Teaching method belongs to the traditional training mode, which means that trainers systematically impart knowledge to trainees through language expression, hoping that these trainees can remember the important concepts and specific knowledge. Trainers are required to have rich knowledge and experience; Teaching should be systematic, clear, focused and difficult; The teaching language is clear, vivid and accurate; Necessary multimedia equipment should be equipped as far as possible to enhance the training effect; After the lecture, the trainer should be given appropriate time to communicate with the students, and the feedback of the students on the lecture content should be obtained by asking and answering questions.