シャドーイング練習: Why Do We Need Sleep? - 動画で英語スピーキングを学ぶ
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50 文
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Oh, hey there!
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No, excuse me, I'm so sorry.
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I'm kind of tired today because I didn't get enough sleep last night.
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Aw, thanks Squeaks, but I think I'll be alright.
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You probably already know that sleep is really important, and that we need to get plenty of it.
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Doctors think that most kids need to get about 10 to 12 hours of sleep every day.
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But sometimes it's hard to go to bed when you're supposed to, especially if you don't feel tired.
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That's why it helps to know what's going on while you're snoozing away at night, and why sleep is so important.
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Think about all the things you do during the day.
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You probably spend a lot of your day playing, or maybe going places like to school or to the store.
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All those activities and anything else you do take energy.
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Your body still uses energy when you sleep, but it uses less of it.
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Since your body uses less energy when you sleep, it has a chance to save some of that energy for later.
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So you feel good when you wake up the next morning and you're ready to take on another day.
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Sleep also gives your body a chance to focus energy on things that keep you healthy.
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For example, your body uses energy to heal and to grow while you sleep.
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Sleep also gives your body a chance to use energy to fight off the germs that can make you sick.
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So sleep is really important for your whole body.
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But there's one special part of your body that really needs sleep.
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Sleep.
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Your brain.
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Sleep not only gives your body a rest, it gives your brain a rest, too.
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Your brain is super busy during the day.
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It works really hard to make sense of all the things you see, smell, and hear.
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It makes sure that all the parts of your body are working together, it helps you make decisions, and it helps you learn new things.
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And those are just some of your brain's jobs.
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Your brain doesn't stop working when you sleep,
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but it does have a chance to slow down for a bit and to kind of figure things out.
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While you sleep, your brain organizes the things you learned about during the day, to help you remember them for later.
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Your brain also sorts out your feelings while you sleep.
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Scientists have also found out that your brain needs sleep to help you concentrate,
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so you can be better at solving problems at home and at school.
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Wow, there's a lot going on while you sleep, even if you don't remember it when you wake up!
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There is so much going on, in fact, that your body usually makes you feel pretty terrible when you don't get enough sleep.
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Too little sleep can make you feel tired, and it can make it harder for you to concentrate and solve problems.
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And since your brain helps sort out your feelings while you're sleeping, you can also feel cranky or crabby when you don't get enough sleep.
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So what can we do to make sure we get enough sleep?
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First, doctors and other sleep experts say you should have a sleep routine.
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That means we should try and do the same things every night before we go to bed.
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A sleep routine helps your body realize that it's time to go to sleep.
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A good routine might include reading a story, having a bath, or maybe listening to some soft music.
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It should also mean going to bed at about the same time every night, and getting up about the same time every morning.
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That's one of the reasons it's important to have a bedtime.
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One thing that shouldn't be part of your sleep routine is watching TV, or using a tablet or phone.
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That's because the special light from their screens can send a signal to your body that it's daytime, even when it's really time for bed.
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So now you know why it's so important to get a good night's sleep.
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I think I'm gonna go take a nap.
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Thanks for joining us on SciShow Kids!
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If you'd like to keep learning and having fun with Squeaks and me,
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hit the red subscribe button and we'll see you next time here at the Fort!
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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「Why Do We Need Sleep?」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：sleep, brain, energy, routine, gives。 この動画には、シャドーイング用の文が50文、単語が726語あります。 音声の長さは3:17です。 話す速さは速く、1分あたり約222語です。音のつながりや弱く発音される音が多くなります。 単語の92%は英語の頻出3,000語に含まれるため、語彙は分かりやすいです。
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12語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| routine 名詞 | /ɹuˈtin/ | 日課, ルーティン |
| solve 動詞 | /sɒlv/ | 解決する |
| concentrate 動詞 | /ˈkɑn.sən.tɹeɪt/ | 集中させる |
| bath 名詞 | /bɑːθ/ | 湯船, 風呂 |
| scientist 名詞 | /ˈsaɪəntəst/ | 科学者 |
| heal 動詞 | /ˈhiːl/ | 治す, 癒す |
| subscribe 動詞 | /səbˈskɹaɪb/ | 購読する |
| organize 動詞 | /ˈɔɹɡənaɪz/ | 組織する |
| daytime 名詞 | /ˈdeɪtaɪm/ | 昼間 |
| cranky 形容詞 | /kɹæki/ | 気難しい |
| germ 名詞 | /d͡ʒɝm/ | 胚芽 |
| snooze 動詞 | /snuz/ | 居眠り |
動画に出てくる句動詞
| 単語 | 発音 | 意味 |
|---|---|---|
| wake up 動詞 | /ˌweɪk ˈʌp/ | 目覚める, 目を覚ます |
| find out 動詞 | 見出す, 調べる |
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 |
|---|---|
| 「should」による助言 should + 動詞 — したほうがよいことを伝える | should have · should try |
| 動詞 + -ing enjoy, keep, stop… + -ing — 後ろに-ing形が続く動詞 | stop working · keep learning |
| 現在進行形 am/is/are + -ing — 今まさに、または最近起きていること | you're snoozing · are working · you're sleeping |
| 「will」の未来表現 will + 動詞 — その場の決定、約束、予測 | I'll be · we'll see |
注意したい発音
話し手はdon't, you're, I'mなど、短縮形や弱形を18回使っています。聞こえたとおりの短い形で発音しましょう。
日本語話者が苦手な音：
- 子音の連続 — 間に母音を入れない: solve /sɒlv/, concentrate /ˈkɑn.sən.tɹeɪt/, scientist /ˈsaɪəntəst/, subscribe /səbˈskɹaɪb/, crabby /ˈkɹæb.i/
この動画での練習方法
- 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。
- まず0.75倍速で一文ずつシャドーイングし、慣れてきたら通常の速度に戻します。
- 自分の声を録音して元の音声と比べます。routine, solve, concentrate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。