跟读练习: The Day the Dinosaurs Died – Minute by Minute - 通过视频学习英语口语
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One of the greatest illusions in life is continuity.
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66 million years ago, the continuity of the dinosaurs had been going on for around 165 million years already,
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and it didn't seem this would change any time soon.
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The world was warm and pleasant, and most of the land was covered with lush forests and an incredible diversity of trees,
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flowers, ferns, and trillions of critters.
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Dinosaurs were ubiquitous and had diversified into hundreds of species of all shapes and sizes.
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Titanotaurs, large gentle giants, shared the world with famous beasts like Tyrannosaurus rex or Edmontosaurus.
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Pectinodon hunted in the undergrowth, while Edmontosaurus wandered coastlines and swamps.
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An ancient paradise, a world of plenty, full of life.
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66 million years ago, maybe on a Tuesday afternoon, life was the same as it had been the day before, or a thousand years before,
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or pretty much a million years before.
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Things were good for our feathered dinosaur buddies until a tiny, tiny detail in the sky changed.
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If there were dinosaurs watching the stars, one night they may have noticed the appearance of a new star,
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a tiny dot that for many weeks slowly became bigger and brighter.
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Until one fateful day, it looked like another small moon in the night sky.
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Then it faded from sight as it dipped into Earth's shadow.
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For a few more hours, the illusion of continuity was upheld.
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Until it was not anymore.
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In the morning, the object suddenly appears again.
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Now, almost as large as the sun in the sky and growing every moment, heading for the coast near the Yucatan Peninsula.
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It takes the asteroid only seconds to pass through the thin layer between space and the ground to make contact.
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as it enters the atmosphere at almost 60 times the speed of sound.
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Let's stop time.
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Here, we see the unnamed asteroid about to commit specieside.
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Larger than Mount Everest, it reaches from the ocean high into the atmosphere, higher than passenger planes would fly millions of years later.
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At this moment, the world was one way.
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In a fraction of a second, it would be fundamentally different.
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Let's make the transition.
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As the asteroid hits the shallow ocean and the bedrock below,
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the energy of billions of nuclear weapons is released all at once as the asteroid vaporizes.
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A flash of light illuminates the sky as an eerie bright white sphere grows over the Gulf of Mexico.
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Bedrock melts into seething hot plasma at tens of thousands of degrees Celsius.
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The thermal radiation from the explosion travels at the speed of light
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and immediately burns everything within a radius of about 1,500 kilometers, while the energy from the impact pushes so hard against Earth's crust
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that it loses all strength and flows away from the impact site like a liquid,
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creating a hole 25 kilometers deep and 100 kilometers wide.
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The ocean is pushed back for hundreds of kilometers, like when a kid jumps into a puddle.
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As the crust bounces back, melted and flowing crust forms a temporary mountain stretching 10 kilometers into the sky.
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An incredible amount of material is blasted into the higher atmosphere, or even out into space, as much as 60 times the original mass of the asteroid.
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The violence of the strike is felt everywhere on Earth within minutes.
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A magnitude 11 earthquake may be the most powerful quake any living thing has ever witnessed in billions of years.
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It is so insanely strong that in India it might have shaken gigantic lava fields
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and causes volcanic eruptions that would last for 30,000 years and cover half of the Indian subcontinent with lava.
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Even on the side of Earth opposite the impact, the ground still moved by several meters.
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Nobody would sleep through this day.
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The gigantic explosion crashes against the atmosphere with unprecedented violence
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and causes a shockwave that reaches speeds of more than 1,000 km per hour near the site of impact,
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similar to the hyper-hurricanes on gas giants like Neptune.
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In middle America, basically any soil, vegetation or animal is just shredded into pieces and catapulted thousands of kilometers away.
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Now, the previously displaced oceans return.
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As the temporary mountain at the site of impact collapses, a ring of tsunamis as high as one kilometer, enough to cover all skyscrapers humans would ever build, heads in all directions.
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As they crash into the coasts of the continents surrounding the impact, they will drown thousands of kilometers of coastline of coastline.
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Fifteen hours later, some of the waves
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that get refracted around South America will still tower as much as 100 meters into the sky.
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But we still haven't talked about the worst thing yet.
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A lot of the debris yeeted into space will orbit Earth for thousands of years.
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Some may hit the Moon or even Mars.
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But most of it comes right back.
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When things fall through the atmosphere at such speeds, they get very hot.
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As in hundreds of degrees And this happens to millions of tons of material everywhere.
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This rapidly heats up the atmosphere to insane temperatures.
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We don't know exactly how hot it got or how long this heat shock lasted, but there are two ideas here.
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Either the air was heated to hundreds of degrees for a few minutes, or to thousands of degrees for around one minute.
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In any case, the air became as hot as the inside of an industrial oven.
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How bad the global effects of this were is contested, but if enough heat reached the surface,
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a lot of plants and animals would have died very quickly if they couldn't bury themselves or escape into caves.
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The heat, together with raining debris, also may have ignited material on forest floors and sparked wildfires, as the Earth rotated under the searing hot glue.
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In a few hours, massive wildfires were probably burning around the globe.
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Some of them may have lasted for months and turned Earth into a horrifying, hot, hellish version of itself.
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As the day of the impact draws to an end, many of the dinosaurs are already dead, but the worst is still to come.
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The gigantic plume of vaporized material reaches the upper atmosphere and spreads around the whole globe.
