【題目】讀圖題。（每空1分，共5分）

（1）寫出圖中字母所表示的地形部位名稱：

C．___________ D．_______________E__________ _

（2）在這幅圖中，最高點(diǎn)的海拔至少在_______米以上。

（3）如果要從A、B兩處爬山，則選擇從_____處爬山要容易些。

【答案】

（1） 鞍部 山谷 陡崖

（2） 400

（3） B

【解析】

試題分析：

(1) 在等高線地形圖上C位于兩個(gè)山頂之間，是鞍部；D位于等高線彎曲且凸向高處，是山谷；E位于等高線重疊處，是陡崖。

(2) 觀察可知，圖中的等高距是100米，由此可判斷兩個(gè)山頂?shù)暮０味荚?00米以上。

(3) 在等高線地圖上坡陡的地方等高線密集，坡緩的地方，等高線稀疏。所以B處的等高線稀疏，坡度緩，比較容易爬山。

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