通过多年的调查和分析,发现学生解错题往往是因为知识的不足或者解题技能的欠缺。但是探究其本质,则会发现这其实是解题的过程中发生思维障碍问题所导致的,具体表现为信息提取失真和思维定向失误等,对高考生物复习中阶梯思维进行了分析,并给出了一些预防和补救思维障碍的有效措施。 Through years of investigation and analysis, it is found that students often solve problems because of lack of knowledge or problem-solving skills. However, to explore its essence, we can find that this is actually caused by the problem of thinking obstacle during the process of problem solving. The concrete manifestation is the distortion of information extraction and the mistake of thought orientation, and the analysis of ladder thinking in biology review of college entrance examination, Some effective measures to prevent and remedy thinking disorders.