Prática de Shadowing: Scuba Diving Risks - Decompression Sickness - Aprenda a falar inglês com vídeo

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Decompression sickness occurred for the first time when workers surfaced from their pressurised workspace,
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the casson, without step -by -step pressure equalisation.
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The sickness can be caused by several different factors, including the dive time, the depth, and the surfacing method.
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Decompression sickness can be caused by diving too long or by surfacing too quickly, unless Yes, several life -saving rules are observed.
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With increasing ambient pressure, the nitrogen contained in the air you breathe dissolves in your blood.
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In order to keep the nitrogen dissolved when resurfacing, when the ambient pressure decreases, it's vital not to ascend too quickly.
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This is why it's very important to achieve a controlled ascent of not more than 10 metres per minute.
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If the pressure decreases too quickly, nitrogen bubbles form in blood and body tissue as not enough can be breathed out.
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The bubbles in the blood are similar to champagne bubbles that form after you open the bottle.
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This is also a pressure drop.
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Even with light decompression sickness, the bubbles can cause itching skin.
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In fact, this
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This is usually the first sign of decompression sickness.
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These creeps can also be the starting signs of a serious illness.
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Obese divers may feel stomach pains because the nitrogen is carried off more slowly from fatty tissue,
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which has less effective blood circulation than muscle tissue.
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This is why fat is considered slow tissue.
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Heart and skeletal muscles are examples of fast tissues.
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Sometimes a diver will suffer from the bends.
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These manifest themselves in the form of aching muscles,
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joints and bones and are caused by nitrogen bubbles gathering in the afflicted areas.
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Temporary paralysis can occur.
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The casualty may feel such strong pain that he writhes in agony.
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If the bubbles form in the brain, or in the central nervous system, certain nerves may become paralysed or even paraplegia can occur.
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In the brain, the bubbles can cause hallucinations or blindness, and sometimes they lead to death.
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If decompression times are disregarded, gas bubbles can form in the bloodstream.
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If bubbles gather in the lung, they can cause acute respiratory depression,
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coughing and anxiety and possibly also cardiac arrest.
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Gas bubbles cutting off the coronary arteries can also lead to a heart attack.

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Vocabulário e dicas de fala para esta lição

Esta aula de conversação usa o vídeo “Scuba Diving Risks - Decompression Sickness”. As palavras que mais se repetem: bubbles, decompression, nitrogen, sickness, tissue. Este vídeo tem 29 frases e 372 palavras para praticar shadowing. A fala dura 2:58. O falante mantém um ritmo estável de cerca de 125 palavras por minuto, confortável para o shadowing. Apenas 72% 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:

PalavraPronúnciaSignificado
bubble substantivo/ˈbʌbəl/bolha, borbulha
tissue substantivo/ˈtɪʃ.(j)u/tecido
sickness substantivo/ˈsɪknɪs/doença
nitrogen substantivo/ˈnaɪ.tɹə.d͡ʒən/azoto, nitrogênio
occur verbo/əˈkɜː/ocorrer, acontecer
muscle substantivo/ˈmʌs.əl/músculo
breathe verbo/bɹiːð/respirar
gather verbo/ˈɡæðɚ/colher
decrease verbo/dɪˈkɹiːs/diminuir, reduzir
dive verbo/daɪv/mergulhar
ambient adjetivo/ˈæm.bi.ənt/ambiente
temporary adjetivo/ˈtɛmp(əˌɹ)ɛɹi/temporário
bone substantivo/boʊn/osso
anxiety substantivo/æŋˈzaɪ.əti/angústia, ansiedade
suffer verbo/ˈsʌfɚ/sofrer

Phrasal verbs que você vai ouvir

PalavraPronúnciaSignificado
cut off verbo/ˌkʌt ˈɔf/ [ˌkɐɾ ˈɔf]recortar

Pronúncia para ficar de olho

  • Os sons de “th”: breathe /bɹiːð/, gather /ˈɡæðɚ/, writhe /ɹaɪð/
  • Os sons de “sh” e “zh”: tissue /ˈtɪʃ.(j)u/, circulation /ˌsɝkjʊˈleɪʃən/, champagne /ʃæmˈpeɪn/, casualty /ˈkæʒu.əlti/, decompression /ˌdiːkəmˈpɹɛʃən/
  • Palavras longas — acerte a sílaba tônica: temporary /ˈtɛmp(əˌɹ)ɛɹi/, anxiety /æŋˈzaɪ.əti/, circulation /ˌsɝkjʊˈleɪʃən/, respiratory /ɹɪˈspɪ.ɹət.ə.ɹi/, casualty /ˈkæʒu.əlti/

Sons difíceis para falantes de português:

  • Consoante final — sem acrescentar um “i” depois: ambient /ˈæm.bi.ənt/, stomach /ˈstʌmək/, bend /bɛnd/, acute /əˈkjut/, cardiac /ˈkɑɹdiˌæk/
  • /l/ final — a língua toca o céu da boca, não vira “u”: bubble /ˈbʌbəl/, muscle /ˈmʌs.əl/, vital /ˈvaɪtəl/, skeletal /ˈskɛl.ə.təl/
  • s + consoante no início — sem um “i” antes: stomach /ˈstʌmək/, skeletal /ˈskɛl.ə.təl/

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 bubble, tissue, sickness.

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 →