Shadowing Practice: National Geographic Reading Explorer 2 Unit 6 Ocean Megabuilders - Learn English Speaking with Video
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The bright colors of coral reefs can be seen in warm seas all around the planet.
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But they are not just beautiful, they are also hugely important to our oceans.
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1. Corals are actually animals.
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Though they may look like colorful plants, coral are in fact made up of tiny animals called polyps.
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Polyps can range from the size of a pinhead to a bit larger than a basketball.
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2. Corals are mega builders.
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Each polyp builds itself a skeleton out of limestone.
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These skeletons join together to form large colonies of hard corals.
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As polyp colonies grow over hundreds and thousands of years.
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They join with other colonies and become reefs that can stretch over hundreds of kilometers.
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The largest coral reef is Australia's Great Barrier Reef.
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It began growing about 20,000 years ago.
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Three, coral reefs are some of the most diverse ecosystems on Earth.
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Though they cover less than 1% of the ocean floor, coral reefs are home to 25% of all sea creatures.
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Up to 2 million species live in coral reefs around the world.
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4. Coral provide a window to the past.
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As coral grow over thousands or millions of years, their limestone skeletons form layers.
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These are similar to tree rings.
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They vary in thickness based on ocean conditions at the time.
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Scientists can study these layers to learn what the Earth's climate may have been like in the distant past.
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But what about the future?
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Unfortunately, climate change is dangerous for Earth's coral reefs, the animals that live there,
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and the 500 million people around the world who depend on reef fish for food.
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Unless we can slow down climate change, scientists warn that our oceans could lose many of their colorful reefs by the end of the 21st century.
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Vocabulario y notas de pronunciación para esta lección
Esta lección de conversación de nivel B2 se basa en el vídeo “National Geographic Reading Explorer 2 Unit 6 Ocean Megabuilders”. Las palabras que más se repiten: coral, reef, polyp, ocean, skeleton. Este vídeo tiene 24 frases y 289 palabras para practicar shadowing. La parte hablada dura 2:29. El hablante mantiene un ritmo constante de unas 116 palabras por minuto, cómodo para el shadowing. Solo el 78 % 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 11 palabras más avanzadas del vídeo, con su pronunciación y significado:
| Palabra | Pronunciación | Significado |
|---|---|---|
| coral sustantivo | /ˈkɔɹəl/ | coral, coralina |
| reef sustantivo | /ɹiːf/ | arrecife |
| polyp sustantivo | /ˈpɑlɪp/ | pólipo |
| skeleton sustantivo | /ˈskɛlətən/ | esqueleto, osamenta |
| limestone sustantivo | /ˈlaɪmˌstoʊn/ | caliza |
| colorful adjetivo | /ˈkʌl.əɹ.fl̩/ | lleno, de color |
| thickness sustantivo | /ˈθɪknəs/ | grosor, espesura |
| ecosystem sustantivo | /ˈikoʊˌsɪstəm/ | ecosistema |
| builder sustantivo | /ˈbɪl.dəɹ/ | constructor, constructora |
| warn verbo | /woɹn/ | alertar, avisar |
| depend verbo | /dɪˈpɛnd/ | depender/pender (de), ser dependiente (de) |
Phrasal verbs que vas a escuchar
| Palabra | Significado |
|---|---|
| slow down verbo | desacelerar, decelerar |
Pronunciación a tener en cuenta
Sonidos difíciles para hispanohablantes:
- /h/ — una aspiración suave, no la “j”: pinhead /ˈpɪn.hɛd/, hugely /ˈhjuːd͡ʒli/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Haz shadowing frase por frase a velocidad normal, repitiendo cada una hasta que tu ritmo coincida con el del hablante.
- Grábate y compara con el original, prestando atención a palabras como coral, reef, polyp.
¿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.