Prática de Shadowing: IELTS listening practice Part 4 - the A.U.V (answer & transcript) - Aprenda a falar inglês com vídeo

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Autonomous underwater vehicle, or AUV.
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It actually resembles a miniature airplane that moves deep in the ocean.
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It's not large enough to have a human crew aboard, and so its behavior is really that of a robot.
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The AUV is programmed to calculate
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and record a range of data depending on the mission it is carrying out at any one time.
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On previous missions, it has been programmed to record water pressure, as well as how much salt there is in the water.
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On a more recent mission around Bermuda, an AUV was equipped with a special instrument that showed the temperature of the ocean at different depths.
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It can also assess the quality of the water in general.
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So, as you see, it is quite a versatile and useful little piece of equipment.
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We use its measurements to determine
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and increase our understanding of ocean behaviors as well as its role in and influence on our climate.
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This instrument also has many other benefits.
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It can be launched and used relatively quickly.
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Also, there's no need for cables to physically link it to a boat.
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There are disadvantages, though.
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AUVs move at only modest speeds, up to 25 centimeters per second.
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In addition, the AUV structure cannot collect water samples, so other equipment must be used to conduct a chemical analysis of the water.
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Now, I'm sure you're all wondering how the AUV actually works.
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First, let's see how an AUV actually moves.
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L. It moves by pumping oil between two bladders.
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This helps the AUV to sink or float.
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The AUV records the data and measurements that it has been programmed to take while it rises to the surface.
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At the beginning and end of each dive, it obtains records and transmits its position by exposing an antenna embedded within the tip of the right wing.
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Okay, so that's the AU.
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Thank you.
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Thank you.
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Thank you.
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Thank you.
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Vocabulário e dicas de fala para esta lição

Esta aula de conversação usa o vídeo “IELTS listening practice Part 4 - the A.U.V”. As palavras que mais se repetem: Auv, record, programmed, ocean, mission. Este vídeo tem 28 frases e 320 palavras para praticar shadowing. A fala dura 3:51. O falante fala devagar, cerca de 83 palavras por minuto, o que dá tempo para imitar cada som. Apenas 81% 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
instrument substantivo/ˈɪnstɹəmənt/instrumento, aparelho
measurement substantivo/ˈmɛʒ.ə.mənt/medida, medição
obtain verbo/əbˈteɪn/obter
collect verbo/ˈkɑlɪkt/juntar, reunir
physically advérbio/ˈfɪz.ɪ.kli/fisicamente
pump substantivo/pʌmp/bomba
robot substantivo/ˈɹoʊ.bɑt/robot, robô
sink verbo/ˈsɪŋk/afundar, submergir
depend verbo/dɪˈpɛnd/depender
aboard advérbio/əˈbɔɹd/a bordo
dive verbo/daɪv/mergulhar
assess verbo/əˈsɛs/estimar, avaliar
modest adjetivo/ˈmɑdəst/modesto
expose verbo/ɪkˈspoʊz/expor, revelar
float verbo/fləʊt/boiar, flutuar

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 programmed · has been programmed · was equipped
Present perfect have/has + particípio passado — uma ação passada que ainda importa agorahas been programmed

Pronúncia para ficar de olho

  • Palavras longas — acerte a sílaba tônica: underwater /ʌndɚˈwɔtəɹ/, autonomous /ɔˈtɑnəməs/, miniature /ˈmɪn.(i)ə.tʃəɹ/, disadvantage /ˌdɪsədˈvæntɪd͡ʒ/

Sons difíceis para falantes de português:

  • Consoante final — sem acrescentar um “i” depois: instrument /ˈɪnstɹəmənt/, measurement /ˈmɛʒ.ə.mənt/, collect /ˈkɑlɪkt/, pump /pʌmp/, robot /ˈɹoʊ.bɑt/
  • /l/ final — a língua toca o céu da boca, não vira “u”: resemble /ɹɪˈzɛmbəl/, versatile /ˈvɜː.səˌtaɪl/

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 instrument, measurement, obtain.

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 →