英语听力：自然百科:行星旅行指南 火星(22)

It's only place on earth where Viking could have landed and search for life and dirt on earth and not found it and instead found the reactive mixture of chemicals.

这是地球上唯一一个维京号能登陆并寻找地球生命和污垢的地方，没有找到它,而是发现了化学混合物的反应。

The only place. Even here, in the driest corner of the driest desert on earth,

唯一的地方。即使在这里,在地球上最干旱的沙漠中这最干燥的角落,

life has confounded scientists.

生命也一直在困扰着科学家们。

Cyanobacteria have been found living inside the rock heart salt of a long-gone lake.

蓝藻已被发现在盐湖的岩石中心。

This is a halite.

这是氯化钠盐,

It's a sodium¹ chloride salt,

这是岩盐。

which is colonized² by Cyanobacteria.

而这是蓝藻的殖民地。

It's dark green because they have this particular pigment³ protecting them from the access of UV light.

它是深绿色的,因为它们有这个特殊的色素保护自己从而不受紫外线的侵害。

Once in a blue moon,

曾经的蓝色月亮,

a fleeting⁴ early morning ground fog deliver some rare humidity to the air above the desert.

一个短暂的清晨，低雾给沙漠上空的空气带来一些罕见的湿气。

These precious moisture is greedly sucked into the microscopic⁵ pores of the water-hungery rock salt.

这些珍贵的水分被岩盐中口渴难耐的微孔吸入。

This is a very rare event so these bacteria are living in an environment where liquid water is available a few hours during one year, very, very hard.

这是一件非常罕见的事情,所以这些细菌生活在一年内仅几个小时液态水的环境中，可想而知非常,非常困难。

1 sodium   

n.（化）钠

参考例句：

• Out over the town the sodium lights were lit.在外面，全城的钠光灯都亮了。
• Common salt is a compound of sodium and chlorine.食盐是钠和氯的复合物。

2 colonized   

开拓殖民地，移民于殖民地( colonize的过去式和过去分词 )

参考例句：

• The area was colonized by the Vikings. 这一地区曾沦为维京人的殖民地。
• The British and French colonized the Americas. 英国人和法国人共同在美洲建立殖民地。

3 pigment   

n.天然色素，干粉颜料

参考例句：

• The Romans used natural pigments on their fabrics and walls.古罗马人在织物和墙壁上使用天然颜料。
• Who thought he might know what the skin pigment phenomenon meant.他自认为可能知道皮肤色素出现这种现象到底是怎么回事。

4 fleeting   

adj.短暂的，飞逝的

参考例句：

• The girls caught only a fleeting glimpse of the driver.女孩们只匆匆瞥了一眼司机。
• Knowing the life fleeting,she set herself to enjoy if as best as she could.她知道这种日子转瞬即逝，于是让自已尽情地享受。

5 microscopic   

adj.微小的，细微的，极小的，显微的

参考例句：

• It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
• A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。