쉐도잉 연습: Everything You Didn't Know About Fluorescent Animals - YouTube로 영어 말하기 배우기

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Inside this box is...
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Inside this box is...
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The skull of a rat.
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If I place this rat skull underneath a UV blacklight, nothing will happen.
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But I have another skull, and something different will happen with this one.
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This is a squirrel skull.
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And if I place this skull under a UV black light, something very unusual happens.
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Ultraviolet light hits the squirrel skull and is absorbed by special compounds called porphyrins.
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After absorbing the UV light, the porphyrins gain a ton of energy, which they release as a different kind of light.
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Notice how the released light has a longer wavelength than the UV light.
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That means instead of being invisible UV light, it's visible light.
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That's pink.
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Here's what the rat skull looks like.
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This is what most bones look like under a a UV light.
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But here's what a squirrel skull looks like.
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It's pink.
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When things do this, we say they're fluorescent.
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Squirrels are fluorescent pink under UV lights.
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Well, just their insides, actually.
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But there are many other fluorescent animals that glow on the outside.
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To find our next fluorescent animal will take a trip to the desert.
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Ah, what a nice view.
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What was that?
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Over there.
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A scorpion.
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Now, if we place a scorpion under a UV blacklight, Just like the squirrel, something unusual happens.
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Ultraviolet light hits the scorpion's exoskeleton, is absorbed, then released back into the world at a different wavelength that we can see.
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This is just like the squirrel skulls, but there's one big difference.
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Notice how the light released by the scorpion has a shorter wavelength than the light released by the squirrel.
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Well that means instead of glowing pink like a squirrel skull the scorpion will glow a different color.
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It's green.
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There aren't any scorpions that live around me but I bet we can still find some fluorescent animals outside using this.
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This is a special flashlight.
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Take a look at the top.
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You see those bulbs?
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Those are a bunch of UV light bulbs.
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This is a UV flashlight.
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So let's go outside and search for some fluorescent animals.
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It's nighttime.
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Let's search in this forest.
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You never know what you'll find out here at night.
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So I found a few very fluorescent animals.
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We'll start with this one.
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This is a caterpillar.
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But what kind?
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Notice the white slashes on the caterpillar's side.
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They kind of go right up to the caterpillar's spiracles, those holes that they breathe out of.
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Then, look here on the end.
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There's a long extension on the caterpillar's backside Like a horn, almost If you come across a caterpillar with white slashes And a long horn on its rear end It's likely
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A tobacco hornworm caterpillar These can eat up your tomato plants throughout the summer But this was the star of the walk.
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No other plant glowed like this in the entire forest.
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So what plant is it?
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Alright, I got it.
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So notice how the leaf is shaped like a heart.
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All of the veins start at one point, and the surface of the leaf is kind of shiny and waxy.
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This is a vine called Smilax.
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But there's something strange about this fluorescence.
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Can you tell what it is?
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Squirrel skulls, scorpions, hornworms, they fluoresce everywhere.
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But Smilax only fluoresces in some places.
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Let's take a closer look.
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Do you notice how the most fluorescent parts of the leaf are the veins?
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Smilax doesn't have fluorescent compounds all over its entire surface, like a scorpion.
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Instead, its fluorescent compounds are concentrated in its veins.
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And that's why it looks like a Jackson Pollock painting.
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All of these organisms are naturally fluorescent.
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But scientists have created fluorescent animals too.
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To find out how, we'll take a trip into the ocean.
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This is a crystal jellyfish.
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Inside these jellyfish are a bunch of special proteins that fluoresce.
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of like porphyrins on squirrels.
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So under a UV light, crystal jellyfish naturally glow green.
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In the 1990s, scientists looked at the crystal jelly's DNA and found the specific sequence that made those special glowing proteins.
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Then they cut it out and added it into the DNA of...
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a zebrafish.
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Normal zebrafish look like this under a UV light.
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But the new fish that they created with a tiny bit of jellyfish DNA looked like this.
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It glowed green.
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The scientists had created a brand new fluorescent green fish.
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Naturally, they were very excited, so they did the same thing with fluorescent coral and sea anemones.
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They sliced out pieces of of their DNA and put them into fish.
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So the fish fluoresced too.
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And that's how they created fluorescent fish that look like this.
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이 비디오로 말하기 연습을 해야 하는 이유는?

이 비디오는 형광动物에 대한 흥미로운 정보를 제공합니다. 그로 인해 학습자는 특정 주제에 대해 깊이 있게 이야기를 나눌 수 있는 기회를 갖게 됩니다. 예를 들어, 동물의 생리학이나 빛의 성질에 대한 질문을 통해 영어 회화 연습이 가능해집니다. 이러한 주제로 대화하면 토픽에 대한 지식이 증가할 뿐만 아니라, 어휘력과 표현력을 향상시킬 수 있습니다. 비디오의 내용은 실제로 대화에서 자주 사용되는 주제이므로 실생활에서도 유용하게 활용될 수 있습니다. 영어 쉐도잉을 통해 발음과 억양도 개선할 수 있는 기회입니다.

문맥 속의 문법 및 표현

비디오에서는 다음과 같은 주요 문법 구조 및 표현이 사용됩니다:

  • “If I place this rat skull underneath a UV blacklight, nothing will happen.”: 이 문장은 조건문을 사용하여 사실을 제시하는 기법입니다. 영어 회화에서 조건문은 중요한 구조이므로 익혀두면 좋습니다.
  • “After absorbing the UV light, the porphyrins gain a ton of energy.”: 이는 과거 완료형을 사용한 문장으로, 특정 사건이 발생한 후의 결과를 설명할 때 유용합니다.
  • “To find our next fluorescent animal will take a trip to the desert.”: 이 문장은 미래를 계획하는 상황에서 사용되는 표현으로, 영어 쉐도잉 연습에 매우 적합한 구조입니다.

일반적인 발음 함정

비디오에서 몇 가지 발음이 특히 어려울 수 있습니다. 예를 들어, "fluorescent"는 많은 학습자들에게 어려운 단어일 수 있습니다. 이 단어는 'floo-RES-uhnt'로 발음하며, 강세가 중간 부분에 얹혀 있다는 점에 유의해야 합니다. 또 다른 예로, "exoskeleton"의 발음은 'EK-so-SKEL-uh-tuhn'으로, 각 음절의 발음을 분명하게 연습하는 것이 중요합니다. 이러한 단어들은 IELTS 스피킹 준비에도 유용하게 쓰일 수 있습니다.

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

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