シャドーイング練習: TOEFL Listening Practice | Lecture | Dome Structures - 動画で英語スピーキングを学ぶ

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1
In 2005, Hurricane Katrina devastated the city of New Orleans, destroying over a million buildings.
2
In 2008, a gigantic earthquake measuring 8 .0 on the Richter scale struck Sichuan in China,
3
leaving close to 5 million people homeless.
4
But had the structures in either location been built differently, much of the damage might have been prevented, Jim Carter reports.
5
According to a United Nations report, the number of severe natural disasters has been steadily increasing, along with the number of people affected by them.
6
Growing urbanization worldwide has brought with it an urgent demand for quickly built,
7
affordable housing, and building standards have suffered as a result.
8
But poor construction is only one of the reasons that so many homes are lost in such disasters.
9
Apparently, the square or rectangular shape of most buildings is far from ideal in areas prone to earthquakes, hurricanes, or tornadoes.
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Here to tell us why is architect Francis Newberry.
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The square and the rectangle are in no way as stable as the dome in terms of construction.
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In fact, if more structures in earthquake zones were dome -shaped, billions of dollars could be saved, not to mention countless lives.
13
And this has been borne out by numerous examples over time.
14
For centuries, indigenous peoples in Mongolia have lived in yurts, dome -shaped structures which can withstand the earthquakes,
15
severe blizzards, and dust storms of Central Asia.
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Perhaps a more familiar example is the Pantheon in Rome,
17
which was built around 126 AD in one of the most seismically active regions of Europe.
18
It has proved remarkably resilient during the earthquakes and tremors that have rocked the region for centuries, making it the best -preserved building from ancient Rome.
19
Yet, despite such examples, it was only in the second half of the 20th century that dome -shaped homes,
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schools, and even churches began to appear sporadically in America.
21
especially in the infamous
22
Tornado Alley area of the central
23
United States, where more and more inhabitants are switching to dome architecture for increased security.
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You mentioned that a dome can withstand extreme weather conditions and even earthquakes.
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But what is it about this particular shape that makes it inherently stable?
26
Well, one factor that makes it especially stable compared to a conventional building is that any pressure, such as ground movement from an earthquake,
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is absorbed equally by all points of the structure.
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Another factor is the physical geometry of a building, which determines how resistant it is to high winds.
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Picture a dome.
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It has a perfectly curved surface, so wind flows smoothly around it rather than getting caught on angled walls
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and corners as it does on a square building, for example.
32
Consequently, domes have been built to house and protect radar towers in Antarctica, where winds can reach speeds of over 185 miles an hour.
33
And the same things that make a dome safe also make it cost -effective in terms of building.
34
A sphere has less surface area than a rectangle, which reduces material and construction costs considerably.
35
Furthermore, all that freely circulating air in the open space interior makes heating and cooling an easier proposition, requiring less fuel.
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Thus, domes are more economical and better for the environment, too.
37
So it's virtually indestructible, cost -effective, and eco -friendly.
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With benefits like these, it's surprising that the dome is still not the prototypical housing structure, especially in areas of extreme weather.
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But as energy costs soar and natural disasters begin to occur with greater frequency, the dome home may yet become a familiar sight.
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Number 1.
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What has contributed to the large numbers of homeless people following natural disasters?
42
Number two.
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Why does Frances Newberry mention structures called yurts?
44
Number three.
45
Where are domes being built to protect local residents?
46
Number 4.
47
What is one reason for the dome's stability?
48
Number 5.
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What could cause an increase in the construction of domes?
50
Number one, what has contributed to the large numbers of homeless people following natural disasters?
51
Growing urbanization worldwide has brought with it an urgent demand for quickly built,
52
affordable housing, and building standards have suffered as a result.
53
But poor construction is only one of the reasons that so many homes are lost in such disasters.
54
Number 2.
55
Why does Francis Newberry mention structures called yurts?
56
For centuries, indigenous peoples in Mongolia have lived in yurts, dome -shaped structures which can withstand the earthquakes,
57
severe blizzards, and dust storms of Central Asia.
58
Number 3.
59
Where are domes being built to protect local residents?
60
Yet, despite such examples, it was only in the second half of the 20th century that dome -shaped homes,
61
schools, and even churches began to appear sporadically in America, especially in the infamous
62
Tornado Alley area of the central
63
United States, where more and more inhabitants are switching to dome architecture for increased security.
64
number four what is one reason for the dome's stability
65
well one factor that makes it especially stable compared to a conventional building is
66
that any pressure such as ground movement from an earthquake is absorbed equally by all points of the structure and the same things
67
that make a dome safe number five also make
68
it cost effective in terms of A sphere has less surface area than a rectangle, which reduces material and construction costs considerably.

