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听力等级

教育学习   

2023-08-14   Pre-Intermediate
Massive Open Online Courses, Part One

Keywords:

The movement toward education by computer is developing fast.Massive Open Online Courses, called MOOCs, are changing how people learn in many places.For years,people could receive study materials from...

计算机教育运动发展迅速。大规模开放在线课程,即MOOCs,正在改变人们在许多地方的学习方式。多年来,人们可以从学院或大学获得学习材料,并参加在线课程。但这些课程并不像MOOC那样一次为成千上万的学生设计。MOOCs提供的课程材料可以为那些远...


2023-08-13   Video
Photosynthesis- Part 1- Overview

Keywords:

[SCRIBBLING] SPEAKER: Almost all life on Earth is solar powered.$#10320#$10320#$ Plants, algae, and some bacteria capture light energy from the sun and convert it to chemical energy in ...

[涂鸦]演讲者:几乎所有的生活地球上的太阳能$#10320#$10320#$植物、藻类和一些细菌捕获光能从太阳和转换它转化为化学能在一系列反应中称为光合作用$#10320#$10320#$这些生物产生碳水化合物从简单的构建块比如水和二氧化碳...


2023-08-01   Video
Think Like a Scientist - Gorongosa

Keywords:

GREG CARR: I flew over Gorongosa. I'm looking down, and it's magnificent. There's a great lake in the center of the ecosystem. There's rivers. There's a mountain with a rainforest. ...

格雷格·卡尔:我飞了 在戈龙戈萨上空。 我往下看, 而且它很壮观。 有一个大湖 生态系统的中心。 有河流。 有一座山 与热带雨林。 栖息地非常壮观。 但从空中,我可以 没有看到一只动物。 ...


2023-07-28   Video
Identifying the Key Genes for Regeneration

Keywords:

ALVARADO: Imagine that somebody came and told you that there were animals whose heads could be decapitated, and that, in the span of a short period of time, these heads would begin to grow again from ...

阿尔瓦拉多:想象一下,有人来告诉你,有些动物的头可以被斩首,而且在很短的时间内,这些头会开始从刚刚失去头的动物身上重新长出来。 我会说,是的,那是 伟大的科幻小说。 但后来,事实证明,许多 外面的动物实际上可以 执行此...


2023-07-24   Video
What is CRISPR

Keywords:

[Jennifer Doudna:] Science is a serendipitous endeavor. We're exploring nature and trying our best to get at the truth. And every now and then, we're surprised. [Ethan Bier:] When I first hear...

[詹妮弗·杜德纳:]科学是偶然的 努力。我们正在探索自然并尝试 我们尽最大努力了解真相。每时每刻 然后,我们感到惊讶。 [伊桑·比尔:]当我第一次听到它时,我想 这好得令人难以置信,因为,你知道的, 我的 作为遗传...


2023-07-20   Intermediate
Nobel Laureate and Molecular Biologist Peter Agre - Ⅳ

Keywords:

Steve: Secretary of Energy. Agre: That's right, Secretary of Energy, Nobel Laureate; John Holdren, presidential science advisor; Harold Varmus, Eric Lander of the President's Commit...

史蒂夫:能源部长。阿格雷:没错,能源部长,诺贝尔奖获得者;约翰·霍尔德伦,总统科学顾问;哈罗德·瓦姆斯,总统科学技术委员会的埃里克·兰德。所以我认为我们在白宫有智慧科学的代表。议程主要集中在其他问题上,但我认为我们必须小心,不要出现左翼或右...


2023-07-18   Intermediate
Nobel Laureate and Molecular Biologist Peter Agre - Ⅲ

Keywords:

Steve: You seriously considered a Senate run, a United States Senate run. Agre: Well, I was serious. I'm not sure everybody else was serious. This was the Minnesota Senate seat occu...

史蒂夫:你认真考虑过参议院竞选,美国参议院竞选。阿格雷:嗯,我是认真的。我不确定其他人都是认真的。这是诺曼·科尔曼(Norman Coleman)占据的明尼苏达州参议院席位。史蒂夫:对。阿格雷:他最初是圣保罗非常有效的民主党市长;当他被说服...


2023-07-16   Intermediate
Nobel Laureate and Molecular Biologist Peter Agre - Ⅱ

Keywords:

Steve: But in that research you found that because you were very interdisciplinary you've talked to other people… Agre: It's called attention deficit. Steve: But you found...

史蒂夫:但在那项研究中,你发现,因为你非常跨学科,所以你和其他人交谈过…阿格雷:这叫做注意力缺陷。史蒂夫:但你发现你仍然必须保护你的研究优先权,所以我认为这对任何真正从事研究的人来说都很有趣。你如何通过分享你的想法和结果与人们进行非正式的合...


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