シャドーイング練習: How to sleep better by knowing your chronotype - 動画で英語スピーキングを学ぶ

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Hey everyone, Dr. Michael Bruce, the sleep doctor here.

I figured out since I wrote a book about chronotypes, I might as well explain to you exactly what they are.

A chronotype is your genetic predetermined sleep schedule.

Many people have heard of this concept, but not actually heard the term chronotype.

What we're talking about here is if anybody out there has ever been called an early bird or a night owl.

So why would this be important?

If you understand what your chronotype is, then you know what your hormone schedule is,

which becomes critically important for any and all activities that you do throughout the day.

As an example, it turns out there's a perfect time of day to do just about everything based on your chronotype.

And yes, I'm talking about everything from intimacy, to drinking a cup of coffee, to even working out.

You can do all of them better if you know your chronotype.

What are the four chronotypes?

First, we have lions.

They replace early birds.

These are the folks that make a list every single day and go from step one to step two to step three.

High energy people, very interested in exercise and fitness, and again, early risers.

Unfortunately, socially, they don't do so well.

I mean, let's be honest, dinner and a movie is kind of out for a lion because they've been up since 5 .30 in the morning.

So pros and cons in either direction.

Next come the bears.

That represents the people in between the early birds and the night owls.

Believe it or not, they make up almost 55 % of the population.

Honestly, I wish I was a bear.

The nine to five work schedule works perfect for a bear.

A lot of my bears have a tendency to be the people that get the work done.

Sometimes they're extroverted, sometimes they're introverted.

They're always fun to be around and usually a great friend.

Next are the night owls, and I call them wolves.

I personally am a night owl, hardly ever go to bed before 11 .30 or 12, and that's very characteristic of wolfish characteristics.

One of the things we know about people who fall into this category is these have a tendency to be my creatives,

my artists, my actors, my authors, people of that nature.

I mean, let's be honest, when you meet somebody who's really creative and you say, when did you get your inspiration?

They usually say two o 'clock in the morning.

The final category, which is the new category, which I discovered is called the dolphin.

Dolphins actually represent people with very erratic genetic sleep schedules.

So these people actually come to me oftentimes, and that's really who I wrote the book for,

with a schedule where they look like a lion wanting to wake up early and meet the day,

but unfortunately they get such poor sleep at night, it's incredibly, incredibly difficult.

Now, you might be saying, okay, well, I've listened to what you said, Dr. Bruce, but how do I know what my personal chronotype is?

You can learn your chronotype by visiting thesleepdoctor .com and take my chronotype quiz.

Now, another question people say is, well, once I took the quiz, I learned I was a lion.

Can I change my chronotype?

Well, to be honest with you, no, it's genetic.

However, there's something out there called chronolongevity, which I think is pretty interesting.

Believe it or not, we all go through all of the different chronotypes.

So when we're an itty -bitty baby, we're a lion, waking up early and going to bed early.

Once the children hit that toddler through middle school phase,

you're a bear going to bed and waking up right around the time that the sun comes up.

Then what happens?

You go into adolescence, and then you become a wolf.

I mean, remember when you were 14, 15 years old, all you wanted to do was stay up late and sleep late.

When you hit about 20, 22 years old, your body sets for about 30 to 40 years, And then something else happens.

You actually start to go backwards.

You ever notice how your grandparents want to eat dinner at 4 .30 in the afternoon?

That's because their phase is moving backwards because of that change in melatonin.

So actually, you actually get a second chance to be a lion if you ever wanted to be.

Now, what if I just don't feel like I fit inside one chronotype?

This is something that's pretty common, and we oftentimes think these people are the dolphin or the insomnia chronotype.

But if you want to get a better sense for your chronotype, try following a consistent schedule for two weeks, then retake the quiz.

What do I mean by consistent schedule?

I want you eating at the right times, which means stopping food by about two hours before bed, avoiding caffeine after 2 p .m.,

and following a consistent wake -up schedule.

The thing that affects your circadian rhythm the most turns out to be the hormone melatonin.

To learn more about melatonin and whether it's right for you, check out our video.

This is Dr. Michael Bruce, the sleep doctor, wishing you...

Sweet dream.

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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 to sleep better by knowing your chronotype」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：chronotype, schedule, lion, sleep, bear。この動画には、シャドーイング用の文が66文、単語が872語あります。音声の長さは4:22です。話す速さは速く、1分あたり約200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82%は英語の頻出3,000語に含まれます。残りは練習の前に確認しておきましょう。

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
lion 名詞	/ˈlaɪən/	ライオン, 獅子
genetic 形容詞	/d͡ʒəˈnɛt.ɪk/	遺伝的
quiz 名詞	/kwɪz/	クイズ
dolphin 名詞	/ˈdɑlf.ɪn/	海豚, イルカ
wolf 名詞	/wʊlf/	狼, オオカミ
characteristic 名詞	/ˌkæɹ(ə)ktəˈɹɪstɪk/	特性, 特徴
tendency 名詞	/ˈtɛn.dən.si/	傾向, 趨勢
owl 名詞	/aʊ(ə)l/	フクロウ, 梟
hormone 名詞	/ˈhoɹmoʊn/	ホルモン
clock 名詞	/klɑk/	走行距離計
discover 動詞	/dɪˈskʌvə/	発見する, 見つける
fitness 名詞	/ˈfɪt.nəs/	健康, フィットネス
con 動詞	/kɑn/	騙す, ごまかす
rhythm 名詞	/ˈɹɪð.əm/	リズム
toddler 名詞	/ˈtɑdlɚ/	幼児, 子供

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
check out 動詞		試験する, 検査する
come up 動詞		上がる, 登る

繰り返し練習したい文

動画に出てくる短く完結した文です。日常会話でそのまま使えます。

Bruce, but how do I know what my personal chronotype is?
Can I change my chronotype?
What do I mean by consistent schedule?

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
現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係している	have heard · has ever been called · they've been
関係詞節 who / which + 節 — 人や物について情報を加える	people who fall · category, which is · times, which means
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	been called · is called

注意したい発音

話し手はthey're, we're, don'tなど、短縮形や弱形を12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。

「sh」と「zh」の音: inspiration /ˌɪn.spɪˈɹeɪ.ʃən/, socially /ˈsoʊʃəli/, wolfish /ˈwʊlfiʃ/
長い単語（アクセントの位置に注意）: incredibly /ɪŋˈkɹɛdɪbli/, characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/, inspiration /ˌɪn.spɪˈɹeɪ.ʃən/, critically /ˈkɹɪt.ɪ.kə.li/, intimacy /ˈɪn.tɪ.mə.si/

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: incredibly /ɪŋˈkɹɛdɪbli/, critically /ˈkɹɪt.ɪ.kə.li/
/v/ — /b/ にならないように、上の歯を下唇に当てる: discover /dɪˈskʌvə/, extroverted /ˈɛkstɹəˌvəɹtɪd/, introverted /ˈɪn.tɹəˌvɜːɹ.təd/
/f/ — 「フ」ではなく、上の歯と下唇で出す: dolphin /ˈdɑlf.ɪn/, wolf /wʊlf/, fitness /ˈfɪt.nəs/, folk /foʊk/, caffeine /ˈkæfiːn/

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。lion, genetic, quiz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 →

シャドーイング練習: How to sleep better by knowing your chronotype - 動画で英語スピーキングを学ぶ

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