地球的力量

Jupiter is more than three hundred times bigger than Earth,
木星比地球大300多倍
so it has a massive gravitational field.
所以它具有巨大的万有引力
This attracts dangerous flying objects that might otherwise hit Earth.
这会吸引危险的飞行星体否则就会向地球飞来

Jupiter is Earth s protector.Scientists have even seen it in action.
木星是地球的保护神 科学家甚至亲眼见到过
In the early 1990s,a comet was captured by Jupiter's powerful gravity.
在20世纪90年代初 一个彗星被土星巨大的引力捕捉到
It broke up into many different pieces,which smashed into the planet.
它碎成了许多片 撞到了土星上
Some of the blasts left scars as big as Earth itself
有些爆炸留下的痕迹和地球一样大
Without Jupiter, it's likely Earth would have been pummelled
没有土星，地球可能会每隔一万年
by huge impacts like this e very 10,000 years or so.
就受到一次这样的冲击
Under that kind of bombardment,it's hard to imagine how complex life could ever have got going.
在这样的轰炸下 很难想象复杂生命可以延续
Any planet that's to be a home to complex life needs liquid water,
任何星球想产生复杂生命都需要液态水
a sun that doesn't burn out too quickly and a giant neighbour to protect it from meteorites.
太阳不会很快蒸发它 有个巨大的邻居保护它不受陨石侵袭

重点讲解

1、capture
(尤指在战争中)俘虏，擒获，占领，夺取
The guerrillas shot down one aeroplane and captured the pilot.
游击队击落了一架飞机,并俘获了飞行员。
The whole town celebrated when two tanks were captured.
全城居民庆祝缴获了两辆坦克。
代表（特点);表现,体现(感情、气氛)
Chef Idris Caldora offers an inspired menu that captures the spirit of the Mediterranean.
厨师伊德里斯·卡尔多拉开出一份富有地中海特色的菜单，让人眼前一亮。
Their mood was captured by one who said, 'Students here don't know or care about campus issues.'
一个人的话道出了他们的心情，“这儿的学生既不了解也不关心校园问题。”
吸引(注意力);激发(想象);赢得(喜爱)
the great names of the Tory party who usually capture the historian's attention.
往往会引起历史学家关注的保守党大人物
the issue that has captured the imagination of nearly the whole nation.
激发了几乎所有国人想象力的争论
2、break up
（使）分裂；（被）拆分；(使）破碎
Civil war could come if the country breaks up.
如果国家分裂就会爆发内战。
There was a danger of the ship breaking up completely.
这艘船有彻底解体的危险。
（恋人）分手；（夫妻）结束关系
My girlfriend had broken up with me.
我的女朋友已跟我分手了。
He felt appalled by the whole idea of marriage so we broke up.
他被结婚的想法吓住了，因此我们分了手。
散（会）；（使）解散
A neighbour asked for the music to be turned down and the party broke up.
因为一个邻居要求把音乐音量调低，聚会便散了。
Police used tear gas to break up a demonstration.
警察使用催泪瓦斯驱散示威人群。