シャドーイング練習: National Geographic Reading Explorer 2 Unit 6 Ocean Megabuilders - 動画で英語スピーキングを学ぶ
レッスンを作成中...
1
The bright colors of coral reefs can be seen in warm seas all around the planet.
2
But they are not just beautiful, they are also hugely important to our oceans.
3
1. Corals are actually animals.
4
Though they may look like colorful plants, coral are in fact made up of tiny animals called polyps.
5
Polyps can range from the size of a pinhead to a bit larger than a basketball.
6
2. Corals are mega builders.
7
Each polyp builds itself a skeleton out of limestone.
8
These skeletons join together to form large colonies of hard corals.
9
As polyp colonies grow over hundreds and thousands of years.
10
They join with other colonies and become reefs that can stretch over hundreds of kilometers.
11
The largest coral reef is Australia's Great Barrier Reef.
12
It began growing about 20,000 years ago.
13
Three, coral reefs are some of the most diverse ecosystems on Earth.
14
Though they cover less than 1% of the ocean floor, coral reefs are home to 25% of all sea creatures.
15
Up to 2 million species live in coral reefs around the world.
16
4. Coral provide a window to the past.
17
As coral grow over thousands or millions of years, their limestone skeletons form layers.
18
These are similar to tree rings.
19
They vary in thickness based on ocean conditions at the time.
20
Scientists can study these layers to learn what the Earth's climate may have been like in the distant past.
21
But what about the future?
22
Unfortunately, climate change is dangerous for Earth's coral reefs, the animals that live there,
23
and the 500 million people around the world who depend on reef fish for food.
24
Unless we can slow down climate change, scientists warn that our oceans could lose many of their colorful reefs by the end of the 21st century.
📺 同じチャンネル
A21
National Geographic Reading Explorer 1 Unit 10 City in the Clouds
Daily ConversationUniversity Students
B14
National Geographic Reading Explorer 1 Unit 3 The Mozart Effect
Daily ConversationHigh School StudentsUniversity Students
B12
National Geographic Reading Explorer 1 Unit 11 Our Plastic World
Daily ConversationHigh School StudentsUniversity Students
B13
National Geographic Reading Explorer 1 Unit 4 The Red Planet
IELTS PrepTOEFL PrepHigh School Students
B113
National Geographic Reading Explorer 1 Unit 2 Exploring Laponia
Daily ConversationHigh School StudentsUniversity Students
B11
National Geographic Reading Explorer 1 Unit 9 Snake Catchers
IELTS PrepTOEFL PrepHigh School Students
B137
National Geographic Reading Explorer 1 Unit 5 New York Skyscraper
TOEFL PrepCambridge Exam PrepHigh School Students
B12
National Geographic Reading Explorer 2 Unit 3 Walking with Giants
Cambridge Exam PrepHigh School StudentsUniversity Students
B124
National Geographic Reading Explorer 2 Unit 1 Space Food
Daily ConversationHigh School StudentsUniversity Students
B12
National Geographic Reading Explorer 1 Unit 6 Bioblitz
Daily ConversationHigh School StudentsUniversity Students
B13
National Geographic Reading Explorer 1 Unit 8 Fairy tale Castle
Cambridge Exam PrepHigh School StudentsUniversity Students
C14
National Geographic Reading Explorer 2 Unit 2 The Lion's Roar
IELTS PrepTOEFL PrepUniversity Students
B2National Geographic Reading Explorer 2 Unit 12 Sea Caves
