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听力等级

科学研究   

2023-11-15   Intermediate
The Life of Super-Earths, Dimitar Sasselov, Part Three

Keywords:

Steve: And on a simpler level, as you point out in the book, let's say the Earth flew out of its orbit, and was just passing through the galaxy untethered to a star; the surface life would al...

Steve:在更简单的层面上,正如你在书中指出的,假设地球飞出了它的轨道,刚刚穿过星系,没有被恒星束缚;表面生命会比这更快地消失,但深处的东西可能会持续很长时间。 Sasselov:这也是一个新的认识。事实上,所有这些深入的生物圈研究都是...


2023-11-15   Video
Your Aching Back

Keywords:

>> So your back's a real pain. Turns out many back problems are the result of our ancestors' transition from walking on four legs to walking on two. The earliest primates lived in trees...

>>所以你的背很疼。原来很多人都回来了问题就是结果我们祖先的'从步行过渡从四条腿走路到两条腿走路。最早的灵长类动物住在树上,然后搬家四肢着地就像现代猴子一样。但到了320万年前,原始人是严格的两足动物。露西等化石在埃塞俄比亚的偏远地区,这就...


2023-11-13   Intermediate
The Life of Super-Earths, Dimitar Sasselov, Part Two

Keywords:

Steve: What do we still need to do to be able to identify the signature of life—even microbial life—on an exoplanet? Sasselov: What we know how to do today is we know technically ho...

Steve:我们还需要做什么才能识别系外行星上生命甚至微生物生命的特征? Sasselov:我们今天所知道的就是我们在技术上知道如何进行遥感。而这本质上是在行星上方的大气中寻找气体。我们已经了解到,在整个 20 世纪,我们可以很好地对非常...


2023-11-13   Video
What If Earth got Kicked Out of the Solar System

Keywords:

The night sky seems peaceful and orderly. But in reality, stars are careening through the galaxy at speeds of hundreds of thousands of kilometers per hour. Not bound by static formations but ...

夜空显得宁静而有序。但在事实上,恒星在银河系中倾斜数十万公里的速度每小时。不受静态构造的约束,但不断变化的社区。幸运的是太空很大,银河系的恒星也是如此不太可能袭击我们。不幸的是,他们不必打任何东西就能逼我们在地球上度过一段非常糟糕的时光。在...


2023-11-12   Pre-Intermediate
A Blood Disorder Called Sickle Cell Anemia - Ⅱ

Keywords:

“[Instead of] excelling physically outdoors, I stay in and think creatively. I write music and come up with program ideas. I use my mind [instead of] my body.” There is no cure for Sickle Cell Anem...

[而不是] 在户外表现出色,而是呆在家里并创造性地思考。我写音乐并提出程序创意。我用的是我的思想 [而不是] 我的身体。 镰状细胞性贫血无法治愈。但这是可以预防的。你看,镰状细胞性贫血是一种遗传性疾病。正是在基因中,父母传递给了他们的...


2023-11-11   Intermediate
The Life of Super-Earths, Dimitar Sasselov, Part One

Keywords:

Steve: You've been quoted as saying that biology is the future of astronomy, so let's start there. What does that mean? Sasselov: Biology is the future of astronomy for two reasons....

Steve:有人引用您的话说,生物学是天文学的未来,所以让我们从这里开始。那是什么意思? Sasselov:生物学是天文学的未来,原因有两个。一是作为一门科学,生物学研究地球上的生命,但我们已经在其他行星上寻找生命,如果你愿意的话,甚至是...


2023-11-11   Video
Squirrel Monkeys and Humans Share a Common Ancestor

Keywords:

[Background Music] >> I mean it's hard not to look at these guys and feel a deep connection. When you look in their eyes, when you see their hands, when you see their little nails, how ...

[背景音乐]>>我的意思是,这很难不看看这些家伙并感受到一种深刻的联系。当你看着他们的眼睛,当你看到他们的手,当你看到他们的小指甲,它们是如何抓的,我的意思是很难不感觉到某种强大的东西连接你。[音乐]但它的力量也是科学的力量在于在解剖学中,...


2023-11-09   Intermediate
The Football Concussion Crisis, Part Four

Keywords:

Phillips: So what does that mean? Is the study of CTE ruining the sport—a line from the play, a discussion that the characters were having. I mean, Harry let me ask you about that. I mean, is...

Phillips:那是什么意思呢?对 CTE 的研究是否破坏了剧中的 sporta 线,这是角色们正在进行的讨论。我的意思是,Harry 让我问你这个问题。我的意思是,承认这种损害是由于足球中不是偶然的,而是足球中故意造成的;我的意思是,足...


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