シャドーイング練習: Lighthouse Lab – Floating and Sinking - 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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The Lighthouse Lab I'm going to go ahead and put it in the middle of the middle.
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Thank you.
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Oh, hey there.
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If you've ever taken a bath before, you'll have noticed that some things Like this rubber duck, Stay on top of the water.
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They float.
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Other things, like this bath plug, sink to the bottom of the bath.
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They sink in water. So what causes this?
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Well, the simple answer has to do with density.
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Density is the amount of mass an object has in a given volume.
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The more mass an object has in a given volume, the more dense it is.
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Objects that are more dense than water will sink to the bottom.
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But objects that are less dense than water will float on the top.
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Our rubber duckies volume is mostly made up of air which is less dense than water.
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That's why it floats on top.
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Take a look at these objects.
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Let's make predictions about which ones will float or sink when placed in this bath of water.
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Thank you.
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This is a ball of modelling clay.
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Hmm, it feels pretty heavy.
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I think it might sink.
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What do you think?
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Yep.
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It's definitely more dense than water.
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Thank you.
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What about this metal coin?
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Metal is pretty heavy.
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I think this is definitely going to sink in water.
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Yep.
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Definitely more dense than water.
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This polystyrene ball is very light.
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I think this is definitely less dense than the water.
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What do you think?
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Yep.
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It floats.
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What about this ping pong ball?
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It feels very light too.
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I think it's less dense than water.
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Yep.
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It floats.
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What about this glass marble?
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Hmm.
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Yep, definitely more dense than the water.
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This is a wooden block.
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Hmm.
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I'm not sure about this one.
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What do you think?
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Wow, it floats.
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So the wooden block is less dense than water.
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That was fun, wasn't it, rubber ducky?
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What's that?
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You want to go for another swim?
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Here you go.
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See you next time in the Lighthouse Lab.
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Music.
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このレッスンの語彙とスピーキングのポイント

この動画には、シャドーイング用の文が54文、単語が348語あります。 音声の長さは3:17です。 話す速さはゆっくりで、1分あたり約106語です。一つ一つの音をまねる余裕があります。 英語の頻出3,000語に含まれる単語は79%だけなので、語彙は難しめです。

この動画の重要語彙

動画に出てくるやや難しい単語15語を、発音と意味つきで紹介します。

  • dense /ˈdɛns/ (形容詞) — 濃い, 密. Having relatively high density.
  • float /fləʊt/ (動詞) — 浮かぶ, 浮く. To be supported by a fluid of greater density (than the object).
  • sink /ˈsɪŋk/ (動詞) — 沈む. To descend or submerge (or to cause to do so) into a liquid or similar substance.
  • bath /bɑːθ/ (名詞) — 湯船, 風呂. A tub or pool which is used for bathing: bathtub.
  • rubber /ˈɹʌbɚ/ (名詞) — ゴム. Pliable material derived from the sap of the rubber tree; a hydrocarbon biopolymer of isoprene.
  • density /ˈdɛn.sə.ti/ (名詞) — 密度, 濃度. A measure of the mass of matter contained by a unit volume.
  • wooden /ˈwʊdn̩/ (形容詞) — 木製. Made of wood.
  • painful /ˈpeɪn.fl̩/ (形容詞) — 痛い, 痛みの伴う. Causing pain or distress, either physical or mental.
  • clay /kleɪ/ (名詞) — 粘土. A mineral substance made up of small crystals of silica and alumina, that is ductile when moist; the material of pre-fired ceramics.
  • duck /dʌk/ (名詞) — 鴨, カモ. Any of certain aquatic birds of the family Anatidae, having a flat bill and webbed feet, distinguished from swans and geese by generally being smaller and…
  • swim /swɪm/ (動詞) — 泳ぐ. To move through the water, without touching the bottom; to propel oneself in water by natural means.
  • coin /ˈkoɪ̯n/ (名詞) — 硬貨, 玉. A piece of currency, usually metallic and in the shape of a disc, but sometimes polygonal, or with a hole in the middle.
  • plug /plʌɡ/ (名詞) — プラグ. A pronged connecting device which fits into a mating socket, especially an electrical one.
  • marble /ˈmɑɹ.bəl/ (名詞) — 大理石, マーブル. A metamorphic rock of crystalline limestone.
  • prediction /pɹɪˈdɪkʃən/ (名詞) — 予言, 予測. A statement of what will happen in the future.

動画に出てくる句動詞

  • go ahead /ˌɡoʊ əˈhɛd/ (動詞) — どうぞお先に. To proceed with; to begin.

注意したい発音

話し手はI'm, wasn't, you'llなど、短縮形や弱形を5回使っています。聞こえたとおりの短い形で発音しましょう。

この動画での練習方法

  1. まず声を出さずに動画を最後まで聞き、知らない単語をメモします。
  2. 通常の速度で一文ずつシャドーイングし、話し手のリズムに合うまで繰り返します。
  3. 自分の声を録音して元の音声と比べます。dense, float, sinkなどの単語に特に注意しましょう。

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
比較級 -er than / more … than — 二つのものを比べるmore dense than · less dense than
「will」の未来表現 will + 動詞 — その場の決定、約束、予測you'll have · will sink · will float
「going to」の未来表現 be going to + 動詞 — 予定や、起こりそうだと分かることI'm going to go · is definitely going to sink

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 →