近几年高考化学试题明显加强了对实验内容的考查,特别是对实验基础知识的掌握以及综合运用知识解决实际问题的能力的考查。因此,对于基础知识的掌握显得尤为重要。“检查装置的气密性”在历年高考中的重现率高达60%以上,极易失分,其重点在于考查经变形、改进后的或组合而成的实 In recent years, the college entrance examination chemistry test has obviously strengthened the examination of experimental content, especially the mastery of experimental basic knowledge and the ability to comprehensively apply knowledge to solve practical problems. Therefore, the mastery of basic knowledge is particularly important. “The airtightness of the inspection device” has a recurrence rate of over 60% in the college entrance examinations over the years, and it is very easy to lose points. The focus is on examining the deformed, improved or combined reality.