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高中地理有些内容,学生容易混淆不清,教师在教学中应注意讲清它们之间的差异,使同学有意识地强化分辨地理事物之间的能力,达到牢固掌握的目的。我认为有以下12个问题应引起同学注意,从相似中找出差别。1.星云和彗星。均是天体类型,两者均具有云雾状外貌,但星云由气体和尘埃物组成,彗星则由冰物质组成。2.太阳常数与太阳辐射强度。均表示接受太阳
There are some contents of high school geography, students are confusing and unclear, teachers should pay attention to clarify the differences between them in the teaching, so that students consciously strengthen the ability to distinguish between geographical things, to achieve a firm grasp of the purpose. I think the following 12 questions should attract the attention of the classmates and find differences from similarities. 1. Nebula and comets. Both are celestial types, both of which have a cloudy appearance, but the nebula consists of gas and dust, while the comet consists of ice material. 2. Sun constant and solar radiation intensity. All accept the sun