一、教学前反思因为这节课要探究的是一氧化碳的性质和用途,一氧化碳有毒,无法进行演示实验,那么怎样上好这节课呢?通过反思,我设计的教学思路是:因为一氧化碳和二氧化碳的组成元素相同,但一氧化碳分子比二氧化碳分子少一个氧原子,它们的分子构成不同,这就决定了它们的性质不同,物质的性质决定物质的用途,所以它们 First, pre-teaching reflections Because this lesson is to explore the nature and purpose of carbon monoxide, carbon monoxide poisoning, can not be demonstrated experiment, then how good this lesson? By reflection, I designed the teaching idea is: Because of carbon monoxide and carbon dioxide Of the same composition, but the carbon monoxide molecules less than the carbon dioxide oxygen atoms, their different molecular composition, which determines their different properties, the nature of the material determines the use of substances, so they