《趙州橋》教案

1、趙州橋教案馬欄小學 張桂英趙州橋教案（第一課時）一、激情導入孩子們，相信大家都見過橋，那么有這樣一座橋，古人贊它：“水從碧玉環(huán)中過，人在蒼龍背上行”。今天它被列為世界第十二處“國際土木工程歷史古跡”，它就是我們今天要學習的趙州橋，請大家看大屏幕，讓我們一起走進這篇課文，齊讀課題19趙州橋。二、讀文識字，感知主要內容師：請同學們打開書，聽好要求：讀準字音，讀順句子，讀好課文后，讀一讀黑板上的詞語。趙縣、安濟橋、石頭砌成、石匠、橫跨、牢固、雕刻、抵著、智慧、前爪。生：自由讀課文。師：看看大家對本課生字掌握的怎么樣，老師想請一名學生來領讀。生：領讀詞語，先讀生字，再讀詞語：師：點撥詞語和生字：石匠、

2、抵著、前爪。師：去掉拼音，還認識嗎？給老對讀讀聽?？茨銈冏x得真好，老師隨便指，你們能讀嗎？生：男孩讀，女孩讀。師：看來你們對生字、詞掌握的真不錯，請你們端好書，認真聽，可以作口型跟著讀，邊讀邊想想課文主要寫了什么主要內容。生：寫了趙州橋是李春設計的，橋上刻著龍，非常好看。師：好看，是指美觀，誰還能再說一說。生：這篇課文的主要內容是寫了趙州橋的雄偉堅固和美觀。師：你說的棒極了！三、研讀課文、重點學習二、三自然段師：如此堅固、雄偉、美觀的趙州橋，它設計者是誰，建于何時何地呢？請大家齊讀第一自然段。教師板書：世界聞名 文中說它是世界聞名，手指板書問：這個詞是什么意思？生：是有名的意思。生：是在全世界

3、都有名的意思。師：它之所以在全世界有名，這座趙州橋有哪些特點呢？請大家默讀課文，批畫出相關的字句。畫完后，再與老對交流一下。教師巡視學生自學情況。生：邊讀邊批畫。師：誰來說趙州橋有哪些特點？生：趙州橋雄偉，我是從第二自然段看出來的。學生讀文一直到“橫跨在37米多寬的河面上”。教師隨機板書：雄偉。師：這一部分你有什么要說的呢？生：趙州橋橋長50多米，有9米多寬，我是從這看出趙州橋的雄偉的。生：我還從趙州橋下面沒有橋墩，全部用石頭砌成知道的。師：你知道什么？生：趙州橋非常的雄偉，它橫跨在37米多寬的河面上。師：你們注意到沒有，這部分用了3個數字描寫趙州橋長50多米，有9米多寬，還有37米這些數字詞

4、，作者準確地寫出了趙州橋的雄偉。如此雄偉的趙州橋我們有感情地讀一讀好嗎？生：一名學生讀課文，教師同時強調數字的詞要重讀。生：齊讀這一段。師：這一段你還有什么想說的。生：學生讀第二段后邊的課文。說趙州橋的有4個小橋洞、1個大橋洞。生：我來補充四個小橋洞發(fā)大水的時候可以流水，使橋不容易沖壞了。師：這種設計多么巧妙呀。書上說這種設計是一個創(chuàng)舉，什么是創(chuàng)舉？生：創(chuàng)舉就是創(chuàng)造。師：在這之前，有像趙州橋這么雄偉的嗎？生：沒有。師：創(chuàng)舉就是從未有過的舉動或事業(yè)。這種說法有什么好處呢？你們再讀讀這部分內容，結合著圖盡量用上書上的語言來說一說。誰說的好，老師就讓誰到前面說給大家聽。生：自由練說。生：我來給大家說

5、一說。大橋洞兩邊還有兩個小橋洞，平時河水從大橋洞流過，發(fā)大水時從小橋洞流過。生：這種設計減輕流水對橋身的沖擊力，減輕橋的重量，節(jié)省了石料。師：這種石匠李春的巧妙設計，真是一種創(chuàng)舉呀。全部用石頭砌成，沒有橋墩。有1300多年歷史的石拱橋，經歷了風風雨雨，經受了無數次洪水的沖擊，可見它是多么的堅固。生：齊說堅固。教師板書。師：這座橋還有什么特點。誰想接著說。生：這座橋不但堅固而且美觀。教師板書美觀。生：學生讀第三自然段。師：你們看這些龍真的活龍活現，都雕刻了哪些不同的姿態(tài)。生：讀課文。有的。師：引讀。有的刻著兩條相互纏繞的龍。生：做動作。師：再引讀后面兩個有的。生：接著做動作。師：自己邊讀邊想象這

6、些龍的不同姿態(tài)，自己練讀。想給大家讀的請舉手。生：一名學生看著大屏幕讀給大家聽，其余學生閉眼想象龍的不同姿態(tài)。師：大家仿佛看到了哪些栩栩如生的龍吧。生：一起說栩栩如生這個詞。師：多美的龍啊，請大家看大屏幕，齊讀這一段。想不想把這美的語言記下來，請大家練習背一背吧。屏幕中幾個有的用了不同的顏色，你可以先記它們，那樣記得更快。教師用鼠標指這幾個詞。生：看大屏幕提示背誦。一名學生。師：你真了不起，誰還能背？生：全體學生站起來背誦。師：這段話中有一個泡泡，你們發(fā)現了沒有，誰來告訴大家寫了什么？象這樣的泡泡我們在讀課文中可不要忽視呀。生：這座橋不但堅固，而且美觀。師：這句話的前半句總結了上一段的內容，后

7、半句概括了下一段的內容，這樣的句子叫過渡句，它起著承上啟下的作用。使文章的結構更加緊密，我們在寫作時也可以用上這樣的句子。生：齊讀這句話。師：趙州橋如此雄偉、堅固、美觀，在你們的讀書聲中，老師聽出了你們對趙州橋的真誠夸贊，你還想夸夸誰。生： 李春。師：光李春一人建造的嗎。生：人民。師：勞動人民。板書：智慧和才干。讓我們來夸勞動人民吧，齊讀最后一自然段。再讓我們大聲地贊美一下這些勞動人民，齊讀這一段。四、回顧全文師：請大家看大屏幕，跟著這段錄像，你可以讀也可以背。放錄像。生：有背的，有看字幕默讀的。師：希望同學們通過自己的智慧和才干，造出世界上最先進的橋。五、學寫生字指導：縣和參 學生書寫，教師

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