シャドーイング練習: "Great Inventors: Benjamin Franklin" by Adventure Academy - 動画で英語スピーキングを学ぶ

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60 文
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Good day, Benjamin!
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Why do you swim with pieces of wood attached to your wrists?
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I had hoped I might swim faster with them.
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Did you make them yourself?
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I did, yes.
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How interesting!
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And do they work?
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Yes, but they tire my wrists, so I shall work to improve their design.
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Live and learn, I say.
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You're awfully clever, Benjamin Franklin.
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Benjamin Franklin, one of America's founding fathers, co -writer of the United States Constitution,
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one of the most celebrated Americans the country has ever seen, and a master inventor as well.
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Besides the wooden swim fins he invented when he was just 11 years old, Benjamin Franklin also invented a wood -burning stove,
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a glass instrument, the lightning rod, and a new type of eyeglasses called bifocals.
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Franklin's inventions improved the lives of people around the world.
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One invention in particular saved countless lives.
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How did he do it?
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How did one person come up with the ideas for so many useful inventions?
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To find out, let's go back to the 18th century, when Benjamin Franklin was 40 years old.
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1746. The 13 American colonies are in the iron grip of King George II of England.
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It will be years before people hear about the Boston Tea Party, Paul Revere's midnight ride, or a Revolutionary War general by the name of George Washington.
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But they have heard of Benjamin Franklin.
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Born into the family of a soap and candle maker, Franklin didn't have much as a child,
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but he became one of America's most famous and successful citizens with his passion, knowledge, and unstoppable drive.
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One might say that Benjamin Franklin never met a problem he didn't want to solve, and in 1746, that problem was lightning.
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He observed that when lightning struck, it not only caused fires,
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but it could surge through buildings causing great injury and even death to the people inside.
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Franklin became fascinated by experiments that other scientists were doing with lightning and electricity.
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He decided to conduct experiments of his own, including one of the most famous experiments in all of history.
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He attached a metal wire and a key to a kite and flew it into a thunderstorm,
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proving once and for all that lightning is actually a form of electricity.
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Franklin then came up with the idea for an invention called a lightning rod.
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This pointed metal rod was attached to the top of a
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building with a wire running down the outside of the building to another pointed rod buried in the ground.
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When a building was struck by lightning, the wire would safely carry the electricity from the lightning into the ground,
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thus protecting the building and the people inside it.
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As Franklin himself wrote, May not this be of use to mankind in preserving houses,
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churches, ships, etc., from the stroke of lightning?
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Franklin never stopped inventing, even 40 years later at the age of 78.
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As he got older, his eyesight had gotten worse, and so he discovered another problem to solve.
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He found that he needed to keep switching back
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and forth between eyeglasses that helped him see far away and eyeglasses that helped him see close enough to read.
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Oh, I can take it no longer.
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This infernal switching shall drive me mad.
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So what did he do?
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He improved upon the work of inventors before him by sawing the lenses of both eyeglasses in half
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and attaching one to the top of the other.
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To see distant objects, he would look up through the top half of the lens.
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To see things close up, he would look down through the bottom half.
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Referring to his bifocals as double spectacles, Franklin wrote to his friend that he was, Happy in the invention of double spectacles,
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which serving for distant objects as well as near ones, make my eyes as useful to me as ever they were.
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Such was Franklin's ingenuity, his ability to create solutions to real everyday problems,
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that modern forms of swim fins and bifocals are widely in use today.
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and lightning rods continue to save lives all around the world.
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Did Franklin ever profit from any of his inventions?
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Not at all.
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He gave the plans for his inventions away, or free.
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As Franklin wrote, We should be glad of an opportunity to serve others by any invention of ours,
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and this we should do freely and generously.
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This was Benjamin Franklin and why he is still considered to be one of America's greatest inventors.

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覚えておきたいフレーズとコロケーション

  • "I had hoped I might...":「~できると思っていました」。希望や仮定を表す柔らかい表現で、会話で使うと自然な印象を与えます。
  • "Live and learn":「失敗は成功のもと」「学び続けること」。軽い口調で使われ、経験から学ぶことを表します。
  • "improve the design":「デザインを改善する」。発明や創作に関する会話で頻繁に使われるコロケーションです。
  • "save countless lives":「無数の命を救う」。発明の重要性を強調する際に効果的なフレーズです。
  • "switch back and forth between...":「~の間で行ったり来たりする」。二つのものを交互に使う様子を表し、日常的な場面でも活用できます。

あなたのシャドーイングチャレンジ

英語の発音を良くするためには、シャドーイング(shadowspeak)が非常に効果的です。このビデオの会話部分を選び、以下のステップで練習してみましょう。まず、ネイティブスピーカーの発音を注意深く聞き、アクセントやイントネーションを覚えます。次に、1文ずつ真似て発声し、自分の声とネイティブの声の違いを確認します。特に「Live and learn」のような短いフレーズは、リズムを合わせて繰り返し練習しましょう。この練習を続けることで、自然な発音と流暢さが身につきます。shadow speakのコツは「即時反応」です。少し遅れてでも、ネイティブの発音に追従するように努めてください。

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was attached · was struck · is still considered
現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係しているhas ever seen · have heard
「should」による助言 should + 動詞 — したほうがよいことを伝えるshould be · should do
「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 swim · might say

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。

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