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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「TOEFL Listening Practice」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：dome, earthquake, structure, built, disasters。 この動画には、シャドーイング用の文が68文、単語が873語あります。 音声の長さは7:53です。 話す速さは1分あたり約111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76%だけなので、語彙は難しめです。

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15語を、発音と意味つきで紹介します。

単語発音意味
dome 名詞/dəʊm/円屋根, 円蓋
earthquake 名詞/ˈɝθkweɪk/地震
disaster 名詞/dɪˈzɑːs.təː/災害, 天災
stable 名詞/ˈsteɪ.bəl/馬小屋, 厩舎
tornado 名詞/tɔɹˈneɪ.doʊ/竜巻, トルネード
withstand 動詞/wɪðˈstænd/抵抗する, 反抗する
compare 動詞/kəmˈpɛɚ/比べる, 比較する
suffer 動詞/ˈsʌfɚ/被る
architecture 名詞/ˈɑː.kɪˌtɛk.t͡ʃə/建築, 建築学
dust 名詞/dʌst/埃, ほこり
equally 副詞/ˈiːkwəli/等しく, 平等に
resident 名詞/ˈɹɛzɪdənt/居住者, 住民
contribute 動詞/kənˈtɹɪb.jut/貢献する
stability 名詞/stəˈbɪlɪti/安定性, 安定
affordable 形容詞/əˈfɔɹ.də.bəl/価格が手頃

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has been · has brought · have suffered
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 built · are lost · could be saved
関係詞節 who / which + 節 — 人や物について情報を加えるstructures which can

注意したい発音

  • 「th」の音: earthquake /ˈɝθkweɪk/, withstand /wɪðˈstænd/, furthermore /ˈfɜː(ɹ).ðə(ɹ)ˌmɔː(ɹ)/, smoothly /ˈsmuːðli/
  • 「sh」と「zh」の音: conventional /kənˈvɛnʃənl̩/, proposition /ˌpɹɑpəˈzɪʃən/
  • 長い単語（アクセントの位置に注意）: architecture /ˈɑː.kɪˌtɛk.t͡ʃə/, stability /stəˈbɪlɪti/, affordable /əˈfɔɹ.də.bəl/, indigenous /ɪnˈdɪd͡ʒənəs/, considerably /kənˈsɪdəɹəbli/

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: affordable /əˈfɔɹ.də.bəl/, considerably /kənˈsɪdəɹəbli/, differently /ˈdɪf.ə.ɹənt.li/, freely /ˈfɹili/, remarkably /ɹɪˈmɑɹkəbli/
  • /v/ — /b/ にならないように、上の歯を下唇に当てる: conventional /kənˈvɛnʃənl̩/, virtually /ˈvɚ.t͡ʃə.wə.li/, preserve /pɹəˈzɝv/, curve /kɚv/, devastated /ˈdɛv.əˌsteɪ.təd/
  • /f/ — 「フ」ではなく、上の歯と下唇で出す: suffer /ˈsʌfɚ/, affordable /əˈfɔɹ.də.bəl/, sphere /sfɪɚ/, infamous /ˈɪn.fə.məs/, frequency /ˈfɹiːkwənsi/

この動画での練習方法

  1. 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。
  2. 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。
  3. 自分の声を録音して元の音声と比べます。dome, earthquake, disaster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 →