Prática de Shadowing: 3M™ Clean-Trace™ ATP Monitoring System Environmental Surfaces Sampling - Aprenda a falar inglês com vídeo

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Hello and welcome to the 3M Lab.
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In this video, you will learn how to collect a sample from a high-touch
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surface to measure cleaning efficacy using the 3M CleanTrace ATP monitoring system.
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You will need a 3M CleanTrace ATP Surface Test UXC and the 3M CleanTrace Luminometer LX25.
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Before you begin, make sure your surface is dry.
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When you are ready to collect your sample, remove the Surface Test UXC from the device sleeve, taking care to touch only the blue handle.
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Do not let the swab touch any surface except that which is to be sampled.
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Hold the test between thumb and forefinger so you can easily rotate the swab.
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Touch the swab to the surface you are testing and apply enough pressure to cause the wand to flex.
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Move your swab in an overlapping zigzag pattern
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that covers a 10 centimeter by 10 centimeter or a 4 inch by 4 inch square area.
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During sample collection, rotate the swab to ensure sufficient contact between the swab and the surface being sampled.
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Continue this process until your full sample is collected.
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You can activate and measure this test immediately, or you can wait until you have collected multiple surface samples.
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You have up to four hours to activate surface tests.
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When you are ready to activate and measure your ATP tests, press the handle down until you feel a click.
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Grip the top of the test and shake side to side for at least five seconds.
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Insert the test into the CleanTrace Luminometer LX25 and follow the on-screen prompts to take a measurement.
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In 10 seconds or less, you'll see the result, a quantitative RLU value and a pass or fail response.
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If the RLU value is above 250 or above the facility designated threshold,
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the surface should be re-cleaned and re-tested according to your facility's policies and procedures.
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You'll follow the same click and shake steps to activate any additional ATP tests
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and the same steps to measure your results using the luminometer.
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And always refer to the product manuals or the product's instructions for use.
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For a system overview and detailed walkthroughs of additional sample collection procedures, visit 3M.com slash cleantrace.

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Vocabulário e dicas de fala para esta lição

Esta aula de conversação de nível C1 usa o vídeo “3M™ Clean-Trace™ ATP Monitoring System Environmental Surfaces Sampling”. As palavras que mais se repetem: surface, test, swab, sample, cleantrace. Este vídeo tem 25 frases e 364 palavras para praticar shadowing. A fala dura 2:34. O falante mantém um ritmo estável de cerca de 142 palavras por minuto, confortável para o shadowing. Apenas 77% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente.

Vocabulário principal deste vídeo

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

PalavraPronúnciaSignificado
activate verbo/ˈæktɪˌveɪt/ativar
rotate verbo/ˈɹoʊ.teɪt/rotar, girar
designate verbo/ˈdɛz.ɪɡ.neɪt/designar
forefinger substantivo/ˈfɔɹˌfɪŋ.ɡɚ/dedo indicador, indicador
walkthrough substantivo/ˈwɔːk.θɹuː/detonado, tutorial
zigzag substantivo/ˈzɪɡ.zæɡ/ziguezague
efficacy substantivo/ˈɛf.ɪ.kə.si/eficácia
overlap verbo/ˌəʊvəˈlæp/sobrepor, cobrir
quantitative adjetivo/ˈkwɑn.təˌteɪ.tɪv/quantitativo
flex verbo/flɛks/flexionar
prompt verbo/pɹɑmpt/incitar, impelir
sleeve substantivo/sliv/manga
thumb substantivo/ˈθʌm/dedo polegar, polegar
insert verbo/ɪnˈsɝt/inserir, enxertar
threshold substantivo/ˈθɹɛʃ(h)oʊld/umbral, soleira

Pronúncia para ficar de olho

  • Os sons de “th”: walkthrough /ˈwɔːk.θɹuː/, thumb /ˈθʌm/, threshold /ˈθɹɛʃ(h)oʊld/
  • Os sons de “sh” e “zh”: threshold /ˈθɹɛʃ(h)oʊld/, measurement /ˈmɛʒ.ə.mənt/
  • Palavras longas — acerte a sílaba tônica: efficacy /ˈɛf.ɪ.kə.si/, quantitative /ˈkwɑn.təˌteɪ.tɪv/

Sons difíceis para falantes de português:

  • Consoante final — sem acrescentar um “i” depois: swab /swɒb/, activate /ˈæktɪˌveɪt/, rotate /ˈɹoʊ.teɪt/, designate /ˈdɛz.ɪɡ.neɪt/, zigzag /ˈzɪɡ.zæɡ/
  • s + consoante no início — sem um “i” antes: swab /swɒb/, sleeve /sliv/

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 activate, rotate, designate.

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 →