As a widely used figure of speech, trope is important to enrich and develop the syntactic form.It can be used as different grammatical formatives with different function.

• 比喻作为现代汉语最为常用的修辞手法之一，对于语法形式的丰富和发展有着积极的意义，可以充当不同的句法成分，具有不同的作用。