【題目】《黃河?jì)寢尅犯柙~寫(xiě)到“走出冰川的時(shí)候，你是那樣的清亮，等你經(jīng)過(guò)了……你就把那晶亮變成渾黃”。讀歌詞和黃河流域局部示意圖，回答下列各題。

【1】“走出冰川的時(shí)候，你是那樣的清亮……”此時(shí)黃河流淌在甲段，位于(　　)

A. 黃土高原 B. 內(nèi)蒙古高原

C. 青藏高原 D. 華北平原

【2】地勢(shì)階梯分界線上的山脈有(　　)

A. ①和④ B. ②和④ C. ①和③ D. ②和③

【3】對(duì)圖中各河段的描述正確的是(　　)

A. 甲處水流速度緩慢 B. 乙處江闊水深

C. 丙處沒(méi)有支流 D. 丁處形成地上河

【答案】

【1】C

【2】A

【3】D

【解析】黃土高原位于我國(guó)北方地區(qū)，屬于溫帶季風(fēng)氣候，受自然原因與人文原因的影響的影響，這里是世界上水土流失最嚴(yán)重的地區(qū)。

【1】由圖可知，甲段位于黃河的上游發(fā)源地，是我國(guó)海拔最高的青藏高原，平均海拔在4000米以上，有“世界屋脊”稱(chēng)號(hào)，故選C。

【2】由圖可知，圖中①是祁連山，②是賀蘭山，③是陰山山脈，④是太行山，其中祁連山是第一、第二階梯的分界線，賀蘭山和陰山是季風(fēng)與非季風(fēng)的分界線，太行山是第二、第三階梯的分界線，故選A。

【3】由圖可知，甲處處于河流發(fā)源地，河流流速快，乙河段河流狹窄；丙處是黃河支流最多的河段；丁處是黃河的下游河段，形成了“地上河”，故選D。

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