Prática de Shadowing: Energy Transformations - Aprenda a falar inglês com vídeo

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Energy is all around us.
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We can't see energy, but we can see the things that energy does.
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Energy makes things move.
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It powers the machines we use.
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It can make things get hotter.
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or produce sound.
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Energy is used to light up our homes and cities, and power the vehicles we use.
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Plants and other organisms need energy to live, grow and carry out life processes.
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Energy cannot be created nor can it be destroyed.
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but it can be changed or transformed from one form to another and we can observe this happening around us every day.
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Let's take a look at some examples.
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As each video plays, Write down the energy transformations you think are taking place.
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We'll go through each example at the end so you can check your answers.
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Let's go.
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Number 1 What energy transformation takes place when a ukulele is strummed?
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you you Number 2: What energy transformation takes place when a light bulb is switched on?
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Number 3 What transformation takes place when a match is struck?
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Number 4: What transformation takes place when a drawn bow and arrow is released?
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you you Number 5: What transformation takes place when an electric kettle is switched on.
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Bye.
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- Yeah.
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you 6.
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What energy transformation takes place when a roller coaster rolls down the track?
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Number 7: What transformation takes place when an electric doorbell is pressed?
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Number 8 What energy transformation takes place when a drill is used to secure a screw into wood?
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How'd you go?
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Let's take another look.
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When a ukulele is strummed, kinetic energy is transformed into sound energy.
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When a light bulb is switched on, electrical energy is transformed into light and heat.
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Thank you.
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Bye.
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When a match is struck, kinetic energy and chemical energy is transformed into light and heat.
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When a drawn bow and arrow is released, elastic potential energy is converted into kinetic energy.
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When an electric kettle is switched on, electrical energy is transformed into heat.
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Bye.
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When a roller coaster rolls down the track, gravitational potential energy is transformed into kinetic energy.
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When an electric doorbell is pressed, electrical energy is transformed into kinetic energy and sound.
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When a drill is used to secure a screw into wood, Electrical energy is transformed into kinetic energy,
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Take note that in many of the examples provided, heat and sound are often produced.
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Bye.
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Bye.
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Vocabulário e dicas de fala para esta lição

Esta aula de conversação de nível B1 usa o vídeo “Energy Transformations”. As palavras que mais se repetem: energy, transformation, transformed, kinetic, switched. Este vídeo tem 42 frases e 395 palavras para praticar shadowing. A fala dura 3:56. O falante fala devagar, cerca de 100 palavras por minuto, o que dá tempo para imitar cada som. Apenas 78% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente. 8 das 42 frases são perguntas, por isso é um bom treino para a entonação de perguntas e respostas curtas.

Vocabulário principal deste vídeo

As 15 palavras mais avançadas do vídeo, com pronúncia e significado:

PalavraPronúnciaSignificado
transformation substantivo/ˌtɹæns.fɔɹˈmeɪ.ʃən/transformação
transform verbo/tɹænsˈfɔɹm/transformar
kinetic adjetivo/kɪˈnɛtɪk/cinético
doorbell substantivo/ˈdɔɹ.bɛl/campainha
ukulele substantivo/juː.kəˈleɪ.li/uquelele, uculele
kettle substantivo/ˈkɛ.təl/chaleira, bule
bulb substantivo/ˈbʌlb/bulbo
drill substantivo/dɹɪl/furadeira, berbequim
arrow substantivo/ˈæɹəʊ/flecha, seta
gravitational adjetivo/ˌɡɹævɪˈteɪʃənəl/gravitacional
organism substantivo/ˈɔɹ.ɡəˌnɪz.əm/organismo
elastic adjetivo/ə-/elástico
subscribe verbo/səbˈskɹaɪb/assinar
observe verbo/əbˈzɜːv/seguir, acompanhar
convert verbo/kənˈvɝt/converter, transformar

Phrasal verbs que você vai ouvir

PalavraPronúnciaSignificado
carry out verbo/ˈkæ.ɹi aʊt/carregar
write down verboanotar

Pronúncia para ficar de olho

O falante usa 4 contrações e formas reduzidas, como can't, don't, how'd. Diga-as na forma curta, do jeito que você ouve.

  • Os sons de “sh” e “zh”: transformation /ˌtɹæns.fɔɹˈmeɪ.ʃən/, gravitational /ˌɡɹævɪˈteɪʃənəl/
  • Palavras longas — acerte a sílaba tônica: transformation /ˌtɹæns.fɔɹˈmeɪ.ʃən/, ukulele /juː.kəˈleɪ.li/, gravitational /ˌɡɹævɪˈteɪʃənəl/, organism /ˈɔɹ.ɡəˌnɪz.əm/

Sons difíceis para falantes de português:

  • Consoante final — sem acrescentar um “i” depois: kinetic /kɪˈnɛtɪk/, bulb /ˈbʌlb/, subscribe /səbˈskɹaɪb/, convert /kənˈvɝt/
  • /l/ final — a língua toca o céu da boca, não vira “u”: doorbell /ˈdɔɹ.bɛl/, kettle /ˈkɛ.təl/, drill /dɹɪl/, gravitational /ˌɡɹævɪˈteɪʃənəl/

Como praticar com este vídeo

  1. Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
  2. Faça shadowing frase por frase na velocidade normal, repetindo cada uma até o seu ritmo ficar igual ao do falante.
  3. Grave a sua voz e compare com o original, prestando atenção a palavras como transformation, transform, kinetic.

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 →