很多自然活动具有一定的季节性，所以小学自然教学大纲指出：“教学时可以根据当地的自然情况调整教学内容的顺序。”但这种调整要安排在某一册教材中去进行。《种大蒜卜课安排在第二册第一课，作为春季的教学内容，在我国大部分地区是不合适的。大蒜是多年生草本植物，地下望? Many nature activities have a certain seasonal nature, so the Syllabus for Primary Schools pointed out: “The order of teaching contents can be adjusted according to the local natural conditions while teaching.” However, such adjustments should be arranged in a certain textbook. "Garlic Garlic Courses are arranged in the first lesson of Volume II, as a spring teaching content, inappropriate in most parts of our country. Garlic is a perennial herb, underground looking?