只用直尺(无刻度)作图是近年来的一类新型考题.只用直尺(无刻度)作图问题,具有趣味性、探索性、创造性,它注重数学思维的考查.由于少了圆规的相助,直尺只能用来画直线、射线或线段,以及由它们组合成的图形.解答此类问题时,在动手操作探索作图思路的过程中,我们会感受到数学创造的乐趣.但是许多学生遇到这类问题往往无从下手,束手无策.笔者认为这类题目主要有以下三种题型.通过对 Only using ruler (without scale) for drawing is a new type of test in recent years.Using only ruler (without scale) mapping problem, with interesting, exploratory, creative, it focuses on mathematical thinking test. Compasses, ruler can only be used to draw straight lines, rays or segments, and the combination of the graphics formed by them.When answering such questions, we will feel the joy of mathematical creation in the hands-on exploration of mapping ideas However, many students often encounter such problems can not start, helpless .I think these questions mainly have the following three kinds of questions.