极限是高中数学的重点内容之一,在高考中多以选择、填空以及大题中的小题形式出现,它往往与数列、方程、组合、不等式、对数、解几、平几、函数等知识交汇,具有涉及面广、综合性强、解法灵活的特点.下面结合某些高考题予以说明,供复习参考.类型Ⅰ———与数列知识交汇【例1】若 The limit is one of the key contents of high school mathematics. In the college entrance examination, there are many choices, fill in the blanks, and small questions in the big questions. It is often associated with series, equations, combinations, inequalities, logarithms, solutions, flats, functions, etc. The intersection of knowledge has the characteristics of wide coverage, strong comprehensiveness, and flexible solution. Below is a description of some college entrance exam questions for review purposes. Type I— Convergence with sequence knowledge [Example 1]