数形结合是历届高考的重点和热点,包含“以形助数”和“以数辅形”两个方面,其中“以形助数”是主要方面,其方法的关键是根据题设条件和探求目标,联想或构造出一个恰当的图形,利用图形性质探求解题途径,特别是对于填空题可以简捷地直接获得问题的结果.下面仅举几例,供参考. The combination of number and shape is the focus and hotspot of previous college entrance examinations, including two aspects: “helping number” and “numbering auxiliary”, in which “helping number” is the main aspect, and the key to its method. It is based on the conditions of the questions and the search objectives, associate or construct an appropriate figure, use the nature of the figure to explore the problem-solving approach, especially for the blank-filled questions can be directly and directly obtain the results of the problem. Here are just a few examples for reference.