シャドーイング練習: Defining a Problem: Crash Course Kids #18.1 - 動画で英語スピーキングを学ぶ

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Problems.
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We've all got them.
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You, me, T -Swift, Tony Stark.
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Some problems, like forgetting to do your homework, might seem like a pretty big deal to you.
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But when you compare them to other, bigger problems, they're really not so bad.
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Like what kind of bigger problems?
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Well, the kinds of problems engineers face, like how to safely fly hundreds of people through the air in a small vehicle from one country to another
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or how to make an eco -friendly building in a seaside town
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that can withstand hurricane -force winds or how to send a bunch of earth -bound humans hurtling off into space and, you know, get them back.
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That homework doesn't seem like such a big problem anymore, does it?
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Okay, to be clear, I'm not saying that you don't have to do your homework.
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If you didn't, it would definitely be a problem, just not as big as, like, having to invent a spaceship.
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And that's the kind of stuff that engineers do.
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Engineers are people who want to know how and why things work.
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Not only that, they actually design and build things like machines, systems, or structures to help solve specific problems.
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All engineers, whatever type they are, follow the same series of steps when trying to solve a problem.
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You'll remember these steps as the engineering process.
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And the first step in that process is defining the problem, when an engineer identifies a problem he or she hopes to solve.
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But that first step isn't as simple as you think it is.
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So it's time for our big question.
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How does an engineer define a problem?
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Let's come up with a fake problem to solve and we'll see what we wind up with.
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Pretend you're on one side of a very big canyon and you need to get to the other side.
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So that's the problem you need to solve, right?
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How to cross this very big canyon.
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Sort of, but not exactly.
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We can do better.
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If I was an engineer and found myself on one side of that huge canyon, here's how I'd go about identifying the problem.
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I'd ask questions.
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A lot of questions.
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All the questions!
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Hmm.
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I need to cross this very big canyon.
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But is that my actual problem?
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Hmm.
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This canyon is very big and I need to get to the other side.
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I know!
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I'll cross a bridge!
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Wait, is there a bridge?
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Uh, yeah, there's no bridge.
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Okay, can I climb down one side of the canyon and then up the other side?
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Uh, definitely not.
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Way too deep.
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Plus there's a roaring river at the bottom I'd have to figure out how to cross.
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So, I can't cross the canyon by bridge, I can't climb down and up, and I can't swim across it.
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What's something I can do that doesn't require a bridge, climbing, or swimming?
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I know, I need to find a way to fly across the canyon.
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And that's my problem.
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More importantly, that's my solvable problem.
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How do I fly across this very big canyon?
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It took a little bit of thinking and a whole lot of questions, but how can you fly across the canyon is an easier problem to address than the much less specific,
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I'm on one side of a big canyon and I want to get to the other side, and I don't know how to get across it.
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Which, strictly speaking, isn't a question.
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It's just complaining about a problem really loudly.
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So defining the problem in a solvable way is really key to being a good engineer.
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While that first step might seem pretty easy, make sure you treat it like the super important step that it is, because it sets the stage for all of the steps of the engineering process that follow.
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If you don't define a potentially solvable problem from the start, you might never, well, solve it.
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So an engineer asks a lot of questions to define a problem as specifically as they can, and most importantly as something that can be solved.
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So how is engineer Sabrina going to find a way to fly across that gorge?
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You're gonna have to solve that problem by watching our next lesson.

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この動画で英語スピーキング練習する理由

日常生活や学習で直面する「問題」をテーマにしたこの動画は、shadow speak(シャドーイング)の理想的な教材です。話者が親しみやすい例を使いながら論理的に説明する様子は、自然な英語のリズムと語彙力を養うのに最適です。特に、問題を定義するプロセスを具体的に語る部分は、説明的なスピーキングの練習に役立ち、実践的なコミュニケーション能力を向上させます。動画で英語学習をすることで、単なる文法や単語だけでなく、リアルな会話の流れを体感できます。

文脈の中の文法と表現

  • "might seem like a pretty big deal":「かなり大きな問題に見えるかもしれない」という柔らかい表現。"might"を使うことで断定的でないニュアンスを添え、日常会話でよく使われます。
  • "follow the same series of steps":「同じ一連のステップに従う」。"series of"は「一連の」という意味で、プロセスを説明する際に重要なフレーズです。
  • "sets the stage for":「~の基礎を築く」。比喩的な表現で、何かの前提条件を作る場合に使われ、論理的な説明に欠かせません。

発音の注意点

この動画の中で、engineer(エンジニア)の発音が「エンジニアー」ではなく「エンジニア」(最後の音を軽くする)、hurricane(ハリケーン)が「ハリケーン」ではなく「ハリカン」と発音される場合があります。また、definitely(間違いなく)の"de"部分が弱くなり、「デフィニットリー」ではなく「ディフィニットリー」と聞こえることがあります。これらのトラップを避けるためには、shadowing siteで繰り返し練習し、ネイティブの発音に合わせて口の動きを覚えることが重要です。

シャドーイング(shadowspeak)をする際は、動画のスピーカーと同じリズムや抑揚を真似ることで、自然な発音と流暢さを身につけることができます。この動画を使って継続的に練習すれば、英語のスピーキング能力が飛躍的に向上するでしょう。

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
「might / may」による可能性 might/may + 動詞 — 起こりうるが確実ではないことmight seem
義務:must / have to / need to 何かが必要であることを伝えるhave to do · having to invent · need to get
「will」の未来表現 will + 動詞 — その場の決定、約束、予測You'll remember · we'll see · I'll cross
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I'm not saying · is defining

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。

シャドーイングのやり方: ステップ別の完全ガイドを読む →