新的海洋形成了

It happens because hot rock from the Earth's interior rises up.

因为地球内部的热量加热熔岩，使它往上升

Near the surface,the rock spreads sideways in two directions.

熔岩在靠近地表的地方 朝两个方向散开，各自往一侧涌动

It begins to lose heat.

这时它的热量开始散失

Eventually, the much cooler rocks sinks back down.

最终，温度稍低的熔岩沉下去了

through this spreading process

通过这种扩散过程

the Earth crust is very slowly dragged apart

使地壳慢慢地被牵引开来

and it is this, that ultimately caused the continents to move.

并最终使陆地开始移动

225 million years ago,

2亿2500万年前

our planet was unrecognisable.

我们的行星看起来和现在是很不一样的

All the continents were joined together in a single super continent, called Pangea.

那时所有的大陆是连在一起的叫做盘古大陆

As the plates moved, this super continent broke up.

当大陆漂移时这块巨大的板块破裂开来

New ocean is formed as continents drifted along the globe.

随着大陆沿着地球漂移 新的海洋形成了

It is this that created the shape of world we know today.

这样形成了我们今天的世界

but the churning heat beneath us means the plates never stopped moving

但是大陆板块从来没有停止漂移

in the distant future, our continents will once again

在遥远的将来 大陆板块会重新

be reunited in a new giant super continent.

结合成一个新的巨大的板块

重点讲解

1、spread

a、摊开;铺开

She spread a towel on the sand and lay on it.

她在沙滩上铺了一条毛巾，躺在上面。

His coat was spread over the bed.

他的外套摊在床上。

b、伸出，张开,叉开(手臂、双手、手指、双腿等)

Sitting on the floor, spread your legs as far as they will go without overstretching.

坐在地板上，在不要拉伤的前提下将双腿尽量分开。

He stepped back and spread his hands wide. 'You are most welcome to our home.'

他往后退了一步，伸开双手。“非常欢迎你到我们家来。”

c、涂;抹;敷

Spread the mixture in the cake tin and bake for 30 minutes.

将混合物抹在蛋糕烤盘里，烘烤 30 分钟。

A thick layer of wax was spread over the surface.

表面涂上了厚厚的一层蜡。

2、ultimately

a、最终；最后；终于

Whatever the scientists ultimately conclude, all of their data will immediately be disputed.

不管科学家们最后得出什么样的结论，他们的全部数据将会立即引起争议。

a tough but ultimately worthwhile struggle.

艰苦卓绝但最终还是值得的一次抗争

b、根本上；归根结底

Ultimately, Bismarck's revisionism scarcely affected or damaged British interests at all.

从根本上说，俾斯麦的修正主义几乎未对英国的利益造成一丝一毫的影响或损害。