地球的力量

Three-quarters of Earth is covered in water.
地球四分之三被水覆盖着
It's why it's called the blue planet.
所以我们称之为蓝色的星球
But imagine Earth without its oceans.
但是想象一下没有海洋的世界吧

And instead, with all the water in the world gathered together in a ball.
所有的水聚集到一起形成一个球体 就会是这个样子
There's not that much really.
其实没有这么夸张
But this water is what makes Earth different
但是水是地球区别于太阳系其它星球的一个特征
from every other planet in the solar system.
但是水是地球区别于太阳系其它星球的一个特征
The oceans have been here for almost four billion years,
海洋已经在这里存在约40亿年了
carving the coastline, driving the climate
雕刻着海岸线，改变着气候变化
and controlling the destiny of life itself
控制着生命本身的命运

重点讲解

1、cover
遮盖;掩蔽
Cover the casserole with a tight-fitting lid.
用大小合适的盖子盖住砂锅。
He whimpered and covered his face.
他掩面抽泣。
盖在…上面;铺在…上面
His finger went up to touch the black patch which covered his left eye.
他伸手去触摸遮住左眼的黑眼罩。
His head was covered with a khaki turban.
他头上包着卡其布的穆斯林头巾。
盖;覆盖;遮住
The clouds had spread and nearly covered the entire sky.
云彩扩散开来，几乎遮住了整个天空。
Two oil slicks are covering a total area of seven square miles.
两层浮油漂浮在7平方英里的区域上。
2、control
(对机构、地方、体系等的)控制权，支配权
The restructuring involves Mr Ronson giving up control of the company.
这次改组涉及龙森先生放弃对公司的控制权。
The first aim of his government would be to establish control over the republic's territory.
他这届政府的首要目标是确立对共和国领土的控制权。
控制(能力);支配(能力)
He lost control of his car.
他的汽车失控了。
Some teachers have more control over pupils than their parents have.
有的老师比小学生的父母更能管得住他们。
克制;控制力
He had a terrible temper, and sometimes he would completely lose control.
他的脾气很坏，有时会完全失控。
He was working hard to keep control of himself.
他正努力克制自己。