シャドーイング練習: Why Humans Eat 3 Meals a Day - 動画で英語スピーキングを学ぶ
レッスンを作成中...
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You woke up this morning and ate breakfast.
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Around noon you probably grabbed lunch, and tonight you will sit down for dinner.
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You did not question it.
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You never have.
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It just feels like the natural order of things.
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But here's what almost no one talks about: nobody decided this for you based on biology.
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No doctor prescribed it.
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No ancient wisdom handed it down.
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Three meals a day is not a law of nature.
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It is a story.
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And it is one of the most fascinating stories in all of human history.
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Let us go back, way back.
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Around 23 ,000 years ago, on the shores of what is now the Sea of Galilee in Israel, there was a place called Ohalo II.
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Archaeologists found the remains of small, brush -walled dwellings there, each one built around a hearth.
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Scattered near those hearths was evidence of over 140 types of seeds and nuts.
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There were bones too, from birds, fish, and small mammals.
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The people who lived here were hunter -gatherers.
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They ate whenever food was available.
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Not three times a day, not twice, just whenever.
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There were no meal times because there was no guaranteed food supply.
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Some days they feasted, some days they went hungry.
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The very concept of a structured daily eating schedule would have meant nothing to them.
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Eating was not a routine, it was a result.
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The result of a successful hunt, or a lucky morning of foraging.
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Then something happened that changed everything.
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Around 10 ,000 BCE, agriculture took hold in the Fertile Crescent, across parts of modern -day Iraq, Iran, and Turkey.
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For the first time, people had a reliable food supply.
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They did not need to chase food anymore.
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Food stayed put, so people stayed put too.
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Permanent settlements formed.
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Cooking grew more complex.
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Meals became more communal.
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But even then, three structured meals a day did not exist.
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What people ate and when still depended entirely on culture, geography, and daylight.
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Ancient Egypt gives us one of the earliest pictures of structured eating.
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Egyptians typically ate two meals: a light morning meal of bread and beer, and a heavier evening meal with vegetables, lentils, and whatever protein was available.
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Two meals, not three.
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The ancient Greeks were a little closer to what we would recognize today.
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They had a small morning meal called akratisma, which was basically bread dipped in wine.
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Then came ariston, a midday meal.
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And finally dipnon, a more substantial evening gathering.
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But not everyone ate all three.
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These were not fixed, time -locked events.
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The Romans are perhaps the most surprising case of all.
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The Roman Empire was one of the most organized civilizations the world had ever seen.
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You might expect them to have had a strict meal schedule.
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They did not.
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The Romans were deeply suspicious of eating more than once a day.
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Historian Caroline Yeldum explains that they were obsessed with digestion, and believed that eating multiple meals was simply a form of gluttony.
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Their primary meal was called "cina," eaten around midday.
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This one -meal model stayed dominant across much of Europe for centuries.
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Then came the moment when European settlers arrived in the Americas.
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They were genuinely shocked by how Native Americans ate.
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According to historian Abigail Carroll, author of Three Squares, the settlers watched indigenous people eat in ways that seemed chaotic to them.
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Native Americans fasted when necessary, adjusted their food intake with the seasons, and followed no fixed daily schedule.
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The Europeans called this uncivilized.
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eventually help spread three meals a day across the entire world.
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So, where exactly did the three -meal structure actually come from?
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The answer takes us to 16th -century Europe and a world that was beginning to organize itself around the clock.
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The British Royal Navy was one of the first large institutions to formalize three meals a day.
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Since at least the 1500s, the Navy served sailors three set meals built around the shipboard routine: a simple breakfast of ship's biscuits and salted meat,
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a midday lunch as the main meal, and a lighter dinner in the evening.
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The reasoning was entirely practical.
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intervals, physical naval work was relentless, and the schedule had to match it.
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But what truly locked three meals into the lives of ordinary people was the Industrial Revolution.
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Starting around 1760 in Britain, and spreading across Europe and North America over the following century, the Industrial Revolution changed how people related to time itself.
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For the first time, large numbers of people were not working in fields with loose seasonal rhythms.
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They were working in factories with rigid, standardized hours.
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You clocked in and out at a fixed time.
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You had one break in the middle of the day.
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Breakfast before work, lunch at midday, dinner after the shift, it mapped perfectly onto the new industrial schedule.
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Three meals a day was not a discovery.
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It was a solution, an organizational answer to the demands of factory life.
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As cities grew and people moved away from farms, the morning meal became increasingly important.
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The word breakfast literally means to break the fast of the night before.
