Pratique du Shadowing: Build Earth from the Inside Out! - #sciencegoals - Apprendre l'anglais à l'oral avec la vidéo

Création de la leçon...
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Our planet is an amazing place … but there are parts of it that no one has ever seen!
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Like where?
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Like in the middle!
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No one has ever been to the center of the Earth, not even close!
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The deepest hole that’s ever been dug didn’t even make it through the thinnest, outer layer of Earth’s four amazing layers.
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But even if you could go deeper than that, you’d have a really hard time digging!
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Because those inner layers of the Earth get really hot!
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So today, we’re going to get as close as we can to seeing the center of the Earth, by building a model of our planet!
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First, let’s go through what we know about Earth’s four main layers.
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The first layer is the one you’re on right now!
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It’s called the crust.
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The crust is the outermost layer of our planet, and it includes all of the land you can see … as well as the land that you can’t see, like the very bottom of the ocean.
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The crust is also the thinnest of Earth’s layers.
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But even so, we’ve never been able to dig all the way through it!
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The crust is nice and cool on the outside, but once you dig down a kilometer or so, it starts to get really warm really fast.
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And the deeper you go, the hotter it gets!
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By the time you reach the bottom of the crust, it’s too hot for anything to live in!
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Now, after the crust comes the second layer: the mantle.
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It’s the thickest of all of Earth’s layers.
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This layer is so hot that the rocks that make up the mantle are actually melted!
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But we’re not done yet!
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The third layer is the outer core, and beneath that, at the very center of the Earth, is the fourth layer, the inner core, the hottest of all the layers!
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Now that we know each of the Earth’s layers, we can make a model of our planet, from the inside out!
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All you’ll need is a bunch of different colors of art clay.
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You can use whatever colors you like.
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But I’m going to use red, orange, yellow, brown, green, and blue.
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Each layer in our model is going to have its own color, so we can tell them apart.
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Now, what kind of temperature do you think of when you think of the color red?
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I think hot!
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So let’s use red for the hottest layer, the inner core.
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Orange doesn’t seem as hot to me, but it does seem warmer than yellow, so we’ll use orange for the outer core.
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Then let’s use yellow for the mantle, and brown for the coolest layer, the crust.
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But what about the green and blue?
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We can use these colors to make the continents and the oceans, that is, the big masses of land and water, they’re parts of the crust, too.
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Ok, so, let’s start with our innermost layer, the inner core.
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We’ll take some red clay and roll it into a ball between our hands.
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Once we have our inner core, let’s take some orange clay and wrap that around the red ball.
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Our Earth is growing!
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And the outer core is... almost done.
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There! Next, we’ll put on a layer of yellow, which will be our mantle.
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Do you remember what’s special about this layer?
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The mantle is the thickest of Earth’s layers!
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So let’s add a little bit of extra yellow to make sure it’s nice and thick.
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This looks great!
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Now we’ll cover the mantle with brown, for our crust.
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The crust is the thinnest layer, so we won’t use as much clay for that.
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There we go!
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We got the crust done!
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But we still have the blue and green left over to make continents and oceans.
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You can shape the continents to make them look like they do on your globe, or you can make them look however you like.
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It’s your model after all!
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This looks great!
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But now that our model of Earth is done, we can’t see the layers inside.
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So let’s ask a grown-up for help, because I have an idea!
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Ask them to find a butterknife and very carefully cut your globe in half.
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Ooooo! Look at that!
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You can see all of the layers.
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On the outside is the crust, second is the big yellow mantle, next is the outer core, and finally the very middle is the inner core.
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That’s right Squeaks, it does look really cool!
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But there are lots of other ways you can make your own Earth!
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You can try making Earth’s layers with colored construction paper.
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Or if you want to take a more delicious route, you and a grown up can make a four-layered cake, with each layer colored to represent a layer of the Earth!
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Get creative and have fun!
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Thank you for joining Squeaks and me to create the Earth from the inside out, and we’d like to give a big thank you to Google Making Science for helping us make this episode!
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Do you have a globe you want to share with us?
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Or do you have more questions about Earth?
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We’d love to hear from you!
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Just grab a grown-up and leave us a comment down below, or send us an e-mail to [email protected].
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And we’ll see you next time!
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Vocabulaire et conseils d’expression pour cette leçon

Cette vidéo contient 69 phrases et 904 mots à répéter en shadowing. La partie parlée dure 5:19. Le locuteur parle à un rythme naturel d’environ 170 mots par minute, proche d’une conversation courante. 86 % des mots font partie des 3 000 mots les plus courants en anglais ; le reste mérite d’être vu avant de commencer.

