非金属元素及其重要化合物的相关知识一直是高考命题的热点和难点之一,需要拓展的内容较多,学生在学习过程中有时会受到思维定势的影响,容易在理解上进入误区,现总结剖析如下。 The related knowledge of non-metallic elements and their important compounds has always been one of the hot topics and difficult points of college entrance examination propositions. There are many contents that need to be developed. Students sometimes suffer from the influence of mindset in the learning process, and they are easily misunderstood in their understanding. The summary analysis is as follows.