【題目】“亞心”——經(jīng)中國科學(xué)院新疆地理研究所的測算和實地考察勘定，位于東經(jīng)87°19′52″、北緯43°40′37″的新疆維吾爾自治區(qū)烏魯木齊永豐鄉(xiāng)包家槽子村是亞洲大陸地理中心，簡稱“亞心”。新疆不再是邊緣區(qū)域，而是亞洲大陸的中心。讀材料完成下題。

【1】讀字識地形，“疆”字的右半邊形象的概括了新疆的地形特征是（　�。�

A. 高原山地為主 B. 高原平原相間分布 C. 三大南北縱裂帶 D. 三山夾兩盆

【2】“亞心”的位置造就了新疆獨特的地理環(huán)境。下列關(guān)于新疆地理環(huán)境的敘述，正確的是（　�。�

A. 深居內(nèi)陸，遠離海洋

B. 典型的溫帶海洋性氣候

C. 多外流河

D. 晝夜溫差小

【答案】

【1】D

【2】A

【解析】本題組考查新疆的地形特點及其地理概況。

【1】 新疆地形以山地和盆地為主，自北向南依次是阿爾泰山脈、準噶爾盆地、天山山脈、塔里木盆地和昆侖山脈，像“疆”字的右半邊，構(gòu)成“三山夾兩盆”的地形特點。

故選D。

【2】 新疆深居亞歐大陸腹地，遠離海洋，高山環(huán)繞，海洋水汽不易到達，干旱少雨，氣溫的年較差和日較差都很大，屬于典型的溫帶大陸性氣候。新疆的盆地內(nèi)部因蒸發(fā)強烈，地表水難以保存，沙漠、戈壁廣布。新疆絕大部分河流為內(nèi)流河，河流主要依靠高山冰雪融水和山地降水補給。塔里木河是中國最長的內(nèi)流河，額爾齊斯河為中國唯一注入北冰洋的外流河。故選A。

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