Why Sea Sometimes Rise and Sometimes Fall

时间：2008-07-30 07:57:23

（单词翻译:单击）

The rising and falling of the sea is known as rising tide and ebb1 tide. Why does the tide rise? Actually, it is the sun and the moon that are pulling the tide. When the water on one side is pulled, the other side of the sea falls.

　　The earth has a special kind of attraction known as gravitation. It is this gravitation that pulls you back when You JUMP; it is also this gravitation that attracts the sea water. When there is a strong gravitation， the tide rises; when there is a weak gravitation, the tide ebbs2.


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1 ebb ebb     
vi.衰退，减退；n.处于低潮，处于衰退状态
参考例句：
  • The flood and ebb tides alternates with each other.涨潮和落潮交替更迭。
  • They swam till the tide began to ebb.他们一直游到开始退潮。
2 ebbs d063a176e99135853a8d4071296e1705     
退潮( ebb的名词复数 )； 落潮； 衰退
参考例句：
  • When the tide ebbs it's a rock pool inhabited by crustaceans. 退潮时，它便成为甲壳动物居住的岩石区潮水潭。
  • The new Russia steadily ebbs away drive out of Moscow. 驶离莫斯科愈来愈远以后，俄罗斯崭新的景象也逐渐消失。

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