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试题是命题人与学生对话的工具、交流的中介。《全日制义务教育化学课程标准(实验稿)》指出:“义务教育阶段的化学课程应该体现启蒙性、基础性。一方面提供给学生未来发展所需要的最基础的化学知识和技能,培养学生运用化学知识和科学方法分析和解决简单问题的能力;另一方面使学生从化学的角度逐步认识自然与环境的关系,分析有关的社会现象。”
Questions are the tools for dialogue between propositions and students, and the medium for communication. The “Full-time Compulsory Education Chemistry Curriculum Standard (Experimental Draft)” states that: “The compulsory chemistry curriculum should reflect enlightenment and foundation. On the one hand, it provides students with the most basic chemical knowledge and skills needed for future development. Students use chemical knowledge and scientific methods to analyze and solve simple problems; on the other hand, students are gradually understanding the relationship between nature and the environment from the chemical point of view and analyzing related social phenomena.”