シャドーイング練習: If you're under 30, please watch this video… - 動画で英語スピーキングを学ぶ

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Did you know that most people regret their 20s?

And isn't it so stressful that we know that we should make the most of this time, but we don't know how?

That all changed when I read The Defining Decade.

Our 20s are the defining decade of adulthood.

80% of life's most defining moments take place by about age 35.

Two thirds of lifetime wage growth happens during the first 10 years of a career.

Female fertility peaks at 28.

The brain caps off its last major growth spurt.

When it comes to adult development, 30 is not the new 20.

The Defining Decade is a New York Times bestseller written by Meg Jay, a clinical psychologist who specializes in 20-somethings.

She has been working with young adults for over 25 years.

So yes, longer than many of us have been living.

When I first read this book in 2020 at age 21, one thing stuck with me most, and that is the female fertility stat.

I knew that biologically speaking, women truly have a deadline.

And not gonna lie, but the stress of my own clock constantly ticking away

sometimes even makes me wish that I wasn't born a female.

Now at age 26 with my 30s looming even closer, I need a refresher of Meg J's advice.

Thus today I'm going to share with you a summary of the defining decade going over these topics.

I will include some tidbits on ones I've been applying so far and obviously my point of view is from a female, but her advice is truly helpful to anyone.

Your 20s are something to take seriously, just like this video, so make sure to lock in, turn on full screen, and let's go.

Number one, stop comparing your life to social media.

When we're in school, there's a formula to succeed.

You get A's, decent college, whatever.

After graduating and in our first job, there's no longer a clear light at the end of the tunnel.

So without this blueprint, we turn to social media.

Of course, strangers highlight reels that they curate and put on the internet.

I should totally let that dictate how good or bad I feel about myself.

But inevitably, you do and I do.

That's just human nature, I guess.

Meg J reassures readers that very few people actually reach their potential in their 20s, maybe not even in their 30s or 40s.

So yes, you and I should stop comparing ourselves to the mega rich business owners or Instagram models.

Now, this tip is an essential foundation for everything else in this video.

Remember that comparing your life path to others is like trying to fit into a one size fits all shoe.

It doesn't make sense because we're all unique.

So stop focusing on impressing other people.

Have conviction in what you are good at

and what you want in life and most of all what you define as success.

Two, build identity capital.

You might think when it comes to career, it's most important to maximize your salary and prestige.

While financial capital is essential, of course, the most important thing to consider when it comes to your work is building your identity capital.

Identity capital is your collection of skills, relationships, and professional resources you build up over your life.

Now that is why it's important to not take dead-end jobs.

While you have the freedom and youth in your 20s, you should be pushing yourself to learn as much as possible.

So make yourself uncomfortable.

Put yourself out there.

Go to that network event on Friday night instead of just watching Netflix.

Especially if you're a new grad, it's important to have the good first job as a launching pad for your future opportunities.

And that is partly the reason why I chose business management consulting.

Number three, remember your unthought knowns.

After just a few months of consulting though, I felt stuck.

I wondered, is this really what the rest of my life will look like?

Is grinding at a job I don't like what it means to make the most of my 20s?

I was scared that doing the right thing was a thing that would make me miserable.

I reflected and discovered what Jay calls unthought-knowns.

This refers to truths and desires we know about ourselves, but suppressed due to fear or uncertainty.

Think about your innermost deep dreams about who you want to be, but that are stifled by the stress of practicality.

To prevent the regret of reaching your 30s and realizing

that you were working in the most valuable years of your life for someone else's dream, take a step back and ask yourself what are your unthought-knowns.

Take action in the direction of the future that you would want.

So for me, consuming different content was really valuable because after I read Millionaire Fastlane, I discovered that creating and entrepreneurship just called to me.

And thus I committed to YouTube.

I did have a lot of internal conflict due to the sunk cost fallacy.

And I did study engineering at Caltech after all.

But I now realize that it's totally okay to change industries.

It's always best to live for yourself.

As long as you're still accumulating that identity capital, you'll be fine.

But how do you even pursue your dreams if you work a busy corporate job and have to pay the bills?

Well, the cool thing is that you can use your job to pay for your dream.

One of the best decisions I made when I was only at 1,000 YouTube subscribers was to outsource my editing.

