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当今生物学知识的更新速度日趋加快,涉及面也日益广泛,仅仅局限于课本内容往往有些不足,因而适当地介绍一些现代生物学知识就很有必要。当然介绍时不能毫无顾忌地泛泛而谈,而应遵循一些基本的原则:①联系性。介绍时不应脱离中学生物课本,应对材料筛选后加以利用,使之与课本知识有机地联系在一起。②简明性。用巧妙的语言过渡介绍,尽力将复杂的问题简单化,许多地方应点到为止,防止过深过难,使学生如坠云雾。③实用性。主要是指对一些实际生活中的问题加以解释说明,对脱离实际太遥远的知识尽力避免。笔者在长期的生物学教学过程中,遵循上述三条原则,有了一些收获,现将常用的一些方法并佐以例证简单介绍如下。
Nowadays, the update of biological knowledge is accelerating and the coverage is becoming wider and wider. It is often confined to textbook contents that are often inadequate. Therefore, it is necessary to properly introduce some modern biological knowledge. Of course, you shouldn’t talk about it in a general way and you should follow some basic principles: 1 Continuity. The introduction should not be separated from the secondary school biology textbooks, and the response materials should be used after selection so that they are organically linked with the textbook knowledge. 2 Conciseness. Introduce the transition with clever language and try to simplify the complicated issues. Many places should be used to prevent over-difficulties and make students fall like clouds. 3 practicality. Mainly refers to explaining some real life problems, trying to avoid knowledge that is too far away from reality. In the long-term biology teaching process, the author has followed some of the above three principles and gained some gains. Now, some of the commonly used methods are briefly described with examples.