【题目】读哈尔滨和广州各月气温曲线图,回答下列问题:
(1)表示哈尔滨的是 ,表示广州的是 。
(2)1月份,两地气温相差约 ℃,这说明我国冬季气温分布特点 。
(3)7月份,两地气温相差约 ℃,这反映我国夏季气温分布特点是 。
(4)A图气温的年较差约 ℃;B图气温的年较差约 ℃。
【答案】
(1)图A 图B
(2)35 南北温差大,气温由南向北逐渐降低
(3)5 全国普遍高温
(4)43 13
【解析】
试题分析:本题考查我国气温分布规律。(1)从两幅气温曲线图可以看出,甲图气温年较差较大,应为我国位置较北的城市哈尔滨,乙图气温年较差较小,应为我国位置较南的城市广州。(2)从两幅气温曲线图可以看出,甲图1月气温约为-20℃,乙图1月气温约15℃,则两地一月平均气温大约相差35℃,这说明我国冬季气温南北差异大。 (3)从两幅气温曲线图可以看出,甲图7月气温约为23℃,乙图7月气温约28℃,则两地七月平均气温大约相差5℃,这说明我国夏季南北普遍高温,温差小。(4)A图中最高气温为23℃,最低气温为-20℃,故其南北温差为43℃,B图中最高气温为28℃,最低气温为15℃,故其南北温差为13℃。
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