VOA慢速英语:The Moving Story of Plate Tectonics

短语讲解：

1. New crust is created as melted rock pushes up from inside the planet.

push up推上去; 增高, 提高
例句：If you can't ride your bike to the top of the hill, you'll have to push it up.
如果你没有办法把车骑到山顶, 那么你得把车推上去。

2. The knowledge of the Earth’s constant motion is based on the work of scientists who study the movement of the continents.

base on使建立在…基础上,立足
例句：Action should be based on solid facts.
行动应有确凿的事实为依据。

3. Some earthquakes take place at the edges of continents.

take place发生; 举行
例句：The evening party will take place on New Year's Eve.
晚会将在除夕那天举行。

4. One part of California is on what is known as the Pacific plate.

be known as被认为是
例句：Radio, television, newspapers and magazines are known as the mass media.
广播、电视、报纸和杂志被称为大众传媒。

5. Wegener said the idea came to him when he saw that the coasts of South America and Africa fit together like two pieces of a puzzle.

fit together组成一个整体
例句：The movements of this piece of music somehow don't fit together.
这段乐曲的乐章不怎么连贯。

6. He said the oceans were more than just low places that had filled with water.

fill with (使)充〔挤〕满
例句：The hall was filled with persons welcoming him.
大厅里挤满了欢迎他的人。

7. Also, the continents and the ocean floor are not made of the same kind of rock.

make of用…做成
例句：The table is made of wood.
桌子是木制的。

8. As the hot material reaches the ocean floor, it spreads out, cools and hardens.

spread out伸展; 延长
例句：The wood spread out in all directions.
树木向四面八方延伸。

9. Then it is forced down under the continent, deep into the Earth, where it is melted again.

force down用力推下
例句：We had to force the pipe down a narrow hole to get it through.
我们必须把这根管子从那个狭窄的洞中捅下去。

10. The continents do move as new material from the center of the Earth rises, hardens and pushes older pieces of the Earth away from each other.

push away推开
例句：She ran to him for a kiss, but he pushed her away unkindly.
她跑去吻他, 但他不客气地把她推开。