选择题以其“题型较小、检查面宽、解法灵活、答卷简单、批阅方便”等特点在历年高考试卷中倍受亲睐,60分,占卷面总分的40％.解答好选择题的关键是准确、迅速,如果解答一道选择题“超时”答对,那就意味着隐性丢分.因此,寻求简便快速解法成为广大考生的热切需求.本文结合近几年高考试题中部分选择题,介绍一种简便实用的方法——特殊值检验法. The multiple-choice questions are featured in the high test papers of the calendar year with 60 percent points, accounting for 40% of the total volume of the paper. The key to the question is accurate and prompt. If answering a multiple-choice question “overtime” is correct, it means implicitly losing points. Therefore, the search for simple and rapid solutions has become an ardent demand for the majority of candidates. This article combines some of the questions in the high exam questions in recent years. Questions, introduce a simple and practical method - special value test method.