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【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】

1C

2D

【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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