Shadowing Practice: What Happened to the Dinosaurs? - Learn English Speaking with Video

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Clues, clues, lookin’ for clues… Oh!
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It’s you! Hi!
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You were probably expecting Jessi, right?
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Well, she and Squeaks will be back next time, but right now they're off doing a bit of detective work in Yucatán, Mexico!
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You might say they’ve flown south for the winter.
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And of course I approve of that!
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Very bird-like of them.
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You see, we teamed up because we got curious about one of the greatest mysteries of all time: What happened to the dinosaurs?
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If you know me, you know that I loooove dinosaurs.
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And a long time ago — around 65 million years! — the dinosaurs were large and in charge.
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They had ruled the Earth for over 160 million years.
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And then, something strange happened, not just to dinosaurs, but to over half the Earth's species.
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That means a type of living thing, like oak trees, or cuckoo birds like me, or humans like you.
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All at once, about 65 million years ago, a bunch of different species just went extinct — they were completely wiped out!
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That’s because something big happened, causing huge changes on Earth.
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Changes in the weather, changes in the oceans … changes that made it harder for dinosaurs and other living things to find food and survive.
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Sure sounds mysterious!
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Most species will go extinct sometime, but what I wanna know is: What happened?
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What caused so many species – from tiny ocean creatures to big land reptiles like T-rex and Triceratops – to all go extinct at the same time?
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Scientists don’t know for sure, but they have a few different guesses.
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Some scientists think it happened because of a giant rock moving through space, called an asteroid, that crashed into the Earth.
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As it happens, that’s just what Jessi and Squeaks went to Mexico to learn more about!
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And Jessi’s giving us a call right now!
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How’s your vacation, Jessi?
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Jessi: Terrific, Dino!
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Squeaks and I are here at the Yucatán Peninsula in Mexico, and we’re learning so much!
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We learned that 65 million years ago, an asteroid blasted in from outer space and landed right here!
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This asteroid was enormous — it was 12 kilometers wide, so big that it would take hours just to walk from one side to the other.
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And when it landed, the explosion left an even bigger crater — a big bowl-shaped dent in the Earth.
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It’s called the Chicxulub crater, and it’s about 150 kilometers wide.
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The explosion sent lots of rocks and other debris raining down on anything nearby.
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And it sent billions of tons of soot into the air!
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Soot is the dusty stuff that’s left over when something burns up, Dino: That's one powerful explosion!
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Jessi: It sure was!
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It made the whole world really hot for a few days.
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And it started fires, giant waves, and huge, strong winds; and it shook the Earth, in a super powerful earthquake!
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Dino: Thanks for the hot tips, Jessi.
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Enjoy the rest of your trip!
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Now, some scientists think that the explosion from the asteroid sent so much soot into the air that it blocked out the Sun.
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For a while, it was really dark outside, even during the day!
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And without sunshine, it started to get cold, which meant some of the living things that were used to warmer weather couldn’t survive.
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There was another problem, too: plants need sunlight to live, so a lot of the plants back then died.
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Without plants, the animals that ate plants didn't have enough food, and without enough plant-eaters, the animals that ate meat went hungry too.
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That’s why some scientists think the asteroid was what caused the dinosaurs to go extinct!
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But other scientists think there may have been another cause, and that even before that asteroid crashed into the Earth, disaster was in the air for the dinosaurs.
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And they think the culprit was ... volcanoes!
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Because right around the time that the dinosaurs went extinct, one of the biggest volcanic eruptions in history was underway, in the area of the world that’s now India.
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For close to a million years, eruptions sent rocks and dust and soot onto the land and into the air.
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Just like with the asteroid impact, all this stuff in the air would have blocked out the Sun, making the Earth cooler and darker.
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So we don’t know for sure what darkened the skies and wiped out all those species — it could have been the asteroid, or it could have been the volcanoes, or both!
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We have so many clues, but the true culprit is going to remain a mystery... for now.
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Either way, the dinosaurs were pretty unlucky!
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A lot of things went very wrong for them, all at the same time.
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But even though life was hard, some types of plants and animals were able to find food and shelter while the Earth was changing, and they survived!
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Whatever happened all those years ago, life on Earth goes on, and we’re all here, solving mysteries together!
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Do you have any big mysteries you’re wondering about?
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Ask a grownup to help you and leave a comment below, or send us an email at [email protected].
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And if you want to join us next time, hit that subscribe button!

