シャドーイング練習: HOW IT WORKS - Grand Piano - 動画で英語スピーキングを学ぶ
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36 文
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It's big, it's beautiful, it's a grand piano and each one of these majestic instruments is exquisitely handcrafted.
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The main difference from a standard upright piano is
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that in a grand the strings are longer and have to be arranged horizontally.
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The sound is produced by a felt hammer hitting up to three strings at once.
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The thicker and longer the strings are the lower the note.
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Each string begins life as a single steel wire attached to a spinning machine.
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One of the workers scuffs up the surface with sandpaper so
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when a copper wire is wrapped
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around it'll stay in
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place he adds another wire
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to the string to give it a deeper bass note the
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strings for a grand piano range in length from just five centimeters to over two meters.
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That's what allows them to produce an incredibly wide range of notes.
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Finally, he tightens the end of the wire to stop it from uncoiling.
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They have to use layers of flexible wood for the piano's casing, so they'll be able to bend it into the traditional shape.
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They're glued together and then squashed in a press until the adhesives dry.
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Then it's taken over to another press which will give it its shape.
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It's a tough job to get it into position and requires a bit of muscle and a lot of teamwork.
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When the strings are fixed, they'll have a combined tension of 24 tons, so the metal frame needs to be a super tough structure.
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It's made of precision cast iron, in a technique that was developed in the early 19th century.
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A cocktail of bronze powder, dissolver and thickener is sprayed onto the metal surface to fill any pores and give the frame a smooth finish.
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The metal frame weighs about 170 kilograms and has to be lifted into the wooden casing with a pulley.
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Then it's time to fix the strings, all 240 of them.
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Low notes have just got one string but the middle and higher notes have two or three to make them louder.
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They're called bichords and trichords.
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Each individual string has to be stressed until it reaches the exact pitch.
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Finally, they check the strings with a felt hammer.
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The hammer is controlled by a mechanism that enables a series of notes to be played consecutively at high speed.
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The workings of the piano are now complete, but before it can be fitted into the casing, an expert must check that all the hammers reach the same keystroke height,
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so they produce an even sound.
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A key has to drop under a weight of 52 grams, and they all have to be tested one by one.
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Who said the music industry was glamorous?
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All that remains is the final assembly.
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Every individual grand piano is handcrafted to the highest standards.
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That's why this factory builds, on average, just one a day.
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We'll be right back.
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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36文、単語が484語あります。 音声の長さは4:42です。 話す速さはゆっくりで、1分あたり約103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76%だけなので、語彙は難しめです。
この動画の重要語彙
動画に出てくる覚えておきたい単語15語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| string 名詞 | /stɹɪŋ/ | 紐 |
| piano 名詞 | /piˈænɪː/ | ピアノ |
| wire 名詞 | /ˈwaɪɚ/ | 針金, 線 |
| hammer 名詞 | /ˈhæmɚ/ | 金槌, 槌 |
| technique 名詞 | /tɛkˈniːk/ | 技術 |
| thick 形容詞 | /θɪk/ | 太い, 厚い |
| muscle 名詞 | /ˈmʌs.əl/ | 筋肉, 筋 |
| pitch 名詞 | /pɪt͡ʃ/ | 投球 |
| worker 名詞 | /ˈwɝ.kɚ/ | 労働者, 勤労者 |
| layer 名詞 | /ˈleɪ̯ɚ/ | 層, 膜 |
| smooth 形容詞 | /smuːð/ | スムース |
| spin 動詞 | /spɪn/ | 回転する |
| wooden 形容詞 | /ˈwʊdn̩/ | 木製 |
| ton 名詞 | /tʌn/ | トン |
| bass 名詞 | /beɪs/ | ベース |
注意したい発音
話し手はthey'll, they're, it'llなど、短縮形や弱形を6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。
- 「th」の音: thick /θɪk/, smooth /smuːð/
- 「sh」と「zh」の音: tension /ˈtɛnʃən/, precision /pɹɪˈsɪʒ.ən/, squash /skwɔʃ/
- 長い単語（アクセントの位置に注意）: incredibly /ɪŋˈkɹɛdɪbli/, mechanism /ˈmɛk.ə.nɪ.zəm/
この動画での練習方法
- 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。
- 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。
- 自分の声を録音して元の音声と比べます。string, piano, wireなどの単語に特に注意しましょう。
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。