词连用,展现了雨从天而降时又大又急的情景。,读课文第5自然段，说说作者是怎么表现“雨越下越大”的？,雨越下越大。往_望去，_啊，_啊，都_了。,窗外,树,房子,看不清,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

23、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

24、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,雨越下越大。往窗外望去，树啊，房子啊，都看不清了。,都看不清了,外面一片朦胧的景象，说明雨下得又大又猛又急。,雨 后,天亮起来了。打开窗户，清新的空气迎面扑来。,和雨前的景象形成对比,太阳出来了。一条彩虹挂在天空。,挂在天空,彩虹,出来了,太阳,蝉叫了。,蝉,叫了,蜘蛛又坐在网上。,蜘蛛,坐在网上,池塘里水满了，青蛙也叫起来了。,池塘,水满了,青蛙,叫起来了

25、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

26、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

27、,雨停了。太阳出来了。一条彩虹挂在天空。蝉叫了。蜘蛛又坐在网上。池塘里水满了，青蛙也叫起来了。,挂,坐,说一说：为什么作者会将雷雨前、雷雨中、雷雨后的景象写得如此细致？,能够把这些场面写得如此生动形象，是因为作者留心观察，善于去发现、去探究。,雷雨中雨下起来越下越大渐渐小了,雷雨后空气太阳彩虹池塘水满了,认真观察 其乐无穷,雷雨前乌云大风闪电、雷声,结构梳理,课堂小结,课文按雷雨前、雷雨中、雷雨后的顺序，用简炼的语言，形象地描绘了一幅夏日雷雨图，抒发了作者对大自然的热爱之情。,随堂练习,1.照例子，写词语。,黑沉沉 白花花 绿油油 金灿灿 红艳艳 灰蒙蒙 蓝盈盈 热腾腾,_ _ _ _,慢吞吞

28、 水汪汪 湿漉漉 乱蓬蓬,2.根据课文内容填一填。,雨停了。太阳出来了。一条彩虹_在天空。蝉叫了。蜘蛛又_在网上。池塘里水满了，青蛙也叫起来了。,挂,坐,视频欣赏：雷雨天不要躲在大树下,3.相关知识。,课后习题参考答案,朗读课文。说说雷雨前、雷雨中和雷雨后景色的变化。背诵课文。,朗读指导： 本文按时间的顺序写了一场雷雨的全过程，朗读时应边读边根据文字想象画面。,参考答案： 雷雨前：满天的乌云，黑沉沉地压下来。树上的叶子一动不动，蝉一声也不叫。刮来一阵大风，吹得树枝乱摆。一只蜘蛛从网上垂下来，逃走了。闪电越来越亮，雷声越来越响。 雷雨中：雨下起来了，越下越大，窗外的景物全看不清了。渐渐地，雷声小

29、了，雨声也小了。,雷雨后：天亮起来了，空气很清新。太阳出来了。一条彩虹挂在天空。蝉叫了。蜘蛛又坐在网上。池塘里水满了，青蛙也叫起来了。这一切让人感觉清新和愉悦。,读句子，注意加点的词，再把句子抄写下来。,满天的乌云，黑沉沉地压下来。 一只蜘蛛从网上垂下来，逃走了。 一条彩虹挂在天空。,抄写之前，先大声读一读这三个句子，边读边想一想带点字好在哪里。另外，在抄写时，不要看一个字写一个字，要先看一句后再写，能把字写得工整、干净就更好啦！,“压”用得十分巧妙，形象地写出了乌云来势凶猛。 “垂”使人感到风特别大，让蜘蛛特别害怕。 “挂”让人们感到彩虹像一条五颜六色的绸带挂在空中，十分美丽。,读一读，说说你见过什么样的雨，当时是怎样的情景。,老师指导： 同学们可以根据自己平时的观察，然后进行回忆，选取自己印象最深刻的雨来描述，注意抓住典型景物来表现雨的特点。,毛毛雨 阵雨 雷雨 暴(bo)雨,