近十几年来,全国初中数学竞赛命题的趋势之一是部分试题来源于课本.一方面体现在有的试题本身就是由课本的例题、习题甚至重要的定理改编、引申和拓展而成,而另一方面反映在试题的解题思路及方法来自于课本中典型例习题的求解和定理的探究.下面笔者以两道初中数学竞赛 In recent ten years, one of the trends of the national mathematics competition in junior middle schools is that some of the questions come from the textbooks. On the one hand, some questions are themselves composed of textbook examples, exercises and even important theorems, extended and extended, On the one hand, reflected in the problem-solving ideas and methods come from the textbook classic example of the problem solving and theorem of inquiry below the author to two junior high school mathematics competition