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Together with the soot from the burning planet and the aerosols generated at impact, the planet sinks into a deep darkness,
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with only the remaining raging fires illuminating the scenery.
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Whatever plants survive the firestorms will now be starved for sunlight as global photosynthesis is temporarily shut down.
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Within days, temperatures crash as much as 25 degrees Celsius.
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The oceans were especially hard hit.
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The lack of sunlight killed over 90% of plankton, which formed the basis of the food web of marine life.
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Ultimately, this would kill off the large marine reptiles and ammonites that used to dominate the seas.
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The biosphere that survivors now find themselves in is like an alien landscape.
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Ash, debris and the burned remains of the formerly lush and blooming life cover the ground.
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The sky is dark and it's cold and fresh food is scarce while fungi thrive.
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For months and years, the planet will be a hostile and deadly place.
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The sudden global winter will last for decades.
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At least 75% of all species on Earth will just vanish from existence.
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And so, as the day ends, the world is suddenly different.
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The continuity that went on for millions of years is no more.
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The era of the dinosaurs is over.
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Just like that.
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Eventually, from the ashes of the old world, survivors emerged.
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Birds that are the direct descendants of the dinosaurs and mammals that would eventually become the dominant animals on the planet.
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Without the asteroid, who knows what life on Earth would look like today?
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Without the sudden disruption of dinosaur continuity that completely changed the planet and all life on it,
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we might have never had the opportunity to become what we are today.
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It's not clear how long the human era will last.
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So far, modern humans have been around for 0.1% of the time the dinosaurs were.
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And in this short amount of time, we've achieved impressive feats, from making the world our own, to reaching space and splitting the atom.
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Yet, our future and our long-term survival are not a given.
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If we're not careful, it could end in an instant, like the age of the dinosaurs end it.
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But in contrast to them, we know that our continuity is fragile, even if it doesn't feel like it.
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We can be prepared, and be vigilant, and hopeful.
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If we're lucky, our journey will go on for a long, long time.
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Speaking of journeys, we want to address something in the spirit of transparency.
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Kvadsgesagt has changed in the last two years.
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We've become more than a YouTube channel or animation studio
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and now also run a paper shop that sells hundreds of thousands of calendars, posters and notebooks.
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That's not a happy accident.
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Many of us have a background in graphic design.
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Paper products are our roots and we actually started out creating posters, books and print infographics.
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We love that you can touch them, smell them, nerd about small details and printing techniques.
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Just like the channel, we started small and without great ambition.
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Step by step, we found the right printers and papers, learned about shipping and expanded our shop.
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We put a huge amount of research, love and hours into it, because this is the only way we know how to do things.
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We don't just want to make generic merch, we want to make things that fit our mission of making science exciting and creating beautiful things.
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Things that persist and are made with high quality and love.
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Our shop gives us another outlet to do this
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and as a nice side effect has turned into our main source of income For everything we do on this channel,
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which also keeps us independent and our videos free for everyone
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So we want to build further on that and create more things
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that last We've just started a new notebook line called pocket log
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that will expand on in the future The first edition is a dinosaur themed collection
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that will hopefully serve a future paleontologist well There are loads of plans for sciency stuff, more journals and calendars and infographics.
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Let us know what you would like us to make for your room, kids, classrooms and yourself.
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In the end, the things we do work because you like them
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and because you enable us to put thousands of hours into videos and hundreds of hours into posters and journals.
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Thank you so much for that.
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We're looking forward to making fun, science-y stuff for you, no matter if it's a video, a poster, or something else entirely.
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Thank you for watching.
为什么要通过这个视频练习口语？
观看和练习这段视频可以帮助你提高英语口语能力，特别是当你通过演讲内容进行雅思口语练习时。这段视频的叙述描绘了恐龙灭绝的情景，内容生动而具冲击力，能够激发学习者的想象力和表达欲望。在这样紧张而富有情感的背景下练习口语，有助于增强你的语言反应能力和流利度。此外，学习如何描述历史事件中的细节，有助于丰富你的词汇并改进叙述技巧。
语法与表达在语境中的应用
在视频中，有几个关键的语法结构和表达方式可以为学习者提供借鉴：
- 过去完成进行时：“六千六百万年前，恐龙的连续性已经持续了大约一亿六千五百万年。” 这个句子展示了如何表达一个过去某一时间点之前曾经发生的事情。
- 比较级：“比其他生物更常见的恐龙…” 这种结构帮助学习者进行比较，强化了对比和描述技巧。
- 被动语态：“物体被抛回…” 被动语态在叙述中占有重要地位，学习者运用被动语态可以更好地侧重于动作的承受者。
- 短语动词：“进入大气层…” 了解和掌握短语动词的使用，可以帮助你在口语交流中更显自然。
常见发音陷阱
在视频中，有些词汇和发音容易引起混淆：
- “asteroid” （小行星）：要注意发音中的重音和元音变化，以避免口语交流中的误解。
- “explosion”（爆炸）：这个词包含多个音节，练习时要注意每个音节的清晰发音。
- “shadows”（阴影）：特别是与“shadow speak”（影子演讲）结合使用时，要确保清晰的发音，以传达正确的意思。
通过这些练习和分析，你将能够在英语口语练习中更自信地表达，更准确地传达你想要的内容。记得在练习中反复听、说和模仿，这样会提高你的英语口语能力，助力于雅思口语的取得好成绩。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。