【題目】下表為我國部分城市住宅的日照間距,完成下列各題。
【1】
A. ① B. ② C. ③ D. ④
【2】
A. 由南向北逐漸縮小 B. 由南向北逐漸擴大
C. 由西向東逐漸縮小 D. 由西向東逐漸擴大
【答案】
【1】A
【2】B
【解析】試題分析:
【1】四個城市冬至時的正午太陽高度,按照與太陽直射點的緯度差,體現(xiàn)了四個城市的緯度高低。我國位于北半球,冬至日太陽直射南回歸線,正午太陽高度由南向北遞減,正午太陽高度越大離太陽直射點越近,緯度越低,從表中可見正午太陽高度由大到小的順序為②③④①,緯度最高的應(yīng)該是①,A正確。
【2】日照間距與正午太陽高度呈負相關(guān)的關(guān)系。正午太陽高度與緯度大致呈正相關(guān)的關(guān)系。因此,日照間距與緯度也大致呈負相關(guān)的關(guān)系。因此緯度越高日照間距越小,由此判斷我國建筑物的日照間距由南向北逐漸擴大,選B項。
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