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【題目】讀讀某區域經緯網圖和地球公轉,完成下列各題。

⑴A點的經緯度是______________,該點一年中有____次太陽直射現象。

⑵B點在A點的_______方向。

⑶B點位于五帶中的___________。

⑷當太陽直射A點時,地球位于公轉軌道示意圖上的______處。

⑸地球由公轉軌道的①處向②處運動過程中,北京市的白晝將變_____(填“長”或“短”)。

【答案】(1) 90°E 23.5°N

(2)東南

(3)熱帶

(4) ②

(5)長

【解析】試題分析:本題綜合考查地球儀知識和地球的公轉。

⑴A點的經度為90°,向東增加,故為東經90°;所在的緯線為北回歸線,故緯度為23.5°N,由于北回歸線是太陽直射的最北的界線,故一年中有一次陽光直射的現象。

沿著經緯線把A點的基本方向標記出來,根據B點在A點的方位即可判斷,B點位于A點的東南方向。

據圖中可知,B點位于赤道上,位于南北回歸線之間,故可以判斷其位置為熱帶。

太陽直射A點即直射到北回歸線上,是每年的夏至日,由上可知,此時地球運動到的位置為處。

⑸①處為全球晝夜平分,處北半球晝最長、夜最短,故白晝將變長。

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