シャドーイング練習: Can AI solve crime? ⏲️ 6 Minute English - YouTubeで英語スピーキングを学ぶ
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6 Minute English from bbclearningenglish.com Hello and welcome to 6 Minute English from BBC Learning English.
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6 Minute English from bbclearningenglish.com Hello and welcome to 6 Minute English from BBC Learning English.
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I'm Beth.
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And I'm Neil.
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Don't forget that you can find a transcript and a quiz for this episode on our website, bbclearningenglish.com.
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Now, today, Neil, we're talking all about solving crime.
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Do you think you'd be a good detective?
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Actually, no, Beth, I think.
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My brain's not very good with details.
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Today, we'll be talking about how artificial intelligence might help detectives and the police investigate crimes.
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But first, I have a question for you, Beth.
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In the UK, lots of people enjoy watching fictional detectives on TV.
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These programmes are called murder mysteries and tell the story of a detective solving a crime.
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In 2020, a magazine called the Radio Times asked readers who their favourite TV detective was.
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So who do you think was the most popular?
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Was it A, Sherlock Holmes,
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B, Hercule Poirot or C, Miss Marple?
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Surely it's Sherlock Holmes.
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Well, you sound very sure but I will reveal the answer at the end of the programme.
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Now, when the police are investigating crimes in the real world,
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their techniques are often quite different from what we see on television.
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Yes, solving crimes involves collecting and reviewing lots of evidence,
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like DNA, fingerprints or CCTV.
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All of this work takes a lot of time.
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So can AI help police speed up the work and even solve crimes?
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That's the question listener Alistair had for the BBC Radio 4 programme The Artificial Human.
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And host Alex Krotoski wanted to know more.
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So Alistair, why are you asking this question?
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Tell us a little bit about yourself and where you're coming from.
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So, my name's Alistair and I'm a serving police officer.
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My background is with investigation.
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I'm looking at artificial intelligence and thinking,
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what can it do for me?
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Alex asks Alistair to explain where he's coming from.
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This means explain his perspective or point of view.
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In informal English, we'll often ask someone,
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do you get where I'm coming from?
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And we're asking whether they understand our opinion or perspective.
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Alistair explains that he's interested in how artificial intelligence could help solve crimes
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because he's a police officer with a background in investigations.
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If you have a background in something,
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it means most of your previous work or experience was related to something.
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For example, I work as a producer at BBC Learning English now making programmes but my background is in classroom teaching.
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Alistair talks about using artificial intelligence for training and asks,
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what can it do for me?
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This means, how can artificial intelligence help or improve something?
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When a crime happens, police officers have to collect and review a lot of information to find evidence.
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When you have a lot of information to review,
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it can be difficult to know what's important and find patterns which might be relevant to the crime.
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But Professor Ruth Morgan, an expert in crime and forensic science,
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thinks AI could help speed up police work,
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as she told BBC Radio 4's The Artificial Human.
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I think we're seeing a renaissance in the pattern recognition forms of evidence,
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so finger marks, footwear marks.
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There's been lots of challenges with those forms of evidence over the last ten years,
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probably, going a little bit out of favour.
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And yet, what we're beginning to see now with AI is
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that you can take a photo of a mark with your phone,
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compare that mark to the database and get real-time insight.
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Ruth says there's a renaissance in looking at patterns in evidence,
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such as finger marks or footwear marks.
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Renaissance means new interest or activity in a particular topic or area.
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This kind of evidence went a little bit out of favour over recent years because of the excitement around DNA evidence.
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If something is out of favour,
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it's less popular or appealing.
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But AI could mean that patterns in finger marks or footwear marks are useful in solving crimes again.
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This is
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because AI can be used to compare a picture of a mark with a database of pictures from other crimes
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and get real-time insight.
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The adjective real-time means the information is presented at the same time that it's happening.
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Yes.
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AI can compare lots of information very quickly,
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which makes finding patterns in evidence much easier and more reliable.
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There are some problems with using AI to solve crimes, though.
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To find these patterns, lots of private information would need to be collected,
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and police usually have to give clear reasons why they need access to certain information in their investigations.
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It's unlikely an AI-powered robot would ever replace a detective any time soon.
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Yes, and that reminds me of your question, Neil.
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I said that Sherlock Holmes was maybe the most popular detective.
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Was I right?
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You were absolutely right.
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And I think people should try the quiz on our website to find out how much they know as well.
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It's at bbclearningenglish.com.
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OK, let's recap the vocabulary we've learned,
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starting with the expression where you're coming from,
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which means your opinion or perspective on something.
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Your background is the area that you have the most work experience in.
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The question, what can this do for me,
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means how can this help or improve things.
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Renaissance means new interest or activity in something.
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If something is out of favour,
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it has become less popular or appealing.
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And the adjective real-time means information is presented as it is happening.
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Once again, our six minutes are up.
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Head to our website to find more episodes of 6 Minute English at bbclearningenglish.com.
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Goodbye for now.
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Bye.
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Shadowing English
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Shadowing Englishアプリでいつでもどこでも英語を学びましょう。 今すぐコミュニケーションスキルを向上させましょう！
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このレッスンについて
このレッスンでは、AIが犯罪を解決する手助けをする可能性について学びます。トランスクリプトからの会話を通じて、探偵としてのスキルや犯罪捜査に必要な情報の収集、分析について深く考えます。また、英語での会話力を向上させるために、特に「英語シャドーイング」を取り入れて、自信を持って話す練習をします。
重要な語彙とフレーズ
- 探偵 (detective) - 犯罪を捜査する人
- 犯罪 (crime) - 法律に違反する行為
- 証拠 (evidence) - 犯罪の解決に役立つ情報
- 人工知能 (artificial intelligence) - コンピュータが人間のように学習、推論するシステム
- 背景 (background) - 経歴や経験に基づく視点
- 情報を収集する (to collect information) - 証拠やデータを集めること
- パターン (patterns) - 繰り返し現れる規則や特徴
練習のヒント
このビデオのスピードとトーンに合わせて『英語シャドーイング』を実践するためには、以下のポイントに注意してください：
- 聴き取りやすいスピードで繰り返す - ビデオを再生し、話し手のペースに合わせて声に出してみましょう。
- 抑揚に注意する - 感情や強調を意識し、ただ単に単語を繰り返すのではなく、イントネーションにも気を付けてください。
- 短いフレーズで実施する - 最初は短いフレーズや文から始め、徐々に長い文に挑戦しましょう。
- 繰り返し学ぶ - 同じセリフを何度も繰り返すことで記憶が強化され、自然に話せるようになります。『shadow speech』の練習に役立つでしょう。
- 録音して確認 - 自分の声を録音し、発音や流暢さをチェックすることも効果的です。
このように、効果的な練習を通じて、英語を流暢に話せるようになるための第一歩を踏み出しましょう。『shadowspeaks』や『shadowing site』を利用して、さらに多くの練習材料を探してみてください。
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。