“是否存在”型问题是指在给定条件下探索尚不明确的结论,或由给出的结论探索满足该结论的条件是否存在等综合问题.笔者经过研究近年来各地的高考试题,发现涉及函数、数列、解析几何、立体几何、导数、向量等方面知识的“是否存在”型问题已成为热点,其综合性强,是全面考查学生创新精神和探 “Is there a ” type of question refers to the exploration of ambiguous conclusions under given conditions, or from the given conclusions to explore the conditions to meet the conclusion of the existence of such comprehensive questions.The author after studying the entrance exam questions in recent years, It has become a hot spot to find out whether there is a problem of “existence” in knowledge of functions, sequences, analytic geometry, solid geometry, derivatives, vectors and so on. Its comprehensiveness is a comprehensive examination of students' innovative spirit and exploration