What are the contents of the three categories?

The contents of the three noes are:

1, "Wedding Farewell" describes a newlywed couple who are forced to separate on their wedding night. The man left his wife because of the battle, and her wife was reluctant to go, showing deep attachment and helplessness. This poem reflects the endless pain and cruel reality brought by the war through the emotional entanglement of the newlyweds.

Homelessness depicts the tragic situation of a man who lost his family and home and was displaced by himself because of the war. He tried hard to find a way to survive, but he faced endless hardships. Through the experience of men, this poem reveals the devastation of war on the lives of ordinary people and the indifference of society.

3. Farewell the old and welcome the new tells a touching scene of an old man's separation from his son. Although the old man is old and weak, he resolutely decided to join the army for the benefit of the country. On the occasion of parting from his son, he expressed his concern about the fate of his home country and his attachment to his family, showing the responsibility and sacrifice of an ordinary person at the moment of national crisis.

This group of poems takes people's life as the breakthrough point, and vividly shows the profound disaster brought by war and the complexity of human nature through specific life scenes and characters. Du Fu recorded the sufferings and struggles of the people in this historical period with realistic methods, and expressed his condemnation of war and his desire for peace. At the same time, this group of poems also embodies Du Fu's Confucian benevolent thoughts and grand ambitions, as well as his deep concern and sense of responsibility for social reality.

The historical background of Sanbie's creation;

In the second year of Tang Zhide (757), Du Fu risked his life to escape from Chang 'an and arrive in Fengxiang, Shaanxi. Su Zong praised his loyalty and named him the left gleaner. But he angered Mr. Su by going to the emergency room and was almost convicted.

In June of the following year, he was demoted to Huazhou Secretariat to join the army. In the spring of the second year of Gan Yuan's life (759), he went to his former residence in Henan Province to visit his relatives, and wrote two groups of eternal farewell songs: Li Xinan, Tong Guan Li, Li Shihao, Newly Married, Resignation and Parting.

In the autumn of the same year, Du Fu resigned because he was dissatisfied with Li Dui's dictatorship. Since then, it has been smooth sailing. /kloc-in October/February, I arrived in Chengdu to take refuge in Gao Shi and other old friends. This period is the most difficult period in Du Fu's life experience. He experienced the sadness and pain of national destruction and death. His life experience is very rich, and he wrote more than 200 poems.

Because he felt the pain of the war with the people, he can objectively describe the truth of the times in his works, which is of great significance in the history of poetry. In 759 AD, he wrote about Xin 'an Li, Tongguan Li,, Wedding Farewell, Farewell to the Old and Welcome to the New, and Homelessness.