题目内容

【题目】 人类从未终止过对海陆变迁奥秘的探索。完成下面小题。

【1】提出大陆漂移假说的科学家是（　　）

A.托勒密B.哥白尼C.魏格纳D.麦哲伦

【2】日本火山、地震频繁，是因为日本位于哪两大板块交界处，地壳活跃（　　）

A.亚欧板块与印度洋板块B.亚欧板块与美洲板块

C.亚欧板块与北冰洋板块D.亚欧板块与太平洋板块

【答案】

【1】C

【2】D

【解析】

【1】大陆漂移假说是20世纪初魏格纳提出的。大陆漂移假说认为，地球上原先只有一块叫“泛大陆”的庞大陆地，被叫做“泛大洋”的广袤海洋所包围。大约两亿年前，泛大陆开始破裂，碎块像浮在水上的冰块一样向外越漂越远。距今大约两三百万年前，形成现在七大洲，四大洋的基本面貌。德国科学家魏格纳在偶然翻阅世界地图时发现：大西洋的两岸﹣﹣欧洲和非洲的西海岸遥对南北美洲的东海岸，轮廓非常相似，这边大陆的凸出部分正好能和另一边大陆的凹进部分凑合起来，他坚信这不是巧合，便顺着这条思路研究下去，后来提出了大陆漂移假说。故选C。

【2】日本位于亚洲东部、太平洋西北部。领土由北海道、本州、九州、四国四个大岛以及附近一些小岛组成；日本的海岸线慢长，沿岸多岛屿、半岛、海湾和天然良港。日本位于亚欧板块和太平洋板块的交界处，地壳比较活跃，多火山地震。故选D。

该题考查大陆漂移学说和板块运动的影响。

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