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殷希群老师,湖北省特级教师.函数压轴题历来是考试的难点,下面是殷老师的破解之法请读者仔细体会“就汤下面”的策略,考虑如何顺势而为.函数、导数与不等式压轴题的综合性较强,难度较大,通常会设置两问或三问,并且大多具有递进式结构.在处理这类试题的第Ⅱ问或第Ⅲ问的时候常常要用到前面第Ⅰ问或第Ⅱ问的结论或方法这种顺势而为的解题策略可把它叫做“就汤下面”利用“就汤下面”策略进行解题的基本思路是注意把前一问的结论作为后续问题的引理,或者从前述问题中引进方法.具体如何进行“就汤下面”呢?或者说如何入手呢?下面看几道题目.
Yin Xiqun teachers, teachers in Hubei Province. Finale of the function has always been the difficulty of the exam, the following is the teacher Yin cracked the law to ask the reader to carefully understand the “under the soup” strategy to consider how to take advantage of. Functions, derivatives and inequalities Finale of the comprehensive, more difficult, usually set two or three questions, and most of them have a progressive structure .In this type of test question II or III asked when often used in front of the I ask or II question the conclusion or method of this homeopathy problem solving strategy can be called “under the soup ” use “under the soup ” strategy to solve the basic idea is to pay attention to the previous The conclusion of the question as a follow-up question lemma, or the introduction of the method from the aforementioned questions .How to proceed specifically how to start the following questions.