【题目】读图,回答下列问题。
(1)图中所示的河流是 , 它是我国的第长河,发源于山脉。
(2)在上游干旱的宁夏、内蒙古境内,该河塑造了宁夏平原和A平原,它为沿岸地球提供了灌溉之利。
(3)“一碗水,半碗泥”的说法,形象地反映了该河河段含沙量之大。
(4)为了避免洪水的灾害,国家在该河的下游。
【答案】
(1)黄河;二;巴颜喀拉
(2)河套
(3)中下游
(4)加固黄河大堤
【解析】考查黄河的概况,要理解记忆。解:(1)黄河是我国第二长河,也是世界著名大河之一。它源自巴颜喀拉山,流经青海、四川等9省区,注入渤海。(2)黄河出青铜峡后,在宁夏、内蒙古段,地势比较平坦,水流缓慢,泥沙沉积,形成了宁夏平原和A河套平原。(3)“一碗水,半碗泥”的说法,形象地反映了该河中下游河段含沙量之大。(4)建国以来,对黄河进行了综合治理。一方面在上、中游,特别是黄土高原地区,大力开展水土保持工作,控制水土流失,减少泥沙下泄;另一方面在下游修堤筑坝,加固黄河大堤。这样,对确保黄河下游两岸人民生命财产安全起到了很大作用。所以答案是:(1)黄河;二;巴颜喀拉;(2)河套;(3)中下游;(4)加固黄河大堤。
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