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中考近几年好题不断,在通性通法的基础上,大胆创新,本人有幸参加阅卷工作,就宁波中考压轴题进行了整理与思考,与读者一同体验解题的艺术.一、原题呈现题目:(2013年宁波第26题)如图1,在平面直角坐标系中,O为坐标原点,点A的坐标为(0,4),点B的坐标为(4,0),点C的坐标为(-4,0),点P在射线AB上运动,连结CP与y轴交于点D,连结BD.过P,D,B三点作⊙Q与y轴的另一个交点为E,延长DQ
In the past few years in the exam a good question constantly, based on the General Method, bold innovation, I was fortunate enough to participate in the marking work, Ningbo Fushu axis compression finishing and thinking, with the reader to experience the art of problem solving. In the plane Cartesian coordinate system, O is the coordinate origin, the coordinates of point A is (0,4), the coordinates of point B is (4,0), the point The coordinate of C is (-4,0), point P moves on ray AB, and connects CP and y axis to point D, which links BD. After P, D and B are the three points, the other intersection of ⊙Q and y axis For E, extend DQ