The leaves of a pine tree look like a long green needle.

The basic structure of a metaphorical sentence is divided into three parts: the ontology (the thing being compared), the metonymy (the word that expresses the metaphorical relationship), and the simile (the thing being compared).

In this sentence, the ontology is the leaves of a pine tree, the simile is as if, and the metaphor is a long needle.

The function of simile:

1. Simile can make something not well imagined concrete, borrow other similar things to illustrate, make people more clear and understandable.

2, simile can make the generalized things visualization, give people a deep impression.

3, make things image, vivid, highlight the characteristics, rendering the atmosphere, the side of the foil.

4, play the role of modifying the article.

5, metaphorical reasoning is easy to understand, so that people can easily accept.