【題目】讀長江水系示意圖，完成下列問題。

（1）長江發(fā)源地A地 山脈，注入東海，全長 千米。

（2）長江水能資源豐富，B地是 水利樞紐工程，也是世界最大水電站。

（3）C地是 （城市名），這里是中游和下游的分界。

（4）D處是 平原，這里是我國洪澇多發(fā)區(qū)。

【答案】

（1）唐古拉 6300

（2）三峽

（3）湖口

（4）長江中下游

【解析】

試題分析：

（1）長江是我國第一長河和第一大河，長江發(fā)源于青藏高原的唐古拉山，最終注入東海，全場6300多千米，故A是唐古拉山，長江全長6300千米。

（2）長江中上游地區(qū)流經(jīng)我國地勢的階梯交界處，水能資源豐富，長江干流上有我國最大的水利樞紐—三峽水電站，故B是三峽水電站。

（3）長江上中游的分界線是湖北宜昌，中下游的分界線是江西湖口，故C是湖口。

（4）長江流經(jīng)我國的青藏高原、云貴高原、四川盆地和長江中下游平原，由于中下游長江中下游平原地勢較低，洪澇災(zāi)害頻繁，故D處是長江中下游平原。

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