シャドーイング練習: How Does Dialysis Work? | Kidneys & Blood Cleaning Explained | Dr. Binocs Show - 動画で英語スピーキングを学ぶ

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Eww!
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The water's dirty!
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Oh dear!
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Looks like our filters tired, Kitty!
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Filtering isn't easy, you know!
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Even our kidneys can get worn out!
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Really?
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What happens then?
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The humans need a little artificial help.
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Let me show you by answering how dialysis works.
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Zoom in!
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Every day, your two bean -shaped organs called kidneys quietly pull off one of the most amazing jobs in your body.
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They clean your blood.
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They remove waste like urea, valence, electrolytes such as sodium and potassium and regulate fluid levels,
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blood pressure and even red blood cell production.
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The purified blood then returns to circulation while the waste is excreted from the body as urine.
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But sometimes, due to conditions such as diabetes, long -term high blood pressure,
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severe infections or certain genetic disorders,
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the kidneys may lose their ability to function properly this loss of function is known as kidney failure
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or renal failure when this happens toxins fluids
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and salts begin to build up in the body leading to fatigue nausea swelling
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and further increases in blood pressure if left untreated these imbalances can damage the heart,
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lungs and other vital organs.
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That's where dialysis comes in.
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An artificial way to take over the kidneys cleansing job of removing waste and extra fluid from the blood.
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But then how does it work?
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Well there are two main types of dialysis.
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Hemodialysis and peritoneal dialysis.
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Each using a different method but based on the same scientific principles of diffusion and osmosis
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The movement of particles and water across a semi -permeable membrane
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In hemodialysis, blood is cleansed outside the body using a machine called a dialyzer
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Often referred to as an artificial kidney
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To prepare for treatment, a small surgical procedure creates a vascular access such as an arteriovenous AV fistula,
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a direct connection between an artery and a vein or a graft, which is a soft plastic tube connecting the two.
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During each dialysis session, two needles are inserted into this access point.
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Blood flows out of the body through one needle and travels through tiny hollow fibres inside the dialyser.
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As it moves along, waste molecules like urea
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and excess potassium pass through the fibre walls into a special cleansing fluid called dialysate,
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while essential components remain in the bloodstream.
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The cleaned blood then returns to the body through the second needle and into the veins.
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This process usually takes about four hours and is performed three times a week.
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Peritoneal dialysis, on the other hand, turns the body into its own filter.
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A soft tube called a catheter is surgically placed into the patient's abdomen.
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The peritoneum, the thin membrane lining the abdominal cavity,
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acts as the natural semi -permeable filter.
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Dylacate fluid is infused into the cavity where it absorbs wastes and excess water from the surrounding blood vessels.
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After several hours, the used fluid now containing toxins is drained into a collection bag
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this process called an exchange can be done manually several times a day
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or automatically overnight with the machine
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while dialysis can't cure kidney disease it provides a remarkable bridge keeping people alive
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and healthy enough to await a transplant or continue living and act manageable life.
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Trivia time!
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Did you know each kidney is roughly the size of a closed fist and weighs just under 0 .4 kilograms?
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Also, each kidney contains approximately 1 million microscopic filtering units called nephrons.
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Sketching time!
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Today's sketch of the day goes to scarlet harris hope
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you learned something critical today until next time
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it's me dr binocs zooming out kitty why
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or not did you bring a dialysis machine to replace the ordinary water filter
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Oh, Kitty, never mind.

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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

このスピーキングレッスンは、動画「How Does Dialysis Work?」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：blood, kidney, dialysis, fluid, waste。 この動画には、シャドーイング用の文が60文、単語が610語あります。 音声の長さは5:52です。 話す速さはゆっくりで、1分あたり約104語です。一つ一つの音をまねる余裕があります。 英語の頻出3,000語に含まれる単語は70%だけなので、語彙は難しめです。

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
kidney 名詞/ˈkɪdni/腎臓
filter 名詞/ˈfɪltɚ/濾過器, フィルター
fluid 名詞/ˈflu.ɪd/流体, 液体
artificial 形容詞/ˌɑː.tɪˈfɪʃ.əl/人工の
kitty 名詞/ˈkɪti/仔猫, 子猫
needle 名詞/ˈniː.dəl/針
tube 名詞/tuːb/チューブ
organ 名詞/ˈɔːɡən/器官
sketch 名詞/ˈskɛt͡ʃ/スケッチ, 素描
zoom 動詞/zuːm/猛スピードで進む
membrane 名詞/ˈmɛm.bɹeɪn/膜
vein 名詞/veɪn/静脈
fibre 名詞/ˈfaɪ.bə(ɹ)/繊維
cavity 名詞/ˈkæv.ɪt.i/腔
potassium 名詞/pəˈtæsiəm/カリウム

動画に出てくる句動詞

単語発音意味
take over 動詞引き受ける
wear out 動詞擦り減らす
zoom out 動詞/ˌzuːm ˈaʊt/ズームアウトする, 縮小する

注意したい発音

  • 「th」の音: thin /ˈθɪn/, catheter /ˈkæθɪtɚ/
  • 「sh」と「zh」の音: artificial /ˌɑː.tɪˈfɪʃ.əl/, infection /ɪnˈfɛkʃən/, circulation /ˌsɝkjʊˈleɪʃən/, diffusion /dɪˈfju.ʒən/
  • 長い単語（アクセントの位置に注意）: artificial /ˌɑː.tɪˈfɪʃ.əl/, ordinary /ˈɔɹdɪnɛɹi/, circulation /ˌsɝkjʊˈleɪʃən/, manually /ˈmænj(u)əliː/, dialysis /daɪˈælɪsɪs/

日本語話者が苦手な音：

  • /r/ と /l/ の区別 — /l/ は舌先を歯茎につけ、/r/ はどこにもつけない: roughly /ˈɹʌf.li/, principle /ˈpɹɪn.sɪ.pəl/, remarkable /ɹɪˈmɑɹ.kə.bl̩/, particle /ˈpɑɹtək(ə)l/, regulate /ˈɹɛɡ.jə.leɪt/
  • /v/ — /b/ にならないように、上の歯を下唇に当てる: vein /veɪn/, cavity /ˈkæv.ɪt.i/, vital /ˈvaɪtəl/, vessel /ˈvɛsəl/, overnight /əʊvə(ɹ)ˈnaɪt/
  • /f/ — 「フ」ではなく、上の歯と下唇で出す: filter /ˈfɪltɚ/, fluid /ˈflu.ɪd/, artificial /ˌɑː.tɪˈfɪʃ.əl/, fibre /ˈfaɪ.bə(ɹ)/, refer /ɹɪˈfɜː/

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. 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。
  3. 自分の声を録音して元の音声と比べます。kidney, filter, fluid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 →