シャドーイング練習: RE2 Unit 6A - 動画で英語スピーキングを学ぶ
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track 11 reading 6a cities beneath the sea for uncounted generations trillions upon trillions of coral polyps have lived
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and died leaving behind a material called limestone prized throughout history
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limestone was used to construct the great pyramids of egypt as well as many churches
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and castles yet the greatest limestone structures in the world are
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built underwater by the coral polyps themselves we call them reefs
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they can be even larger in scale than the most impressive buildings
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and structures made by humans a variety of life indeed a living coral reef is remarkable
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a city beneath the sea filled with a rich variety of life most coral reefs can be found in warm shallow oceans.
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They occupy just a small part of the ocean floor, but host 25 % of all ocean life.
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Coral reefs display nature's most brilliant colours.
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Each reef is full of colourful fish, as well as coral that form wonderful patterns.
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In addition to their beauty, the reefs are an important food source for fish and for humans. In fact,
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reef fish make up a significant percentage of the global fish
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catch threats to coral reefs various human activities can cause great
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harm to the world's coral reefs for example reefs can be damaged
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when the coral is taken for use in building materials jewelry making
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or to fill aquariums illegal fishing methods like blast
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and cyanide fishing also harm the reefs these methods can help fishermen get a good catch
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but their negative effects on the reefs are significant.
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Blast fishing involves setting off bombs in the water to kill as many fish as possible.
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This kills most living things nearby and causes damage to the reef's structure.
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In cyanide fishing, fishermen release liquid cyanide, a very dangerous and deadly chemical, into the reef.
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As a result, the fish become stunned, which makes them easy to collect.
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Meanwhile, the reef is damaged by the cyanide, which kills large numbers of coral polyps.
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The reef is also damaged by the fishermen who break it apart looking for the stunned fish.
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Another threat is water pollution.
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When floods in Australia covered the Great Barrier Reef with dirty freshwater, the quality of the water changed and chemicals killed the reef life.
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This is happening to many reefs around the world.
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In addition, global warming has caused many reefs to become sick.
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Warmer temperatures have turned them white, in a process known as coral bleaching.
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A 2018 UN report predicted that up to 99 % of the world's coral reefs may decline if global warming continues.
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Reasons for hope These threats to coral reefs are very serious, but there is reason to hope that they will survive.
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If we take steps toward coral reef conservation, it is likely that these tiny creatures, which survived natural threats for millions of years,
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will be able to rebuild.
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As conservationist Robert Richman says, given a chance, they can come back.
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このビデオは誰におすすめ？
中級レベルの英語学習者で、読解力とスピーキング力を同時に上げたい方にぴったりです。海中のサンゴ礁についての説明文を通じて、自然な英語のリズムを感じながら、環境問題に関する語彙も覚えられます。特に「shadow speak」（シャドーイング）の練習に最適で、聞いた内容を即座に繰り返すことで、発音と流暢さが向上します。
覚えておきたい単語と表現
- coral polyps：サンゴ虫。サンゴ礁を作る小さな生物です。
- limestone：石灰岩。エジプトのピラミッドに使われた素材です。
- coral bleaching：サンゴの白化。温暖化によりサンゴが白くなる現象です。
- given a chance：チャンスさえ与えられれば。文中ではサンゴ礁の回復可能性を表しています。
発音を良くするコツ
このビデオのスピーカーは、語句の間に自然なポーズを入れながら、リズミカルに話しています。「英語の発音を良くする」ためには、shadow speech（シャドーイング）の練習が効果的です。具体的には、スピーカーの後ろについてすぐに繰り返し、アクセントとイントネーションを真似ましょう。特に「trillions upon trillions」や「a variety of life」のような長いフレーズは、速さを抑えて発音することで、自然な流れが出ます。また、「coral reefs」の「reefs」は唇を丸めて軽く発音し、「bleaching」の「ea」は長めに伸ばすことがポイントです。毎日5分ずつ「英語シャドーイング」を続けると、発音だけでなく聴解力も大幅に向上しますよ！
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。