In fact, whether it is exam-oriented education or English extracurricular tutoring, I suggest not to talk about grammar in the trial lecture, because the general training institutions look for teachers to examine their professional knowledge and ability and the effect of students' lectures. So talk about how I think students learn English grammar, words and other knowledge by telling English stories. Let students practice oral English together, enhance their interest and digest their memories on the spot.

Therefore, I suggest 15 minutes to try out the lecture, and let everyone learn grammar, words, spoken English and so on with a classic foreign story. In short, practice listening, speaking, reading and writing with stories.