我在阐述植物无性生殖的过程中,安排了运用嫁接的实践活动,充分说明植物具有无性生殖的能力。其实嫁接的技术由来已久,特别在广大农村早已普遍应用。例如,苹果梨、山楂等都是嫁接的产物。在学习这一知识点的过程中,通过课前和同学们的交流了解到学生中根本没有人能说出山楂、苹果梨到底是怎样获 I elaborated on the process of asexual reproduction of plants and arranged grafting practices to fully explain the ability of plants to have asexual reproduction. In fact, grafting technology has a long history, especially in the vast rural areas already widely used. For example, apple pears, hawthorn, etc. are all products of grafting. In the process of learning this point of knowledge, through the pre-class and exchange of classmates learned that no one can say hawthorn students, apple pear in the end is how to get