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听力等级

科学研究   常速英语

2023-08-09   Video
The Search for a Mutated Gene

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SPEAKER: Just before his sophomore year of college, Sam Walker decided to update his contact lens prescription. Sam's vision has never been great, and he was having trouble seeing in low ...

演讲者:就在他之前大学二年级,Sam Walker决定更新他的隐形眼镜处方。Sam的愿景从来都不伟大,他遇到了麻烦在昏暗的光线下看。那次例行的眼睛检查医生揭示了一个问题。萨姆·沃克:他看到了这些我眼睛里有黑色的小斑点。他说我不是100%知道...


2023-08-05   Video
How to Improve Indoor Air Quality

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Did you know that we spend about 90 percent of our time indoors? So why aren’t we talking about indoor air quality, especially when COVID is still spreading and so many people are being encouraged to...

您知道我们大约 90% 的时间都在室内度过吗? 那么,我们为什么不谈论室内空气质量,尤其是在 COVID 仍在传播并且鼓励这么多人返回办公室的情况下呢? 让我解释一下。 我们知道,导致 COVID 的病毒 SARS-CoV-2 是通过...


2023-08-03   Video
Overpopulation & Africa

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For most of our history, the human population grew slowly, until new discoveries brought us more food, and made us live longer. In just a hundred years, the human population quadrupled. Th...

在我们历史的大部分时间里,人类人口增长缓慢, 直到新的发现给我们带来了更多的食物, 让我们活得更久。 在短短一百年内,人类人口翻了两番。 这导致了地球过度拥挤的世界末日景象。 但人口增长率实际上在 1960 年...


2023-07-30   Video
The Deep Sea

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Sometimes the world feels...hmm, boring. We've visited all the remote islands, conquered the Arctic, and penetrated the deepest jungles. But there is still one place to explore. It's a wet an...

有时,世界感觉......嗯,无聊。 我们走遍了所有偏远的岛屿,征服了北极,深入了最深的丛林。 但仍然有一个地方值得探索。 这是一个潮湿而致命的沙漠,居住着生活在完全黑暗中的神秘生物。 深海。 让我们潜入。 ...


2023-07-26   Video
The James Webb Space Telescope just Revealed Our Universe Anew

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This is the picture we've all been waiting for. The deepest image of the cosmos ever captured. Humanity has never seen so far back and so clearly into the depths of the universe's hi...

这是我们的照片 一直在等待。 宇宙最深处的图像 曾经被俘虏。 人类从未见过这么久以前 而且如此清晰地深入深处 宇宙的历史。 众多无名星系 你看这里,发出它们的光芒 130 多亿年前,仅仅...


2023-07-22   Video
The World War of the Ants – The Army Ant

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Some groups just don't get along. Every day, billions of soldiers fight a merciless war on thousands of fronts, and it's been going on for over 100 million years. The World War of the Ants. [...

有些团体就是相处不来。 每天,数十亿士兵在数千条战线上进行一场无情的战争,这场战争已经持续了 1 亿多年。 蚂蚁的世界大战。 [音乐] 蚂蚁是出现于周围地区的古老生物 1.6 亿年前,并接管了各种各样的 ...


2023-07-20   Video
Seed Dispersal and Forest Fragmentation

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SPEAKER 1: The tropical forests of Colombia are home to a myriad of plant and animal species. Like many of the world's forests, this one in the Middle Magdalena Valley is also under threa...

演讲者 1:热带 哥伦比亚的森林 是无数 植物和动物物种。 像许多 世界森林, 这个位于中马格达莱纳 Valley 也受到威胁。 作为哥伦比亚的人口 生长,大片森林 被清理为农田 和养牛场。 ...


2023-07-18   Video
Artificial Intelligence is Helping Save This Small Town From its Toxic Nightmare

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Clean water is a human right everybody should have. We need to make sure that the water is clean and safe for people to drink. Benton Harbor, Michigan is in crisis. The community’s water...

清洁水是一项人权 每个人都应该这样做。 我们需要确保水 干净安全,可供人们饮用。 密歇根州本顿港(Benton Harbor, Michigan)正处于危机之中。 社区的水不能安全饮用,因为 它含有潜在毒性的铅。 ...


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