シャドーイング練習: The banana is under threat - YouTubeで英語スピーキングを学ぶ
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This banana is known as the Gros Michel, aka Big Mike.
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This banana is known as the Gros Michel, aka Big Mike.
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And it nearly went extinct.
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Hard to imagine because the myth that bananas are ubiquitous is so ingrained in our minds.
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I'm Chiquita Banana and I've come to say...
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Bananas in pajamas.
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Now let's go bananas!
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So Mauricio Catalan's comedian is composed of a single banana.
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It is the number one grown fruit in the world,
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the most consumed fruit, the most important fruit crop.
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It's the, I think, the weirdness of bananas that makes them so interesting.
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When Big Mike disappeared from the market,
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it was replaced with something very similar, the Cavendish banana.
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And you probably recognize it as the banana,
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since it's pretty much the only banana we see in the US.
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By the 1950s, Cavendish became the most commercially successful banana.
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Bananas are so good for you and so easy to digest.
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But a variant of the same disease that virtually wiped out Big Mike is coming for the Cavendish.
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And this time, there's no replacement.
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So what needs to happen to save our beloved banana?
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Bananas are fascinating fruits.
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They're part of the genus Musa and are full of potassium and an energy-dense food,
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making them a staple crop in much of Africa, Asia, and Latin America.
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They originally came from Asia,
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likely somewhere in Southeast Asia.
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The wild ones are full of of seeds.
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So a wild banana is going to be about the length of your thumb here.
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And these banana seeds are rock hard, tooth shattering.
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To get to the seedless bananas we have today,
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humans basically had to find sterile fruits.
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It was probably a mutation that did this.
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Some of these early farmers found a banana that was seedless and watched it propagate and said,
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hey, you know, we can cut this sucker off,
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this daughter plant, and take it somewhere else.
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And the daughter plant gives birth to another plant.
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And this can go on for thousands of years.
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This method of reproducing through propagations is also known as asexual cloning.
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But it also creates some problems because these fruits are essentially now clones
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and they're all exactly the same and they carry the same weaknesses.
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And this genetic cloning is really where the danger starts.
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Commercially farmed bananas, which are pretty much all of the bananas we consume, are monocrops.
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It's an industrial agriculture term that refers to single crop species grown on the same land again and again.
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It's driven by our demand for uniform, durable, and cheap fruit.
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The variety they picked was a banana called the Gros Michel.
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The Gros Michel is a great banana for commercial use because it's tough.
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It doesn't need to be packaged really that much.
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It ripens at a perfect rate.
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The result?
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Uniform bananas for consumers like us,
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but extremely fragile biological conditions for the plants and the farmers.
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You run a risk, which is that if one of your bananas gets sick,
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all of them are gonna get sick.
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And that was exactly what happened with Panama disease,
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or Tropical Race 1, in the early 1900s.
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The plantations begin to get very sick.
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Fungus invades the soil, making it impossible to grow the bananas.
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But instead of diversifying, industrial banana companies acquired more lands as the plantations became diseased.
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And all goes well until they finally run out of land.
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This is partially how the term banana republic came to be.
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It's an ugly history that involves US corporations like the United Fruit Company exploiting land and labor in Central America.
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These companies took over farms and governments to grow exports like bananas cheaply and at a massive scale.
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But no amount of land in Conquest could stop the spread of Panama disease.
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By the 1950s, TR1 had devastated the Gros Michel globally,
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virtually wiping it out of production.
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Luckily, the Gros Michel had a close cousin that was resistant to that strain of Panama disease,
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the Cabin dish.
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At the brink of extinction,
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at the brink of disaster,
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the banana industry saves itself,
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when in fact it is only delayed an inevitable fate that will come back to haunt it again.
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Speaking of delicious bananas, this video is presented by a delicious yogurt, Stonyfield Organic.
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For over 40 years, Stonyfield Organic has been a champion of truth in our food system.
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There is so much misinformation out there,
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which is why they believe in using the highest quality ingredients to ensure
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that what they put on the shelves is the best product for you and your family.
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The milk they use comes from all over the country,
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including Molly Brook Farms in Vermont.
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It's USDA organic certified, which means no growth hormones, no pesticides, no antibiotics.
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So the next time you're in your grocery run and you're thinking about bananas,
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make sure to also check out Stonyfield Organic Yogurt.
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It's also important to note that Stonyfield Organic did not dictate the content of this video,
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but their support did make this tasty reporting possible.
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And now back to bananas.
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By the 1990s, the Cavendish was facing a new strain of the Panama disease,
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Tropical Race 4 or TR4.
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The banana companies refuse to believe it and they just keep doing what they're doing.
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The disease started in Taiwan in the late 80s.
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From there, it spread to Africa, Australia and the Americas.
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By late 2025, TR4 is reported in Ecuador,
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the largest banana exporter in the world.
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This disease is really virulent.
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If I am wearing a sneaker with one bit of contaminated soil and I walk through a banana plantation,
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I'm gonna spread that disease.
