シャドーイング練習: Astronaut Experiment: Crash Course Kids #32.2 - 動画で英語スピーキングを学ぶ
レッスンを作成中...
1
Seeing is believing, right?
2
That's what people say, and that's why some things can be kind of hard to understand.
3
Things can look a certain way, but sometimes there's a lot more going on than what your eyes can show you.
4
Like last time we learned that all objects, no matter how massive or heavy they are, fall at the same speed on Earth.
5
But objects can seem to fall at different speeds because of a little something called air resistance, the friction between a moving object and air.
6
So if I drop a hammer and a feather from the same height at the same time, the hammer is going to hit the ground before the feather.
7
Now, that's great and all, but do we know that air resistance is what affects how fast things fall here on Earth?
8
To figure this out, let's start by going back to our old friend, Commander Dave Scott.
9
He is the astronaut who dropped the feather and the hammer on the moon back in 1971.
10
And when he dropped them both at the same time, they reached the ground, or at least, the surface of the moon, at the same time, even though the hammer,
11
obviously, had a lot more mass than the feather.
12
So why did Commander Scott get different results from his experiment,
13
whereas if I did, the hammer would hit the ground first? has almost none.
14
So as the feather falls through the air on Earth, its flat fluffy shape makes it run into a lot more air resistance than the hammer does.
15
In other words, on both Earth and the moon, it's not a difference in gravity that causes the hammer to hit the ground before the feather, it's a difference in air resistance.
16
But in order to prove it, we have to do an experiment, like Commander Scott's, but do it on Earth.
17
This looks like a job for Cartoon Sabrina.
18
For this experiment, she's going to need a ball, a little parachute, and a spacesuit.
19
First, let's watch as Mini -Me climbs up a ladder and drops a ball.
20
We'll see how long it takes to hit the ground and write down the data.
21
Now let's take the same ball and attach a little parachute to it.
22
We'll drop it again from the ladder
23
and we see it takes longer for the ball with the parachute to hit the ground.
24
Why?
25
Because there's more friction between the ball -parachute combo and the air than just the ball alone.
26
More friction means more air resistance, and more air resistance means a longer time to reach the ground.
27
That adds up, right?
28
But if we're going to do something like Commander Scott did on the moon, we have to ask: what would happen if there were no atmosphere?
29
For this part of the experiment, we'll need to create a vacuum, an area where there is no air.
30
So we'll repeat the experiment in a large, airtight room and pump out all of the air, and in you go, Cartoon Sabrina.
31
What do you think will happen when Cartoon Me drops the same two things, the ball with the parachute and just the ball, in a room with no air?
32
It makes sense that no air means no air resistance, right?
33
Let's see.
34
First, Cartoon Me drops the ball from the ladder again, and we record the time.
35
And then see what happens when we attach the ball to the parachute.
36
Well, now the parachute doesn't make much of a difference in how long it takes for the ball to hit the ground.
37
In fact, the parachute doesn't even open.
38
That's because in a vacuum there is no air.
39
No air means no air resistance, and when we take away air resistance, we take away the force that slows down the object that's falling,
40
and that means objects dropped from the same height will hit the ground at the same time.
41
Scott did on the moon.
42
Thanks little me.
43
So, air resistance, or the friction between a moving object and the air, has a huge effect on how fast things fall on Earth.
44
We can support this argument with the evidence we got from our investigation.
45
When it comes to objects falling on Earth, it's the resistance that makes the difference.
46
I may not have made it to the moon myself yet, but at least Cartoon Me has managed to recreate a famous astronaut experiment.
