Trial lecture, that is, in the absence of students, within the specified time. In a specific situation, the examiner's face-to-face conversation and observation of candidates is the main means to test whether the examiner who applies for the teacher has professional ethics, basic quality, career development potential and teaching practice ability from the outside to the inside. Try to focus on professional knowledge, reaction ability, basic teaching skills and so on. Trial lecture is the best way to examine teachers' professional ability, because teachers should not only have professional knowledge of pedagogy, psychology and this subject, but also show these knowledge through lectures, so that judges can feel that your professional knowledge is solid, and you can use or embody the principle knowledge of pedagogy and psychology in teaching because of the differences between students and textbooks. At the same time, there will be some unexpected events in class or some small mistakes made due to nervousness during the trial. How to deal with or remedy it is an excellent opportunity to examine candidates' reaction ability. The overall performance of candidates in this link should reflect their basic teaching ability and their own comprehensive quality.