【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(kuò)大

C. 由西向東逐漸縮小 D. 由西向東逐漸擴(kuò)大

【答案】

1A

2B

【解析】試題分析:

1】四個(gè)城市冬至?xí)r的正午太陽高度,按照與太陽直射點(diǎn)的緯度差,體現(xiàn)了四個(gè)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(diǎn)越近,緯度越低,從表中可見正午太陽高度由大到小的順序?yàn)?/span>②③④①,緯度最高的應(yīng)該是,A正確。

2】日照間距與正午太陽高度呈負(fù)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(fù)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(kuò)大,選B項(xiàng)。

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