쉐도잉 연습: Is Anything Real? - 영상으로 영어 말하기 배우기
레슨 만드는 중...
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Hey, Vsauce, Michael here.
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Where are your fingers?
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Seriously, it's a pretty easy question.
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You should be able to answer it.
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But how do you know?
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How does anyone know anything?
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You might say, well, I know where my fingers are.
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I'm looking right at them.
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Or, I can touch them.
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I can feel them.
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They're right here.
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And that's good.
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Your senses are a great way to learn things.
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In fact, we have way more than the usual five senses we do talk about.
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For instance, your kinesthetic sense, proprioception.
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This is what the police evaluate during a field sobriety test.
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It allows you to tell where your fingers and arms
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and head and legs and your body is all in relation to each other without having to look or touch other things.
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We have way more than five senses.
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We have at least twice as many and then some.
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But they're not perfect.
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There are optical illusions, audio illusions, Temperature, sensation illusions, even tactile illusions.
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Can you turn your tongue upside down?
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If so, perfect.
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Try this.
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Run your finger along the outer edge of the tip of your upside down tongue.
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Your tongue will be able to feel your finger but in the wrong place.
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Our brains never needed to develop an understanding of upside down tongue touch.
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So when you touch the right side of your tongue, when it's flipped over to your left side, you perceive a sensation on the opposite side where your tongue usually is,
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but isn't when it's upside down.
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It's pretty freaky and cool and a little humbling because it shows the limits of the accuracy of our senses.
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The only tools we have to get what's out there in here.
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The philosophy of knowledge, the study of knowing, is called epistemology.
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Plato famously said that the things we know are things that are true, that we believe, and that we have justification for believing.
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Those justifications might be irrational or they might be rational, they might be based on proof,
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but don't get too confident because proven is not a synonym for true.
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Luckily, there are things that we can know without needing proof, without needing to even leave the house, things that we can know as true by reason alone.
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These are things that we know a priori.
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An example would be the statement, all bachelors are unmarried.
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I don't have to go survey every bachelor on earth to know that that is true.
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All bachelors are unmarried because that's how we define the word bachelor.
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Of course, you have to know what the words bachelor and unmarried mean in the first place.
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Oh, you do?
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Okay, perfect, that's great.
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But how do you know?
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This time I mean functionally.
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How do you know?
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Where is knowledge biologically in the brain?
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What are memories made out of?
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We are a long way from being able to answer that question completely, But research has shown that memories don't exist in the brain in single locations.
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Instead, what we call a memory is likely made up of
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many different complex relationships all over the brain between lots of brain cells, neurons.
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A major cellular mechanism thought to underlie the formation of memories is long-term potentiation or LTP.
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When one neuron stimulates another neuron repeatedly,
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that signal can be enhanced over time wiring them more strongly together and that connection can last a long time,
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even an entire lifetime.
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A collection of different brain cells,
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neurons that fire together in a particular order over and over again frequently and repeatedly can achieve long-term potentiation,
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becoming more sensitive to each other and more ready to fire in the exact same way later on in the future.
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They're a physical thing in your brain firing together more easily because you strengthened that pattern of firing.
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You memorized.
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This branching forest of firing friends looks messy, but look closer.
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It could be the memory of your first kiss, a living souvenir of the event.
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If I were to go into your brain and cut out those cells, could I make you forget your first kiss?
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Or could I make you forget where your fingers are?
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Only if I cut out a lot of your brain.
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Because memories aren't just stored in one relationship, they're stored all over the brain.
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The events leading up to your first kiss are stored in one network, the way it felt or the way it smelled in different networks,
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all added up together, making what you call the memory of your first kiss.
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How many memories can you fit inside your head?
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What is the storage capacity of the human brain?
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The best we can do is a rough estimate, but given the number of neurons in the brain involved with memory
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and the number of different connections a single neuron can make,
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Paul Rebber at Northwestern University estimated that we can store the digital equivalent of about 2.5 petabytes of information.
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That's the equivalent of recording a TV channel continuously for 300 years.
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That's a lot of information.
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That is a lot of information about skills you can do and facts and people you've met, things in the real world.
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The world is real, right?
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How do you know?
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It's a difficult question, but it's not rocket science.
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Instead, it is asking whether or not rocket scientists even exist in the first place.
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The theory that the Sun moved around the Earth worked great.
