2026年6月英语六级听力真题 卷二 录音 2

Recording Two

录音2

It was a lazy, hazy, crazy day on the dwarf planet Pluto when New Horizons, a spacecraft from Earth, flew by at a speed of 3,100 miles per hour two years ago.

两年前，地球探测器“新视野号”以每小时3100英里的速度飞掠矮行星冥王星，那天冥王星雾气弥漫，氛围奇特。

The spacecraft took a bunch of photos, made some quick measurements of Pluto’s atmosphere, and sent them all back here, giving planetary scientists their first up-close look of the distant dwarf planet.

探测器拍摄了大量照片，快速测量了冥王星大气层的数据，并将所有资料传回地球，让行星科学家首次近距离观测这颗遥远的矮行星。

One of the more bizarre things they found was that the haze in Pluto’s atmosphere was much thicker than previously thought.

他们发现的奇特现象之一是，冥王星大气层中的雾气远比此前预估的更加浓厚。

The planet also had an atmosphere much cooler than earlier estimates, topping out at −333.4 degrees Fahrenheit.

冥王星大气层的温度也远低于早前测算值，最高气温仅有华氏零下333.4度。

Now, a study published in *Nature* links those two atmospheric observations.

如今，一篇发表在《自然》期刊上的研究将这两项大气层观测结果关联在了一起。

A computer model developed by planetary scientist Xi Zhang and colleagues shows the haze of tiny droplets in the upper atmosphere is likely scattering light from the Sun, preventing heat from reaching the planet below.

行星科学家张西及其团队搭建的计算机模型表明，冥王星高层大气里由微小液滴构成的雾气很可能会散射太阳光，阻挡热量抵达星球地表。

We see hazy skies on Earth, too, from time to time whenever solid particles get suspended in the air, from water-based fogs to ash from fires, to the toxic droplets that make up a thick smog.

地球上也时常会出现雾霾天气：固体颗粒悬浮在空中，无论是水汽形成的雾气、火灾产生的火山灰，还是构成厚重雾霾的有毒液滴，都会造成朦胧的天空。

But on Earth, the overall temperature of the planet is dominated by the distribution of gases in our atmosphere.

但在地球上，全球整体气温是由大气层内气体的分布情况决定的。

On Pluto, the authors suggest, haze might be more influential. Particles can reflect light from the Sun.

该研究的作者提出，在冥王星上，雾气的影响或许更大，雾气颗粒能够反射太阳光。

Here on Earth, it happens after volcanoes erupt, emitting clouds of particles that reflect the Sun’s rays into the atmosphere.

在地球上，火山喷发后就会出现类似现象：火山喷射出颗粒云，将太阳光反射回大气层中。

Some people even propose imitating this phenomenon to alleviate the effects of climate change, but our planet isn’t dominated by that process, or at least it hasn’t been for a few billion years.

甚至有人提议模仿这一现象来缓解气候变化带来的影响，但地球的气温并不受该机制主导，至少数十亿年来一直如此。

If Pluto’s atmosphere is very different from ours and from that of other nearby planets, it could help scientists expand their understanding of planetary atmospheres.

倘若冥王星的大气层与地球以及周边其他行星的大气层差异巨大，这将有助于科学家拓展对行星大气层的认知。

But right now, this is just a good guess, based on data from New Horizons and a sophisticated computer model, not direct observations of the haze’s composition.

但目前这仅仅是合理猜想，依据只有新视野号传回的数据与精密计算机模型，并没有针对雾气成分的直接观测结果。

There are other theories floating around to explain Pluto’s cool temperatures, including blaming the cold air gases in the atmosphere.

学界还流传着其他解释冥王星低温成因的理论，其中一种观点认为低温源于大气层中的冷空气气体。

Luckily, the authors will get a chance to test their notions when the James Webb Space Telescope launches later.

幸运的是，等到詹姆斯·韦伯太空望远镜后续升空后，研究人员就有机会验证他们的猜想。

That observatory can detect different spectrums of light, which the hazy Plutonian atmosphere would be positively glowing with as it scatters sunlight.

这台望远镜能够捕捉不同光谱的光线，冥王星布满雾气的大气层在散射太阳光时，本身就会发出这类光谱光。

The researchers just have to wait and see if the light from the telescope validates their bright idea.

研究人员只能静待观测结果，看看望远镜传回的光线数据能否证实他们这一巧妙猜想。

Questions 19 to 21 are based on the recording you have just heard.

第19至21题基于你刚刚听到的录音。

Question 19. What was one of the more bizarre findings about Pluto’s atmosphere?

关于冥王星大气层，较为奇特的发现之一是什么？

Question 20. What is said to determine the overall temperature on Earth?

据称，什么因素决定了地球的整体温度？

Question 21. What does the speaker say the researchers have to wait and see?

说话者表示，研究人员还需要等待观察什么结果？

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