为了较好地选拨人才 ,自 90年代以来 ,在高考化学试题中出现了一种新的题型 ,即信息给予题 ,这类题目的特点是所涉及的知识内容是学生平时在书本上没有见过 ,且老师在课堂上没有讲述 ,但老师是清楚的 ,更为甚者 ,有些试题涉及的内容是近几年 ,甚至是刚刚才几个月前出现的新科技 In order to select talents better, since the 1990s, a new type of questions has emerged in the chemistry test papers for college entrance examinations, that is, information-giving questions. The characteristics of such questions are that the knowledge involved is that students usually do not have books in the textbooks. I have seen, and the teacher did not tell in the class, but the teacher is clear, and even worse, some of the questions involved are in recent years, even new technologies that have just emerged just a few months ago.