Xi Jinping pointed out that general secretary of the communist party of China is the history of China's modern history's most epic chapter, "the only adhere to the ideological construction, the theory of strong party, don't forget the beginner's mind to more consciously and more firmly bear the mission to", "to study and implement the party's innovation theory as the pinnacle of thought armed, and learn with the history of the party, the new Chinese history, the history of reform and opening up, the socialist history (hereinafter referred to as the"Four Histories") together ". Therefore, on the afternoon of October 29, 2020, Gong Zhengjun, member of the Party Committee of the College, gave the special party class of "Four Histories" study and education for the Teaching staff Environment Party Branch.

Gong Zhengjun from the "The history of the party is a history of practice in which the leadership of the Communist Party of China has been moving towards maturity", "The history of New China is the practical history of the CPC in promoting the construction of New China" and "The history of reform and opening-up is the practical history of the CPC in promoting the self-improvement and development of the socialist system", "The Communist Party of China is an important political force leading the development of socialism in the world" four aspects, She introduced the content of the "Four Histories" to the party members of the branch, and emphasized that learning the "Four Histories" well can guide the Party members and cadres to understand the extraordinary years our party has gone through, and to realize the difficult course of our Party in the revolution and struggle.

Finally, Gong Zhengjun pointed out that in the special period when the epidemic situation of COVID-19 abroad is still severe and the situation of epidemic prevention in China is getting better, learning the four histories well, drawing rich nourishment from them, and laying a solid foundation for development, can properly cope with the major changes that have not occurred in a century, to achieve Chinese Dream, infuse historical wisdom and add spiritual impetus. As a college teacher, we should do our job well and try to train qualified successors and builders of socialism, especially as a teacher of environmental engineering, we should transfer the concept of sustainable development of green water and Green Mountains to contemporary college students, and strive for environmental protection as our life-long career.

After listening to Comrade Gong Zhengjun's "four history" party class, Party members expressed their views that after the outbreak of the COVID-19, a large number of dedicated and selfless outstanding figures emerged. We should learn their excellent qualities and consciously and improve the party spirit and political consciousness in reality. The history of the CPC, the history of the New China, the history of reform and opening-up, and the history of the development of socialism can strengthen the ideological and operational consciousness of the broad masses of Party members in keeping the original intention and undertaking the mission, and enhance their confidence in realizing the Chinese dream in the Chinese Dream.