如何从天然气的主要成分出发,通过实验,进一步认识燃料的燃烧和应用,进而了解化石燃料对人类所起的重要作用,应该成为教师执教此课的一个重要视点。在教学此课时,在理念中,不仅仅是理论版,也是“情境版”;在课堂中,不仅仅是单项灌输,也是自主自悟;在探究中,不仅仅是聚焦课堂,也是课外延伸,必将打造一个厚重、多元、精彩的化学课堂。 How to proceed from the main components of natural gas and further understand the combustion and application of fuel through experiments to understand the important role played by fossil fuels to mankind should become an important viewpoint for teachers to teach this lesson. In teaching this lesson, in the concept, not only the theoretical version, but also the “situation version”; in the classroom, not only instilling a single, but also self-understanding; in the study, not just focus on the classroom, but also extra-curricular Extension, will create a heavy, diverse, exciting chemistry class.