I saved 10 to 20 hours per week.

And now with AI, I can't imagine how much easier my life would have been.

Number four, take marriage seriously earlier.

You could say that it's luck that I met my now husband in 2020.

And yes, that is part of it.

But I recently realized an important factor that did help us significantly.

And that was

that we both aren't heavy social media consumers in 2025 i

see youtube videos popping up all the time criticizing men

or men criticizing women and talking about how the other side is toxic

and then there are youtube videos analyzing tiktoks that show up

and i watched a few because i was curious

and holy crap the dating scene is already hard

but you guys are making a lot worse okay not you guys like the audience

but like the the the people preaching out there.

And in my humble opinion, and seeing the long-term relationships of my friends, and of course my parents and Sean's parents,

there is truly a lot of misleading information on social media about relationships.

And at the same time, the loneliness epidemic is real, so young people are even more vulnerable to anyone who just yells loudly enough.

Kind of like how I just did.

Statistically, the age of marriage is being pushed later and later, and this is especially hard for women who do want children.

Meg Jay explains in her book, and there are a lot of stories online about women who didn't think marriage was a priority to consider

and then they're going about their careers, time is flying by, and then suddenly they're racing to find a partner.

That could make them at risk for settling for someone.

Biological clock's ticking, right?

She wants to find a husband.

Everything is optimized to like find Mr. Right.

And as a result, she's kind of killed her own personality.

Plus, many completely miss the window to get pregnant in their lifetime.

And that is so sad.

Meg Jay's philosophy is to think ahead and remember that your time is not unlimited.

100

She says that as a therapist, she talks to many different people in their 30s

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and a common theme that these clients express to Jay is that they wish they thought about serious relationships and marriage sooner.

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Plus after age 25, the age of your marriage doesn't determine divorce.

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Whew, 26.

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So overall, don't be afraid of dating to marry sooner.

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And if someone hates how you wanna be committed already, then they're probably not the right person anyway.

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Surprisingly, however, couples who live together before getting married tend to have higher divorce rates.

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This is called the cohabitation effect.

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Boy, was that hard to say.

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Sometimes people stay with each other for convenience or to save rent.

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I live in New York.

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I get it.

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But the issue is that people feel more and more locked in

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and they may neglect to think about whether this person is really right for them.

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I moved in with my now husband, Sean, actually very early on, so I'm not really one to say.

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But I will mention that very early on in our relationship, like in the first few months, we knew that we would get married.

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Jay says it's important to get clear on how committed you are to someone before moving in together.

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You can even test the relationship in other ways, like international travel.

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Six, ask yourself why.

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Time is of the essence.

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So in anything you're spending your time on, ask yourself why.

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Watching TV, why?

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Is this really so I can relax or am I just trying to escape?

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Why am I scrolling so much?

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Am I just trying to avoid the discomfort of learning in the real world?

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Why did I get so upset that my manager gave me negative feedback?

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Why did my partner and I get into a conflict?

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And importantly, what can I control to make things better?

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Number seven, do the math.

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There are three things that you can apply this to.

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So that's finances, health, and your relationships.

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Work backwards from 30 to calculate how much you should be reasonably saving in order to meet your financial goals.

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I'm a big supporter of enjoying your 20s, but do so responsibly.

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About health, time travel in your head to look at yourself in five years.

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How mobile will you really be?

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Will you feel good about your body?

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What kind of body will your current actions create?

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Relationships, if you want kids for sure, then calculate backwards about how many years you need to nurture relationships and so on for marriage and all that stuff.

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Of course, don't map out everything because that is impossible.

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Things will always, always change, but it's important to have an idea instead of absolutely no plan because no plan means you're gonna probably regret it.

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If you fail to prepare, you prepare to fail.

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The other thing you want to calculate to not regret is the proportion of time spent on each area of your life.

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So if you imagine yourself at age 30, would you really want 8% of your life to have been spent doom scrolling?

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Probably not, so adjust your daily time wisely.

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If you would like to learn from examples of people in their 20s living for themselves

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and how they did it despite the struggles, you can listen to my podcast, CEO of Life is on Spotify, Apple Podcasts, and YouTube.

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For example, my friend Megan got laid off twice, but she was amazing and turned her situation into her becoming a full-time content creator.

