Analysis:
(1) Strengthen the classical artistic conception of the article, and make the full text poetic; (2) Contrast the strong artistic connotation of the picture and enhance the artistic aesthetic feeling.
Tip:
Poetry is a condensed language. To determine the expressive function of poetry in the text, we must first understand the meaning expressed by poetry, taste the artistic conception contained in it, establish the image described by poetry in our hearts, and then give a brief answer in combination with the content of the text.