【題目】 青藏地區(qū)因地勢(shì)高聳而在成為一個(gè)獨(dú)特的的地區(qū)。 青藏地區(qū)平均海拔在4000米以上,有“世界屋脊”之稱,許多山峰終年積雪,冰川廣布,雪山連綿。

據(jù)此完成下面小題

1青藏地區(qū)最突出的自然環(huán)境特征是( )

A. 干旱B. 光照充足C. 高寒D. 冬泠夏熱

2青藏地區(qū)的農(nóng)業(yè)主要分布在( )

A. 藏北高原B. 湟水谷地和雅魯藏布江谷地

C. 柴達(dá)木盆地D. 昆侖山山區(qū)

3下列地理事項(xiàng)中,與青藏鐵路沿線看到的景觀特征不相符的是( )

A. 雪山連綿,冰川縱橫B. 藏民歡歌,青稞片片

C. 許多鐵路高架列車供氧D. 經(jīng)濟(jì)發(fā)達(dá),人口稠密

【答案】

1C

2B

3D

【解析】

青藏地區(qū)因其地勢(shì)高而形成一個(gè)獨(dú)特的地理單元,這里由于海拔高,空氣稀薄,太陽輻射強(qiáng),農(nóng)業(yè)以畜牧業(yè)為主,種植業(yè)主要分布在河谷地帶。

1青藏地區(qū)由于海拔高,大氣稀薄,太陽能輻射強(qiáng),最突出的自然特征是高寒,這里是我國(guó)太陽能最豐富的地區(qū),故選C

2青藏地區(qū)由于海拔高,最突出的自然特征是高寒,農(nóng)業(yè)生產(chǎn)方式以畜牧業(yè)為主,種植業(yè)主要分布在海拔較低的湟水谷地和雅魯藏布江谷地,故選B。

3以上所述四種地理事物中,“雪山連綿,冰川縱橫”、“藏民歡歌,青稞片片”和“許多鐵路高架列車供氧”都是在青藏鐵路上能看到的,該地區(qū)自然條件惡劣,人口稀疏,經(jīng)濟(jì)落后,故選D

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