【考点聚焦】考点1:集合中元素的基本特征,集合的表示法,元素与集合的关系,集合与集合之间的包含关系,集合的交、并、补运算。考点2:绝对值不等式、一元二次不等式及分式不等式的解法。考点3:简单命题与复合命题的相关概念,真假命题的判断,四种命题及其关系,反证法的证题思想。 [Test Focus] Test Point 1: The basic characteristics of elements in a collection, the representation of collections, the relationship between elements and collections, the inclusion relationship between collections and collections, and the intersection, union, and complement operations of collections. Test Point 2: Solutions of absolute value inequalities, quadratic inequalities and fractional inequalities. Test Point 3: The related concepts of simple propositions and compound propositions, judgments of true and false propositions, four kinds of propositions and their relations, and the idea of ​​testimony of anti-evidence methods.