シャドーイング練習: How Airplanes Fly! | Airplane Science | SciShow Kids - 動画で英語スピーキングを学ぶ
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48 文
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Oh, hey there! Squeaks and I were just packing for our trip.
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We’re going to a museum together!
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It’s going to be Squeaks’ first time ever on an airplane.
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But he’s a little nervous.
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Do you remember what to expect, buddy?
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We’ll put our things away… buckle our seatbelts… and then we’ll take off!
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You’re right, the airplane isn’t going to flap its wings like a bird.
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But the airplane does need its wings to fly.
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Well, when an airplane is ready to take off, the pilot turns on the engines.
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The engines push the airplane forward along the ground on little wheels, going faster and faster and faster.
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The push, or force, from the engines is called thrust.
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Thrust is what will help to move the airplane forward on the ground, and eventually into the air.
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The thrust force is also going to be really important for creating another special push, or force, that will push the plane up into the air.
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You see, the wings do something amazing as they move through the air.
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Air doesn’t seem like very much to us.
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We can’t see it, and most of the time, we don’t really feel it.
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But air can push on things.
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It pushes down on us all the time.
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That’s called air pressure.
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But air pressure doesn’t only push down.
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The shape of an airplane wing can make air push it up instead!
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Here, let’s check out a picture of an airplane to help show you.
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Here are the wings, and these big round things are the engines.
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You can see the wheels that the plane uses on the ground, too.
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But let’s look at the wings of this airplane.
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What do you notice about their shape?
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Yeah, that’s a great observation!
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This airplane’s wings are kind of flat on the underside, but the top is a little bit rounded and curved.
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Because of an airplane wing’s unique shape, air moves differently above and below it as the airplane moves forward from thrust.
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The air has to move from the front of the wing to the back as the airplane moves forward.
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But in order to get over the rounded top edge of the wings, the air has to move faster than it does to go underneath the flat bottom of the wing.
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Because the air underneath the wing isn’t having to go as fast, it is able to put more of a push on the wings than the air above the wing.
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This pressure pushes on the airplane wings, and it pushes more up from the bottom, making the plane go… You’re right, up!
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The push from the slower air under the wings is another force called lift.
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Lift does exactly what it sounds like, it lifts the airplane wings up into the air, bringing the whole airplane up, up, up!
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The airplane won’t be lifted up forever, Squeaks.
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Pilots control how high up the airplane is lifted, and whether it turns left, right, or back down towards the ground using the engines and special panels on the wings and tail of the airplane.
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Those panels can change the way air moves around the wings… so they change the way it pushes on them, too.
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Depending on where you sit in the airplane, you might even be able to see some of these special wing panels move as we take off and fly.
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I’m so glad that you’re excited to watch the airplane work, Squeaks.
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And I’m glad that this is making you feel better about your first airplane ride.
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Sometimes, just understanding something can make it a lot less scary.
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So, now that you know how the shape of the wings and the thrust from the engines help an airplane to take off and fly, this trip isn’t going to just be about traveling.
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It’s now a great way to observe science and engineering in action!
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Have you seen an airplane take off and fly before?
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What would you add to airplanes to help them fly even better?
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To keep exploring how the world works, and making new discoveries with Squeaks, me, and all our friends, make sure to click the subscribe button below.
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And we’ll see you next time, here at the Fort.
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このビデオを使って話す練習をする理由は？
このビデオでは、飛行機がどのように飛ぶのかを楽しく学ぶことができます。英語のスピーキングを向上させるためには、実際の文脈で使われる自然なフレーズや表現を学ぶことが大切です。飛行機の仕組みについて説明する内容は、科学的な知識を身に付けることにも繋がり、理解を深めることで自信を持って話せるようになります。
文法と文脈における表現
このビデオにはいくつかの重要な文法構造や表現が含まれています。以下にいくつかを紹介します：
- “The engines push the airplane forward” - 力の動きを示す表現で、動詞の活用が効果的です。
- “Because the air underneath the wing isn’t having to go as fast” - 現在進行形の使用で、事象の進行を強調しています。
- “It pushes more up from the bottom” - 受動態の理論を示し、力の作用を理解する助けとなります。
これらの表現を使って、shadow speechを行うことで、発音やリズムをマスターしやすくなります。たとえば、英語の発音を良くするためには、自然な言い回しを繰り返し練習することが効果的です。
一般的な発音の落とし穴
ビデオの中で注意が必要な発音のポイントがあります。特に以下のような単語には注意しましょう：
- “thrust” - 口をしっかりと使い、声を出す位置を調整する必要があります。
- “lift” - 直後の母音に注意し、スムーズに発音することが大切です。
- “pressure” - 強弱をつけて発音することで、英語のリズムが得られます。
これらの単語をマスターするためには、shadowspeakを行い、耳で聞いた発音をすぐに模倣する練習が不可欠です。英語シャドーイングを活用して、英語の発音を良くするためのスキルを向上させましょう。
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 | is called · won't be lifted · is lifted |
| 「will」の未来表現 will + 動詞 — その場の決定、約束、予測 | We'll put · will help · will push |
| 義務：must / have to / need to 何かが必要であることを伝える | has to move · having to go |
| 現在進行形 am/is/are + -ing — 今まさに、または最近起きていること | isn't having · is making |
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。