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【题目】读下面地球表面的光照图,请回答问题。

(1)这一天是___ _________日,是二分二至日中的哪个节气 ________。

(2)太阳直射的纬线在__________,北半球是__________季,南半球是

(3)B地昼夜长短状况是________,B点比A点单位面积上得到的太阳光热_______,气温_______。

(4)用斜线表示出夜半球,此时非洲在__________,我国在__________。

【答案】(1) 12 22 冬至

(2)南回归线 冬季 夏季

(3) 昼夜等长(相等) 多 高

(4) 昼半球 夜半球

【解析】试题分析:

1)由上图的光照图可以看出,此时,太阳直射在南回归线上,北极圈出现了极昼现象,这一天是一年中的1222日前后,是北半球的冬至日。

2)由上题可知,此时太阳直射在南回归线,北半球各地的正午太阳高度最小、白昼时间最长,进入一年中的冬季。

3)由图可知,B是处于地球的最中间的赤道,在赤道上,全年都是昼夜等长的,B与A相比,B处的纬度低,正午太阳高度角大,获得太阳光热多、气温更高。

4)由图中的光照图可以看出,此时非洲是处于昼半球,而我国则处于夜半球。

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