【題目】

【1】我國西北地區(qū)綠洲農(nóng)業(yè)的主要灌溉水源來自( )

A. 高山冰雪融水B. 夏季降水C. 湖泊水D. 河流水

【2】制約西北地區(qū)農(nóng)業(yè)生產(chǎn)的主要因素是 ( )

A. 地形條件B. 水源條件C. 光照條件D. 熱量條件

【3】下列關(guān)于西北地區(qū)農(nóng)業(yè)生產(chǎn)的敘述，正確的是

A. 農(nóng)田主要分布在有河水、高山融雪水或地下水灌溉的地勢平坦的地區(qū)

B. 植被由東向西呈現(xiàn)荒漠—荒漠草原—草原過渡的趨勢

C. 河西走廊和天山山麓一帶廣種水稻、小麥、棉花、瓜果

D. 西北地區(qū)依靠冰雪融水，畜牧業(yè)和林業(yè)發(fā)達(dá)

【答案】

【1】A

【2】B

【3】A

【解析】

【1】我國西北地區(qū)位于我國內(nèi)陸地區(qū)，屬于非季風(fēng)區(qū)，降水少。主要靠夏季氣候高，高山冰雪融水，所以該地綠洲農(nóng)業(yè)的主要灌溉水源來自夏季高山冰雪融水。故選A。

【2】西北地區(qū)深居內(nèi)陸，距離海洋遠(yuǎn)，降水少，氣候干旱，制約西北地區(qū)農(nóng)業(yè)生產(chǎn)的主要因素是水源，故選B。

【3】西北地區(qū)農(nóng)田主要分布在有河水、高山融雪水或地下水灌溉的地勢平坦的地區(qū)；植被由西向東呈現(xiàn)荒漠—荒漠草原—草原過渡的趨勢，主要受降水的影響，河西走廊和天山山麓一帶廣種小麥、棉花、瓜果；西北地區(qū)依靠冰雪融水，畜牧業(yè)發(fā)達(dá)。

本題考查的是西北地區(qū)的相關(guān)知識。

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