쉐도잉 연습: Why Are Elements Arranged This Way? | LESSON 4-The Periodic Table | Science in English - 영상으로 영어 말하기 배우기

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Why are elements arranged this way?
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Take a look at the periodic table.
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There are many chemical elements, but they are not arranged randomly.
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Look at the horizontal rows, and then look at the vertical columns.
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What do you notice?
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Can you see a pattern?
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Let's find out why elements are arranged this way.
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Welcome to lesson four, an overview of the periodic table.
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In this lesson, we'll learn how chemical elements are arranged.
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We'll also explore element squares, periods, and groups.
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Finally, we'll use the periodic table to identify metals, non -metals, and noble gases.
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Alright, let's get started.
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First, let's look at our learning objectives.
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By the end of this lesson, you should be able to do three things.
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First, describe the principles tables used to arrange chemical elements.
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Second, identify information in an element square, and explain periods and groups.
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Third, use the periodic table to identify metals, nonmetals, and noble gases.
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Keep these objectives in mind as we go through the lesson.
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Now, let's begin.
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How are elements arranged?
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Let's take a closer look at the periodic table.
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The first principle is that elements are arranged in order of increasing nuclear charge.
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Next, let's look at periods.
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Elements in the same period have the same number of electron shells.
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Now, what about groups?
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Elements in the same group A have similar chemical properties.
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Notice the pattern.
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The periodic table helps us understand the relationships between elements.
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Now, let's look at an element square.
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Take a look at the element square for oxygen.
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At the top, we can see the atomic number.
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It is 8.
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The chemical symbol is O, and the element name name is oxygen.
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The atomic mass shown here is 16.
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So, one element square gives us several important pieces of information.
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Can you point to the atomic number?
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What about the chemical symbol?
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Can you find the element name and the atomic mass?
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Good job!
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Now, let's look at periods and groups.
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Let's start with periods.
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A period is a horizontal row in the periodic table.
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The period number tells us the number of electron shells in an atom of an element in that period.
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Now let's look at groups.
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A group is a vertical column.
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For the group A elements studied in this lesson, the group number corresponds to the number of electrons in the outermost shell.
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Take a look at the diagram.
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Can you identify a period?
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Now, can you identify a group?
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Excellent.
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Let's move on to the different categories of elements.
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The periodic table helps us identify different categories of elements.
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First, let's look at metals.
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Examples include iron, copper, and aluminium.
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Next, we have nonmetals.
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Examples include oxygen, sulfur, and chlorine.
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Finally, let's look at noble gases.
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These include helium, neon, and argon.
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Notice that these categories occupy different regions of the periodic table.
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Now, let's use the table to classify some elements.
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Alright, it's your turn.
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Take a look at these symbols, F -E -O -N -E -C -U -C -L and H -E.
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First, find each element on the periodic table.
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Next, identify its period and group.
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Then, classify it as a metal, a non -metal, or a noble gas.
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Now, work with a partner and explain your answers.
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Remember, don't just give the answer.
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Explain how you used the periodic table.
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Excellent work.
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Let's review the key ideas.
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Finally, let's review what we've learned today.
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First, elements are arranged in order of increasing nuclear charge.
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Second, the periodic table has periods and groups.
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A period is a horizontal row.
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and a group is a vertical column.
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Elements in the same period have the same number of electron shells.
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Elements in the same group A have similar chemical properties.
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Finally, we can use the periodic table to identify metals, nonmetals, and noble gases.
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Before we finish, think about this question.
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Why do elements in the same group have similar chemical properties?
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Think about the electrons in the outermost shell.
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Remember, the periodic table is more than a list of elements.
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It helps us understand patterns and relationships between them.
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Great job today.
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Keep practicing your science English, and I'll see you in the next lesson.

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이 레슨의 어휘와 말하기 포인트

이 말하기 레슨은 영상 “Why Are Elements Arranged This Way?”을(를) 바탕으로 합니다. 가장 자주 반복되는 단어는 다음과 같습니다: element, table, periodic, period, identify. 이 영상에는 섀도잉할 문장 85개와 단어 697개가 있습니다. 말하는 구간의 길이는 5:41입니다. 화자는 분당 약 123단어의 일정한 속도로 말해서 섀도잉하기에 편한 속도입니다. 영어에서 가장 많이 쓰이는 3,000단어에 속하는 단어가 77%뿐이라 어휘가 어려운 편입니다.

이 영상의 핵심 어휘

영상에 나오는 익혀 둘 만한 단어 15개를 발음, 뜻과 함께 정리했습니다.

단어발음뜻
element 명사/ˈɛləmənt/요소
arrange 동사/əˈɹeɪnd͡ʒ/조정하다
lesson 명사/ˈlɛs.ən/수업, 과
shell 명사/ʃɛl/조가비, 조개
atomic 형용사/əˈtɑː.mɪk/원자
symbol 명사/ˈsɪmbəl/상징, 부호
oxygen 명사/ˈɑksɪd͡ʒən/산소
vertical 형용사/ˈvɝ.tɪ.kəl/수직의
horizontal 형용사/ˌhoɹəˈzɑn.təl/가로의, 수평의
electron 명사/ɪˈlɛk.tɹɑn/전자
objective 명사/ɒbˈd͡ʒɛk.tɪv/목적
principle 명사/ˈpɹɪn.sɪ.pəl/원리, 원칙
column 명사/ˈkɒləm/기둥
explore 동사/ɪkˈsploɹ/탐험하다
copper 명사/ˈkɒpə/구리, 구리쇠

따라 말해 볼 만한 문장

영상에 나오는 짧고 완결된 문장으로, 일상 대화에서 그대로 쓸 수 있습니다:

  • What do you notice?
  • Can you see a pattern?
  • Let's find out why elements are arranged this way.
  • Can you point to the atomic number?
  • Can you identify a period?

이 영상의 문법

화자가 가장 많이 쓰는 문형을 영상 속 실제 표현과 함께 정리했습니다.

문형영상 속 표현
수동태 be + 과거분사 — 누가 하는지보다 무슨 일이 일어나는지에 초점are not arranged · are arranged
“will” 미래 will + 동사 — 결정, 약속 또는 예측we'll learn · We'll also explore · we'll use

주의할 발음

화자는 we'll, don't, I'll 같은 축약형과 약화된 형태를 6번 사용합니다. 들리는 대로 짧게 발음하세요.

  • 긴 단어 — 강세 위치에 주의: periodic /ˌpɪɹiˈɑdɪk/, horizontal /ˌhoɹəˈzɑn.təl/, aluminium /ˌæl.(j)uˈmɪn.i.əm/

한국어 화자가 어려워하는 소리:

  • /f/ — ㅍ(/p/)으로 바꾸지 말고 윗니를 아랫입술에 대기: classify /ˈklæs.əˌfaɪ/, sulfur /ˈsʌl.fə/
  • /v/ — ㅂ(/b/)과 구별하기: vertical /ˈvɝ.tɪ.kəl/, objective /ɒbˈd͡ʒɛk.tɪv/, overview /ˈoʊ.vɚˌvjuː/
  • /z/ — ㅈ이 아니라 성대를 울리는 /s/: horizontal /ˌhoɹəˈzɑn.təl/, columns /ˈkɑləmz/

이 영상으로 연습하는 방법

  1. 먼저 말하지 않고 영상을 끝까지 듣고 모르는 단어를 적어 둡니다.
  2. 보통 속도로 한 문장씩 섀도잉하고, 화자의 리듬과 맞을 때까지 반복합니다.
  3. 자신의 목소리를 녹음해 원본과 비교하고, element, arrange, lesson 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.

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