近年来,高考题在考查圆锥曲线方面常以探索性问题呈现,而不采用(直白)证明的形式.探索性问题是一种开放性问题,是指命题中缺少一定的条件或无明确的结论,需要经过猜测、归纳并加以证明的题型,它是一个使学生经历发现问题、 In recent years, the entrance exam questions often appear as exploratory questions in examining conic curves, rather than in the form of (straightforward) proof.Exploratory questions are open questions, which refer to the lack of certain conditions or no explicit Conclusion, subject to guess, summarize and prove the type of question, it is a problem that makes students experience the discovery,