【題目】 人類從未終止過對海陸變遷奧秘的探索。完成下面小題。

1提出大陸漂移假說的科學(xué)家是( 。

A.托勒密B.哥白尼C.魏格納D.麥哲倫

2日本火山、地震頻繁,是因為日本位于哪兩大板塊交界處,地殼活躍( 。

A.亞歐板塊與印度洋板塊B.亞歐板塊與美洲板塊

C.亞歐板塊與北冰洋板塊D.亞歐板塊與太平洋板塊

【答案】

1C

2D

【解析】

1大陸漂移假說是20世紀(jì)初魏格納提出的。大陸漂移假說認(rèn)為,地球上原先只有一塊叫“泛大陸”的龐大陸地,被叫做“泛大洋”的廣袤海洋所包圍。大約兩億年前,泛大陸開始破裂,碎塊像浮在水上的冰塊一樣向外越漂越遠(yuǎn)。距今大約兩三百萬年前,形成現(xiàn)在七大洲,四大洋的基本面貌。德國科學(xué)家魏格納在偶然翻閱世界地圖時發(fā)現(xiàn):大西洋的兩岸﹣﹣歐洲和非洲的西海岸遙對南北美洲的東海岸,輪廓非常相似,這邊大陸的凸出部分正好能和另一邊大陸的凹進(jìn)部分湊合起來,他堅信這不是巧合,便順著這條思路研究下去,后來提出了大陸漂移假說。故選C。

2日本位于亞洲東部、太平洋西北部。領(lǐng)土由北海道、本州、九州、四國四個大島以及附近一些小島組成;日本的海岸線慢長,沿岸多島嶼、半島、海灣和天然良港。日本位于亞歐板塊和太平洋板塊的交界處,地殼比較活躍,多火山地震。故選D。

該題考查大陸漂移學(xué)說和板塊運動的影響。

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