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In medieval Christian Europe, eating before morning mass was often discouraged.
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So breakfast as a regular full meal was slow to catch on.
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But skipping a morning meal while working a 10 - or 12 -hour industrial shift was not a spiritual discipline.
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It was a health hazard.
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The morning meal became essential.
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Dinner shifted, too.
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Before industrialization, the main meal was eaten at midday, when natural light was at its strongest.
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But as artificial lighting improved, and factories kept workers busy well into the afternoon, the main meal migrated to the evening.
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By the mid -1800s, dinner after work had become the daily anchor for most people in Europe and the United States.
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the final piece fell into place.
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Someone you might not expect helped cement breakfast as a daily ritual: a cereal entrepreneur named John Harvey Kellogg.
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Kellogg invented cornflakes as a health food.
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And through aggressive marketing campaigns in the 1920s and 1930s, the idea that breakfast was the most important meal of the day spread everywhere.
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It was not pure science.
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It was also commerce.
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Cereal companies needed people eating breakfast every single morning.
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And it worked.
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Now here is the most important question of all: three times a day?
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The answer might surprise you.
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Inside every human being is a circadian rhythm, your body's internal 24 -hour clock.
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Research published in Current Biology shows that the timing of your meals affects blood glucose,
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insulin sensitivity, metabolism, and even the behavior of fat cells at a cellular level.
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In the morning, cortisol rises and your body becomes remarkably efficient at processing food.
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Insulin sensitivity is near its peak, meaning carbohydrates instead of stored fat.
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Eat that exact same meal late at night, and the outcome changes dramatically.
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Blood sugar rises higher.
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Sleep quality worsens.
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Fat storage increases.
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Your hunger hormones follow this rhythm, too.
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In fact, your body begins preparing for meals before you even take the first bite.
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Scientists call this physiological food anticipation.
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Your biology is not passive.
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It learns your habits, predicts your routines, and adjusts itself around them.
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And that reveals something important.
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meals you eat, but when you eat them.
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Two meals, three meals, or even four can all work reasonably well, as long as most food is consumed during daylight hours, when the body is metabolically prepared for it.
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But biology is only part of the story.
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For more than 23 ,000 years, humans have gathered around food not just to survive, but to connect.
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Long before factories, office schedules, or cereal advertisements existed, shared meals were how communities built trust, strengthened relationships, and signaled safety.
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Research in social psychology consistently finds that people who eat regularly with others report greater happiness, stronger social bonds, and a deeper sense of belonging.
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Three meals a day, whatever its historical origins, gives us three recurring opportunities to do something profoundly human.
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Because factory workers needed predictable breaks.
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Because medieval Christians could not eat before mass.
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Because industrial society reorganized life around the clock.
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Because cereal companies turned breakfast into a business opportunity.
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And because underneath all of that history, human biology already operated on rhythms that happened to align with it.
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Three meals a day is not a biological law, but it is not a meaningless invention either.
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one another over time.
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Tonight, you will probably sit down for dinner like billions of people before you.
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And now, you will know why.
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このレッスンについて
このレッスンでは、１日の食事の習慣についての興味深いストーリーを学びます。なぜ人間が一日に三回食事をするのか、その歴史的背景を探求しましょう。食事の起源や影響を受けた文化について理解を深めることで、英語のリスニング力と語彙力を同時に強化することができます。
重要な語彙とフレーズ
- 食事 (しょくじ) - meal
- 狩猟採集 (しゅりょうさいしゅう) - hunter-gatherer
- 農業 (のうぎょう) - agriculture
- 定住 (ていじゅう) - permanent settlement
- 文化 (ぶんか) - culture
- 消化 (しょうか) - digestion
- グルメ (ぐるめ) - gluttony
- 朝食 (ちょうしょく) - breakfast
練習のコツ
このビデオのスピードとトーンに合わせて、英語シャドーイングを行う際のアドバイスをいくつかご紹介します。まず、リスニングした内容を繰り返しながら、自分の声で発音してみてください。特に、文のリズムとイントネーションを意識することが大切です。shadow speechを意識し、耳で聞えた内容をそのまま声に出すことで、自然な会話が身につきます。
さらに、＜strong>YouTubeで英語学習英語の発音を良くする練習にもなります。リピート練習を重ねることで、言葉が体に染み込んでいくことでしょう。最後に、何度も繰り返すことで、より自信を持って英語を話せるようになります。
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | were not fixed · were obsessed · was called |
| 関係詞節 who / which + 節 — 人や物について情報を加える | people who lived · akratisma, which was · people who eat |
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。