几何题的证明有两大难点:一是分析证题思路,(包括添加辅助线);二是正确书写证题的过程。前者往往因添加不上适当的辅助线或思路不清,造成全题失分。后者多因证明过程中逻辑混乱,或缺少条件而造成严重失分。较复杂的几何题证明,通过分析即使证题思路清晰了,往往 Proof of geometry problems have two major difficulties: First, the analysis of the problem ideas (including the addition of auxiliary lines); the second is the correct process of writing the title. The former is often due to add the appropriate auxiliary line or unclear ideas, resulting in the whole point of missing points. The latter are mostly caused by serious confusion in the process of proving the logic or lack of conditions. More complex geometry proves that, through analysis, even if the idea of ​​the problem is clear, often