“生态系统的能量流动”是高考的重要考点,多以构建情景建立模型的图解题出现,此类图解题有枝状图、锥体图等多种类型出现,直观地呈现能量流动的过程和特点,可考查同学们的思维能力。图解题的类型多了,大家容易混淆,一出现新的情景就不能理解题意,这是生态系统能量流动的难点。实际上新的图解题都有原型,就是课本的三幅图,只要把课本的图理解了,不管图解题怎样改编都能理解题意。 “Ecosystem energy flow ” is an important test of the college entrance examination, and more to build the scene to create a graphical problem of the model appears, such diagrams are dendritic, pyramidal and other types of appearing, intuitively show energy Flow of the process and characteristics of students can test the thinking ability. There are many types of graphic questions, and everyone is easily confused. As soon as the new scene appears, you can not understand the questions, which is the difficulty of the energy flow in the ecosystem. In fact, the new graphic problem archetype, is the textbook of the three maps, as long as the textbook map understanding, no matter how the graphic problem adaptation can understand the problem.