Shadowing Practice: Lighthouse Lab – Floating and Sinking - Learn English Speaking with Video
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The Lighthouse Lab I'm going to go ahead and put it in the middle of the middle.
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Thank you.
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Oh, hey there.
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If you've ever taken a bath before, you'll have noticed that some things Like this rubber duck, Stay on top of the water.
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They float.
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Other things, like this bath plug, sink to the bottom of the bath.
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They sink in water. So what causes this?
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Well, the simple answer has to do with density.
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Density is the amount of mass an object has in a given volume.
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The more mass an object has in a given volume, the more dense it is.
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Objects that are more dense than water will sink to the bottom.
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But objects that are less dense than water will float on the top.
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Our rubber duckies volume is mostly made up of air which is less dense than water.
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That's why it floats on top.
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Take a look at these objects.
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Let's make predictions about which ones will float or sink when placed in this bath of water.
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Thank you.
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This is a ball of modelling clay.
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Hmm, it feels pretty heavy.
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I think it might sink.
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What do you think?
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Yep.
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It's definitely more dense than water.
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Thank you.
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What about this metal coin?
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Metal is pretty heavy.
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I think this is definitely going to sink in water.
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Yep.
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Definitely more dense than water.
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This polystyrene ball is very light.
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I think this is definitely less dense than the water.
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What do you think?
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Yep.
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It floats.
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What about this ping pong ball?
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It feels very light too.
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I think it's less dense than water.
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Yep.
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It floats.
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What about this glass marble?
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Hmm.
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Yep, definitely more dense than the water.
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This is a wooden block.
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Hmm.
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I'm not sure about this one.
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What do you think?
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Wow, it floats.
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So the wooden block is less dense than water.
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That was fun, wasn't it, rubber ducky?
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What's that?
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You want to go for another swim?
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Here you go.
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See you next time in the Lighthouse Lab.
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Music.
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Vocabulario y notas de pronunciación para esta lección
Este vídeo tiene 54 frases y 348 palabras para practicar shadowing. La parte hablada dura 3:17. El hablante habla despacio, unas 106 palabras por minuto, así que hay tiempo para imitar cada sonido. Solo el 79 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.
Vocabulario clave de este vídeo
15 palabras menos comunes del vídeo, con su pronunciación y significado:
- dense /ˈdɛns/ (adjetivo) — denso. Having relatively high density.
- float /fləʊt/ (verbo) — flotar. To be supported by a fluid of greater density (than the object).
- sink /ˈsɪŋk/ (verbo) — hundir, afondar. To descend or submerge (or to cause to do so) into a liquid or similar substance.
- bath /bɑːθ/ (sustantivo) — bañera. A tub or pool which is used for bathing: bathtub.
- rubber /ˈɹʌbɚ/ (sustantivo) — caucho, goma. Pliable material derived from the sap of the rubber tree; a hydrocarbon biopolymer of isoprene.
- density /ˈdɛn.sə.ti/ (sustantivo) — densidad. A measure of the mass of matter contained by a unit volume.
- wooden /ˈwʊdn̩/ (adjetivo) — de madera. Made of wood.
- painful /ˈpeɪn.fl̩/ (adjetivo) — doloroso. Causing pain or distress, either physical or mental.
- clay /kleɪ/ (sustantivo) — arcilla, barro. A mineral substance made up of small crystals of silica and alumina, that is ductile when moist; the material of pre-fired ceramics.
- duck /dʌk/ (sustantivo) — pato, ánade. Any of certain aquatic birds of the family Anatidae, having a flat bill and webbed feet, distinguished from swans and geese by generally being smaller and…
- swim /swɪm/ (verbo) — nadar. To move through the water, without touching the bottom; to propel oneself in water by natural means.
- coin /ˈkoɪ̯n/ (sustantivo) — moneda, numerario. A piece of currency, usually metallic and in the shape of a disc, but sometimes polygonal, or with a hole in the middle.
- plug /plʌɡ/ (sustantivo) — enchufe, clavija. A pronged connecting device which fits into a mating socket, especially an electrical one.
- marble /ˈmɑɹ.bəl/ (sustantivo) — mármol, alioj (disused). A metamorphic rock of crystalline limestone.
- prediction /pɹɪˈdɪkʃən/ (sustantivo) — predicción. A statement of what will happen in the future.
Phrasal verbs que vas a escuchar
- go ahead /ˌɡoʊ əˈhɛd/ (verbo) — venga, adelante. To proceed with; to begin.
- look at (verbo) — mirar, funar. To observe or watch.
Pronunciación a tener en cuenta
El hablante usa 5 contracciones y formas reducidas, como I'm, wasn't, you'll. Dilas en su forma corta, tal como las oyes.
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 dense, float, sink.
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Comparativos -er than / more … than — comparar dos cosas | more dense than · less dense than |
| Futuro con “will” will + verbo — una decisión, una promesa o una predicción | you'll have · will sink · will float |
| Futuro con “going to” be going to + verbo — un plan o algo que se ve venir | I'm going to go · is definitely going to sink |
¿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.