シャドーイング練習: Volcanoes for Kids | A fun and engaging introduction to volcanoes for children - 動画で英語スピーキングを学ぶ
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Volcanoes in this video we're going to learn about different types of volcanoes The earth is alive!
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Not alive like you and me, but the earth is always moving and changing and never stays the same you may see it right before your very eyes or you may not see or feel it happen at all, but it's happening right now beneath our feet the earth is changing.
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Let's explore some of the ways the earth changes. Run for your lives she's gonna blow!
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It's a volcano! A volcano is a fracture or opening in the earth's crust through which magma escapes.
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Deep in the bowels of the earth beneath the crusts are vast chambers of molten liquid rock we call magma.
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Magma can slowly cool and become hardened or magma with trapped gases can flow and feed a volcano and rise to the surface of the earth.
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When magma reaches the surface it becomes lava.
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A volcano may be active or a volcano may be dormant, which means that it's only sleeping and may someday erupt or a volcano may be extinct which means that it was once active, but we'll probably never erupt again.
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Let's explore three types of volcanoes.
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Millions of years ago the islands of Hawaii emerged from the sea powered by erupting volcanoes the formation of the islands of Hawaii are examples of shield volcanoes.
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Some of these volcanoes are active and continued to erupt, other volcanoes have been dormant for a million years. These volcanoes are massive in area and have gradual sloping sides.
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The eruptions are like fountains and lava flows are very liquid. The Loihi volcano south of the big island of Hawaii is one actively erupting volcano under the sea.
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Loihi is a seamount rising 10,000 feet from the floor of the Pacific Ocean and as it continues to erupt molten lava, it one day will become an island all its own in about a hundred thousand years.
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Shield volcanoes are not as explosive as cinder cone volcanoes, a cinder cone volcano has straight steep sides.
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In 1943, senior Pulido was working in his cornfield near the village of Parícutin, Mexico.
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Pulido tells the story that as he and his family were working in the field that the earth began to tremble and shake and right before his very eyes the ground swelled to over six feet!
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A fissure opened and grey ash and smoke poured into the air and the sound of a terrible hiss and the horrible smell of sulphur. Through the thick smoke Pulido could not find his family. He went back to the village and discovered they had arrived there safe and sound.
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Through the days and weeks and years that followed the volcano would continue to grow to over 1,300 feet high or 396 point 24 metres.
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Spewing hot smoke and ash into the air, everyone had to be evacuated and find another home as thick slow-moving lava would advance to the villages of Pparícutin and San Juan which were destroyed.
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Can you imagine how awful that would be?
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The Parícutin volcano has been very important to scientists as they have seen the birth and rise of a volcano and watch it become dormant.
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And though a cinder cone volcano may be terrible it is no match for the spectacle of a volcano Which can be far more powerful, far more terrible, far more frightening and more explosive, of course we are talking about the Stratovolcano!
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A Stratovolcano is characterized by gentle lower slopes gradually increasing too steep upper slopes. They are constructed of layers of hardened lava and volcanic ash and pumice.
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Stratovolcanoes are known to have violent eruptions expelling fiery lava fragments through the air like bombs, toxic gases fill the air and massive plumes of ash clouds carry vast distances making aviation travel impossible.
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These volcanoes are dangerous and deadly and though lava from these volcanoes flows slowly, it covers and burns and destroys everything in its path. In the Cascade Mountain Range of Southwest Washington State there rises many beautiful snow-covered peaks some of them are volcanoes.
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One of these volcanic mounts is known as Mount St. Helens. It was no secret that Mount St. Helens had been an active volcano for hundreds maybe thousands of years and volcanologists scientists who study volcanoes had been studying St. Helens with their equipment watching and waiting for another perhaps major eruption it was possible that St. Helens would not erupt in their lifetime even with fancy equipment these things are difficult to predict. Then came the spring of 1980, for months tremors and earthquakes shook the ground on the North Face of Mount St. Helens a bulge began to form volcanologist, David a Johnston, was watching and measuring the growth of the Bulge with his lasers. On May 18th 1980 David called out over the radio, "this is it, this is it!" The caldera blew with supersonic fury.
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Everything in the path of this massive eruption was wiped out for eight miles.
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David A. Johnston was camped right in the path of the most destructive volcanic eruption in known US history.
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250 homes, railways, bridges, highways, all gone. Could Mount St. Helens erupted again? Will you wait and see?
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In the world there are nearly 1500 potentially active volcanoes, 169 are in the United States. Is there one near you?
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Many volcanoes are located along the Pacific Rim, an area that reaches along South and North America along the Aleutian Islands of Alaska down the islands of Japan and the Philippines Indonesia New Zealand and the South Pacific.
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This path in the Pacific Ocean is known as the Ring of Fire.
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For millions of years our earth has been alive with erupting volcanoes in addition to those we've explored and among the most frightening and terribly destructive are Mount Vesuvius of Pompeii, Krakatoa in Indonesia and the volcanic complex in Iceland...
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and deep underneath Yellowstone National Park lies enormous chambers of molten magma which one day may find its way to the surface and become the most massive supervolcano ever!
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If you're looking for more teaching resources check us out at clarendon learning dot org.
この動画で話す練習をする理由は？
この動画「子供のための火山」では、火山の種類やそれに関連する地球の変化について楽しく学ぶことができます。子供向けに設計された内容は、英語を学びたいすべての人にとって非常に役立つリソースです。英語スピーキング練習やshadow speechを通じて、あなたの発音や流暢さを向上させる絶好の機会です。この動画を使うことで、発音の正確さを意識しながら、実際の会話に近い文脈で練習を行うことができます。
文法と表現の文脈
- It means that... - この表現は条件や状況を説明する際に使われます。例えば、「それは活火山であることを意味します」というように使うことで、火山の状態を具体的に説明できます。
- Can you imagine... - 想像を促すこのフレーズは、聞き手に考えさせる強力な道具です。「あなたはそれがどれほど恐ろしいか想像できますか？」という風に、感情を引き出すために効果的です。
- There are nearly... - 数の表現において非常に便利です。例文として「世界にはほぼ1500の潜在的に活火山があります」と言うことで、情報を伝えながら、数字に基づく具体性を与えています。
一般的な発音の罠
この動画では、特定の発音に注意が必要です。「volcano」や「magma」は特に中でも難しい単語です。これらの単語を正しく発音するためには、強調する音節を意識し、YouTubeで英語学習を通じて多くの例を聞くと良いでしょう。また、「eruption」や「lava」のような言葉も、ネイティブのアクセントでの発音に挑戦する際の障害となることがあります。英語シャドーイングを行うことで、これらの難しい単語の正確な音を身につけることができます。
このように、様々な火山の特性や歴史を学ぶことは、単なる知識を超えて、実際のコミュニケーション能力を向上させるための良い機会です。動画を観ながら、自信を持って英語を話す準備をしましょう!
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。