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选择题在高考中有其自身的功能和存在的价值。同时也有其自身的特点。如何提高选择题的正确率?本文拟通过具体实例说明做选择题时必须予以注意的三个问题和经常用到的几种思想方法。希望对读者能有所裨益。一、必须注意的三个问题1.认真审题、确认已知审题,看似老生常谈,实在至关重要。有些考生做题急于求成,读起题来“一目十行”,草率从事。往往忽略、误解了题目中给出的条件。甚至按照自己想象的条件去解题,当然不可能做对。任何物理定律、定理都是在一定的条件下才能成立。选择题的一项重要功能就是考查学生能否明确定律、定理的适用条件。例如
The multiple-choice questions have their own function and existing value in the college entrance examination. It also has its own characteristics. How to improve the correctness of multiple choice questions? This article intends to illustrate three issues that must be paid attention to when making multiple choice questions and several thought methods that are often used through specific examples. I hope to benefit readers. First, the three issues that must be taken care of. 1. Serious examination of questions and confirmation of known issues, seemingly clichés are really crucial. Some candidates are eager to solve the problem, read the title to “one line and ten lines” and rush to engage. Often overlooked and misunderstood the conditions given in the title. Even solving problems according to their own imagination, of course, is impossible. Any physical laws or theorems can only be established under certain conditions. An important function of the multiple-choice question is to examine whether the student can clearly determine the applicable conditions of the law and theorem. E.g