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【题目】读地球公转示意图,回答以下问题。

a、当地球公转到A点时,平顶山市的节气是 ;这一天属于北半球的 季,南半球的 季。此时,太阳直射在 (纬度)上,时间是 前后。

b、当地球公转到B点时,北半球得到的太阳光热最 ,正午太阳高度角最

c、当地球公转到D点时,北半球昼长 (大于、小于、等于)夜长,日期是

d、当地球公转到A、C点时,全球昼夜长短情况是

【答案】a、春分日 春季 秋季 赤道 3月23日 b、 c、小于 12月22日 d、昼夜等长

【解析】

试题分析: a、读地球公转示意图可知,当地球公转到图中A点位置时,平顶山市的节气是春分日;这一天属于北半球的春季,由于地球的公转,南北两个半球的季节相反,此时南半球是秋季。此时,太阳直射在赤道0°纬线上,时间是3月23日前后。

b、读地球公转示意图可知,当地球公转到图中B位置点时,是6月22日前后,此时时北半球的夏季,太阳光直射北回归线,此时北半球得到的太阳光热最,正午太阳高度角最大,物体的影子最短

c、读地球公转示意图可知,当地球公转到图中D位置点时,太阳直射南回归线,北半球昼长小于夜长,昼最短,夜最长。日期是12月22日前后

d、读地球公转示意图可知,图中A点是北半球的春分日,C点是北半球的秋分日。当地球公转到A、C点时,太阳直射赤道,全球昼夜等长

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