电冰箱、洗衣机都是不连续工作的家用电器.平时不注重观察,不关注与生活密切相关的小实验.(“测家用电冰箱的日耗电量”是人教版初中第二册、第九章书后的小实验)不联系生活,解答这类实际问题时就会感到棘手.近年来中考试题中屡次出现,下面就题目进行分析. Refrigerators and washing machines are not continuous work household appliances. Usually do not pay attention to observation, do not pay close attention to the small experiments closely related to life. ( “Measure the daily power consumption of household refrigerators ” is the second edition of the People’s Education Edition The booklet and the small experiment after the ninth chapter of the book) will not be linked to life and will be difficult to answer when answering such practical questions. In recent years, mid-term exam questions have appeared several times. The following questions are analyzed.