序言数列知识是考查学生转化与化归、分类讨论、推理论证及探索问题能力的重要题源,容易命制背景新颖的试题,因而在高考中占有重要的地位.高考对数列部分的考查约占高考总分的10%左右,通常采取“一大一小”的模式.客观题中主要考查数列的概念、等差数列与等比数列的基本公式和性质,或者与合情推理相关联,以中档题与容易题为主.主观题则以中档题与难题为主出现,通常与函数、不等式、解析几何等知识进 Preface series knowledge is an important source for examining students’ ability of transformation and transformation, classification discussion, theoretical reasoning, and problem exploration. It is easy to produce exam questions with novel backgrounds, and thus occupies an important position in the college entrance examination. The examination of the sequence of the college entrance examination accounts for approximately About 10% of the total score of the college entrance examination is usually taken as a pattern of “big one, one small, one small”. The objective questions mainly examine the concept of series, the basic equations and properties of arithmetic progressions and geometric progressions, or are related to reasonable reasoning. The main topics are mid-range questions and easy questions. The subjective questions are mainly presented by mid-range questions and puzzles, usually with knowledge of functions, inequalities, analytical geometry, etc.