【題目】氣溫是指大氣的溫度，午熱晨涼，冬寒夏暑，氣溫在不斷變化。據(jù)此完成下列問題。

【1】上課鈴響了，幾個(gè)同學(xué)滿頭大汗跑進(jìn)教室，老師說：通常這個(gè)時(shí)候是一天中氣溫最高的時(shí)候，要注意防暑。這節(jié)課上課的時(shí)間最有可能是：（ ）

A. 10點(diǎn) B. 12點(diǎn) C. 14點(diǎn) D. 16點(diǎn)

【2】在一年中，鎮(zhèn)江最熱月與最冷月通常出現(xiàn)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】氣溫是受到緯度因素、海陸因素和地形等因素的影響，世界總體的規(guī)律是由赤道向兩極遞減，一年中氣溫最高的是夏季，一天中氣溫最高的是在午后14時(shí)。

【1】受太陽輻射的影響，一天中正午12時(shí)的正午太陽高度最大，經(jīng)2小時(shí)左右的加熱后，在14時(shí)左右達(dá)到一天中的最高溫，由題目可知，此節(jié)課最有可能是14時(shí)，故選C。

【2】受太陽直射點(diǎn)在南北回歸線移動的影響，南北半球季節(jié)相反，一年中，北半球最熱的是在7月，最冷月是在1月，故選B。

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