地球的力量

Magma heated by the core rises towards the Earth's surface.
炙热的岩石受到地核加热提升到地球表面
As it spreads sideways,the Earth's crust is very slowly dragged apart.
随着向两边蔓延 地壳渐渐地被分离开

This moves the continents,creating the Earth's restless and ever-changing surface.
导致了板块运动 导致地球表面无休止的变化
But crucially for life,the core does more than just shape the planet.
但是这对于生命很关键 地核不仅仅是塑造了地球表面
Where these plates collide, it creates massive volcanic eruptions,
板块运动它造成了巨大的火山喷发
which release carbon dioxide into the atmosphere.
向大气层释放二氧化碳
Today, we think of carbon dioxide
如今，我们觉得二氧化碳
as a dangerous greenhouse gas that leads to global warming.
是导致全球变暖的危险的温室气体
But throughout Earth's long history, carbon dioxide has played a vital role
但是在地球漫长的历史长河中二氧化碳发挥着重要作用
in keeping our planet the right temperature for complex life to survive.
来维持我们的星球温度适宜 适合复杂生命存活

重点讲解

1、spread
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。
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。”
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、survive
生存;存活;幸存
the sequence of events that left the eight pupils battling to survive in icy seas for over four hours.
致使这 8 个小学生在冰冷的海水里挣扎求生四个多小时的一连串事件
Those organisms that are most suited to the environment will be those that will survive.
最适宜该环境的微生物将会存活下来。
挺过;艰难度过
On my first day here I thought, 'Ooh, how will I survive?'
我第一天到这儿时就想，“天哪，我怎么能挺过去呢?”
people who are struggling to survive without jobs.
艰难度日的失业者