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Vocabulario y notas de pronunciación para esta lección

Esta lección de conversación de nivel A2 se basa en el vídeo “What Happened to the Dinosaurs?”. Las palabras que más se repiten: dinosaurs, Earth, asteroid, Jessi, plant. Este vídeo tiene 58 frases y 870 palabras para practicar shadowing. La parte hablada dura 4:28. El hablante habla rápido, unas 194 palabras por minuto, así que espera sonidos enlazados y reducidos. El 81 % de las palabras está entre las 3.000 más comunes del inglés; conviene repasar el resto antes de empezar.

Vocabulario clave de este vídeo

15 palabras del vídeo que vale la pena aprender, con su pronunciación y significado:

PalabraPronunciaciónSignificado
dinosaur sustantivo/ˈdaɪnəsoɹ/dinosaurio
asteroid sustantivo/ˈæst(ə)ɹɔɪd/asteroide, planetoide
scientist sustantivo/ˈsaɪəntəst/científico, científica
extinct adjetivo/ɪkˈstɪŋkt/extinto
mystery sustantivo/ˈmɪs.t(ə.)ɹi/misterio, arcano
explosion sustantivo/ɛkˈsploʊ.ʒən/explosión
clue sustantivo/kluː/pista, indicio
wipe verbo/waɪp/enjugar, trapear
volcano sustantivo/vɑlˈkeɪ.noʊ/volcán
crater sustantivo/ˈkɹeɪ.tɚ/cráter
eruption sustantivo/ɪˈɹʌpʃən/erupción
curious adjetivo/ˈkjʊɹ.i.əs/curioso, tener curiosidad
hungry adjetivo/ˈhʌŋ.ɡɹi/hambriento, tener hambre
solve verbo/sɒlv/resolver, solucionar
dust sustantivo/dʌst/polvo

Phrasal verbs que vas a escuchar

PalabraSignificado
wipe out verboaniquilar, exterminar

Gramática en este vídeo

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

EstructuraEn el vídeo
Past continuous was/were + -ing — una acción en curso en un momento del pasadowere probably expecting · was changing
Posibilidad con “might / may” might/may + verbo — algo posible pero no seguromight say · may have
Superlativos the -est / the most … — lo más alto o lo más bajo de un grupothe greatest · the biggest
Present continuous am/is/are + -ing — algo que ocurre ahora o en estos díaswe're learning · you're wondering

Pronunciación a tener en cuenta

El hablante usa 10 contracciones y formas reducidas, como don't, we're, couldn't. Dilas en su forma corta, tal como las oyes.

  • Los sonidos de “sh” y “zh”: explosion /ɛkˈsploʊ.ʒən/, eruption /ɪˈɹʌpʃən/, vacation /veɪˈkeɪ.ʃən/, shake /ˈʃeɪk/, shelter /ˈʃɛltə/

Sonidos difíciles para hispanohablantes:

  • /v/ — no es /b/: los dientes tocan el labio inferior: volcano /vɑlˈkeɪ.noʊ/, solve /sɒlv/, vacation /veɪˈkeɪ.ʃən/, detective /dɪˈtɛktɪv/, approve /əˈpɹuːv/

Cómo practicar con este vídeo

  1. Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
  2. Empieza a velocidad 0,75×, haz shadowing frase por frase y vuelve a la velocidad normal cuando te resulte fácil.
  3. Grábate y compara con el original, prestando atención a palabras como dinosaur, asteroid, scientist.

¿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 →