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But unlike what happened with Gros Michel in the 1950s,
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there is no banana cousin to replace the Cabin dish with.
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So we're in the situation now where this disease is really starting to have a dramatic influence.
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And all of the major producers around the world are now recognizing at long last things have to change.
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Now, it's not like other bananas don't exist.
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There are actually over a thousand species of bananas.
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With specialty farms and supermarkets,
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you can even find some of these other varieties.
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There's certainly been a move to try to move consumer preferences from Cavendish to something else.
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Consumers didn't like it.
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Didn't taste like Cavendish that preference is such an incredible driver.
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And to try to get consumers to change from a Cavendish banana to something else is going to be a big ask.
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So Professor Dale turned to science.
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My group started to genetically modify bananas.
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So we know there is resistance to the Panama disease tropical waste fall.
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It actually occurs in one of those wild bananas we were talking about,
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the ones with seeds we pulled one gene out of that banana and transferred it to Cavendish.
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But as you can imagine,
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consumers have a lot of skepticism around genetically modified foods.
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At this time, in March,
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2026, Professor Dale's lab-grown Cavendish bananas are not yet available in stores.
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We've now had approval to grow,
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commercially grow that banana in Australia,
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but nowhere else in the world has yet.
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Genetically modified crops are highly regulated.
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So Europe at the moment is very reticent on taking any genetically modified foods.
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And the other thing, of course, is consumer perception.
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While his modified banana will likely never make it into the European market,
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Professor Dale has other solutions like gene editing.
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In many countries, this is no longer considered genetic modification.
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There are many, many other crops that are being gene edited and some of them are already on the market.
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So, to save our beloved banana,
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either Western consumers will have to give up on the myth of there being only one type of banana,
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or regulators are going to have to accept genetically engineered Cavendish.
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I think we're going to have to have an open mind
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about how we're going to produce our crops under what are becoming increasingly extreme conditions.
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Though truthfully, science can only do so much.
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The answers for preserving our beloved banana and the future of many of our fruits lies in maintaining a diverse ecosystem.
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How do we fix the problem?
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And the answer is destroy the monoculture.
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We need to get all those bananas that are so good to the United States,
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to Europe, to the Western world,
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because that's the only way to sort of protect the banana and to protect people who grow bananas.
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What I would love to see would be when you walk into a supermarket,
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that still the bananas are right there front and center,
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but there are 10 different ones.
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Cavendish over here and maybe Ladyfinger and bananas would go from the world's favorite fruit to even more favorite.
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Alright so we got all of these bananas for this shoot
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and we want to do a blind taste test to see
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if we can actually identify which one is Cavendish and also see
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if we like one of these bananas better shout out to the Thai
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and Filipino markets for actually having such a diverse array of bananas
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and we're gonna put the results of the blind taste test up on Vox's Patreon.
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If you're not yet a member go on over to patreon.com slash Vox.
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It's so important to support independent journalism.
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You know, your membership allows us to continue making videos like this,
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allow us to have fun,
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be creative, but also really dig into the investigative reporting.
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And if it doesn't make sense for you financially today to support Vox,
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you can still sign up for free,
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stay up to date with our reporting.
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And now let's get this taste test started.
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Ben, ready eventually?
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Thank you.
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このレッスンについて
このレッスンでは、「バナナが脅威にさらされている」というテーマを通じて、英語のリスニングとスピーキングのスキルを向上させます。具体的には、レッスンの内容に関連する語彙やフレーズを学び、ビデオに出てくる言葉を使って自己表現力を高めることを目指します。バナナの歴史や生態系への影響について考えながらリスニング力を鍛え、発音やイントネーションを実践します。このように、YouTubeで英語学習を通じて、特にIELTS スピーキング対策に役立つ内容をお届けします。
重要な語彙とフレーズ
- Gros Michel - バナナの一種で、消費が多かったが絶滅の危機にあった。
- Cavendish - 現在最も一般的に流通しているバナナの種類。
- monocrops - 同じ作物を繰り返し栽培すること。
- asexual cloning - 無性繁殖；一つの植物がクローンとして増えること。
- energy-dense - エネルギー密度が高いこと。
- potassium - バナナに豊富に含まれる栄養素。
- propagation - 植物の繁殖や増殖。
練習のヒント
このビデオでの影響力のあるスピーチを模倣するには、まず音声を何度も聴き、リズムやイントネーションを掴むことが重要です。特にこの音声のスピードはやや早いので、自分のペースに合わせてshadow speechを実践しましょう。始めはゆっくりと語彙を発音し、次第にビデオのスピードに近づけていくと良いでしょう。また、意味を考えながら発音することで、より効果的に記憶できます。自分自身の声を録音し、発音をチェックするのもおすすめです。このように、shadowspeaksを通じて、言葉の使い方を体得し、流暢さを向上させていきましょう。 ここで挙げた方法を活用し、あなたの英会話スキルを高めてください！
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。