【題目】甲圖為某區(qū)域圖,乙圖是甲圖中的對(duì)應(yīng)河段及其附近的等潛水位線圖,丙圖中的年徑流量曲線圖是從乙圖中A、E兩處測(cè)得的。讀圖回答下列各題。
【1】關(guān)于甲圖的說法,正確的是( )
A.位于北半球
B.位于南半球
C.圖中河流結(jié)冰期較長
D.圖中河流徑流的季節(jié)變化小
【2】關(guān)于河流EF段、CD段的說法,正確的是( )
A.EF段流向?yàn)橛杀毕蚰希珻D段河水補(bǔ)給潛水
B.EF段流向?yàn)橛赡舷虮,CD段河水補(bǔ)給潛水
C.EF段流向?yàn)橛赡舷虮,CD段潛水補(bǔ)給河水
D.EF段流向?yàn)橛杀毕蚰,CD段潛水補(bǔ)給河水
【3】比較a、b、c、d的數(shù)值大小( )
A.a(chǎn)>b>c>d B.a(chǎn)<b<c<d
C.a(chǎn)=b=c=d D.無法確定
【答案】
【1】A
【2】B
【3】B
【解析】
試題分析:
【1】讀圖,甲圖中最熱月等溫線在陸地上向北凸,海洋中向南凸,說明該地位于北半球,A對(duì),B錯(cuò)。 根據(jù)海陸位置和圖中緯度,該河流位于地中海氣候區(qū)和溫帶海洋性氣候區(qū),最冷月氣溫大于0°C,無結(jié)冰期,C錯(cuò)。圖中河流南段徑流的季節(jié)變化大,D錯(cuò)。
【2】根據(jù) 圖丙分析,A地的流量季節(jié)變化大,E地流量季節(jié)變化小,說明E地受湖泊的調(diào)節(jié)功能影響。湖泊只能調(diào)節(jié)下游河段的流量。所以 EF段流向?yàn)橛赡舷虮保珻D段河水水位高于潛水,河水補(bǔ)給潛水,A、C、D錯(cuò),B對(duì)。
【3】結(jié)合前面分析,根據(jù)河流流向,判斷潛水水位的高低,靠近河流上游水位較高 。所以a、b、c、d的數(shù)值大小是a<b<c<d,B對(duì)。A、C、D錯(cuò)。
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