人教版语文四年级上册29 呼风唤雨的世纪1.ppt

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5、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,依赖,幻想,洞察,改善,改变原有情况使好一些,很清楚地观察,幻想出的情景,依靠某种人或事物不能自立或自给,朗读课文，读准字音，说说课文的主要内容。,整体感知,本文讲述了_一百年间_的发展历程，展示了科学技术的飞速发展给人类生活带来的_和_，唤起我们_、_和_的浓厚兴趣。,20世纪,科学技术,巨大变化

6、,灿烂前景,热爱科学,学习科学,探索科学,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,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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8、才路,状元成才路,状元成才路,状元成才路,总述、比喻、点题,20世纪是一个呼风唤雨的世纪。,“呼风唤雨”在词典中解释为“使刮风下雨，原指神仙道士的法力，现在比喻能够支配自然”。在课文中比喻人类在利用自然方面取得了重大突破，不再像从前那样受到自然条件的严格限制。,课文解读,是谁来呼风唤雨呢？当然是人类。靠什么呼风唤雨呢？靠的是现代科学技术。,设问,发现：经过研究、探索等，看到或找到前人没有看到的事物或规律。 发明：创造（新的事物或方法）。,在20世纪一百年的时间里，人类利用现代科学技术获得那么多奇迹般的、出乎意料的发现和发明。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才

9、路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才

10、路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,作比较,正是这些发现和发明，使人类的生活大大改观，其改变的程度超过了

11、人类历史上百万年的总和。,概括地说明了现代科学技术对人类生活的巨大影响。,人类在上百万年的历史中，一直生活在一个依赖自然的农耕社会。那时没有电灯，没有电视，没有收音机，也没有汽车。,农耕生活,人们只能在神话中用“千里眼”“顺风耳”和腾云驾雾的神仙，来寄托自己的美好愿望。,指人们想象中的超脱自然的能力。,在科技不发达的年代，人们只能用这种方式寄托自己的美好愿望。,祖先的幻想纷纷变成了现实：,20世纪的成就，真可以用“忽如一夜春风来，千树万树梨花开”来形容。,现代科学技术成就的变化之快、变化之大。,忽如一夜春风来，千树万树梨花开。,人类登上月球,潜入深海 探索奥秘,1923年，英国数学家、哲学家伯

12、特兰罗素说：“归根到底，是科学使得我们这个时代不同于以往的任何时代。”,引用：概括总结，点明主题。强调了科学技术在20世纪的重要作用。,板书设计,总起：20世纪是呼风唤雨的世纪,辉煌的世纪灿烂的明天,呼风唤雨的世纪,回应：人类靠科学技术呼风唤雨,证明：科学技术使人类生活发生巨变,总结：科学技术创造美好的现在和未来,拓展延伸,20世纪的重大发明和发现：20世纪，科学技术的发展催生了许多发明和发现，如1901年德国物理学家伦琴发现X射线，1923年瑞典工程师制成世界上第一台电冰箱，1958年美国人肖洛和汤斯发现激光，1969年美国五角大楼首创因特网（Internet的中文译名）等。,1.连一连。,

13、创造 奥秘 改善 梦想探索 生活实现 奇迹,随堂练习,2.按要求写句子。 （1）人类获得了那么多奇迹般的、出乎意料的发现和发明。（缩句）_（2）人类靠现代科学技术呼风唤雨。（改成设问句）_,人类获得了发现和发明。,人类靠什么呼风唤雨呢？靠的是现代科学技术。,3.拓展阅读。,好书推荐 2000年，浙江少年儿童出版社出版了科学改变人类生活的100个瞬间一书，这本书由路甬祥主编，书中介绍了20世纪世界上最伟大的科学发现和技术发明。,1.课文写得真精彩，我要多读几遍。,朗读指导：本篇课文的朗读基调是激昂、欣喜的。朗读时，语气是惊喜、舒畅的，语调是昂扬向上的，语速较快。,2.作者仅用短短的几百字就清楚地

14、介绍了一百年的科学技术发展，我们来联系生活实际，谈谈自己的感受。,参考答案：电视机、程控电话、因特网这些现在看来再普通不过的东西，都是近百年来人们不断努力研究的结果。它们提高了人们的生活质量，让生活发生了翻天覆地的变化。我相信，科学技术的迅猛发展，一定会使人们未来的生活更加灿烂、光明。,3.我们一起来读读下面的句子，认真体会加点词句的意思，再把这些句子抄下来。,20世纪是一个呼风唤雨的世纪。人们只能在神话中用“千里眼”“顺风耳 ”和腾云驾雾的神仙，来寄托自己的美好愿望。20世纪的成就，真可以用“忽如一夜春风来，千树万树梨花开”来形容。,参考答案：(1)“呼风唤雨”的意思是使刮风下雨，原指神仙道

15、士的法力，现在比喻能够支配自然或左右某种局面，文中比喻人类在利用自然方面取得了重大突破，不再像从前那样受到自然条件的严格限制。 (2)“千里眼”“顺风耳”在古典小说中指能够看得很远和听得很远的人。文中指古代人们想象的超脱自然的能力。“腾云驾雾”指传说中,利用法术乘云雾飞行。在文中指人们想象中的一种非凡的能力。在科技不发达的年代，人们只能用这种方式来寄托自己的美好愿望。 (3)“忽如一夜春风来，千树万树梨花开”出自盛唐边塞诗人岑参的白雪歌送武判官归京，诗句形容纷纷大雪好似梨花开放，原意是形容北国边塞异常寒冷。后来这句诗经常被人用来形容某些生机竞发的事物或者蓬勃向上的形势。课文,中引用这句古诗，表现了现代科学技术成就的变化之快、变化之大，是人们始料未及的，给人们带来了意想不到的惊喜。,小练笔我要把这篇课文读给爸爸、妈妈或别的长辈听，请他们说说科技发展带来的变化，再把他们说的写下来。,参考答案：今天，我把呼风唤雨的世纪读给爷爷、爸爸听。爷爷听后给我讲了20世纪五六十年代的家庭“老四件”自行车、手表、缝纫机和收音机。爸爸说：“八九十年代是新四,件电视机、洗衣机、电冰箱和空调。而进入21世纪，许多更高档的家电已经进入普通老百姓家里，智能电视、笔记本电脑、家庭影院等已不稀奇了。”,看图说句子 看电视，只需轻轻地按动遥控器，清晰的画面立刻展现在眼前_；_。,课后作业,