シャドーイング練習: 3 Reasons Why Nuclear Energy Is Awesome! 3/3 - 動画で英語スピーキングを学ぶ

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Three reasons why we should continue using nuclear energy.
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1. Nuclear energy saves lives.
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In 2013, a study conducted by NASA found that nuclear energy has prevented around 1 .8 million deaths.
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Even if you include the death tolls from Chernobyl and Fukushima, nuclear energy ranks last in death per energy unit produced.
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While nuclear waste is really toxic, it's usually stored somewhere while the toxic by -products of fossil fuels are pumped into the air we breathe every day.
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So, just by reducing the amount of fossil fuels burned, countless cases of cancer or lung disease and accidents in coal mines have been avoided.
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If we can choose between lots of dangerous stuff being put into a deep hole
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and lots and lots and lots of dangerous stuff being pumped into the atmosphere, the former seems more logical.
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Nuclear energy feels way more dangerous, though.
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Single catastrophic events burn into our memory, while coal and oil kill silently.
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It's like the death rate of flying versus driving.
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Even in the best -case scenario, it would take at least 40 years to switch to 100 % renewable energy.
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So, for as long as we continue using fossil fuels, nuclear energy will save way more lives than it destroys.
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2. Nuclear energy reduces CO2 emissions
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Nuclear energy is arguably way less harmful to the environment in terms of climate change than fossil fuels, our main source of energy.
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Since 1976, about 64 gigatons of greenhouse gas emissions have not been pumped out thanks to nuclear energy.
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And by the mid -21st century, that could amount to an additional 80 to 240 gigatons.
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Humanity's energy consumption is rising steadily.
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According to US government projections, China alone will add the equivalent of a new 600 megawatt coal plant every 10 days for the next 10 years.
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China already burns 4 billion tons of coal each year.
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Coal is cheap, relatively abundant, and easy to get to, so it's not likely that humanity will stop using it soon.
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Nuclear energy might be the only way of dampening the effects of climate change and preventing a catastrophic man -made global warming.
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Compared to the other things we do, nuclear energy is relatively clean.
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So, even if it is a good idea to quit nuclear energy long -term, it might be a good solution for the next hundred years or so, compared to the alternatives.
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3. New technologies Maybe technology will solve the problem of nuclear waste and dangerous power plants.
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The nuclear reactors we've used so far are mostly outdated technology, because nuclear innovation stopped in the 1970s.
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There are models like the thorium reactor that could solve the problem altogether.
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Thorium is abundant, really hard to turn into nuclear weapons
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and up to two orders of magnitude less wasteful than current nuclear reactors.
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The waste material might also be only dangerous for a few hundred years, in contrast to a couple of thousand years.
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One ton of thorium is estimated to provide the same amount of energy as 200 tons of uranium
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or 3 .5 million tons of coal.
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So while we cannot know for sure if alternative nuclear technology will keep its promises,
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shouldn't we at least do more research before we forgo an opportunity to solve lots of humanity's current problems?
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It might not be an easy challenge, but that hasn't stopped us before.
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So, should we use nuclear energy?
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There are risks involved in any great human endeavor, and we have to make an informed decision rather than rely on gut feeling.
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If you want to hear the other side of the argument or a short introduction to nuclear energy, click here.
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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38文、単語が591語あります。 音声の長さは3:46です。 話す速さは1分あたり約157語で、日常会話に近い自然なペースです。 単語の83%は英語の頻出3,000語に含まれます。残りは練習の前に確認しておきましょう。

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
fossil 名詞/ˈfɑsl̩/化石
solve 動詞/sɒlv/解決する
ton 名詞/tʌn/トン
pump 名詞/pʌmp/ポンプ, 喞筒
reactor 名詞/ɹiˈæktɚ/原子炉
compare 動詞/kəmˈpɛɚ/比べる, 比較する
toxic 形容詞/ˈtɒk.sɪk/毒性
abundant 形容詞/əˈbʌn.dənt/豊か, 量の多い
atmosphere 名詞/ˈætməsˌfɪɹ/大気, 大気圏
consumption 名詞/kənˈsʌmp.ʃən/消費
humanity 名詞/hjuˈmænɪti/人類
innovation 名詞/ˌɪn.əˈveɪ.ʃən/イノベーション, 革新
versus/ˈvɝsəs/対, バーサス
estimate 名詞/ˈɛs.tɪ.mət/推定
rely 動詞/ɹɪˈlaɪ/頼る, あてにする

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are pumped · have been avoided · being put
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 prevented · have been avoided · have not been pumped

注意したい発音

話し手はhasn't, shouldn't, we'veなど、短縮形や弱形を3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: breathe /bɹiːð/, altogether /ɔl.tuˈɡɛð.ɚ/, thorium /ˈθɔːɹiəm/
  • 「sh」と「zh」の音: emission /ɪˈmɪʃ.ən/, contrast /kənˈt(ʃ)ɹæst/, consumption /kənˈsʌmp.ʃən/, innovation /ˌɪn.əˈveɪ.ʃən/, projection /pɹəˈd͡ʒɛkʃən/
  • 長い単語（アクセントの位置に注意）: catastrophic /ˌkætəˈstɹɑfɪk/, humanity /hjuˈmænɪti/, innovation /ˌɪn.əˈveɪ.ʃən/, altogether /ɔl.tuˈɡɛð.ɚ/, uranium /ˌjuː.ˈɹeɪ.ni.əm/

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. まず0.75倍速で一文ずつシャドーイングし、慣れてきたら通常の速度に戻します。
  3. 自分の声を録音して元の音声と比べます。fossil, solve, ton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。

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 →