Prática de Shadowing: National Geographic Reading Explorer 2 Unit 6 Ocean Megabuilders - Aprenda a falar inglês com vídeo
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The bright colors of coral reefs can be seen in warm seas all around the planet.
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But they are not just beautiful, they are also hugely important to our oceans.
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1. Corals are actually animals.
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Though they may look like colorful plants, coral are in fact made up of tiny animals called polyps.
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Polyps can range from the size of a pinhead to a bit larger than a basketball.
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2. Corals are mega builders.
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Each polyp builds itself a skeleton out of limestone.
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These skeletons join together to form large colonies of hard corals.
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As polyp colonies grow over hundreds and thousands of years.
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They join with other colonies and become reefs that can stretch over hundreds of kilometers.
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The largest coral reef is Australia's Great Barrier Reef.
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It began growing about 20,000 years ago.
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Three, coral reefs are some of the most diverse ecosystems on Earth.
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Though they cover less than 1% of the ocean floor, coral reefs are home to 25% of all sea creatures.
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Up to 2 million species live in coral reefs around the world.
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4. Coral provide a window to the past.
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As coral grow over thousands or millions of years, their limestone skeletons form layers.
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These are similar to tree rings.
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They vary in thickness based on ocean conditions at the time.
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Scientists can study these layers to learn what the Earth's climate may have been like in the distant past.
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But what about the future?
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Unfortunately, climate change is dangerous for Earth's coral reefs, the animals that live there,
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and the 500 million people around the world who depend on reef fish for food.
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Unless we can slow down climate change, scientists warn that our oceans could lose many of their colorful reefs by the end of the 21st century.
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Vocabulário e dicas de fala para esta lição
Esta aula de conversação de nível B2 usa o vídeo “National Geographic Reading Explorer 2 Unit 6 Ocean Megabuilders”. As palavras que mais se repetem: coral, reef, polyp, ocean, skeleton. Este vídeo tem 24 frases e 289 palavras para praticar shadowing. A fala dura 2:29. O falante mantém um ritmo estável de cerca de 116 palavras por minuto, confortável para o shadowing. Apenas 78% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente.
Vocabulário principal deste vídeo
As 11 palavras mais avançadas do vídeo, com pronúncia e significado:
| Palavra | Pronúncia | Significado |
|---|---|---|
| coral substantivo | /ˈkɔɹəl/ | coral |
| reef substantivo | /ɹiːf/ | recife, arrecife |
| polyp substantivo | /ˈpɑlɪp/ | pólipo |
| skeleton substantivo | /ˈskɛlətən/ | esqueleto |
| limestone substantivo | /ˈlaɪmˌstoʊn/ | calcário |
| colorful adjetivo | /ˈkʌl.əɹ.fl̩/ | colorido |
| thickness substantivo | /ˈθɪknəs/ | grossura, espessura |
| ecosystem substantivo | /ˈikoʊˌsɪstəm/ | ecossistema |
| builder substantivo | /ˈbɪl.dəɹ/ | construtor, construtora |
| warn verbo | /woɹn/ | avisar, alertar |
| depend verbo | /dɪˈpɛnd/ | depender |
Phrasal verbs que você vai ouvir
| Palavra | Significado |
|---|---|
| slow down verbo | desacelerar |
Pronúncia para ficar de olho
Sons difíceis para falantes de português:
- Consoante final — sem acrescentar um “i” depois: polyp /ˈpɑlɪp/, pinhead /ˈpɪn.hɛd/, distant /ˈdɪstənt/, depend /dɪˈpɛnd/
- /h/ — um sopro suave, diferente do “r”: pinhead /ˈpɪn.hɛd/, hugely /ˈhjuːd͡ʒli/
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 coral, reef, polyp.
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.