大家知道,开放性试题具有给出条件不确定,求解问题不指明,解答方法不唯一,答案形式多样化等特点,它对培养学生创造性思维有着得天独厚的优势,因而倍受命题者的青睐·近年来开放性试题的题量大大增加,涉及的知识面也更广泛·为了使学生掌握该题型的命题动向,笔者对它的情景设置 As we all know, the open questions have the characteristics of unclear conditions, unspecified solving problems, unique answering methods, and diversified forms of answers. It has a unique advantage in cultivating students’ creative thinking, and is therefore favored by propositioners in recent years. The number of questions for open test questions has been greatly increased, and the knowledge involved is also more extensive. In order to enable students to grasp the propositional trends of the question type, the author set the situation for it.