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And now she lives her best life with freedom.

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I'll leave you with this awesome quote from Meg Jay.

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The future isn't written in the stars.

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There are no guarantees.

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So claim your adulthood. Be intentional.

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Get to work.

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Pick your family.

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Do the math.

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Make your own certainty.

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Don't be defined by what you didn't know or didn't do.

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You are deciding your life right now.

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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B2レベルのスピーキングレッスンは、動画「If you're under 30, please watch this video…」を教材にしています。この動画には、シャドーイング用の文が157文、単語が1947語あります。音声の長さは9:29です。話す速さは速く、1分あたり約205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84%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

動画の中で特に難しい単語15語を、発音と意味つきで紹介します。

単語	発音	意味
calculate 動詞	/ˈkælkjʊleɪt/	計算する
adulthood 名詞		成人であること
criticize 動詞	/ˈkɹɪtɪsaɪz/	批判する, 非難する
tick 名詞	/tɪk/	だに, ごさらぎ
scroll 名詞	/skɹoʊl/	巻物, スクロール
mathematics 名詞	/mæθ(.ə)ˈmæt.ɪks/	数学
accumulate 動詞	/əˈkjuːmjʊˌleɪt/	積む
bestseller 名詞		ベストセラー
blueprint 名詞	/ˈbluːˌpɹɪnt/	青写真
cohabitation 名詞	/koʊhæbɪˈteɪʃən/	同棲
fallacy 名詞	/ˈfæl.ə.si/	いんちき, 欺瞞
nurture 名詞	/ˈnɜːɹ.t͡ʃəɹ/	育成
stifle 動詞	/ˈstaɪf(ə)l/	窒息させる, 抑圧する
subscriber 名詞	/səbˈskɹaɪbɚ/	購読者, 加入者
entrepreneurship 名詞	/ˌɑn.tɹə.pɹəˈnɝ.ʃɪp/	起業

動画に出てくる句動詞

単語	意味
lay off 動詞	解雇する
show up 動詞	現れる

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。

When we're in school, there's a formula to succeed.
Why am I scrolling so much?
How mobile will you really be?
Will you feel good about your body?
What kind of body will your current actions create?

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
現在完了進行形 have/has been + -ing — 以前に始まり今も続いている動作	has been working · have been living · I've been applying
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	wasn't born · are stifled · being pushed
関係詞節 who / which + 節 — 人や物について情報を加える	anyone who just · women who do · women who didn

注意したい発音

話し手はdon't, you're, didn'tなど、短縮形や弱形を33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。

「th」の音: mathematics /mæθ(.ə)ˈmæt.ɪks/, therapist /ˈθɛɹəpɪst/
「sh」と「zh」の音: cohabitation /koʊhæbɪˈteɪʃən/, reassure /ˌɹi.əˈʃʊɹ/, refresher /ɹɪˈfɹɛʃɚ/, specialize /ˈspɛʃəˌlaɪz/, entrepreneurship /ˌɑn.tɹə.pɹəˈnɝ.ʃɪp/
長い単語（アクセントの位置に注意）: fertility /fɝˈtɪləti/, mathematics /mæθ(.ə)ˈmæt.ɪks/, accumulate /əˈkjuːmjʊˌleɪt/, cohabitation /koʊhæbɪˈteɪʃən/, entrepreneurship /ˌɑn.tɹə.pɹəˈnɝ.ʃɪp/

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: scroll /skɹoʊl/, blueprint /ˈbluːˌpɹɪnt/, reel /ˈɹiːl/, stressful /ˈstɹɛsfəl/, reasonably /ˈɹiː.zən.ə.bli/
/v/ — /b/ にならないように、上の歯を下唇に当てる: inevitably /ɪˈnɛvɪtəbli/, convenience /kənˈvinjəns/, conviction /kənˈvɪkʃən/
/f/ — 「フ」ではなく、上の歯と下唇で出す: fertility /fɝˈtɪləti/, fallacy /ˈfæl.ə.si/, refresher /ɹɪˈfɹɛʃɚ/, stifle /ˈstaɪf(ə)l/, discomfort /dɪsˈkʌmfɚt/

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。calculate, adulthood, criticize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: If you're under 30, please watch this video… - 動画で英語スピーキングを学ぶ

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