Shadowing Practice: How forensic scientists fight crime by analyzing handwriting - Learn English Speaking with Video

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Analyzing handwriting to help solve crimes is not just something you see in the movies, it's real.
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And tonight, Washington's most-wanted's Perella Lewis gives us a rare look at how forensic scientists do it
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and why our imprints are so unique.
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It can be writing on a wall,
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writing on an object, so a variety of things.
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Brett Bishop is one of only three forensic scientists in the state specializing in document examinations and handwriting.
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We're looking at things like proportions in the writing,
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style, letter formations, spacing, slant,
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connections between letters, stroke direction, clockwise, counterclockwise.
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The process to do his job takes years of specialized training before they're handed documents,
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forged checks, or even ransom notes for analysis.
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And if you think you can throw him off by writing with your opposite hand,
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he says no way.
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Generally speaking, that master pattern still exists,
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whether they're writing with the pen in their mouth,
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between their toes, left hand,
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right hand, It's still coming from that same mental copy book image.
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Brett demonstrated a technique used to recover writing from something other than the original source.
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Or just write anything.
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I quickly jotted down the first thing that came to my mind.
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It's a ransom note.
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Then I was asked to do it again.
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So now on this piece of paper, just write anything.
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And with that, he goes to work.
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Try and get the wrinkles out as much as possible,
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so they don't interfere with the image.
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This part of the process is pretty fast.
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Place this on top.
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So now I'm going to turn on toner,
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and toner is going to be dispersed in this hood.
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And you'll see it collect in the areas where your writing was.
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And within minutes, my text from underneath the paper appears.
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And that's it.
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He uses this technique for several things, including fraud.
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Here's an example of a document changed to add an extra zero.
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So this is what it looks like to the naked eye.
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And then this is under the VSC.
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And he also trains election officials to verify signatures.
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Some things that are significant are what to evaluate in signatures,
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what kind of handwriting characteristics to look at of this curved downstroke.
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He fights crime one word at a time and brings those to justice who could otherwise be written off.
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I think it's very important from,
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you know, those threat letters,
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harassing letters, bank robbery notes,
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to even, for example, these financial crimes.
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For justice to be brought forward in some of these instances where something as simple as,
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you know, taking money from somebody else, it's still wrong.
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And there's still a penalty to be paid for that.
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Pharrella Lewis, Washington's Most Wanted.
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Vocabulario y notas de pronunciación para esta lección

Esta lección de conversación de nivel C1 se basa en el vídeo “How forensic scientists fight crime by analyzing handwriting”. Las palabras que más se repiten: writing, letter, handwriting, document, crime. Este vídeo tiene 49 frases y 458 palabras para practicar shadowing. La parte hablada dura 3:05. El hablante mantiene un ritmo constante de unas 148 palabras por minuto, cómodo para el shadowing. El 83 % de las palabras está entre las 3.000 más comunes del inglés; conviene repasar el resto antes de empezar.

Vocabulario clave de este vídeo

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

PalabraPronunciaciónSignificado
handwriting sustantivo/ˈhændɹaɪtɪŋ/escritura manuscrita
specialize verbo/ˈspɛʃəˌlaɪz/especializar
toner sustantivo/ˈtoʊnɚ/tóner
ransom sustantivo/ˈɹæn.səm/rescate
forensic adjetivo/fəˈɹɛn.zɪk/forense
clockwise adverbio/ˈklɒkwaɪz/en el sentido de las agujas del reloj, en sentido horario
disperse verbo/dɪˈspɝs/dispersar
downstroke sustantivo/ˈdaʊnˌstɹoʊk/pedalada hacia abajo
harass verbo/həˈɹæs/acosar, hostigar
imprint sustantivo/ˈɪm.pɹɪnt/impronta
wrinkle sustantivo/ˈɹɪŋkl̩/arruga f ruga, enruga
litter sustantivo/ˈlɪt.ɚ/cama, lecho
forge sustantivo/fɔɹd͡ʒ/forja
analyze verbo/ˈæn.əˌlaɪz/analizar
verify verbo/ˈvɛɹɪfaɪ/verificar

Pronunciación a tener en cuenta

El hablante usa 6 contracciones y formas reducidas, como they're, don't, I'm. Dilas en su forma corta, tal como las oyes.

Sonidos difíciles para hispanohablantes:

  • /v/ — no es /b/: los dientes tocan el labio inferior: verify /ˈvɛɹɪfaɪ/, evaluate /ɪˈvaljʊeɪt/
  • /z/ — sonora, no /s/: specialize /ˈspɛʃəˌlaɪz/, forensic /fəˈɹɛn.zɪk/, clockwise /ˈklɒkwaɪz/, analyze /ˈæn.əˌlaɪz/
  • /h/ — una aspiración suave, no la “j”: handwriting /ˈhændɹaɪtɪŋ/, harass /həˈɹæs/

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 handwriting, specialize, toner.

¿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 →