地球的力量

Such wild climatic swings would have made the planet uninhabitable.
这样疯狂的气候变化 会使得地球无法居住
Vet there's something rather strange happening to the Moon
但是月球的行为很奇怪
that means we shouldn't take it for granted.MeetJerry Wiant.
这意味着我们不能不懂得珍惜 认识一下杰瑞·维恩特

Every morning, he rides up to the McDonald Observatory in West Texas,
每天早上，他都开摩托去得克萨斯西部的麦克唐纳天文馆
and it's thanks to his work that we know something extraordinary about the Moon.
多亏了他的努力 我们了解到了月球独一无二的特点
So, how many times do you make this journey?
你走这条路多少次了？
Every day for 37 years.37 years! -Yeah, on this bike.
连续37年，没有任何间断 37年-是的，就骑这个摩托
You're joking? -No, this one bike.That's it up there, is it? -Yeah.
你开玩笑吧-没有，就它 就在上面，是吗？-是的
Jerry's job is deceptively simple.
杰瑞的工作看起来很简单
Once a day, he fires a laser at the Moon in order to measure its distance from Earth.
他每天都要向月球发射一束激光 为了测量它与地球的距离
Measuring the distance to the Moon is quite simple.
测量月球距离很简单
We start with a bundle of light,we send it through a telescope,
我们用望远镜发射一道光朝向月球 它到达月球后照射到反射镜
when it reaches the Moon it hits a reflector,and it comes back toward Earth.
它到达月球后照射到反射镜 激光反射回地球
We intercept that with our telescope and what we do is we time when the light left
我们纪录光发射和回来的时间 我们纪录光发射和回来的时间
and we time when the light comes back, and that's our data.
这就是来回的距离这就是我们的数据

重点讲解

1、extraordinary
非凡的;优秀的;出色的
We've made extraordinary progress as a society in that regard.
在那个方面，我们的社会已经取得了巨大的进步。
The task requires extraordinary patience and endurance.
那项任务需要非凡的耐心和毅力。
非常奇特的;令人惊奇的
What an extraordinary thing to happen!
这事儿真蹊跷！
His decision to hold talks is extraordinary because it could mean the real end of the war.
他作出举行谈判的决定非同寻常，因为这可能意味着战争真的要结束了。
（会议）特别的
at an extraordinary meeting of the sport's ruling body.
在体育运动管理机构的特别会议上
Representatives of the colonies met in an extraordinary congress.
各殖民地代表在一次特别大会上会面。
2、come back
回忆起;回想起来
He was also an MP — I'll think of his name in a moment when it comes back to me.
他当时也是一位国会议员，他的名字我得想一下才能记起来。
When I thought about it, it all came back.
当我回想起来，往事全都涌上了心头。
重新流行;再度时兴
I'm glad hats are coming back.
我很高兴又开始流行戴帽子了。