쉐도잉 연습: Parts of a Microscope & How to Use a Microscope - 영상으로 영어 말하기 배우기
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in this video we're going to learn about microscopy which just means the use of microscopes
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so we'll cover what a microscope is what the terms object image and magnification mean
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the different parts of a light microscope and finally how to use a light microscope To start off,
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we need to know what a microscope is.
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So a microscope is a tool that we use in science to make things look much larger than they actually are, and so help us see tiny details.
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For example, we often use microscopes in biology to look at cells, which we can't see with the naked eye, but can see with a microscope.
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before we go any further we need to introduce the terms object
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and image in microscopy the term object refers to the real object
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or the sample that you're looking at so
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if we had some onion cells on our microscope slide then these cells themselves would be the object
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the term image on the other hand refers to the image that we see when we look down the microscope
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for example if we were to look down this microscope we might see something like this
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so this would be our image whereas the object is the actual onion cells on the microscope slide
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that we're looking at this brings us nicely to the next term you need to know magnification
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which we can define as how many times larger the image is than the object
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So if the image appeared 1 ,000 times larger than the object, then the magnification would be times 1 ,000.
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Next, let's move on to look at the different parts of a light microscope.
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Supporting the whole thing is the base at the bottom, and then the arm that connects the bottom to the top.
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Then we have some kind of light source, which on some microscopes would be a lamp, But in this case, it's just a mirror reflecting the light from the room.
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And just above it is the stage, which is where we put our microscope slide.
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Then in the top half, we have all of our lenses.
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So we normally have three objective lenses, which we can choose between, and each have different magnifications.
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And then also an eyepiece lens, which has a fixed magnification.
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And sits just below where we look into the microscope.
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Then the last things to notice are the body tube here
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and the coarse and fine focusing knobs which we can turn to help us get the image in focus.
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The last thing we need to cover are the main steps of how to use a light microscope.
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First, we need to set up the microscope near a window
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or a lamp to make sure there's enough light and angle the mirror to direct the light upwards.
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This will reflect the light up through the hole in the stage.
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We then need to take our specimen
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which is the scientific word for whatever it is you'll be looking at
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and place it on a thin glass plate called a slide.
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Next we take our slide with the specimen on, place it onto the stage and secure it.
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This means we put it just here so the light reflected shines through the specimen and up through the microscope.
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Now that our slide is in place, we can look through the eyepiece lens and adjust the focus.
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So first we turn the coarse focus knob to get a rough image
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and then we can turn the fine focus knob to fine
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-tune it until we have a clear magnified view of our
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specimen finally this part here where the objective lenses are can
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rotate to switch to an objective lens with a higher magnification
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then you can adjust the focus again to bring the specimen back into clear view
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if you haven't heard yet you can find all of our videos on our website cognito .org You'll also find questions,
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flashcards, exam -style questions, and past papers.
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And we track all of your progress so that you always know what to study next.
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이 레슨의 어휘와 말하기 포인트
이 영상에는 섀도잉할 문장 46개와 단어 698개가 있습니다. 말하는 구간의 길이는 4:40입니다. 화자는 분당 약 149단어의 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
영상에 나오는 익혀 둘 만한 단어 15개를 발음, 뜻과 함께 정리했습니다.
| 단어 | 발음 | 뜻 |
|---|---|---|
| microscope 명사 | /ˈmaɪ.kɹəˌskoʊp/ | 현미경 |
| slide 명사 | /ˈslaɪ̯d/ | 미끄럼틀, 미끄럼대 |
| lens 명사 | /lɛnz/ | 렌즈 |
| specimen 명사 | /ˈspɛsɪmɪn/ | 표본 |
| reflect 동사 | /ɹɪˈflɛkt/ | 반사(反射)하다 |
| objective 명사 | /ɒbˈd͡ʒɛk.tɪv/ | 목적 |
| mirror 명사 | /ˈmiɹɚ/ | 거울 |
| refer 동사 | /ɹɪˈfɜː/ | 언급하다 |
| lamp 명사 | /ˈlæ̝mp/ | 램프, 전등 |
| onion 명사 | /ˈʌn.jən/ | 양파 |
| thin 형용사 | /ˈθɪn/ | 가늘다, 얇다 |
| naked 형용사 | /ˈneɪkɪd/ | 벌거벗은, 벌거벗다 |
| angle 명사 | /ˈæŋ.ɡəl/ | 각, 각도 |
| connect 동사 | /kəˈnɛkt/ | 잇다, 연결하다 |
| introduce 동사 | /ˌɪntɹəˈdus/ | 소개(紹介)하다 |
이 영상의 문법
화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.
| 문형 | 영상 속 표현 |
|---|---|
| 관계절 who / which + 절 — 사람이나 사물에 대한 추가 정보 | stage, which is · lens, which has |
| 비교급 -er than / more … than — 두 대상을 비교 | larger than |
| 의무: must / have to / need to 어떤 일이 필요하다고 말할 때 | need to know · need to introduce · need to cover |
| “will” 미래 will + 동사 — 결정, 약속 또는 예측 | we'll cover · will reflect · you'll be |
주의할 발음
화자는 we're, you'll, can't 같은 축약형과 약화된 형태를 8번 사용합니다. 들리는 대로 짧게 발음하세요.
- “sh”와 “zh” 소리: examination /ɪɡˌzæm.ɪˈneɪ.ʃən/, shine /ʃaɪn/, magnification /ˌmæɡnɪfɪˈkeɪʃən/, flashcard /ˈflæʃˌkɑɹd/
- 긴 단어 — 강세 위치에 주의: examination /ɪɡˌzæm.ɪˈneɪ.ʃən/, biology /baɪˈɑ.lə.d͡ʒi/, magnification /ˌmæɡnɪfɪˈkeɪʃən/, microscopy /maɪˈkɹɑ.skə.pi/
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, microscope, slide, lens 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.