Shadowing Practice: Science in English #3 | The Periodic Table - Learn English Speaking with Video

Creando lección...
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Ahem.
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Good morning, everyone.
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Today we are going to learn about the periodic table.
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Think of it as a map of all known elements.
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Just like a map helps you find places, the periodic table helps scientists organize the building blocks of matter.
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Let's get started.
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Let's begin with a simple comparison.
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The English language has only 26 letters.
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Yet, those 26 letters can create millions of words and sentences.
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Nature is very similar.
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About 118 elements combine to create everything around us.
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So where can we find all these elements?
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We can find them in the periodic table.
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Let's begin with our learning objectives.
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By the end of this lesson, you will understand what the periodic table is.
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You will learn about atomic number and atomic mass.
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You will also identify groups and periods.
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Finally, you will recognize metals, nonmetals, and metalloids.
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So what is the periodic table?
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It is a chart that organizes all known elements.
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Each element has four important pieces of information.
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Its name, its chemical symbol, its atomic number, and its atomic mass.
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Now let's look more closely at these numbers.
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The atomic number is like an ID card.
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It tells us exactly which element it is.
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For example, hydrogen has an atomic number of one.
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Carbon has an atomic number of six.
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has an atomic number of 1.
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Carbon has an atomic number of 6.
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Gold has an atomic number of 79.
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The atomic mass tells us how heavy an atom is compared with a hydrogen atom.
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Not all elements are the same.
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Scientists divide them into three main categories.
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Metals Metals are usually shiny and conduct electricity well.
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Nonmetals do not conduct electricity well.
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Metalloids have properties of both metals and nonmetals.
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Each category has its own unique properties.
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Now let's learn how to read the periodic table.
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The horizontal rows are called periods.
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The vertical columns are called groups.
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Here is an important idea.
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Elements in the same group have similar properties.
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They behave in similar ways during chemical reactions.
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Let's look at a few examples.
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Group 1 contains the alkali metals.
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They are very reactive.
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Group 17 contains the halogens.
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They are reactive non-metals.
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Group 18 contains the noble gases.
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These elements are very stable and rarely react with other elements.
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Let's review what we have learned today.
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The periodic table organizes all known elements.
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Each element has an atomic number and an atomic mass.
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The table is arranged into periods and groups.
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Elements in the same group have similar properties.
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The periodic table helps scientists understand and compare all known elements.
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Thank you for listening.
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Vocabulario y notas de pronunciación para esta lección

Esta lección de conversación de nivel B1 se basa en el vídeo “Science in English”. Las palabras que más se repiten: element, atomic, table, periodic, metals. Este vídeo tiene 57 frases y 427 palabras para practicar shadowing. La parte hablada dura 3:40. El hablante mantiene un ritmo constante de unas 117 palabras por minuto, cómodo para el shadowing. Solo el 81 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.

Vocabulario clave de este vídeo

Las 15 palabras más avanzadas del vídeo, con su pronunciación y significado:

PalabraPronunciaciónSignificado
atomic adjetivo/əˈtɑː.mɪk/atómico
periodic adjetivo/ˌpɪɹiˈɑdɪk/periódico
nonmetal sustantivono metal
organize verbo/ˈɔɹɡənaɪz/organizar
scientist sustantivo/ˈsaɪəntəst/científico, científica
metalloid sustantivo/ˈmɛtəlɔɪd/semimetal, metaloide
reactive adjetivo/ɹiːˈæktɪv/reactivo
atom sustantivo/ˈætəm/átomo
hydrogen sustantivo/ˈhaɪdɹəd͡ʒ(ə)n/hidrógeno
alkali sustantivo/ˈæl.kəˌlaɪ/álcali
halogen sustantivo/ˈhæl.ə.d͡ʒən/halógeno
horizontal adjetivo/ˌhoɹəˈzɑn.təl/horizontal
behave verbo/bɪˈheɪv/portarse
arrange verbo/əˈɹeɪnd͡ʒ/arreglar, acotejar
divide verbo/dɪˈvaɪd/desunir, dividir

Frases que vale la pena repetir

Frases cortas y completas del vídeo que puedes reutilizar en la conversación diaria:

  • Let's begin with a simple comparison.
  • Let's begin with our learning objectives.
  • Let's look at a few examples.
  • Let's review what we have learned today.

Gramática en este vídeo

Las estructuras que más usa el hablante, con las palabras exactas del vídeo:

EstructuraEn el vídeo
Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo haceis compared · are called · is arranged
Futuro con “will” will + verbo — una decisión, una promesa o una predicciónwill understand · will learn · will also identify

Pronunciación a tener en cuenta

  • Palabras largas — cuida el acento: periodic /ˌpɪɹiˈɑdɪk/, horizontal /ˌhoɹəˈzɑn.təl/

Sonidos difíciles para hispanohablantes:

  • /v/ — no es /b/: los dientes tocan el labio inferior: reactive /ɹiːˈæktɪv/, behave /bɪˈheɪv/, divide /dɪˈvaɪd/, vertical /ˈvɝ.tɪ.kəl/
  • /z/ — sonora, no /s/: organize /ˈɔɹɡənaɪz/, horizontal /ˌhoɹəˈzɑn.təl/, columns /ˈkɑləmz/
  • /dʒ/ — no es la “y” ni la “ch”: hydrogen /ˈhaɪdɹəd͡ʒ(ə)n/, halogen /ˈhæl.ə.d͡ʒən/, arrange /əˈɹeɪnd͡ʒ/

Cómo practicar con este vídeo

  1. Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
  2. Haz shadowing frase por frase a velocidad normal, repitiendo cada una hasta que tu ritmo coincida con el del hablante.
  3. Grábate y compara con el original, prestando atención a palabras como atomic, periodic, nonmetal.

¿Qué es la Técnica de Shadowing?

Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.

Técnica de shadowing: lee la guía completa paso a paso →