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It predicted that the Sun would rise every morning and it did.
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It wasn't until later that we realized what we thought was true might not be.
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So do we or will we ever know true reality?
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Or are we stuck in a world where the best we can do is be approximately true,
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discovering more and more useful theories every day but never actually reaching true objective actual reality.
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Can science or reason ever prove convincingly that your friends and YouTube videos and your fingers actually exist beyond your mind?
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That you don't just live in the matrix?
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No. Your mind is all that you have.
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Even if you use instruments like a telescope or particle accelerators,
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the final stop for all of that information is ultimately you.
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You are alone in your own brain, which technically makes it impossible to prove that anything else exists.
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It's called the egocentric predicament.
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Everything you know about the world out there depends on and is created inside your brain.
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This mattered so much to Charles Sanders Pierce that he drew a line between reality, the way the universe truly is,
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and what he called the Phaneron, the world as filtered through our senses and bodies, the only information we can get.
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If you want to speak with certainty, you live in, that is you react to and remember and experience your Phaneron, not reality.
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The belief that only you exist and everything else,
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food, the universe, your friends are all figments of your mind is called solipsism.
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There is no way to convince a solipsist that the outside world is real.
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And there is no way to convince someone who doubts
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that the universe wasn't created just three seconds ago along with all of our memories.
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It's a frightening realization that we don't always know how to deal with.
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There's even the Matrix defense.
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In 2002, Tonda Lynn Ansley shot and killed her landlady.
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She argued that she believed she was in the Matrix, that her crimes weren't real.
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By using the Matrix defense,
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she was found not guilty by reason of insanity because the opposite view is just way more healthy and common.
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It's called realism.
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Realism is the belief that the outside world exists independently of your own Phaneron.
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Rocks and stars and Thora Birch would continue to exist even if you weren't around to experience them.
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But you cannot know realism is true.
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All you can do is believe.
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Martin Gardner, a great source for math magic tricks,
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explained that he is not a solipsist because realism is just way more convenient and healthy and it works.
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As to whether it bothered him that he could never know realism was true,
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he wrote, If you ask me to tell you anything about the nature of what lies beyond the Phaneron, my answer is, how should I know?
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I am not dismayed by ultimate mysteries.
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I can no more grasp what is behind such questions as
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my cat can understand what is behind the clatter I make while I type this paragraph.
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Humble stuff.
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What strikes me is the cat.
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Cats do not understand keyboards, but they know that keyboards are a fun place to be.
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It's a great way to get the attention of a human.
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They're warm and exciting, surrounded by noises and flashing lights.
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Plus, cats love to get their scent on whatever they can, a mark of their existence.
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We aren't that much different, except instead of keyboards, we have the mysteries of the universe.
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We will never be able to understand all of them.
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We won't be able to ever answer every single question, but walking around in those questions, exploring them, is fun.
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It feels good.
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And as always, thanks for watching.
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Do you want more unanswered questions?
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Well, you're in luck.
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Today, nine other amazing channels on YouTube have made videos about questions we still haven't fully answered.
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AllTimeTens has organized them
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and to watch them all click the annotation at the end of this video
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or the link at the top of the description.
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Enjoy.
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이 레슨의 어휘와 말하기 포인트
이 C1 수준 말하기 레슨은 영상 “Is Anything Real?”을(를) 바탕으로 합니다. 가장 자주 반복되는 단어는 다음과 같습니다: brain, finger, exist, neuron, tongue. 이 영상에는 섀도잉할 문장 139개와 단어 1598개가 있습니다. 말하는 구간의 길이는 11:17입니다. 화자는 분당 약 142단어의 일정한 속도로 말해서 섀도잉하기에 편한 속도입니다. 단어의 84%가 영어에서 가장 많이 쓰이는 3,000단어에 속합니다. 나머지는 연습 전에 미리 확인해 두세요.
