Prática de Shadowing: 20 Test Practice Track 03 - Aprenda a falar inglês com vídeo

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Test practice track 3.
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You will hear a university lecturer giving a talk about teaching physics to children.
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First, you will have some time to look at questions 1 to 10.
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Now listen carefully and answer questions 1 to 10.
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Good afternoon, everyone.
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We've been looking at different ways that, as teachers, you can make science fun in the classroom.
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And today I'm going to be talking about physics.
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Now the concepts of physics can be very difficult for children to understand, but they can also be really fun.
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So I'm going to describe a few experiments that will show children not only how exciting, but also how useful physics can be.
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The first experiment is based on what's known as the Brazil nut effect.
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It came about because physicists wondered why, when you open a container of mixed nuts, the largest Brazil nuts always seem to end up at the top.
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The great thing is that to demonstrate what's happening, you don't need a lot of equipment.
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Just a glass jar with a lid, a marble, so just a normal glass marble that children typically play with, and some sand.
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Just enough to fill the jar about three quarters full, and so there's still room for it to move about easily.
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Then you put the marble into the jar, put on the lid and shake it vigorously.
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Now before you show the results, ask your students to try and predict what will happen to the marble as you shake the jar.
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They're likely to make the same initial assumption as the physicists, which is that because the marble is heavier,
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it will sink down and end up at the bottom of the jar
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but in fact no matter how hard you shake it the marble will remain at
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or near the top that's
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because with a granular mixture like this the largest particles always end up on top when you shake it
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now it always helps to increase interest in science
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if you can show it has a real -world application
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and in this case it's proven to be very important in the field of healthcare,
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because scientists realise that if a patient is given medication in a powdered form, and it's made up of components of different densities,
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then those individual components may not mix together very evenly in the bottle.
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So they're now very careful to take this into account.
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Okay, our second experiment is the unpoppable balloon.
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This one is always fun.
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It requires an inflated balloon, a pin, and, the secret ingredient, a piece of sticky tape,
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which you're going to secretly apply to the side of the balloon.
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So don't show the students you've done this.
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Again, it's best to invite your class to predict the results.
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So hold up the balloon and the pin and ask them what will happen when you stick it in the balloon.
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They'll no doubt tell you that there'll be a very loud bang.
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However, if you stick the pin into your specially prepared section, to their surprise, rather than bursting,
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the air will leak out very quietly and slowly, and you can tell your students that when a balloon does burst,
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it does so faster than the speed of sound, creating a sonic boom.
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In the real world, this principle is used to test out the limits of different materials
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and to see just how elastic they are and how much stress can be put on them.
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The final experiment I want to recommend is great for demonstrating momentum and I call this one the arm engine.
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To do this experiment, you're going to need a chair that can swivel or rotate as well as some small hand weights.
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Get one of your students to sit on the chair holding the weights in their hands.
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Then ask another student to spin the chair as fast as they can.
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I'm sure your students will love the results of this one because they'll find that, depending on how they hold the weights,
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the students sitting in the chair will be able to alter their own speed.
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So when they hold the weights out and make themselves as wide as possible, they'll slow right down.
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But if they make themselves smaller, with the weights tucked right in next to their body,
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they'll be amazed to see that they can accelerate and start to spin faster again all by themselves.
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The whole class is sure to want to try it out.
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When it comes to the real -world application, tell your students that they can observe this principle at work from watching the ice skating at the Winter Olympics.
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They'll see how the competitors manage to spin incredibly fast just by tucking their hands in really close to their body.
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So these are just a few ideas for teaching physics.

Sobre esta aula

Nesta aula, você vai praticar inglês com vídeos que mostram experimentos de física divertidos para crianças. O vídeo apresenta um professor universitário explicando três experiências interativas, perfeitas para treinar sua compreensão auditiva e pronúncia. Ao acompanhar a fala do professor, você vai aprender a lidar com uma velocidade natural e tons educativos, além de expandir seu vocabulário técnico. É uma oportunidade incrível para combinar aprendizado de ciência com a prática de inglês!

Vocabulário e frases chave

  • Brazil nut effect: Efeito da noz - brasileira (fenômeno em que partículas maiores sobem ao topo de uma mistura granular).
  • Granular mixture: Mistura granular (substâncias compostas por partículas pequenas, como areia).
  • Sonic boom: Boom sónico (ruído causado por um objeto que ultrapassa a velocidade do som).
  • Momentum: Momento (quantidade de movimento de um objeto).
  • Swivel chair: Cadeira giratória (cadeira que pode rodar 360 graus).

Dicas de prática (shadowing)

Para melhorar sua pronúncia e fluência, use a técnica de shadowing (imitar a fala imediatamente após ouvir). O professor fala com uma velocidade média e clareza, ideal para iniciantes. Comece pausando o vídeo a cada frase, repita em voz alta, tentando igualar o tom e a entonação. Depois, tente acompanhar sem pausas. Lembre - se: o objetivo é se acostumar com a naturalidade da fala em inglês. Use um shadowing site para gravar sua voz e comparar com o original. Essa prática, conhecida também como shadowspeak ou shadow speech, ajuda a treinar a audição e a articulação ao mesmo tempo. Divirta - se com os experimentos e deixe que a curiosidade motive seu aprendizado!

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.

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