选择题是高考重要题型之一,以容易题和中档题为主,侧重于“双基”的考查。其题设条件与备选答案往往经过命题者深思熟虑的加工和别具匠心的改造,以多变的形式设置陷阱。转化法思维转化法,是指不被所给问题的形式所束缚,而能依具体情况“变通”成另外一种更简捷的形式。如将一个难题分解成几个简单的小问题,将直接难求解的问题变为间接易求解的问题等。这种问题变换的技巧常 Multiple-choice questions is one of the important questions of the college entrance examination, with easy questions and mid-range questions, focusing on “double basis ” test. The conditions and alternative answers are often well thought out by the proposition of the processing and ingenuity of the transformation, to change the trap set in the form. Conversion method of thinking method of transformation, is not given the form of the problem given, but according to the specific circumstances “alternative ” into another more simple form. Such as a puzzle broken down into a few simple questions, the problem will be directly solved difficult to solve the problem indirectly and easily. This problem transformation skills often