读图甲“日照图”和图乙“二分二至时地球位置示意图”,回答下列问题.(1)在甲图中画出太阳直射光线.

2025-03-16 02:36:19
推荐回答(1个)
回答1:

(1)读图可知,北极圈及其以北出现极昼,此时为北半球的夏至日,太阳直射北回归线.
(2)该日为夏至日,太阳直射北回归线;夏至日北回归线及其以北的地区正午太阳高度达到一年中的最大值.
(3)A位于晨昏线上,太阳高度角为0;B位于南极圈,出现极夜现象;B、C都位于北回归线上,公转速度相同、昼夜长短相同、季节相同,气候类型可能不同.
(4)从冬至到春分,期间经过1月初的近日点,因此公转速度先变快后变慢;北京正午太阳高度逐渐增大,人影越来越短;白昼逐渐变长,升国旗会越来越早;北极地区的极昼范围会越来越小,南极地区的极夜会越来越小.
故答案为:
(1)画图:                                  
(2)23°26′N(北回归线);北回归线及其以北地区     
(3)0,夜,BC                                  
(4)CD

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