一个题干,通过条件转换或思维迁移,形成多个问题,从不同的侧面考查学生的知识与能力,这就是一题多变的探究型问题综合度高,立意深,对学生的能力要求高,有助于学生的广阔性、深刻性、独立性和敏捷性的发展,使学生形成科探究能力. A problem stems from the conditions of conversion or thinking of migration, the formation of multiple problems, from different aspects of the students’ knowledge and ability, which is a problem of changeable inquiry-based problem of high comprehensive, deep-seated, demanding on the ability of students , Contribute to the development of students’ broadness, profoundness, independence and agility, so as to enable students to form scientific inquiry ability.