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一、试题分析201 3年课标卷数学理科20(文科21)题与近几年的高考题类似,重点考查圆及其几何性质、椭圆的定义及其几何性质以及直线与曲线的位置关系,突出圆的几何性质应用。尽管题目整体难度不是很大,但对学生利用定义求方程、结合圆的几何性质解决问题及数形结合等能力要求较高,考生得分仍然不理想,依然是学生突破高分的一个“瓶颈”。二、学生答题情况与问题分析1.基本概念不过关,定义应用意识不强考生a第(Ⅰ)问的解答:
First, the test analysis 201 3 curricula mathematics science subjects 20 (liberal arts 21) questions and the recent years of the college entrance examination questions similar to focus on the circle and its geometric nature, the definition of elliptical and its geometric properties and the relationship between the line and the curve, Highlight the geometric properties of the circle. Although the overall difficulty of the subject is not very large, the ability of students to solve the problem by using the definition of the equation, the combination of the geometric properties of the circle, and the combination of the number and shape is high, and the score of the candidate is still not satisfactory, which is still a bottleneck for the student to break the high score ". Second, the students answer questions and analysis of the problem 1 basic concepts, however, the definition of the application of consciousness is not strong candidates a (Ⅰ) Q: