Explain the process of Du Fu's ideological transformation from his poems.

★ The process of Du Fu's ideological transformation:

From five to fourteen years in Tianbao, Du Fu was trapped in Chang 'an and was down and out. Frustration in official career and personal hunger and cold made him objectively realize the corruption of the rulers and the sufferings of the people, and made him gradually become a poet who cares about the country and the people. The creation has undergone profound and great changes. Immortal masterpieces such as Military Vehicle Shop, Liangwei Road, Qiandi, Houdi, from Beijing to Fengxian, and famous cautionary sentences such as "The wine and meat in Zhumen stink, and the road freezes to death" have emerged. Du Fu's poems faithfully reflect his times and record his life and thoughts. His life can be divided into four stages: a happy and strong travel period; Trapped in the frustrated stage of seeking officials in Chang' an; Period of political turmoil; Abandoning the official and wandering ... First, reading and roaming (before the age of 35)

The so-called "dissolute Zhao Qi, Qiu Ma is quite sober and crazy".

In Kaiyuan 19 (at the age of 20), he began to roam wuyue and returned to Luoyang five years later. Roaming Zhao Qi again. After meeting Li Bai in Luoyang, they formed a profound friendship, then met Gao Shi and traveled with Liang and Song (now Kaifeng and Shangqiu). Later, Du Li went to Jizhou again, met at the east foot after breaking up, and separated again, so there was no chance to meet again.

Second, trapped in Chang' an period (35 to 44 years old)

During this period, Du Fu took the exam in Chang 'an for the first time and came last. Later, he presented gifts to the emperor and presented them to the nobles. He lived a life of "grabbing the rich door in the morning, catching the fat horse dust in the evening, throwing a cup and baking it cold, hiding sadness everywhere". Finally, I got a small official who led Cao Youwei to join the army (mainly guarding the soldiers' weapons and the keys to the treasury). During this period, he wrote poems such as "Car Shop" and "Two Ways", criticizing current politics and satirizing dignitaries. The book "Singing 500 Words from Beijing to Fengxian" is particularly famous, which indicates that his understanding of the political and social reality of the imperial court has reached a new height after ten years of hard life in Chang 'an.

Third, the period of being trapped as a thief (45 to 48 years old)

When the Anshi Rebellion broke out and Tongguan fell, Du Fu settled in Zhangzhou and went to Suzong alone. He was captured by the Anshi Rebellion and taken to Chang 'an. In the face of chaos in Chang 'an, he heard the news that the loyalist troops were repeatedly defeated, and wrote poems such as Moonlit Night, Spring Hope, Ai Jiangtou and Sad Chen Tao. Later, he fled to Fengxiang to cheat and made a collection. Because of his advice, Shangshu was demoted to prime minister of joining the army. (Fang Shu is a typical intellectual, but unrealistic. He fought against the rebels and adopted the Spring and Autumn Array, which resulted in a crushing defeat. Du Fu began to tidy up Zuo's remains. He said Fang was innocent. He was angry and wanted to find fault. Later, he recorded his experiences in the form of poems and became his immortal works, namely "Three Officials" and "Three Farewells".

Three officials: Shi Haoguan, Xin 'an official and Tongguan official; "Three Farewells" means "Wedding Farewells", "Homelessness" and "Farewell the Old and Welcome the New".

Four, southwest drift period (48 to 58 years old)

With the collapse of Xiangzhou loyalist and the famine of Guanfu, Du Fu abandoned his official and fled with his family, passing through Qin Zhou and Tonggu, and lived a relatively stable life in Chengdu. When he entered the DPRK, the warlord in the middle of Shu rebelled and he went to Zizhou and Langzhou. After Yanwu filmed "Our Times" as a blog in Chengdu, Du Fu voted and Yanwu died. He drifted again, lived in Kuizhou for two years, drifted to Hubei and Hunan, and died on the Xiangjiang River. The works of this period include Heart on the Water Threshold, Delighting in Rain on a Spring Night, Autumn Wind Breaking the Cottage, Sick Orange, Climbing the Building, Book Reading, The Yellow River was recaptured by the imperial army, Showing Wu Lang again, Ascending the Mountain, Qiu Xing, Three Jueju and Sui Yanxing.

Du Fu's poems fully expressed his deep sympathy for the people and exposed the sharp opposition between the exploiters and the exploited in feudal society: "The drunken road in Zhumen froze to death!" This immortal poem has been remembered by the people of China for generations. "Dare to love death when saving, and be afraid when you are lonely!" This is the full expression of Du Fu's incomparable love for the motherland, and it is also the reason why his poems are so popular. Du Fu's patriotic hot pillow is also very rich in his masterpieces such as Spring Hope and Imperial Army Recovering the Banks of the Yellow River. In "Three Officials" and "Three Farewells", he praised the patriotic spirit of the broad masses of people who endured all kinds of pains, and even showed readers his childlike innocence of patriotism and love for the people. Out of love for the motherland and the people, it is bound to have a strong hatred for the extravagant and dissolute face of the ruling class and the crimes that bring disaster to the country and the people. This point has been vividly demonstrated in the immortal masterpieces "Car Shop" and "Two Ways". A great patriot's concern for the country and the people is bound to be expressed in other ways. Some of Du Fu's poems about things and scenery, even those about couples, brothers and friends, are permeated with deep feelings for the motherland and the people. In a word, Du Fu's poems are an artistic record of the decline of the Tang Dynasty. Du Fu bravely, faithfully and profoundly reflected the extremely extensive social reality with the positive spirit of joining the WTO. No matter what kind of sinister situation, he didn't lose heart. In the long history of China literature, the cognitive function, reference function, educational function and aesthetic function of Du Fu's poems are unattainable.