Prática de Shadowing: RE2 Unit 6A - Aprenda a falar inglês com vídeo

track 11 reading 6a cities beneath the sea for uncounted generations trillions upon trillions of coral polyps have lived

and died leaving behind a material called limestone prized throughout history

limestone was used to construct the great pyramids of egypt as well as many churches

and castles yet the greatest limestone structures in the world are

built underwater by the coral polyps themselves we call them reefs

they can be even larger in scale than the most impressive buildings

and structures made by humans a variety of life indeed a living coral reef is remarkable

a city beneath the sea filled with a rich variety of life most coral reefs can be found in warm shallow oceans.

They occupy just a small part of the ocean floor, but host 25 % of all ocean life.

Coral reefs display nature's most brilliant colours.

Each reef is full of colourful fish, as well as coral that form wonderful patterns.

In addition to their beauty, the reefs are an important food source for fish and for humans. In fact,

reef fish make up a significant percentage of the global fish

catch threats to coral reefs various human activities can cause great

harm to the world's coral reefs for example reefs can be damaged

when the coral is taken for use in building materials jewelry making

or to fill aquariums illegal fishing methods like blast

and cyanide fishing also harm the reefs these methods can help fishermen get a good catch

but their negative effects on the reefs are significant.

Blast fishing involves setting off bombs in the water to kill as many fish as possible.

This kills most living things nearby and causes damage to the reef's structure.

In cyanide fishing, fishermen release liquid cyanide, a very dangerous and deadly chemical, into the reef.

As a result, the fish become stunned, which makes them easy to collect.

Meanwhile, the reef is damaged by the cyanide, which kills large numbers of coral polyps.

The reef is also damaged by the fishermen who break it apart looking for the stunned fish.

Another threat is water pollution.

When floods in Australia covered the Great Barrier Reef with dirty freshwater, the quality of the water changed and chemicals killed the reef life.

This is happening to many reefs around the world.

In addition, global warming has caused many reefs to become sick.

Warmer temperatures have turned them white, in a process known as coral bleaching.

A 2018 UN report predicted that up to 99 % of the world's coral reefs may decline if global warming continues.

Reasons for hope These threats to coral reefs are very serious, but there is reason to hope that they will survive.

If we take steps toward coral reef conservation, it is likely that these tiny creatures, which survived natural threats for millions of years,

will be able to rebuild.

As conservationist Robert Richman says, given a chance, they can come back.

📺 Mesmo canal

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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.

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