“硫和硫的化合物”紧接在“物质结构、元素周期律”之后,总体上讲,学习时要以元素周期律知识为指导,通过自学、分析、对比、探究、理解记忆,达到既减轻负担,又提高效率的目的,各节的具体处理建议如下。 “Sulfur and sulfur compounds” are immediately followed by “Physical structure, elemental periodicity,” and, as a whole, learning should be guided by the knowledge of the elemental periodicity and self-study, analysis, comparison, inquiry, and understanding of memory to achieve both reductions. For the purpose of burdening and improving efficiency, the specific treatment of each section is proposed as follows.