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听力等级

科学研究   

2023-12-27   Intermediate
The Curiosity Rover Landed on Mars, Part Three

Keywords:

Botman: Can you tell us at what time Curiosity touched down, Earth received time, and at what time the first image came back? Steltzner: I can tell you the first of those is 10:39 P.M.; the ...

博特曼:您能告诉我们好奇号在什么时候着陆,地球在什么时候接收到时间,以及第一张图像是在什么时候回来的吗? Steltzner:我可以告诉你,第一个是晚上 10:39;第二个我没有。 Amanda:来自 Scholastic 的 Aman...


2023-12-27   Video
The Origins of Human Color Vision

Keywords:

It's estimated that a typical pair of human eyes can see hundreds of different colors. But 23 million years ago, our primate ancestors were red-green color blind. So, how did we come to...

估计 那是一对典型的 的人眼可以看到 数百种不同的颜色。 但在 2300 万年前, 我们的灵长类祖先是 红绿色盲。 那么,我们是怎么拥有 我们今天拥有丰富的色觉? [ 音乐 ] 我在西雅图见面 ...


2023-12-25   Intermediate
The Curiosity Rover Landed on Mars, Part Two

Keywords:

Steve: Cook introduces Adam Steltzner, who was in charge of actually landing the Rover on Mars. Cook: Dr. Steltzner has been the father and the mother and everything in between of ...

Steve:库克介绍了 Adam Steltzner,他实际上负责将漫游者送上火星。 Cook:Steltzner 博士一直是我们构建的着陆系统的父亲和母亲,以及介于两者之间的一切,当然,这是他最大的支持者。我记得他们去看评论,他说,“嘿...


2023-12-25   Video
What Would Happen If the Moon Fell to Earth

Keywords:

What if the Moon suddenly began getting closer to Earth? To the point where it was on a collision course with our planet? This is WHAT IF, and here's what would happen if the Moon fell t...

如果月亮突然 开始离地球越来越近了? 到了它在 与我们的星球相撞? 这就是 WHAT IF, 以下是将要发生的事情 如果月球坠落到地球上。 月球是地球上唯一的天然卫星, 也是照亮我们夜空的最大天体。 ...


2023-12-23   Intermediate
The Curiosity Rover Landed on Mars, Part One

Keywords:

Elachi: Well, tonight was a great drama that was played. I felt like an adventure movie, but in reality, I kept telling myself, "This is real. This is the real what's happening." And what a fa...

Elachi:嗯,今晚上演了一场精彩的戏剧。我觉得自己像一部冒险电影,但实际上,我一直在告诉自己,“这是真的。这才是真实发生的事情。你知道,这是多么精彩地展示了我们的国家和我们的机构可以做些什么。我只能想起我坐在那里的泰迪·罗斯福 (Ted...


2023-12-23   Video
How To Terraform Venus

Keywords:

Leaving earth to find new homes in space is an old dream of humanity and will sooner or later be necessary for our survival. The planet that gets the most attention is Mars, a small, toxic and...

离开地球在太空寻找新家是 人类的旧梦,迟早或 以后成为我们生存的必要条件。地球 最受关注的是火星,一个小的, 有毒和能源贫乏的星球 对于一群沮丧的人来说似乎已经足够好了 人类挤在地下城市里。 但是,如果我们把眼...


2023-12-22   Pre-Intermediate
About a Mystery as Old as Time, Part Two

Keywords:

Each month was 30 days.Then, they divided each day into 24 equal parts,or hours.They divided each hour into 60 minutes,and each minute into 60 seconds.Humans have used many devices to measure time.The...

每个月是 30 天。然后,他们将每天分成 24 个相等的部分或小时。他们将每个小时分为 60 分钟,将每分钟分为 60 秒。人类已经使用许多设备来测量时间。日晷是最早和最简单的日晷之一。日晷测量太阳每天在天空中的运动。它有一根棍子或其他物体...


2023-12-21   Intermediate
What a Plant Knows, Daniel Chamovitz, Part Five

Keywords:

Steve: So, what is it you said in the book? You have how many MDs in your family--six to seven? Chamovitz: Six, and two on the way. Steve: Two are your sons? Chamovitz: No, not ...

Steve:那么,你在书中说了什么?您家里有多少 MD — 6 到 7 个? Chamovitz:六次,还有两次在路上。 Steve:两个是你的儿子? Chamovitz:不,不是我的。我的侄女和我表弟的一个孩子。 Steve:所以...


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