很多同学总是犯同一个错误,其原因在于没有经常复习这些易错题,没有很好地总结和归纳,以致没能彻底解决这些知识盲区.本期特针对集合与简易逻辑、概率与统计、立体几何、解析几何这四大块知识,从同学们平时的练习题、2007年高考题和模拟题中总结归纳出一些易错知识点,希望能对同学们有所帮助. Many students always make the same mistake. The reason is that these error-prone questions are not reviewed frequently and are not well summarized and summed up. As a result, these knowledge gaps have not been completely resolved. This issue focuses on set and simple logic, probability and statistics, The four blocks of three-dimensional geometry and analytical geometry are summarized from the practical exercises of the students, the college entrance examination questions in 2007, and the simulated questions. Some error-prone knowledge points are summarized and hopefully helpful to the students.