The paper on the theory that Tang poetry emphasizes interest and Song poetry emphasizes reason and interest can start with some relevant history of Tang poetry and Song poetry, that is to say, it can start with the excellent traditional culture of China, and then extend from the excellent traditional culture of China to ancient poetry.

Then, in ancient poetry, we can talk about two dynasties, namely, the Tang Dynasty and the Song Dynasty, and then these two dynasties can be said to be two stages of the prevalence of poetry, and then these two stages can be extended to Tang poetry and Song poetry, and then introduce their advantages, that is, their importance in their respective times.

Then you can present arguments and arguments in your paper. So the beginning can be written like this, that is, the beginning of the paper about Tang poetry and Song poetry, which can be written like this.