シャドーイング練習: ngày 1 tháng 8, 2026 - 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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Exercise 3.
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Page 22.
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Mistakes that worked.
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Have you ever made a mistake that actually turned out to be something good?
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Believe it or not, a lot of things we use every day were simply accidents.
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Here are two of these amazing stories.
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Alexander Fleming, the Scottish scientist, was experimenting with bacteria in 1928.
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Being a rather sloppy scientist, he used to leave his culture plates all around his lab and then forget about them.
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One day after he returned from a vacation, he noticed that there was some mold on one of the bacteria samples, which had been left by an open window.
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He took a closer look and saw that there was something around the mold.
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This made him realize that the mold was able to destroy the harmful bacteria.
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That's how he discovered penicillin.
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Since then, his discovery has helped millions of people around the world recover from infections.
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Percy LeBaron Spencer, a self-taught engineer, was visiting a lab in 1946.
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As he stood in front of a magnetron, a power tube that drives a radar set,
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he noticed the chocolate bar in his pocket had started to melt.
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Spencer got curious.
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He sent a boy out for some popcorn kernels.
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When he held them near the magnetron, the popcorn exploded all over the lab.
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The next morning he brought in a kettle, cut a hole in the side, and put an egg into the pot.
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He then moved the magnetron against the hole and the egg burst.
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Spencer realized that we can use microwave radio signals to cook with, and he developed the microwave in 1947.
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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B1レベルのスピーキングレッスンは、動画「ngày 1 tháng 8, 2026」を教材にしています。 繰り返し出てくる語は次のとおりです：magnetron, mold, Spencer, bacteria, lab。 この動画には、シャドーイング用の文が22文、単語が266語あります。 音声の長さは2:14です。 話す速さは1分あたり約119語で安定しており、シャドーイングしやすいペースです。 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
動画の中で特に難しい単語14語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| bacterium 名詞 | /bækˈtɪəɹ.ɪəm/ | 細菌, バクテリア |
| mold 名詞 | /moʊld/ | 黴 |
| popcorn 名詞 | /ˈpɑp.kɔɹn/ | ポップコーン |
| microwave 名詞 | /ˈmaɪkɹoʊˌweɪv/ | マイクロ波, マイクロウェーブ |
| scientist 名詞 | /ˈsaɪəntəst/ | 科学者 |
| penicillin 名詞 | /ˌpɛn.ɪˈsɪl.ɪn/ | ペニシリン |
| kettle 名詞 | /ˈkɛ.təl/ | 薬缶 |
| kernel 名詞 | /ˈkɝ.nəl/ | 核心 |
| sloppy 形容詞 | /ˈslɑ.pi/ | ぐちゃぐちゃ, ずさんな |
| explode 動詞 | /ɪkˈsploʊd/ | 爆発する |
| melt 動詞 | /mɛlt/ | 溶ける, 溶かす |
| harmful 形容詞 | /ˈhɑɹmfl̩/ | 有害な |
| burst 動詞 | /bɜːst/ | 破裂する |
| radar 名詞 | /ˈɹeɪˌdɑɹ/ | レーダー, 電波探知機 |
注意したい発音
日本語話者が苦手な音：
- /v/ — /b/ にならないように、上の歯を下唇に当てる: microwave /ˈmaɪkɹoʊˌweɪv/, recover /ɹɪˈkʌvɚ/
- 子音の連続 — 間に母音を入れない: magnetron /ˈmæɡ.nətˌtɹɑn/, mold /moʊld/, popcorn /ˈpɑp.kɔɹn/, scientist /ˈsaɪəntəst/, sloppy /ˈslɑ.pi/
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。bacterium, mold, popcorn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。