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听力等级

科学研究   

2023-03-19   Pre-Intermediate
You can Learn While You Sleep

Keywords:

In nineteen twenty-eight, a British scientist made a chance observation.He found that some mold had grown in bacteriain a culture plate in his laboratory.Molds can do that.But this mold that had someh...

1928年,一位英国科学家偶然进行了一次观察。他发现实验室培养板上的细菌中长出了一些霉菌。模具可以做到这一点。但这种不知怎么进入培养皿的霉菌有能力杀死周围的细菌。科学家亚历山大·弗莱明发现,这种霉菌属于一种常见的青霉属。弗莱明和另外两位科学...


2023-03-18   Video
Decoded - What Is a Virus

Keywords:

Viruses are tiny infectious agents that dominate much of the microscopic world. They’re incredibly abundant. There are more viruses in a single drop of seawater than there are people living in New ...

病毒是微小的传染源,主宰着微观世界的大部分。它们非常丰富。一滴海水中的病毒比纽约市的人口还多。地球上的病毒比宇宙中的恒星还多。他们有很多时间变得如此丰富。病毒早在我们之前就存在了。一些科学家认为它们比地球上任何生命都要古老。他们也非常多样化...


2023-03-16   Intermediate
Mary Roach Is Packing for Mars -Ⅱ

Keywords:

Steve: And even before reading your book, I remember thinking "That space station there, that ship they're on, it's so clean. It's so pristine. And they're shaved, they look all together." It...

史蒂夫:甚至在读你的书之前,我记得我就在想“那里的空间站,他们乘坐的那艘船,太干净了。太原始了。他们剃了胡子,看起来都在一起。”在太空中根本不是这样的,对吧?罗奇:是的。我知道,因为我找到了太空舱模拟器研究的那些论文,他们把学生带进来,他们...


2023-03-14   Intermediate
Mary Roach Is Packing for Mars -Ⅰ

Keywords:

Roach: Thank you. I'm sorry I don't have any beverages. I did give thought to serving Tang today; which you have to carry, comes in these large containers, you know, you pack it in the bag an...

罗奇:谢谢。对不起,我没有饮料。我今天确实考虑过为唐服务;你必须携带的东西装在这些大容器里,你知道,你把它装在袋子里,然后你就没有随身携带的东西了。不管怎样,唐并不是美国国家航空航天局发明的;这是他们带上船的现成商业产品。美国国家航空航天局...


2023-03-14   Video
The Black Hole Bomb and Black Hole Civilizations

Keywords:

Black holes are the largest collections of pure violent energy in the universe. If you come too close, they'll devour you and add your energy to their collection. And so, the energy is lost to u...

黑洞是宇宙中最大的纯暴力能量集合。如果你靠得太近,它们会吞噬你,把你的能量添加到它们的收藏中。因此,我们永远失去了能量。是吗?原来有一个宇宙作弊代码。一种为文明提供动力直到万物死亡的方法,或者建造宇宙中最大的炸弹的方法。但是怎么做?我们不是...


2023-03-12   Intermediate
Earthy Exoplanets

Keywords:

Steve: So, before we get to that, let's talk a little bit about another one of the articles in this issue, about Earth-like planets elsewhere out there. And it's such a fascinating subject be...

史蒂夫:所以,在我们开始之前,让我们谈谈本期的另一篇文章,关于其他地方的类地行星。这是一个非常有趣的主题,因为,你知道,直到我们有生之年,还没有办法知道其他恒星是否有行星,现在我们知道,至少有几百颗我们称之为行星的系外行星,我们现在有了新的...


2023-03-10   Intermediate
’Secrets of Our Success’

Keywords:

Steve: So apparently, we're lucky to be here today; we three and the other almost seven billion others on Earth? DiChristina: It's hard to believe isn't it that with almost seven bil...

Steve:很明显,我们今天很幸运能来到这里;我们三个人,以及地球上其他近 70 亿人? DiChristina:很难相信地球上有近 70 亿人,其中数百万人和我们一起生活在纽约市,曾几何时人类几乎灭绝。 Steve:很久很久以前了? ...


2023-03-10   Video
Decoded - What Are Black Holes

Keywords:

Black holes are dark objects in space that have intrigued scientists for centuries. Studying them is like trying to solve a puzzle made of invisible pieces. Black holes hide behind a wide surfa...

黑洞是太空中的暗物质,几个世纪以来一直吸引着科学家。研究它们就像试图解开一个由看不见的碎片组成的谜题。黑洞隐藏在一个被称为事件视界的宽阔表面后面。任何越过事件视界的东西都不会回来。即使是光也无法逃脱黑洞的引力。爱因斯坦在他的广义相对论中向我...


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