Prática de Shadowing: How To Kill A Volcano - Aprenda a falar inglês com vídeo

Volcanoes are one of the most powerful forces on Earth.

Their lava can destroy cities and their ash clouds can blot out the sun.

And there is basically nothing we can do to make sure a volcano will never erupt again, except wait for it to die.

So while we wait, what is it exactly that kills a volcano?

Hi, I'm Cameron and this is MinuteEarth.

There are three main ways a volcano can die, and the first is if its supply of magma fizzles out.

together or pulling apart of tectonic plates can cause magma to form, but when those plates fuse together, the magma forming activity stops, snuffing out the volcano.

Poland's Kachowsky Hills and Foothills has a whole national park devoted to volcanoes that suffered this fate.

Locals call it the land of extinct volcanoes.

The second way a volcano can die is if it gets dragged away from its magma supply.

Sometimes, weird conditions in specific places can melt the mantle, sending up a plume of melting mantle rock,

known as a hotspot, that pools beneath the crust and can birth a volcano.

The hotspot itself doesn't ever move, but the Earth's crust above it does, so the volcano will eventually leave its magma supply behind.

But since the hotspot itself is still there, when one volcano dies in this way, a new one might form next to it, and then a new one forms next to that, and so on.

The Hawaiian Islands, for instance, are the newest volcanoes formed by a hotspot that

that has left a trail of dead volcanoes that stretches all the way to Russia.

The third way a volcano can die is if it gets clogged.

Like, if conditions in the mantle change and the magma flow slows down, the magma that's already in the volcano's vents can cool, hardening into a giant plug.

50 million years later, that plug might be all that's left of the volcano.

Or, if the volcano's vents somehow get damaged, the magma might not be able to escape.

In these cases, the remaining magma will often find its way to a different spot nearby, where it can escape.

That's likely what happened when, in a spectacular eruption, the largest ever actually, a volcano called Toba clogged itself.

Evidence suggests that the magma from its chamber got rerouted to nearby Cinnabon, which is still active today.

Of course, it's really, really hard to tell exactly what's going on underneath a volcano, so we're not always sure what has happened to a volcano.

In fact, sometimes it's hard to tell whether a volcano is actually dead.

Udurunko in Bolivia hasn't erupted in 250,000 years, so scientists assumed it was long gone, but recently it started rumbling again,

suggesting the possibility of future volcanic activity.

It turns out that Udurunko, and other quiet volcanoes like it, might not be dead after all.

Instead, they could be taking magma-nificently long naps.

📺 Mesmo canal

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Vocabulário e dicas de fala para esta lição

Este vídeo tem 29 frases e 492 palavras para praticar shadowing. A fala dura 2:39. O falante fala rápido, cerca de 185 palavras por minuto, então espere sons ligados e reduzidos. Apenas 74% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente.

Vocabulário principal deste vídeo

15 palavras do vídeo que vale a pena aprender, com pronúncia e significado:

Palavra	Pronúncia	Significado
volcano substantivo	/vɑlˈkeɪ.noʊ/	vulcão
mantle substantivo	/ˈmæn.təl/	manto
plug substantivo	/plʌɡ/	plugue
melt verbo	/mɛlt/	derreter, fundir
vent substantivo	/vɛnt/	respiradouro
crust substantivo	/kɹʌst/	crosta
chamber substantivo	/ˈt͡ʃeɪ̯mbɚ/	câmara, quarto
cloud substantivo	/ˈklaʊ̯d/	nuvem, nimbo
suffer verbo	/ˈsʌfɚ/	sofrer
trail substantivo	/tɹeɪl/	rasto, rastro
fate substantivo	/feɪt/	destino, fado
stretch verbo	/stɹɛt͡ʃ/	esticar
drag verbo	/dɹæɡ/	arrastar
beneath	/bɪˈniːθ/	embaixo de
scientist substantivo	/ˈsaɪəntəst/	cientista

Phrasal verbs que você vai ouvir

Palavra	Significado
slow down verbo	desacelerar
turn out verbo	terminar

Pronúncia para ficar de olho

O falante usa 4 contrações e formas reduzidas, como doesn't, hasn't, I'm. Diga-as na forma curta, do jeito que você ouve.

Os sons de “th”: beneath /bɪˈniːθ/, underneath /ˌʌndɚˈniθ/

Como praticar com este vídeo

Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
Comece na velocidade 0,75×, faça shadowing frase por frase e volte à velocidade normal quando ficar fácil.
Grave a sua voz e compare com o original, prestando atenção a palavras como volcano, mantle, plug.

O que é a Técnica de Shadowing?

Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.

Técnica de shadowing: leia o guia completo passo a passo →

Prática de Shadowing: How To Kill A Volcano - Aprenda a falar inglês com vídeo

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