47
Oh
📺 同じチャンネル
A22
Down to Earth: Crash Course Kids #4.2
KidsTeensDaily Conversation
A21
The Engineering Process: Crash Course Kids #12.2
KidsTeensDaily Conversation
A22
Climate Change: Crash Course Kids #41.2
KidsTeensDaily Conversation
A21
Here Comes the Sun: Crash Course Kids #5.1
KidsTeensDaily Conversation
A24
Defining a Problem: Crash Course Kids #18.1
KidsTeensDaily Conversation
A23
Danger! Falling Objects: Crash Course Kids #32.1
KidsTeensDaily Conversation
A24
Over (to) The Moon: Crash Course Kids #13.2
KidsTeensDaily Conversation
A26
Resources: Welcome to the Neighborhood - Crash Course Kids #2.1
KidsTeensDaily Conversation
B13
Defining Gravity: Crash Course Kids #4.1
Kids
A22
The Great Escape: Crash Course Kids #13.1
KidsTeensDaily Conversation
✨ おすすめ動画
A21
51 文
Space
KidsTeensDaily Conversation
A21
41 文
Science Fair: Gravity and Free Fall
KidsTeensDaily Conversation
A21
157 文
Space Goofs - Back to school Blues (S2E37) Full Episode in HD
KidsTeensDaily Conversation
A25
55 文
What if You Landed on Kepler-22b? | Exploring a Mysterious Alien Planet | The Dr. Binocs Show
KidsTeensDaily Conversation
A23
31 文
unit 6 grade 6 spelling #animation
KidsTeensDaily Conversation
A21
133 文
🏢 THE BIG EARTHQUAKE! Trapped in a Skyscraper | Slow English Story | A1/A2 English
KidsTeensDaily Conversation
A230 文
Academy Stars 4 - Unit 4 Lesson 2
KidsTeensDaily Conversation
A2295 文
The best English 2 . Learn to speak English.
KidsTeensDaily Conversation
A21
699 文
Lumi Hid in Kavin’s Backpack..Then the Whole Class Started Floating! 😱👽| Easy English Listening (A2)
KidsTeensDaily Conversation
A26
58 文
What If The Moon Split In Half? | Moonquake | The Dr Binocs Show | Peekaboo Kidz
KidsTeensDaily Conversation
文脈と背景
このビデオでは、空気抵抗と物体が落下する速度の関係について探ります。講演者は、アポロ15号の宇宙飛行士デイブ・スコットが月面で行った実験を通じて、同じ高さから落とされた羽毛とハンマーが同時に地面に到達する理由を解説します。地球上では、空気抵抗がどのように物体の落下速度を変化させるかを示し、実験を通じて理論を証明します。
日常コミュニケーションのためのトップ5フレーズ
- 「見ることは信じることです。」 - 物事の理解には視覚が重要というメッセージ。
- 「空気抵抗が物体の落下速度に影響を与えます。」 - 科学的な実験の結果を説明する際に使用。
- 「今回は実験を通じて確認します。」 - 実際に行動することの重要性を強調。
- 「真空の中では空気抵抗が存在しません。」 - 環境による影響を考える際に便利なフレーズ。
- 「同じ高さから落とされた物体は、同時に地面に到達します。」 - 落下の法則を説明する際に役立つ表現。
ステップバイステップシャドーイングガイド
このビデオの内容は少し難しいかもしれませんが、以下の手順を参考にして、英語シャドーイングの練習を進めましょう。
- ビデオを数回観る：最初は内容を理解することが大切です。背景情報を把握しましょう。
- 一文ずつリピート：講演者が話すフレーズを模倣して、発音とリズムを感じることが必要です。例えば、「空気抵抗が物体の落下速度に影響を与えます。」を繰り返してみましょう。
- 録音して自己評価：自分の声を録音して、実際の発音やスピードをチェックします。shadow speechを意識して、発音を改善しましょう。
- フィードバックをもらう：信頼できる友人や教師に聞いてもらい、改善点を教えてもらいましょう。
- 日常生活に取り入れる：学んだフレーズを日常会話で積極的に使用し、英語の発音を良くする練習を続けます。
このプロセスを通じて、あなたの英語力は確実に向上するでしょう。shadowspeaksを参考にしながら、自信を持ってスピーキング練習を続けてください。
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 |
|---|---|
| 「will」の未来表現 will + 動詞 — その場の決定、約束、予測 | We'll see · We'll drop · we'll need |
| 「going to」の未来表現 be going to + 動詞 — 予定や、起こりそうだと分かること | is going to hit · she's going to need · we're going to do |
| 義務：must / have to / need to 何かが必要であることを伝える | have to do · have to ask · need to create |
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。