[情境描述]在一节“比热”课上,我和学生一起得出了比热的概念后,我例举了水的比热是4.2×103焦(/千克·℃),随后提问:“绍兴的纬度与千岛湖差不多,为什么夏天在绍兴我们觉得炎热难耐,而千岛湖却较凉爽呢?”大家讨论后一致得出:“因为千岛湖水多,水的比热比砂石、泥土的比热大,吸收相同的热量后,温度升高较低,所以人会感到凉爽。” [Situation Description] In a “Specific Heat” class, after I and the students came up with the concept of specific heat, I cited the specific heat of water as 4.2×103 joules (/kg·°C), and then asked: “Shaoxing is similar to Qiandao Lake in terms of latitude. Why do we feel hot in the summer in Shaoxing, and Qiandao Lake is cool?” After discussion, everyone agreed: “Because the Qiandao Lake is full of water, the specific heat of the water is higher than that of sand and mud. The specific heat is large, and after the same heat is absorbed, the temperature rises lower, so people feel cool."