田鼠是农业生产的一大害。近几年,人们用毒杀的方法消灭田鼠,可是田鼠总不见减少。为了寻找有效地控制田鼠数量的办法,我们组的同学们对田鼠进行了一年零两个月的观察、记录,了解了田鼠一年四季活动的形式、范围、内容。根据其特有的生活习性,相 Microtus is a major detriment of agricultural production. In recent years, people killed the voles with a poisonous kill, but voles did not see any decrease. In order to find ways to effectively control the number of field mice, our group of students observed and recorded the field mice for one year and two months and learned the form, scope and content of field activities throughout the year. According to their unique habits, phases