讲一篇课文,对于作者简要地作一些介绍,讲一些有关这篇作品写作的时代背景,是完全必要的;但不宜讲得过多,甚至影响了课文的讲读。郑老师在指导学生预习时,曾印发一个辅助材料,有关王充及《论衡》大约已见于材料中,所以课中对于作家及写作背景等,完全一句未讲,这样既可省去课堂讲述 Speaking a text, it is absolutely necessary for the author to give some brief introductions and to talk about the background of the writing of this work. However, it is not appropriate to speak too much and even affect the reading of the text. When Zheng taught the students to prepare for the preview, they had issued a supporting material. About Wang Chong and “Lunheng” were already found in the material. Therefore, the class did not speak out about the writer and the background of the writing, so that the lecture could be omitted.