What is written around "Birch Tree" in each natural paragraph in Volume 2 of Grade Four Chinese?

The poem "White Birch Tree" in the second volume of the fourth grade Chinese is a short poem by Ye Saining, which can be read in sections. The first section describes the location of birch, the second section describes birch in snow, the third section describes birch in silence, and the fourth section describes birch in sunrise. This little poem describes the image of white birch to us through various descriptive techniques, and every sentence rhymes and catchs.