中考数学试题具有引领课堂教学的导向作用,但因“施用”却不“适用”的整体复制模式(搬运试题),导致其实用价值流失.因此,研究其“适用”教学的意义重大.1试题呈现题目已知二次函数y=x2+bx+c,其图像抛物线交x轴于点A(1,0)、B(3,0),交y轴于点C.直线l过 The mathematics test in senior high school entrance examination has the guiding function of leading the classroom teaching, but the whole copy mode (handling problem) of “applying” but not “applicable” leads to the loss of its practical value.Therefore, the study of its “applicable” teaching The significance of the problem.1 The questions presented Questions known quadratic function y = x2 + bx + c, the image parabola to pay the x-axis at the point A (1,0), B (3,0), cross the y-axis at point C. Straight l too