tokens: The precondition of doing research by professors Nowadays, many professors conduct research while teaching in colleges or universities . Although research could bring funding and latest achievements in the field, the research takes up too much teaching time . As far as I am concerned, professors should spend more time on preparing courses than research . To begin with, it is vital that professors should assist students to acquire knowledge . The professors’ duty is to nurture students, and prepare excellent courses . If professors spend a lot of time on research, he will cut the time on preparing courses is reduced, which may decrease the quality of classes . The reason why people enter a university is that they want to learn cutting-edged technologies . In this way, professors should provide well-preparation courses to convey the state-of-art knowledge for college and university students . Therefore, professors should pay more attention on how to teach students rather than conduct research . On the other hand, if professors are busy in doing research, ignoring preparing appropriate courses for students, it would ruin the reputation of universities . Students are unsatisfied with the unprepared course, and the enrollment of universities may decline . Many students would not choose these kinds of universities to study . In this way, hardly can professors find assistants to help with projects . It is adverse to the whole academic field . Accordingly, spending more time to nurture excellent students is more consequential to professors, rather than research . Nevertheless, professors could teach students through research and projects . Some students enjoy taking part in some research . Through to use the equipment and invent their own work, they may get more experience in the process of research . For instance, electronic students always invent new machines such as robots, MP3 and remote control car . They can manage the electric theory in practical skills . And some students will be rewarded by investing new inventions . However, only under specific circumstance, when students master all of the systematic knowledge, can they accomplish research . This is requires professors provide high quality courses . In other word, professor should concern about preparing class . Consequently, conducting research is helpful for professors and students to some extent . However, the precondition of doing research is growing students’ solid theory fundamental . Only by developing students, can we have a better academic field . Professors could combine doing research and preparing good courses in a dynamic way .