Pratique du Shadowing: Phát âm chuẩn - Anh ngữ đặc biệt: A Gene for Gray Hair Identified (VOA) - Apprendre l'anglais à l'oral avec YouTube

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From VOA Learning English, this is the Health Report.
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From VOA Learning English, this is the Health Report.
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Researchers say they have identified a gene that can predict if you will have gray hair.
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The gene IRF4 was found and studied from the genetic codes of more than 6,300 people from Brazil,
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Colombia, Chile, Mexico and Peru.
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The group included people of mixed European,
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Native American and African ancestries.
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The IRF4 gene controls melanin production,
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which is responsible for the color of hair, skin, and eyes.
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Andres Ruiz-Lenares is a professor of human genetics at University College London.
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He is the paper's lead author.
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He and his team identified a special gene found in about 15% of people with European ancestry.
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The people who carry this gene are more likely to have early gray hair.
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The researchers found that Native Americans do not carry this gene.
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The researchers say that gray hair is not influenced just by genetics,
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stress, or a terrible event can also contribute to a gray head of hair.
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The researchers say this study could be helpful to developers of hair care products.
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It could lead to treatments that may prevent or reverse the process that turns hair gray.
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The study also identified genes for other hair qualities.
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These included curly hair, beard, and eyebrow thickness.
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Ruiz Linares says linking genes to hair qualities is important.
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He says it could lead to better analysis of genetic information collected at crime scenes.
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The journal Nature Communications published the study.
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For VOA Learning English, I'm Carolyn Prasuti.

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Why practice speaking with this video?

Engaging with the video titled "A Gene for Gray Hair Identified" is a valuable opportunity for learners who want to improve English pronunciation and expand their vocabulary in a scientific context. The health report discusses an exciting advancement in genetics, specifically through the study of the IRF4 gene linked to gray hair. This topic not only helps enhance your comprehension skills but also provides a chance to practice speaking through repetition and shadowing technique. By emulating the speaker, you can develop clarity in your speech and increase your confidence when discussing complex subjects. Incorporating this video into your routine allows you to learn English with YouTube, making language acquisition both enjoyable and contextually relevant.

Grammar & Expressions in Context

In this report, the speaker employs several grammatical structures and expressions that are beneficial for learners:

  • Passive Voice: "A gene that can predict if you will have gray hair was identified." Understanding the passive voice is crucial for discussing scientific findings where the focus is on the action and not on who performed it.
  • Conditional Sentences: "If you carry this gene, you are more likely to have early gray hair." Conditional sentences help express possibilities and consequences, which is quite useful in discussions related to genetics and health.
  • Present Perfect Tense: "The researchers have found that Native Americans do not carry this gene." This tense is essential in English for indicating actions that have relevance to the present moment.

Using these structures correctly in your speech can significantly enhance your IELTS speaking practice skills, especially when discussing academic topics.

Common Pronunciation Traps

While watching the video, pay attention to some tricky words that may pose pronunciation challenges:

  • Melanin: This term refers to pigments responsible for color. Ensure you emphasize the ‘-in’ sound distinctly.
  • Ancestry: The stress typically falls on the first syllable: AN-ces-try. Mastering this will help with clarity in your discussions regarding heritage and genetics.
  • Researchers: A common mistake is to blend syllables; make sure to pronounce it as re-search-ers to maintain clarity.

By focusing on these challenging words and employing the shadowing technique, you'll not only enhance your ability to articulate complex subjects but also cultivate a clearer and more confident speaking voice.

Qu'est-ce que la technique du Shadowing ?

Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.

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