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高中生物乙种本(全一册)在一些概念性的描述中,有二十五处运用了“主要的”措词,在教学过程中,经常有同学问:例如“RNA 主要存在于细胞质中”,那么还有 RNA存在于哪里呢?这就要求我们教师在备课时多查一些资料,多进行一点研究,把这些问题向学生交代清楚,同学们也就会没有疑虑了。下面仅根据笔者在教学过程中的一点体会,列举课文中一些“主要的”说法,加以辨析。课文第十页:“脂肪主要是生物体内储藏能量的物质”。这就是说在生物内,储藏能量的物质除了脂肪以外,还有糖类、蛋白质等。在第十页中又讲到:“类脂中的磷脂是构成细脆膜的重要成分,也是构成内质网膜
In a number of conceptual descriptions, 25 used “primary” terms. During the teaching process, students often asked questions such as: “RNA is mainly found in the cytoplasm ”So, where is the RNA still exist? This requires that our teachers check more information during lesson preparation, do more research, and explain these questions to students clearly. Students will also have no doubts. The following only based on the author in the teaching process a little experience, cited in the text of some of the “main” argument, to be analyzed. Text page tenth: “fat is mainly the material stored in the body of biological substances.” This means that in the living things, besides the fat, there are sugars, proteins and the like that store energy. In the tenth page also said: "Lipid phospholipids constitute an important component of fine brittle membrane, but also constitute the endoplasmic reticulum