Prática de Shadowing: Phát âm chuẩn cùng VOA - Anh ngữ đặc biệt: Tissue Glue (VOA) - Aprenda a falar inglês com vídeo
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From VOA Learning English, this is the Science Report.
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Medical adhesive products are becoming more common.
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Doctors use medical adhesives to help reconnect damaged tissue.
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They are able to stick fast and hold the tissue together.
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But until recently, no product had been approved for use inside the human body.
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Earlier this year, the United States Food and Drug Administration approved a kind of biodegradable glue for use in surgical operations.
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The product, called tissue glue, breaks down over time.
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Eric Beckman teaches engineering at the University of Pittsburgh.
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He says tissue glue was created by accident.
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Around 2001, Mr. Beckman and a dental surgeon at the university were working on a problem.
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They had set out to design a tissue regeneration substance in a laboratory.
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In the process, they accidentally discovered a sticky, glue-like substance.
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Tissue glue is a chemical compound used to make plastic.
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It is non-toxic, meaning it is not harmful to humans.
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Doctors can now use it to connect big pieces of skin and tissue inside the body.
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Eric Beckman says the university researchers recognized the possibility of developing and marketing tissue glue.
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Nothing like that existed for use inside the body.
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Professor Beckman says the Food and Drug Administration approved the glue for connecting
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large skin flaps in an operation that removes extra fat and skin.
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He says the product also helps reduce fluid buildup by holding tissues close together.
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The new glue also means fewer medical problems and a quicker recovery for the patient.
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In Europe, tissue glue has been approved for use in breast cancer and lymph node dissection surgeries.
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Vocabulário e dicas de fala para esta lição
Este vídeo tem 22 frases e 268 palavras para praticar shadowing. A fala dura 2:51. O falante fala devagar, cerca de 94 palavras por minuto, o que dá tempo para imitar cada som. Apenas 75% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente.
Vocabulário principal deste vídeo
15 palavras menos comuns do vídeo, com pronúncia e significado:
- tissue /ˈtɪʃ.(j)u/ (substantivo) — tecido. Thin, woven, gauzelike fabric.
- glue /ɡlu/ (substantivo) — cola, grude. A hard gelatin made by boiling bones and hides, used in solution as an adhesive; or any sticky adhesive substance.
- approve /əˈpɹuːv/ (verbo) — aprovar, sancionar. To officially sanction; to ratify; to confirm; to set as satisfactory.
- connect /kəˈnɛkt/ (verbo) — conectar. To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object.
- substance /ˈsʌbstəns/ (substantivo) — substância. Physical matter; material.
- discover /dɪˈskʌvə/ (verbo) — descobrir. To find or learn something for the first time.
- breast /bɹɛst/ (substantivo) — seio, peito. Either of the two organs on the front of a female human's chest, which contain the mammary glands; also the analogous organs in males.
- fewer /ˈfjuː.ɚ/ — menos. Less; a smaller amount of something non-integral commonly expressed as an integer
- laboratory /ˈlæb(ə)ɹəˌtɔɹi/ (substantivo) — laboratório. A room, building or institution equipped for scientific research, experimentation or analysis.
- toxic /ˈtɒk.sɪk/ (adjetivo) — tóxico. Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering into the body in sufficient quantities.
- accidentally /ˌæk.sɪˈdɛnt(ə)li/ (advérbio) — acidentalmente. In an accidental manner; by chance, unexpectedly.
- fluid /ˈflu.ɪd/ (substantivo) — fluido, líquido. Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma.
- compound /ˈkɑmpaʊnd/ (substantivo) — composto. Anything made by combining several things.
- surgeon /ˈsɝd͡ʒən/ (substantivo) — cirurgião. One who performs surgery; a doctor who performs operations on people or animals.
- dental /ˈdɛn.təl/ (adjetivo) — dental, dentário. Of or concerning the teeth.
Pronúncia para ficar de olho
- Os sons de “sh” e “zh”: tissue /ˈtɪʃ.(j)u/, dissection /dɪˈsɛkʃən/
- Palavras longas — acerte a sílaba tônica: laboratory /ˈlæb(ə)ɹəˌtɔɹi/, accidentally /ˌæk.sɪˈdɛnt(ə)li/, biodegradable /(ˌ)baɪoʊdəˈɡɹeɪdəbl̩/
Como praticar com este vídeo
- Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
- Faça shadowing frase por frase na velocidade normal, repetindo cada uma até o seu ritmo ficar igual ao do falante.
- Grave a sua voz e compare com o original, prestando atenção a palavras como tissue, glue, approve.
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.