科学探究是学生积极主动获取知识,认识和解决化学问题,养成严谨的科学态度,学会科学研究方法,逐步培养终身学习意识和能力的重要途径。近年来,为了突出对学生科学探究能力的考查,各地中考试题中探究性试题的比例在逐年加大,由于探究题的内容可宽可窄、层次可深可浅、触角可长可短,因而题目的形式变化大,问题错综复杂,综合性强,学生答题时失分率较高,区分度较大,所以它常处于“压轴题”的地位,充当着“把关题”的角色。这类极富 Scientific inquiry is an important way for students to actively acquire knowledge, understand and solve chemical problems, develop rigorous scientific attitudes, learn scientific research methods, and gradually cultivate life-long learning awareness and ability. In recent years, in order to highlight the examination of students’ scientific inquiry ability, the proportion of inquisitive examination questions in the local examination questions has been increasing year by year. Since the content of inquiry questions can be wide or narrow, the levels can be shallow or deep, and the antennae can be long or short. The form of the topic varies greatly, the problem is complicated, and the comprehensiveness is strong. The student has a higher score and a higher degree of differentiation when answering the question. Therefore, it is often in the position of the “end-point title” and serves as the role of “the title question”. . This kind of rich