Pratique du Shadowing: What Is the Greenhouse Effect? - Apprendre l'anglais à l'oral avec YouTube

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What is the greenhouse effect?
26 phrases
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What is the greenhouse effect?
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Earth is a comfortable place for living things.
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It’s just the right temperatures for plants and animals – including humans – to thrive.
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Why is Earth so special?
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Well, one reason is: the greenhouse effect!
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A greenhouse is a building with glass walls and a glass roof.
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The clear glass allows sunlight to shine into the greenhouse, while also trapping the Sun’s heat inside.
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This is how a greenhouse keeps plants warm, even at night and in the winter.
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The greenhouse effect keeps Earth warm in pretty much the same way.
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Earth isn’t surrounded by glass, but it is surrounded by a jacket of gases called the atmosphere.
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In the daytime, the Sun shines through the atmosphere warming Earth’s surface.
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After the Sun goes down, Earth’s surface cools.
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This releases heat back into the air.
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But, some of that heat is trapped by the gases in the atmosphere.
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These heat-trapping gases are called greenhouse gases.
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Carbon dioxide, water vapor and methane are all examples of greenhouse gases.
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Earth needs a balance of greenhouse gases to maintain just the right temperature for living things.
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But, some human activities are changing Earth’s natural greenhouse effect.
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For example, burning fossil fuels – like coal and oil – releases more carbon dioxide into our atmosphere.
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These extra greenhouse gases can cause the atmosphere to trap more and more heat, leading to a warmer Earth.
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NASA satellites are constantly measuring the gases in our atmosphere from space.
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They have observed increases in the amount of carbon dioxide and other greenhouse gases.
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The information from NASA satellites can help scientists figure out where greenhouse gases are coming from and how they are ending up in our atmosphere.
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This information will help us better understand the impact that greenhouse gases have on our climate.
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And help us better understand this very special greenhouse that we call home.
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Find out more about our Earth at NASA Climate Kids!

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Speaking Goals for This Clip: Mastering Explanatory Fluency

Want to sound confident when explaining scientific ideas in English? This video is perfect for practicing clear, step-by-step descriptions—key for IELTS speaking practice and everyday fluency. You’ll learn to connect ideas smoothly, like how the video links a greenhouse to Earth’s atmosphere. By shadowing (or "shadowspeak") the dialogue, you’ll build the ability to explain complex concepts in simple terms, a milestone for advanced conversational skills.

Phrase Bank: Reusable Expressions for Clear Explanations

  • "Why is [X] so special? Well, one reason is..." – Great for introducing key points.
  • "[X] works in pretty much the same way" – Useful for making comparisons.
  • "For example, [activity] releases more [gas] into our atmosphere" – Perfect for supporting ideas with examples.
  • "This information will help us better understand [topic]" – A natural way to conclude a explanation.

These phrases are gold for learn english with youtube practice—they work in academic discussions, daily conversations, and even IELTS speaking practice.

Fix Your Weak Spots: Pronunciation & Rhythm of Scientific Terms

The video’s steady, clear pace makes it ideal for shadow speak (repeating aloud while listening). Notice how words like "greenhouse," "atmosphere," and "carbon dioxide" are stressed—the first syllable in "greenhouse" is strong, while "atmosphere" has a soft "sphere" at the end. Mispronouncing these can confuse listeners, so use the video to improve english pronunciation. Also, pay attention to the rhythm of longer sentences: "These extra greenhouse gases can cause the atmosphere to trap more and more heat, leading to a warmer Earth." Practice pausing after commas to match the natural flow. This is how shadowspeak helps you sound more like a native—by copying not just words, but the music of the language.

Ready to try? Play a short clip, pause, and repeat. Focus on matching the tone and speed. Over time, you’ll notice your fluency growing—one shadowed sentence at a time.

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.