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    【题目】气温是指大气的温度，午热晨凉，冬寒夏暑，气温在不断变化。据此完成下列问题。

    【1】上课铃响了，几个同学满头大汗跑进教室，老师说：通常这个时候是一天中气温最高的时候，要注意防暑。这节课上课的时间最有可能是：（ ）

    A. 10点 B. 12点 C. 14点 D. 16点

    【2】在一年中，镇江最热月与最冷月通常出现在：（ ）

    A. 6月、12月 B. 7月、1月 C. 8月、2月 D. 9月、3月

    【答案】

    【1】C

    【2】B

    【解析】气温是受到纬度因素、海陆因素和地形等因素的影响，世界总体的规律是由赤道向两极递减，一年中气温最高的是夏季，一天中气温最高的是在午后14时。

    【1】受太阳辐射的影响，一天中正午12时的正午太阳高度最大，经2小时左右的加热后，在14时左右达到一天中的最高温，由题目可知，此节课最有可能是14时，故选C。

    【2】受太阳直射点在南北回归线移动的影响，南北半球季节相反，一年中，北半球最热的是在7月，最冷月是在1月，故选B。

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