Vocabulaire clé de cette vidéo

15 mots moins courants de la vidéo, avec leur prononciation et leur sens :

  • layer /ˈleɪ̯ɚ/ (nom) — couche. A single thickness of some material covering a surface.
  • mantle /ˈmæn.təl/ (nom) — manteau. A piece of clothing somewhat like an open robe or cloak, especially that worn by Orthodox bishops.
  • clay /kleɪ/ (nom) — argile, glaise. A mineral substance made up of small crystals of silica and alumina, that is ductile when moist; the material of pre-fired ceramics.
  • thin /ˈθɪn/ (adjectif) — mince. Having little thickness or extent from one surface to its opposite.
  • thick /θɪk/ (adjectif) — épais, gros. Relatively great in extent from one surface to the opposite in its smallest solid dimension.
  • globe /ɡloʊb/ (nom) — globe. The eyeball.
  • continent /ˈkɑntɪnənt/ (nom) — continent. One of the main contiguous landmasses, separated by water or geological features, on the surface of a planet, sometimes including its continental shelves and…
  • carefully /ˈkɛɹf(ə)li/ (adverbe) — soigneusement. With care; attentively, circumspectly.
  • delicious /dɪˈlɪ.ʃəs/ (adjectif) — délicieux, savoureux. Pleasing to the sense of taste; tasty.
  • outer /ˈaʊtɚ/ (adjectif) — extérieur, externe. Outside; external.
  • beneath /bɪˈniːθ/ — sous. Below.
  • dig /dɪɡ/ (verbe) — creuser. To move hard-packed earth out of the way, especially downward to make a hole with a shovel. Or to drill, or the like, through rocks, roads, or the like. More…
  • wrap /ɹæp/ (verbe) — envelopper, emballer. To enclose (an object) completely in any flexible, thin material such as fabric or paper.
  • melt /mɛlt/ (verbe) — fondre, se dissoudre. To change (or to be changed) from a solid state to a liquid state, usually by a gradual heat.
  • kilometre /kɪˈlɑmɪtəɹ/ (nom) — kilomètre. An SI unit of length equal to 10³ metres. Symbol: km

Les verbes à particule que vous entendrez

  • grow up (verbe) — grandir. To mature and become an adult.
  • go through (verbe) — traverser. To travel from one end of something to the other.
  • look at (verbe) — regarder. To observe or watch.
  • make up /ˌmeɪk ˈʌp/ (verbe) — constituer, composer. To constitute, to compose.
  • put on /ˌpʊt ˈɒn/ (verbe) — mettre, enfiler. To don (clothing, equipment, or the like).

Prononciation à surveiller

Le locuteur utilise 20 contractions et formes réduites, comme we'll, can't, we'd. Prononcez-les sous leur forme courte, telles que vous les entendez.

  • Les sons « th »: thin /ˈθɪn/, thick /θɪk/, beneath /bɪˈniːθ/

Comment s’entraîner avec cette vidéo

  1. Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
  2. Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
  3. Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme layer, mantle, clay.

La grammaire de cette vidéo

Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :

StructureDans la vidéo
Present perfect have/has + participe passé — une action passée qui compte encore maintenanthas ever seen · has ever been · we've never been
Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le faitbeen dug · are actually melted · is done
Superlatifs the -est / the most … — le plus haut ou le plus bas d’un groupeThe deepest · the thinnest · the thickest
Comparatifs -er than / more … than — comparer deux élémentsdeeper than · warmer than

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.

Technique du shadowing : lire le guide complet étape par étape →