地理漫步·世界地理英语30篇（5）
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Tectonic Plates Shift Continents Slowly
构造板块缓慢移动大陆
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Earth’s crust floats on hot, moving rock below it.地壳漂浮在下方炽热流动的岩石之上。
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Big pieces called tectonic plates push and pull each other.被称为构造板块的巨大岩块相互推挤和拉扯。
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Mountains rise where plates crash together, like the Himalayas.板块碰撞处隆起山脉，如喜马拉雅山脉。
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Oceans open where plates pull apart, like the Atlantic ridge.板块分离处形成海洋，如大西洋中脊。
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Earthquakes happen when plates suddenly slip past one another.板块突然相互滑动时引发地震。
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Africa and South America once fit together like puzzle pieces.非洲与南美洲曾像拼图一样严丝合缝。
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GPS tools now measure plate movements just millimeters each year.如今GPS设备每年仅能测出几毫米的板块运动。
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This slow motion shapes continents across millions of years.这种缓慢运动在数百万年间塑造着大陆。