笔者在上苏人版八年级下册第13课“做有教养的现代人”公开课前,为了突出重点——有教养、懂礼仪,预设了“握手”情境。请班上8个合作小组,每两组分别就拜访同学、求职、异性接触、多人交往四个情境表演握手,再根据视频《握手的基本礼仪介绍》中专家讲解,由学生来评价优劣。预设时,考虑到异性握手环节学生可能会尴尬,所以特意安排班长和课代表所在组表演。不料,课上其他组纷纷登台亮相,而事先安排异性握手的两组始终弃权、高悬,一场本来自鸣得意的预设留下了缺憾。本课中异性握手环节的失败,暴露了课堂表演预设存在诸多不足:一、追求表面热闹,缺乏深层动机 The author in the Soviet version of the eighth grade under the 13th chapter “well-educated modern people ” before the open class, in order to highlight the key - educated, etiquette, default “handshake ” situation. Please eight classes on the team, each two groups were called on the students, job search, heterosexual contact, multi-contact four handshake performance context, and then according to the video “basic handshake introduction” expert explained by the students to evaluate the pros and cons . By default, taking into account the opposite sex handshake students may be embarrassed, so specially arranged squad leader and class representative group performance. Unexpectedly, the other groups in the class have appeared on stage, and the two groups that had prior arrangements for heterosexual handshake always abstained, suspended, and a plausible preset left a gap. The failure of the handshake of the opposite sex in this lesson exposed many deficiencies in the classroom performance presupposition: First, the pursuit of the surface of lively, the lack of deep motivation