When entering the school, Lv Yaoru taught calculus to students of mathematics department (teaching English at that time) and physics to students of physics department. Soon, Professor Yuan Fuli, director of the Department of Geology, told him that geological talents are in short supply and the country is in urgent need. You don't want to change departments. At that time, there were several other students who wanted to transfer to another department. After a period of study, 12 students learned that there were hydrogeology and engineering geology directions, so they wanted to develop in this direction to comfort their desire to study science and engineering. Professor Chen Liangsheng from the Department of Civil Engineering of Tsinghua University often comes to the Department of Geology. He is from Fujian, and Lv Yaoru also asked him for advice, which made him further realize the importance of geological work in civil and water conservancy projects. I also took courses such as Mechanical Drawing offered by department of mechanical engineering, Mechanics of Materials and Building Materials offered by Professor Zhang Wei.
Lv Yaoru studied general geology with Professor Feng Jinglan in Tsinghua University, petrology with Professor Chi Jishang, mineralogy with Professor Tu Guangchi, paleontology with Professor Yang Zunyi and geological history with Professor Zhang Xixie. The lectures of these famous professors laid a solid foundation for his life's geological work. At that time, the academic spirit of these famous professors, old, middle and young, played a role of demonstration and guidance in his mind. Studying in Tsinghua depends entirely on state grants. In addition to meals, there are 7,000 yuan (equivalent to 70 cents after the currency reform) of pocket expenses, including charity, haircut, buying toothpaste and soap, watching movies and sending letters. At that time, a foreign letter also required 800 yuan (that is, 80 cents later). Although he is financially strapped, he feels very comfortable mentally. Both physically and mentally, he felt the motto of Tsinghua, a famous school, which is self-reliant, virtuous and load-bearing, as well as the influence of learning, rigor, friendliness and positive style of study. At that time, I also had a burden in my heart, because I gave up my job and came for further study. This "individualism" still has to be constantly self-examined. In Tsinghua, his school and classmates still trusted him, so he was sent to take charge of the propaganda work of the Summer Palace as the representative of the mayor of Beijing. 195 1 in the summer of, he went to work in a big construction site in Beijing to help the construction company rectify the construction site. Most of the rewards he got were donated to the War to Resist US Aggression and Aid Korea, leaving only a few dollars to buy hiking shoes for his field trip.
Community activities in Tsinghua University are developing well. Lv Yaoru joined a brass band when she was in Huaying Middle School and studied clarinet with an American teacher. So he joined the Tsinghua University brass band after a face-to-face examination by a music teacher in Tsinghua University, and the band played a very inspiring role during the festival. He also often goes to some music lectures. At that time, he remembered Beethoven's famous saying: "Music should inspire the human spirit." Later, he and students from physics departments and other departments formed the Chinese Folk Music Orchestra. He acted as the conductor. 1952 during the spring festival, they performed three programs, including coachman dance, which were warmly welcomed by the students.
These two years in Tsinghua University have deeply influenced Lv Yaoru. Compared with Fuzhou, which was relatively closed at that time, Lv Yaoru had a good opportunity to broaden his horizons. In Tsinghua, I often listen to some famous people give lectures in our school, which increases my knowledge in politics, economy and society. This is really helpful for me to better understand nature and better contribute to science and technology.