シャドーイング練習: RE3 Unit 7A - 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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Track 13, Reading 7a Powering the Planet Despite modern society's heavy dependence on fossil fuels for energy,
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most people are aware that the supply of these fuels is finite.
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As oil and other fossil fuels become more costly and difficult to find, researchers are looking at alternative energy sources,
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including solar, wind, and even nuclear power.
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But which substitute, if any, is the right one?
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Solar.
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Solar panels catch energy directly from the sun and convert it into electricity.
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One of the world's largest solar power stations is in the Indian state of Tamil Nadu,
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where more than 2 .5 million solar panels have the capacity to generate enough power for 750 ,000 people.
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But unlike the burning of fossil fuels, the process used to create all that solar energy produces no emissions.
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Today, however, solar power provides less than 2 % of the world's energy,
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primarily because the cost of the panels is still very high.
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But price is only one issue.
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Clouds and darkness also cause solar panels to produce less energy.
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This requires that additional power sources, such as batteries, be available.
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Some scientists think the solution to this problem can be found in space, which is the ideal place to gather energy from the sun.
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With no clouds and no night time, a space -based solar power station could operate constantly.
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These stations would send the power back to Earth, which could then be turned into electricity for consumption.
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Advocates of solar space stations say this technology would initially require a lot of money, but eventually, it could provide continuous,
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clean energy that would be cheaper than other fuels.
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Also, unlike other energy sources, solar power from space would last as long as the sun shines,
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and would guarantee everyone on Earth all the energy they need.
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Wind Wind, the fastest -growing alternative energy source, is another way of collecting energy from the sun.
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Wind is caused by the sun's heat rather than its light.
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Therefore, unlike solar power, wind power works well even on cloudy days.
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All over the world, incentives designed to decrease the dependence on oil and coal have led to a steep increase in wind -powered energy.
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Today, Asia leads the world in wind power, producing around 230 ,000 megawatts,
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the equivalent of 230 large coal -powered plants.
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Europe produces nearly 180 ,000 megawatts.
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North America remains a distant third at 105 ,000.
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Despite its successes, some people are protesting wind power development, saying the turbines are both noisy and ugly.
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Just outside England's Lake District, a protected national park, a dozen existing wind towers are due to be removed.
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This is a high -quality landscape, says one local homeowner.
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They shouldn't be putting those things in here.
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There are other challenges, too.
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If the wind doesn't blow, the turbines are not able to produce adequate energy.
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As a result, other power sources are needed.
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In contrast, a strong wind can create too much power.
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In cases like this, the energy company must sell the extra power at a much reduced rate, which is not good for business.
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What's needed for both wind and solar is a way to store a large energy surplus.
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However, most systems are still decades away from making this a reality.
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On the plus side, both wind and solar power enable people to generate their own energy where they live.
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People can have their own windmills or solar panels with batteries for calm days.
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Nuclear In the 1970s, nuclear power was seen as the main energy alternative.
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Nuclear power produces vast amounts of electricity more cheaply than gas or coal with no carbon emissions.
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For a number of years in the 1980s and 90s, however, use of nuclear power declined due to accidents,
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concerns about nuclear waste storage and disposal, and high construction costs.
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Today, times are changing.
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Worldwide, about 450 plants generate 11 % of the planet's electric power,
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and some countries have invested heavily in nuclear energy.
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France, for instance, gets three -quarters of its electricity from nuclear power, the highest percentage of any country.
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China has started to build one or two new plants a year, and India has also begun to utilize nuclear energy on a
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large scale however there are still concerns about the safety of
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nuclear power as seen for example at the fukushima nuclear power
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plant in japan the country had to close the nuclear reactors at fukushima
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when the plant was hit by a tsunami
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and as a consequence began releasing substantial amounts of radioactive materials many still believe however
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that nuclear power is one of the future's greenest energy alternatives.
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In the end, are any of these sources alone the answer to our current energy problems?
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The short answer is no, but used in some combination, along with other power sources,
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we may find ways to reduce and eventually eliminate our dependence on fossil fuels.
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このレッスンについて

このビデオでは、化石燃料の代替エネルギー源としての太陽光、風力、原子力について学びます。太陽光発電所の例や風力発電の課題、原子力の盛衰など、実用的な情報が満載です。英語のリーディングとリスニング、さらにはスピーキングの練習に最適で、IELTS スピーキング対策にも役立つ内容です。情報を吸収しながら、自然な英語のリズムを身につけましょう。

重要な語彙とフレーズ

  • finite：有限の
  • emissions：排出物（二酸化炭素など）
  • incentives：奨励措置
  • turbines：タービン（風車の発電機部分）
  • nuclear waste：核廃棄物

練習のコツ

このビデオのスピードは中程度で、説明的なトーンが特徴です。英語シャドーイング（シャドースピーク）をする際は、まず全体を聞いてリズムを捉え、次に1文ずつ真似して発音しましょう。「solar panels」「wind turbines」などの複合語は、繋がりを自然に発音することが重要です。英語の発音を良くするコツとして、「the supply of these fuels」のような弱読みの部分も注意して聴き、真似します。また、「However, most systems are still decades away...」のような長い文は、ポーズを入れる位置を覚えることで、流暢さが向上します。毎日5分ずつ練習すれば、短期間でスピーキングの自信がつきます！

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can be found · be turned · is caused
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have led · have invested · has started
関係詞節 who / which + 節 — 人や物について情報を加えるspace, which is · rate, which is

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 →