Pratique du Shadowing: The Technology Report: Can Batteries Last Forever? - Apprendre l'anglais à l'oral avec YouTube

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28 phrases
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Music From VOA Learning English,
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this is the Technology Report.
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Mia Le Thay is a scientist at the University of California, Irvine.
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She recently discovered a process that could result in batteries lasting forever.
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Ty spoke with VOA Learning English about her discovery.
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She said she was not happy with the lithium-ion batteries in her wireless devices.
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She said that over time,
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they lose their ability to fully charge.
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She said this is because the batteries use nanowires.
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The small wires are extremely thin.
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A human hair is a thousand times thicker than a nanowire, for example.
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As a result, nanowires break easily.
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But they are also effective carriers of electricity.
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Tai had a theory.
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nanowires might last longer if covered.
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She and her team at Irvine experimented with many coverings.
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They found success with PMMA,
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a hard, clear, plastic material.
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The nanowires covered with PMMA cycled through charges 28 times more then uncovered nanowires.
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The PMMA covered wires showed no evidence of damage after 200,000 cycles.
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The results suggest that batteries with covered nanowires might last forever.
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For VOA Learning English, this is the last technology report for Learning English TV.
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But we are not going away.
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We will continue to bring you videos to help you learn American English.
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Go to learningenglish.voanews.com to find new materials and to look for past Learning English TV reports.
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I'm Carolyn Prasuti.
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Thank you for watching and learning with VOA Learning English.
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Thank you.

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Context & Background

In this enlightening video titled "The Technology Report: Can Batteries Last Forever?", Mia Le Thay, a prominent scientist at the University of California, Irvine, discusses her groundbreaking discovery regarding battery technology. Frustrated with the limitations of conventional lithium-ion batteries, she delves into the science of nanowires and their potential for longevity in electronic devices. The dialogue not only highlights the intricacies of battery technology but also serves as a rich resource for English language learners to expand their technical vocabulary and comprehension skills within a practical context.

Top 5 Phrases for Daily Communication

  • "I was not happy with..." - Express dissatisfaction about a situation or item.
  • "They found success with..." - Describe achieving a positive result in experimentation.
  • "The results suggest that..." - Communicate a conclusion drawn from observations or data.
  • "After many cycles..." - Refer to repeated processes or actions, particularly in testing scenarios.
  • "Thank you for watching and learning..." - A polite sign-off that reinforces gratitude and encourages continued engagement.

Step-by-step Shadowing Guide

To effectively improve your English speaking skills using the shadowing technique showcased in this video, follow these steps:

  1. Watch the Video: Before diving into shadowing, watch the video once to familiarize yourself with the content, context, and main ideas.
  2. Listen and Repeat: Play the video again, but this time pause after each sentence or significant phrase. Repeat what you hear, imitating the speaker's intonation and rhythm. This is particularly useful for practicing phrases like "I was not happy with..." or "The results suggest that..."
  3. Take Notes: Jot down any unfamiliar terms or technical phrases. This will support your vocabulary building for future conversations, especially relevant during discussions on technology or science.
  4. Practice Speaking Aloud: Use the extracted phrases in your daily conversations. Integrating these expressions will help you articulate thoughts more clearly in real-life situations and can be beneficial for IELTS speaking practice.
  5. Review and Reflect: After practicing, reflect on your pronunciation and fluency. Play the original audio or video and assess areas where you can improve, adding nuances of the shadowspeaks technique to enhance clarity and expression.

By utilizing resources like this video on a shadowing site, you can combine engaging content with effective methods to learn English with YouTube, making the journey towards fluency not only informative but also enjoyable.

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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