等比数列的概念与性质、等比数列求和问题一直是高考的重要考点,可是,由于考生对概念和性质理解不透彻、考虑不全面、忽略题中的隐含条件等原因,常常出现“会而不对,对而不全”令人痛心的现象.制约学生数学成绩的提高,本文结合笔者多年的教学实践,精选学生在考试中的几个易错问 The conception and nature of geometric progression, the problem of summation of geometric progression, has always been an important test for college entrance examination. However, due to the inaccurate understanding of the concept and nature of candidates, incomplete consideration and ignorance of implied conditions, Will be right, not right, "a distressing phenomenon restricting the improvement of student achievement in mathematics, this article combines my years of teaching practice, the selection of a few students in the examination of a few easy to wrong