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高考数学选择题占总分值的五分之二,其解答特点是“四选一”.怎样才能快速、准确、无误地选择好这个“一”呢?本文例析解答选择题的几种方法,以期对大家有所帮助.一、直接法直接从题目条件出发,运用有关概念、性质、定理、法则和公式等知识,通过严密推理和准确计算,从而得出正确结论.涉及概念、性质的辨析或运算较简单的题目,常用此法.
The college entrance examination mathematics multiple-choice questions account for two-fifths of the total score, the answer feature is “select one ”. How can we quickly, accurately and correctly choose this “a ”? Several methods are expected to be helpful to everyone. First, the direct method proceeds directly from the subject condition, applying knowledge of concepts, properties, theorems, rules, and formulas, through rigorous reasoning and accurate calculations to arrive at a correct conclusion. Concept, nature of the analysis or operation of a relatively simple topic, commonly used in this method.