准备初一《生物》第一册“绿叶在光下制造淀粉”这个分组实验,许多教师都感到头痛,主要是由于地域区限,课本里介绍的天竺葵在我们这里很少有。针对这种情况,于是我们生物组的几位教师因地制宜、就地取材,有意选取替代植物。分别试用加拿大篷叶、红薯叶、小白菜叶等这些本地区较 In preparation for the first experiment of the first edition of “Biology”, “Green Leaves Produce Starch in the Light,” many teachers feel headaches, mainly due to geographical limitations. The geraniums introduced in the textbooks are rarely found here. In response to this situation, several teachers in our biology team adapted measures to local conditions and used local materials to select alternative plants. Try to compare Canada’s tarpaulin, sweet potato leaves, and cabbage leaves, etc.