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在近年高考生物试卷中,实验设计题是最让考生棘手的试题之一,它既是当前高考生物的一大热点,也是一大难点。其实生物实验设计题也并非深不可测、无法驾驭的,只要考生具备坚实的理论知识基础和实验技能基础,掌握解题的技巧和方法,就能化难为易,游刃有余。下面对这类高考题谈一谈我个人的解法技巧与思路:一、明确实验目的——实验的核心实验目的是实验的焦点,所有实验问题的研究都是围绕实验目的展开。任何实验设计题都是要考生通过实验研究实验变量与反应变量的前因后果关系,所以试题中都会给出实验目的。通过分析实验目的,不
In recent college entrance examination biological papers, the experimental design questions is one of the most difficult questions candidates, it is not only a hot college entrance examination biology, but also a major difficulty. In fact, the design of biological experiments is not unpredictable and unmanageable, as long as candidates have a solid theoretical foundation of knowledge and experimental skills, master the skills and methods to solve problems, we can make life easier. The following questions on this type of college entrance examination talk about my personal skills and ideas: First, a clear purpose of the experiment - the core of the experiment The purpose of the experiment is the focus of the experiment, all experimental questions are focused on the purpose of the experiment. Any experimental design questions are to test the students through experimental study of experimental variables and response variables of the antecedents and consequences, so the test will give the purpose of the experiment. By analyzing the purpose of the experiment, no