论文部分内容阅读
近年各地中考试卷中对本章内容的考查,最突出的特点是强调基础,重视实用.一方面重点考查对圆的基本概念、基本性质的理解及推论的运用,特别是垂径定理及其推论、圆周角定理及其推论的运用,考查的题型大多以填空题、选择题的形式出现.另一方面重点考查直线与圆的三种位置关系、切线的定理、切线的性质,考查的题型主要是以计算题和证明题的形式出现.现选择部分题型进行分析.
In recent years, the test papers in various areas throughout the examination of the contents of this chapter, the most prominent feature is the emphasis on the foundation, emphasis on practical.On the one hand, focus on examining the basic concepts of the circle, the basic nature of the understanding and use of inference, especially the theorem and its corollary, Circular angle theorem and its corollary to use, most of the test questions to fill in the blank questions, multiple choice questions on the other hand, the focus of examination of the relationship between the straight line and the circle, the tangent of the theorem, the nature of the tangent, exam questions Mainly in the form of calculation questions and proof questions appear now choose some questions for analysis.