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一、人教社初中《生物》第一册（下）第3页在说明草履虫的细胞结构时指出:“草履虫的细胞结构与植物细胞基本相同,也是由细胞膜（表膜）、细胞质和细胞核组成的。”这里“细胞膜（表膜）”这样的表述会给人造成一种“表膜就是细胞膜”的误解。 实际上,草履虫的表膜在细胞表面,是由三层单位膜所构成。最里边的一层和中间一层形成按一定规律排列的肾形表膜泡,最外面的一层为质膜（质膜就是细胞膜,也叫做细胞质膜）。因此,准确地表述应在“表膜”后加上“的最外面一层单位膜”。但根据新教材教学大纲规定的目的和要求,在此教科书中不宜出现“单位膜”。所以,原文的表述应把“（表膜）”删去方才妥当。
I. In the junior high school “Biology” Volume I (bottom) page 3, in describing the cellular structure of Paramecium, it was pointed out: “The paramecium’s cell structure is basically the same as that of plant cells, but also the cell membrane (membrane), cytoplasm and The composition of the cell nucleus.” The expression “membrane (membrane)” here gives rise to a misunderstanding of “the pellicle is the cell membrane.” In fact, the pellicle of Paramecium is composed of three unit membranes on the cell surface. The innermost layer and the middle layer form a kidney-shaped epidermal bubble arranged in a regular pattern. The outermost layer is the plasma membrane (plasma membrane is the cell membrane, also called the cytoplasmic membrane). Therefore, an accurate expression should be added after the “membrane” with “the outermost unit membrane.” However, according to the purpose and requirements of the syllabus of the new teaching materials, “unit membranes” should not appear in this textbook. Therefore, the description of the original text should delete “(membrane)” only properly.