纪录片《地球的力量》第一集 火山17:火山活动

For the microbes living within the orange fibers,

对于这些生活在橙色纤维里的微生物而言，

these toxic chemicals in the water are a rich soup of nutrients.

水里这些有毒的化学物质就是营养丰富的汤了。

Pools like this were very common in the early Earth.

这样的池子在早期地球十分普遍。

Fed by vocanic activity,

正是这样的火山活动

they provided all the right chemicals needed for the emergence of life

为生命的诞生提供了适合的化学物质

Mountain:Deep down below us,

在我们的地下深处，

Now, the magma itself is giving off gases like carbon dioxide, and sulfur dioxide

岩浆正释放出诸如二氧化碳 二氧化硫之类的气体

and that provides the food for these bacteria to grow.

它们都是这些微生物成长的食物。

so the volcano are like a supply chain provide all this stuff?

火山就像供应商一样 提供所有的营养物质。

They are the heat engine that drives the whole process.

它是驱动整个系统的热能发动机。

Volcanic pools like this are one possible place where life might have begun.

这样的火山池是生命诞生成为可能的地方。

But there is an alternative theory

另外有种理论认为火山创造的其它地点

as volcanoes created other places where life could have started.

可能是生命诞生的地方。

like hydro thermal vents.

热液喷口

重点讲解

1、common

a、常见的;普遍的

His name was Hansen, a common name in Norway.

他的名字叫汉森，在挪威是一个常见的名字。

Oil pollution is the commonest cause of death for seabirds.

石油污染是造成海鸟死亡最常见的原因。

b、共有的;共同的

Moldavians and Romanians share a common language.

摩尔达维亚人和罗马尼亚人使用同一种语言。

Such behaviour is common to all young people.

这种行为在年轻人中司空见惯。

c、(礼貌等)通常的，起码的

It is common decency to give your seat to anyone in greater need.

给更有需要的人让座是最起码的礼貌。

He didn't have the common courtesy to ask permission.

他连邀准这种最起码的礼貌都没有。

2、alternative

a、可供选择的；可供替代的

New ways to treat arthritis may provide an alternative to painkillers.

关节炎的新疗法可能是止痛药之外的另一种选择。

b、备选的；备用的；其他的

There were alternative methods of travel available...

还有其他可选的旅行方式。

They had a right to seek alternative employment.

他们有权另谋高就。

c、非传统的；另类的

unconventional parents who embraced the alternative lifestyle of the Sixties.

欣然接受60年代另类生活模式而不因循守旧的父母

If you like alternative comedy you'll love this book.

如果你喜欢另类喜剧的话，你就会喜欢这本书。