【題目】讀等高線地形圖，回答下列問題。

（1）寫出下列字母所代表的地形部位：A________, C________, E________, G_________,

（2）在A 、B兩條線路中，從_______處爬山 比較容易。

（3）山峰D的海拔高度大約是__________米。

【答案】山脊 山谷 鞍部 山峰 A 450

【解析】

（1）由圖可知，圖中A是等高線向低處凸出的山脊，C是等高線向高處凸向的山谷，E是位于兩座山間的鞍部，G是等高線中間高、四周低的山峰。

（2）在A 、B兩條線路中，從A處爬山更易，因為此處等高線更稀疏，表示坡度更緩。

（3）由圖可知，圖中等高距是100米，所以山峰D處的海拔高度是大于400米，小于500米。

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