五年级上册第三组教学指要小学语文-人教小学语文四年级课本

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走进科技之门

 

  科技是第一生产力,具有无穷的力量。这一组课文向学生开启了一扇走进科学技术的门,可以感受科学技术的神奇和威力,唤起探索自然和科学奥秘的兴趣。

 

生字:弄清读音与字形

 

  一、读音细分类

 

  平舌音:噪zào

 

  翘舌音:猪zhū 粘zhān 榛zhēn

 

  单韵母:滤lǜ 哺bǔ 肚dù

 

  复韵母:肺fèi 胎tāi 盗dào 夹jiā 废fèi

 

  前鼻韵母:判pàn 嫌xiá

 

  后鼻韵母:鲸jīnɡ 恙yànɡ nɡ nɡ nɡ

 

  整体认读音节:勿wù 晕yùn

 

  二、字形记得牢

 

  肺:右部分不要写成“市”。

 

  恙:羊字头的“竖”不露尾巴,并注意上小下大;

 

  藕:下边的“耦”左边是“耒”不是“未”,最后一笔要由捺变为点;

 

  废:最后一笔“捺”应写得长一点,以使这个字保持平衡不歪斜。

 

  三、多音字读得准

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