The motherland and people will never forget a person who has made silent contributions to the scientific research and teaching of the motherland. In 2003, Zhang was commended by the Ministry of Education for his outstanding contributions in scientific research and teaching, and won the first national-level teaching teacher award of the Ministry of Education. There are only 4 people in Shandong province, and only 1 person in Qingdao won this honor. "Scientific research and teaching go hand in hand. Grasp both hands and be hard with both hands "is Zhang's unswerving guiding principle. Zhang has a clever metaphor for the relationship between scientific research and teaching. He said: "Teaching is like an island, and scientific research is a bridge connecting the islands. Only when the island and the bridge are truly connected can we build a perfect teaching system and truly master a subject. " Learning to be excellent is to be an official and to be a teacher. Zhang set an example for the students. He has always been conscientious and meticulous about scientific research. 1994 Before the sudden myocardial infarction, he always got up at 6 o'clock in the morning and went to bed at 1 at night. Although the doctor warned him not to be overworked many times, he still got up early and went to bed late, and insisted on doing experiments with students in the laboratory. For 46 years, he has never left the front line of teaching under any circumstances. From physical chemistry, structural chemistry, quantum chemistry, colloid chemistry to marine chemistry and seawater physical chemistry, he devoted himself to teaching students every basic course. Undergraduate students, master students, doctoral students and postdoctoral students, regardless of their level, will devote all their resources to teaching, and then compile teaching materials such as marine physical chemistry, marine chemistry (recommended by the Ministry of Education) and marine chemistry for undergraduates. His course Marine Chemistry is a famous course of the Ministry of Education. Until now, he has insisted on providing it to undergraduates. Although some lectures have been given for decades, he still has to read, ponder and ponder the lecture notes the night before each class, and scrutinize them again the next morning to prevent mistakes. New academic achievements emerge one after another, and scientific development changes with each passing day. In order to enable students to lay a solid foundation, understand, track and grasp the international frontier trends in time, he has to read a large number of new documents every time he prepares a lesson, so even in the same course, his teaching plans and lectures are often updated once every few decades. As a glorious people's teacher, he attaches great importance to the image of being a teacher. No matter in winter or summer, he will wear a shirt and tie in class and stand and talk happily for hours. In recent years, he has been in poor health. Everyone advised him to relax, but he is more involved. Dragging his weak body, he always leaves his home on Fushan Road early, then stands in class for a few hours, and then slowly walks home for half an hour after class. "Teacher Zhang, sit down and talk." Faced with concern and worry, Zhang is "stubborn": teachers must never sit and give lectures. That's what my teacher taught me when I was in Peking University. I will never sit down to give a lecture unless I faint. "Ungrateful" Zhang still wears a suit and tie as in the past, standing for the last few hours, never taking a sip of water. The students are happy to learn from Zhang, but at the same time, they are a little worried. Because Zhang is too strict. To do the experiment, he asked that the paper experiment should be repeated for at least 3 to 6 months before the data can be officially published; The measured data must be repeated many times before it can be used; Even using 6~8 points in foreign literature to draw an experimental curve requires at least 2~3 times more data than foreign literature. For all important experimental findings, he asked two or more people to conduct repeated experiments and demonstrations. Zhang's requirements are so strict that some students will inevitably complain. Zhang Yongyuan will not lower the standards and requirements. Zhang said: "Teaching is lax and teachers are lazy. As a teacher, while setting an example, we must never lower our requirements for students. High standards and strict requirements will make them all talents in the future. This harshness is true love. " For Zhang's "awesome", some students once "remembered him", but later almost every student thanked him from the bottom of his heart. Today, many students still visit him, write to him or call him at every possible time. Zhang has trained a group of talents for the field of marine chemistry in China. At present, major academic leaders in the field of marine chemistry at home and abroad, such as Gao Congyong, academician of China Academy of Engineering, Yu Zhigang, vice president of China Ocean University, vice mayor of Qingdao, and Sun and Cai, who have become tenured professors in the United States, are all his students. Seeing a group of students grow up, Zhang Xinwei smiled and spoke his mind: "I will never stop pursuing. I want to get more scientific research results, take every class well, and train more talents for the motherland. "