我参加了1994年高考化学试卷的评卷工作,在评卷时发现了学生在知识和能力方面存在的一些问题,现写出来,供高三任课教师参考。 1994年化学卷中的第35题,以乙烯为初始反应物,经过各步反应可制得正丁醇。并且有如下的信息题示,两个醛分子在一定条件下可以自身加成然后缩合: I took part in the assessment of the 1994 college entrance examination chemistry paper. During the assessment, I discovered some problems in my students’ knowledge and abilities. I have written them out for reference by senior teachers. In item 35 of the 1994 chemical volume, ethylene was used as the initial reactant and n-butanol was obtained after each step of the reaction. And there is the following information that the two aldehyde molecules can add themselves under certain conditions and then condense: