Prática de Shadowing: How Do Our Bodies Move? - Aprenda a falar inglês com vídeo

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Hey there!
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I'm sure you know, like Squeaks here does, that exercise is a really important part of keeping your body healthy and strong.
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And whether you're running a race, playing football, or just doing a whole bunch of jumping jacks, exercise means moving.
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And one SciShow Kids viewer named Autumn wants to know, how does my body move?
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Really awesome question, Autumn!
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Your body is made up of lots of different parts that all have very special jobs.
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To help keep things organized, scientists sometimes group the parts of our bodies into what we call body systems.
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And all of the parts in a certain body system work together to accomplish a goal.
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When it comes to making you move, it takes three body systems working together to get the job done.
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They're called the muscular system, the skeletal system, and the nervous system.
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Ready to check them out?
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Let's start with the muscular system.
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Your muscular system is made of, well, muscles.
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Muscle is the stuff — what scientists call tissue — that allows you to move around.
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Muscles don't just help you to swing a bat or jump to catch a ball.
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Some muscles help you chew, wiggle your nose, stick out your tongue, or even blink.
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And some muscles, like the ones in your back and legs, just help to hold your body upright So you can walk, run, or simply sit.
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Muscle tissue is pretty flexible, kind of like thick rubber or elastic.
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And also like rubber, it can stretch and change shape.
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Let's see how.
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When you bend your arm at the elbow, a muscle called your bicep contracts or squeezes together.
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When it contracts, its shape gets shorter and thicker.
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When you straighten your arm, your bicep relaxes.
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When a muscle relaxes, its shape gets longer and thinner.
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But muscles contracting and relaxing aren't enough to make us move.
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They need to be attached to another part of our body to get the job done.
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And that's where the next system, the skeletal system, comes in.
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The main part of your skeletal system, the skeleton, is made of all your hard, sturdy bones.
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Although we sometimes think of skeletons as dead things, especially around Halloween, that's actually not true.
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Your bones are very much alive, and they have many jobs.
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One of the most important jobs is to support or hold up the rest of your body, and this includes your muscles.
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Strong cords, called tendons, attach your muscles to your bones.
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When a muscle contracts or relaxes, it pulls the bone into a different position, which makes it move.
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But how do your muscles know they're supposed to move at all?
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Well, they know because they're under control of your nervous system.
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The most important part of your nervous system is your brain.
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Your brain is kind of like your body's command center.
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When you decide to move, your brain sends signals to your muscles, giving them specific instructions on what to do.
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Say you're trying to pick up a snack.
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Your brain sends signals to the muscles in your hand and wrist, telling some of them to contract.
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As the muscles contract, they pull the bones in your fingers, so that you can grab the apple.
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Then your brain sends more signals to your arm muscles, telling them to move the bones in your arm, so that you can bring the apple right to your mouth.
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Snack accomplished!
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So it takes the actions of three body systems to help us move — the muscular, skeletal, and nervous systems.
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Autumn, thanks for watching SciShow Kids and asking such a great question!
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And if anyone else has a question for any of us here at the fort, let us know by leaving a comment or emailing us at kids at thescishow .com.
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Thanks guys, see ya later!
📺 Mesmo canal
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Vocabulário e dicas de fala para esta lição

Este vídeo tem 47 frases e 641 palavras para praticar shadowing. A fala dura 3:11. O falante fala rápido, cerca de 202 palavras por minuto, então espere sons ligados e reduzidos. 82% das palavras estão entre as 3.000 mais comuns do inglês; vale a pena estudar o restante antes de começar.

Vocabulário principal deste vídeo

15 palavras menos comuns do vídeo, com pronúncia e significado:

  • muscle /ˈmʌs.əl/ (substantivo) — músculo. A contractile form of tissue which animals use to effect movement.
  • bone /boʊn/ (substantivo) — osso. A composite material consisting largely of calcium phosphate and collagen and making up the skeleton of most vertebrates.
  • relax /ɹɪˈlæks/ (verbo) — soltar, afrouxar. To make something loose.
  • muscular /ˈmʌs.kjʊl.ə/ (adjetivo) — musculoso. Of, relating to, or connected with muscles.
  • thick /θɪk/ (adjetivo) — espesso, grosso. Relatively great in extent from one surface to the opposite in its smallest solid dimension.
  • tissue /ˈtɪʃ.(j)u/ (substantivo) — tecido. Thin, woven, gauzelike fabric.
  • rubber /ˈɹʌbɚ/ (substantivo) — borracha. Pliable material derived from the sap of the rubber tree; a hydrocarbon biopolymer of isoprene.
  • scientist /ˈsaɪəntəst/ (substantivo) — cientista. One whose activities make use of the scientific method to answer questions regarding the measurable universe. A scientist may be involved in original research…
  • accomplish /əˈkɑm.plɪʃ/ (verbo) — conseguir. To finish successfully.
  • snack /snæk/ (substantivo) — lanche, comidinha. A light meal.
  • skeleton /ˈskɛlətən/ (substantivo) — esqueleto. The system that provides support to an organism, where in vertebrates it is internal and consists of bones and cartilage, and external in some other animals.
  • attach /əˈtæt͡ʃ/ (verbo) — anexar. To fasten, to join to (literally and figuratively).
  • finger /ˈfɪŋɡɚ/ (substantivo) — dedo (da mão). A slender jointed extremity of the human hand, (often) exclusive of the thumb, and the corresponding part, irrespective of including a thumb, in many other…
  • thin /ˈθɪn/ (adjetivo) — fino. Having little thickness or extent from one surface to its opposite.
  • fort /fɔɹt/ (substantivo) — forte. A fortified defensive structure stationed with troops.

Phrasal verbs que você vai ouvir

  • pick up (verbo) — pegar. To lift; to grasp and raise.
  • stick out (verbo) — sobressair. To protrude.

Pronúncia para ficar de olho

O falante usa 8 contrações e formas reduzidas, como they're, you're, aren't. Diga-as na forma curta, do jeito que você ouve.

  • Os sons de “th”: thick /θɪk/, thin /ˈθɪn/
  • Os sons de “sh” e “zh”: tissue /ˈtɪʃ.(j)u/, accomplish /əˈkɑm.plɪʃ/, instruction /ɪnˈstɹʌkʃən/

Como praticar com este vídeo

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

Gramática neste vídeo

As estruturas que o falante mais usa, com as palavras exatas do vídeo:

EstruturaNo vídeo
Voz passiva be + particípio passado — o foco está no que acontece, não em quem fazis made · be attached
Superlativos the -est / the most … — o maior ou o menor de um grupothe most important
Present continuous am/is/are + -ing — algo que está acontecendo agora ou nestes diasyou're running · you're trying

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 →