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《爬山虎的脚》(人教版四年级上册)是一篇说明性文章。这篇精读课文层次明显,介绍爬山虎叶子、脚的特点部分写的是事物的静态特点,介绍爬山虎如何一步一步往上爬的部分写的是事物运动变化的特点。本组课文以“观察与发现”为主题,选编了4篇课文,单元导语要求在了解课文主要内容的基础上,认真体会作者是怎样观察的,并学习他们的观察方法。“偏”与“正”先来看第一次教学课文第5自然段的过程——
“The foot of Parthenocissus” (PEP fourth grade) is an illustrative article. This concious text level is clear, the introduction of ivy leaves, the characteristics of the foot part of the article is written about the static characteristics of things, how to introduce step by step to climb part of the write is the characteristics of changes in things. This group of text to “observation and discovery ” as the theme, selected 4 text, unit lead language requirements in understanding the main contents of the text, based on careful understanding of the author is how to observe and learn their observation method. “Partial ” and “positive ” first look at the first teaching text fifth natural section of the process -