读下图,并结合学习过的知识,回答下列问题。 (1)描述左图中岛

读下图并结合学习过的知识,回答下列问题。

1)描述左图中岛的地形特征。(3分)

2)根据左图中信息概括聚落的分布特点并简述其主要原因。(7分)

3)若修建连接甲、乙两城的铁路,试评价当地自然条件对铁路的影响。(5分)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

答案

 (1).地形地势特征:西南为山地,东北为平原(2分);

地势西南高,东北低(1分);

(2).分布特点:西南地区多沿海分布,中部和东北地区多沿河流分布(4分)   

主要原因:地形平坦,水源充足,交通便利(每点1  3分)

(3).有利:地形平坦(1分)   

不利:沿途多沼泽;跨越多条河流; 多火山地震,地质基础不稳固(不利影响任答2点,每点2分,共4分)

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