シャドーイング練習: Bill Gates - Population - Vaccines - 動画で英語スピーキングを学ぶ
レッスンを作成中...
1
This equation has four factors, a little bit of multiplication.
2
So you've got a thing on the left, CO2, that you want to get to zero.
3
And that's going to be based on the number of people, the services each person's using on average, the energy on average for each service,
4
and the CO2 being put out per unit of energy.
5
So let's look at each one of these and see how we can get this down to zero.
6
Probably one of these numbers is going to have to get pretty near to zero.
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That's back from high school algebra.
8
But let's take a look.
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First, we've got population.
10
The world today has 6.8 billion people.
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That's headed up to about 9 billion.
12
Now, if we do a really great job on new vaccines, healthcare, reproductive health services, we could lower that by perhaps 10 or 15%.
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Vocabulary and speaking notes for this lesson
This B2 speaking lesson is built on the video “Bill Gates - Population - Vaccines”. This video has 12 sentences and 143 words to shadow. The speech runs for 0:52. The speaker talks at a natural 163 words per minute, close to everyday conversation.
Key vocabulary in this video
The 8 most advanced words in the video, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| equation noun | /ɪˈkweɪ.ʒən/ | The act or process of equating two or more things, or the state of those things being equal (that is, identical). |
| vaccine noun | /vækˈsin/ | A substance given to stimulate a body's production of antibodies and provide immunity against a disease without causing the disease itself in the treatment… |
| reproductive adjective | /ˌɹiːpɹəˈdʌktɪv/ | Of or relating to reproduction. |
| algebra noun | /ˈæl.d͡ʒɪ.bɹə/ | Elementary algebra: A system for representing and manipulating unknown quantities (variables) in equations. |
| multiplication noun | /ˌmʌltɪplɪˈkeɪʃən/ | The process of computing the sum of an addition with one and the same number a specified number of times (i.e. 4 times 5 = [0 +] 5 + 5 + 5 + 5 = 20) or any… |
| zero noun | /ˈzɪɹoʊ/ | The numeric symbol that represents the cardinal number zero. |
| factor noun | /ˈfæk.tɚ/ | An agent or representative; a reseller or distributor (sometimes with a private label); a consignee. |
| unit noun | /ˈjuː.nɪt/ | Oneness, singularity, seen as a component of a whole number; a magnitude of one. |
Phrasal verbs you will hear
| Word | Meaning |
|---|---|
| put out verb | To blind (eyes). |
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 | be based · being put |
Pronunciation to watch
- The “sh” and “zh” sounds: equation /ɪˈkweɪ.ʒən/, multiplication /ˌmʌltɪplɪˈkeɪʃən/
- Long words — get the stress right: reproductive /ˌɹiːpɹəˈdʌktɪv/, multiplication /ˌmʌltɪplɪˈkeɪʃən/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
- Record yourself and compare with the original, paying attention to words like equation, vaccine, reproductive.
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。