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听力等级

科学研究   

2022-01-20   Intermediate
The Inevitability Of Cancer's Commonality

Keywords:

You have a quote in the article, "in one sense cancer is a side effect of evolution." So, that's pretty interesting. What exactly does it mean? Carl: Well, it means that the way that our bodies are b...

你在文章中引用了一句话,“从某种意义上说,癌症是进化的副作用。所以,这很有趣。这到底是什么意思? Carl:嗯,这意味着我们身体的构造方式和进化方式使癌症几乎成为不可避免的副产品。我们有这些由数万亿个细胞组成的大天体,只有它们都合作才能工...


2022-01-20   Video
DNA Transcription (Advanced Detail)

Keywords:

The central dogma of molecular biology, DNA makes RNA makes protein. Here the process begins. Transcription factors assemble at a specific promoter region along the DNA. The length of DNA follow...

分子生物学的中心教条,DNA 使 RNA 产生蛋白质。 这是过程 开始。 转录因子沿着 DNA 组装在特定的启动子区域。 DNA 的长度 启动子后面是一个基因,它包含蛋白质的配方。 出现一个介质蛋白复合物,携带 RNA 聚合酶。 它...


2022-01-19   British English
What Ate Dinosaurs

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What ate dinosaurs? Old crocs. Even in their heyday, dinosaurs were not quite as dominant as popular myth makes them out to be. ONE answer to the question, “What ate dinosaurs?” is, obviously, “Oth...

谁吃了恐龙 古鳄鱼 即便是在全盛时期,恐龙并非像民间传说所理解的那样占绝对统治地位 “谁吃恐龙”很明显,其中一个答案是:“其它恐龙”每个史前怪兽爱好者的脑海里浮现出的是像霸王龙、翼龙这样的兽脚类掠食者,电脑制作的它们与梁龙、剑龙的...


2022-01-16   Intermediate
Rampaging Robots & Komodo Dragons

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Hey Dan, thanks for talking to us today. Dan: Thanks for having you me Steve. Steve: You have got your PhD in robotics from Carnegie Mellon. So, what did you do your actual research on for your doct...

您好 Dan,感谢您今天与我们交谈。 Dan:谢谢你邀请你,Steve。 Steve:您从卡内基梅隆大学获得了机器人学博士学位。那么,您在攻读博士学位时实际做了什么研究呢? Dan:无处不在的计算。所以,这就是这个想法 - 人们与计算...


2022-01-14   Intermediate
Talk with Nobel Laureate Harold Varmus

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Dr. Varmus, great to talk to you today. Dr. Varmus: Thank you very much. Nice to see you. Steve: Tell me about the Hamilton Project. What is it? How did you get involved with it and why? Dr. Varmus...

Varmus 博士,很高兴今天与您交谈。 Dr. Varmus:非常感谢。很高兴见到你。 Steve:跟我说说 Hamilton 项目吧。这是什么?您是如何参与其中的,为什么? Varmus 博士:我之所以参与其中,是因为我接到 Bo...


2022-01-14   Video
DNA Transcription (Basic Detail)

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What you are about to see is DNA's most extraordinary secret. How a simple code is turned into flesh and blood. It begins with a bundle of factors assembling at the start of a gene. A gene is simply a...

你即将看到的是 DNA 最不寻常的秘密。 简单的代码是如何变成有血有肉的。 它始于基因开始时组装的一组因子。 基因只是一段向左延伸的 DNA 指令。 组装的因子触发该过程的第一阶段 - 引出制造蛋白质所需的信息。 一切都准备好了! 3-2-...


2022-01-12   Intermediate
The Science of Bird Song

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Dr. Slabbekoorn, nice to talk to you today. Dr. Slabbekoorn: How are you doing? Steve: Good, tell me about this bird song study, very interesting. What did you actually do and what were you looking ...

Slabbekoorn 博士,很高兴今天与您交谈。 Dr. Slabbekoorn:你最近怎么样? Steve:很好,跟我说说这个鸟鸣研究吧,非常有趣。你实际上是做什么的,你在寻找什么? Dr. Slabbekoorn:嗯,我所做的是...


2022-01-10   Video
X Inactivation

Keywords:

The cells start off as a female with two X chromosomes. The cell divides and the embryo is getting slightly bigger and still each cell has both X chromosomes active, but in early embryogenesis eac...

这些细胞开始时是具有两条 X 染色体的女性。 细胞分裂,胚胎 稍微变大,每个细胞仍然有两条 X 染色体活跃,但在早期 胚胎发生 每个细胞都会使它的一个 X 失活,一个细胞将留在父系 X 是主动的,而另一个是母体的。而现在这个过程将随机...


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