TOEFL PrepUniversity Students
B1National Geographic Reading Explorer 2 Unit 11 Smile Trial
Daily ConversationHigh School StudentsUniversity Students
B1National Geographic Reading Explorer 2 Unit 10 The Sled Dogs of Greenland
Daily ConversationHigh School StudentsUniversity Students
B1National Geographic Reading Explorer 2 Unit 9 The Global Village
IELTS PrepTOEFL PrepCambridge Exam Prep
B2National Geographic Reading Explorer 2 Unit 8 The Legend of Marco Polo
Cambridge Exam PrepHigh School StudentsUniversity Students
B1National Geographic Reading Explorer 2 Unit 7 Flowers from Ecuador
Business EnglishDaily ConversationHigh School Students
B2National Geographic Reading Explorer 2 Unit 5 Digging into the Past
Daily ConversationHigh School StudentsUniversity Students
B1National Geographic Reading Explorer 2 Unit 4 Dragon Boat Festival
Daily ConversationHigh School StudentsUniversity Students
✨ おすすめ動画
B24
35 文
RE2 Unit 6A
Daily ConversationHigh School Students
B2254
20 文
Grade 12 Reading Unit 2
Cambridge Exam PrepHigh School StudentsUniversity Students
B22
64 文
IELTS Cambridge 10 test 3 section 2
IELTS PrepCambridge Exam PrepUniversity Students
B24
37 文
RE2 Unit 5B
Cambridge Exam PrepUniversity Students
B113
40 文
READING EXPLORER 1 UNIT 1B MASTER OF DISGUISE
TOEFL PrepCambridge Exam PrepHigh School Students
B21
135 文
The Deepest Point in the World: Crash Course Geology #12
Cambridge Exam PrepHigh School StudentsUniversity Students
B14
30 文
READING EXPLORER 1 UNIT 7A THE TRUTH ABOUT DINOSAURS
Cambridge Exam PrepHigh School StudentsUniversity Students
B23
26 文
4 Subject link 6 C14
IELTS PrepCambridge Exam PrepUniversity Students
C11
59 文
Cambridge Ielts 16 Reading test 2 Passage 2
IELTS PrepTOEFL PrepCambridge Exam Prep
B22
38 文
Coral Bleaching: A Marine Biologist Explains
American AccentBritish AccentIELTS PrepUniversity StudentsWorking Adults
B21
54 文
Cambridge IELTS 21 PART 4 TEST 2 #voduyquynh #ielts21 #ielts21test2part4
IELTS PrepUniversity Students
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「National Geographic Reading Explorer 2 Unit 6 Ocean Megabuilders」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：coral, reef, polyp, ocean, skeleton。 この動画には、シャドーイング用の文が24文、単語が289語あります。 音声の長さは2:29です。 話す速さは1分あたり約116語で安定しており、シャドーイングしやすいペースです。 英語の頻出3,000語に含まれる単語は78%だけなので、語彙は難しめです。
この動画の重要語彙
動画の中で特に難しい単語11語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| coral 名詞 | /ˈkɔɹəl/ | サンゴ, 珊瑚 |
| reef 名詞 | /ɹiːf/ | 礁, 暗礁 |
| polyp 名詞 | /ˈpɑlɪp/ | ポリープ, ポリプ |
| skeleton 名詞 | /ˈskɛlətən/ | 骨格, 骸骨 |
| limestone 名詞 | /ˈlaɪmˌstoʊn/ | 石灰岩 |
| colorful 形容詞 | /ˈkʌl.əɹ.fl̩/ | カラフル |
| thickness 名詞 | /ˈθɪknəs/ | 厚み |
| ecosystem 名詞 | /ˈikoʊˌsɪstəm/ | 生態系 |
| builder 名詞 | /ˈbɪl.dəɹ/ | 建設者 |
| warn 動詞 | /woɹn/ | 警告する, 言い聞かせる |
| depend 動詞 | /dɪˈpɛnd/ | 依存する |
動画に出てくる句動詞
| 単語 | 意味 |
|---|---|
| slow down 動詞 | 遅らせる |
注意したい発音
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: coral /ˈkɔɹəl/, colorful /ˈkʌl.əɹ.fl̩/, builder /ˈbɪl.dəɹ/
- /f/ — 「フ」ではなく、上の歯と下唇で出す: reef /ɹiːf/, colorful /ˈkʌl.əɹ.fl̩/
- 子音の連続 — 間に母音を入れない: skeleton /ˈskɛlətən/, limestone /ˈlaɪmˌstoʊn/, colorful /ˈkʌl.əɹ.fl̩/, hugely /ˈhjuːd͡ʒli/, warn /woɹn/
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。
- 通常の速度で一文ずつシャドーイングし、話し手のリズムに合うまで繰り返します。
- 自分の声を録音して元の音声と比べます。coral, reef, polyp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。