이 영상의 핵심 어휘
영상에서 가장 어려운 단어 15개를 발음, 뜻과 함께 정리했습니다.
| 단어 | 발음 | 뜻 |
|---|---|---|
| neuron 명사 | /ˈn(j)ʊɹɑn/ | 신경 세포 |
| bachelor 명사 | /ˈbæt͡ʃ.ə.lə(ɹ)/ | 학사 |
| illusion 명사 | /ɪˈl(j)uːʒ(ə)n/ | 환상 |
| justification 명사 | /ˌd͡ʒʌstɪfɪˈkeɪʃən/ | 정당화 |
| sensation 명사 | /sɛnˈseɪʃən/ | 감각 |
| annotation 명사 | /ˌæn.əˈteɪ.ʃən/ | 주해 |
| dismay 동사 | /dɪsˈmeɪ/ | 놀라다, 경악하다 |
| egocentric 형용사 | /ˌiːɡəʊˈsɛntɹɪk/ | 자기중심적인 |
| epistemology 명사 | /ɪˌpɪstəˈmɑləd͡ʒi/ | 인식론 |
| frighten 동사 | /ˈfɹaɪ.tən/ | 겁먹게 만들다 |
| memorize 동사 | /ˈmɛm.əˌɹaɪ̯z/ | 기억하다, 암기하다 |
| petabyte 명사 | /ˈpɛtəbaɪt/ | 페타바이트 |
| proprioception 명사 | /ˌpɹoʊ.pɹi.oʊˈsɛp.ʃən/ | 심부감각 |
| souvenir 명사 | /ˈsu.vəˌnɪɹ/ | 기념품, 선물 |
| synonym 명사 | /ˈsɪn.əˌnɪm/ | 같은말, 비슷한말 |
따라 말해 볼 만한 문장
영상에 나오는 짧고 완결된 문장으로, 일상 대화에서 그대로 쓸 수 있습니다:
- Where are your fingers?
- Can you turn your tongue upside down?
- How many memories can you fit inside your head?
- That you don't just live in the matrix?
- Do you want more unanswered questions?
이 영상의 문법
화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.
| 문형 | 영상 속 표현 |
|---|---|
| 수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점 | is called · might be based · are unmarried |
| 현재완료 have/has + 과거분사 — 과거의 일이 지금도 관련이 있을 때 | has shown · you've met · have made |
주의할 발음
화자는 don't, they're, aren't 같은 축약형과 약화된 형태를 22번 사용합니다. 들리는 대로 짧게 발음하세요.
- “th” 소리: kinesthetic /ˌkɪnɪsˈθɛtɪk/, strengthen /ˈstɹɛŋ(k)θən/
- “sh”와 “zh” 소리: illusion /ɪˈl(j)uːʒ(ə)n/, potentiation /pəʊˌten.ʃiːˈeɪ.ʃən/, justification /ˌd͡ʒʌstɪfɪˈkeɪʃən/, sensation /sɛnˈseɪʃən/, annotation /ˌæn.əˈteɪ.ʃən/
- 긴 단어 — 강세 위치에 주의: realism /ˈɹi.əlɪzəm/, potentiation /pəʊˌten.ʃiːˈeɪ.ʃən/, justification /ˌd͡ʒʌstɪfɪˈkeɪʃən/, accelerator /əkˈsɛl.əˌɹeɪ.tɚ/, annotation /ˌæn.əˈteɪ.ʃən/
한국어 화자가 어려워하는 소리:
- /f/ — ㅍ(/p/)으로 바꾸지 말고 윗니를 아랫입술에 대기: justification /ˌd͡ʒʌstɪfɪˈkeɪʃən/, figment /ˈfɪɡ.mənt/, freaky /ˈfɹiː.ki/, frighten /ˈfɹaɪ.tən/, paragraph /ˈpæɹəɡɹæf/
- /v/ — ㅂ(/b/)과 구별하기: convincingly /kənˈvɪn.sɪŋ.li/, souvenir /ˈsu.vəˌnɪɹ/, perceive /pɚˈsiv/, evaluate /ɪˈvaljʊeɪt/
- /z/ — ㅈ이 아니라 성대를 울리는 /s/: realism /ˈɹi.əlɪzəm/, memorize /ˈmɛm.əˌɹaɪ̯z/, solipsism /ˈsɒlɪpsɪzəm/, realization /ˌɹɪə.laɪˈzeɪ.ʃən/, organize /ˈɔɹɡənaɪz/
이 영상으로 연습하는 방법
- 먼저 말하지 않고 영상을 끝까지 듣고 모르는 단어를 적어 둡니다.
- 보통 속도로 한 문장씩 섀도잉하고, 화자의 리듬과 맞을 때까지 반복합니다.
- 자신의 목소리를 녹음해 원본과 비교하고, neuron, bachelor, illusion 같은 단어에 특히 주의합니다.
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.