Shadowing Practice: READING EXPLORER 2 Unit 2B The 1,000 - year bird song - Learn English Speaking with Video

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Unit 2.
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B. The 1 ,000 -year birdsong A.
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Every summer the calls of thousands of swamp sparrows can be heard across North America's wetlands.
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These little brown birds know only a few songs but they know them very well.
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In fact, Their musical set list probably hasn't changed much for centuries,
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Be like humans, baby swamp sparrows learn to communicate by copying adults.
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From a young age, they learned to copy or mimic Songs sung by their elders.
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Swamp sparrows very rarely make mistakes when they learn their songs, says biologist Robert Lachlan.
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In fact, their mimicry is so accurate that the music changes little between generations.
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See, just like children, The sparrows don't remember every song they hear, Lachlan says, They don't just learn songs at random,
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they pick up commoner songs rather than rarer songs.
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In other words, they learn songs they hear most often.
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It's an example of a strategy that scientists call conformist bias.
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Until recently, this learning ability was thought to be special only to humans.
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D. Between 2008 and 2009, Lachlan's research team recorded the calls of 615 male swamp sparrows across the northeastern United States.
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The researchers used computer software to break each song into a collection of notes or syllables
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They then measured the differences between the tunes,
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e The research revealed that only 2 % of male sparrows sung a different song from the standard tune.
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The combination of accurate mimicry and conformist bias allows the birds to create traditions that last for centuries.
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With those two ingredients together, you end up with traditions that are really stable, says Lachlan.
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The song types that you hear in the marshes of North America today may well have been there 1000 years ago.
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F. Lachlan's study is among the first to measure the longevity of song traditions within a bird species.
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Another aspect scientists are now exploring is the impact of habitat loss on songbirds.
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Man -made barriers, such as cities, roads and plantations, can break up a bird population into a number of isolated groups.
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These barriers may prevent cultural interaction between songbird populations such as the exchange of song types,
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G The findings are really exciting, says scientist Andrew Farnsworth.
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He hopes that future research will evolve from these studies.
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For example, scientists may be able to identify how other animals are able to preserve their cultural traditions.
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Seeing the potential for it in other organisms is super cool, says Farnsworth.

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Vocabulario y notas de pronunciación para esta lección

Esta lección de conversación de nivel B2 se basa en el vídeo “READING EXPLORER 2 Unit 2B The 1,000 - year bird song”. Las palabras que más se repiten: song, sparrows, swamp, traditions, scientist. Este vídeo tiene 29 frases y 402 palabras para practicar shadowing. La parte hablada dura 2:56. El hablante mantiene un ritmo constante de unas 137 palabras por minuto, cómodo para el shadowing. 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

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

PalabraPronunciaciónSignificado
sparrow sustantivo/ˈspæɹoʊ/pasérido, gorrión
swamp sustantivo/ˈswɑmp/embalsadero, pantano
conformist adjetivo/kənˈfɔɹ.mɪst/conformista
mimicry sustantivo/ˈmɪm.ɪ.kɹi/mimetismo, mimetización
songbird sustantivo/ˈsɔŋˌbɝd/pájaro cantor
barrier sustantivo/ˈbæɹi.ə/barrera
bias sustantivo/ˈbaɪ.əs/sesgo, bías
biologist sustantivo/baɪˈɒləd͡ʒɪst/biólogo, bióloga
birdsong sustantivoreclamo
excite verbo/ɪkˈsaɪt/emocionar
syllable sustantivo/ˈsɪl.ə.bəl/sílaba
wetland sustantivohumedal
longevity sustantivo/lɒnˈd͡ʒɛv.ɪ.ti/longevidad
organism sustantivo/ˈɔɹ.ɡəˌnɪz.əm/organismo
isolate verbo/ˈaɪ.sə.leɪt/aislar

Phrasal verbs que vas a escuchar

PalabraSignificado
break up verboseparar, cisionar
pick up verbocoger, asir

Gramática en este vídeo

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

EstructuraEn el vídeo
Present perfect have/has + participio pasado — una acción pasada que sigue importando ahorahasn't changed · have been
Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hacecan be heard · was thought

Pronunciación a tener en cuenta

El hablante usa 3 contracciones y formas reducidas, como don't, hasn't. Dilas en su forma corta, tal como las oyes.

  • Los sonidos de “sh” y “zh”: plantation /plænˈteɪʃən/, marsh /mɑɹʃ/
  • Palabras largas — cuida el acento: biologist /baɪˈɒləd͡ʒɪst/, longevity /lɒnˈd͡ʒɛv.ɪ.ti/, organism /ˈɔɹ.ɡəˌnɪz.əm/, ingredient /ɪnˈɡɹiːdi.ənt/

Sonidos difíciles para hispanohablantes:

  • s + consonante al inicio — sin añadir una “e” delante: sparrow /ˈspæɹoʊ/, swamp /ˈswɑmp/
  • /v/ — no es /b/: los dientes tocan el labio inferior: longevity /lɒnˈd͡ʒɛv.ɪ.ti/, evolve /ɪˈvɑlv/, preserve /pɹəˈzɝv/
  • /z/ — sonora, no /s/: organism /ˈɔɹ.ɡəˌnɪz.əm/, preserve /pɹəˈzɝv/

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 sparrow, swamp, conformist.

¿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 →