跟读练习: How to Destroy a Black Hole - 通过视频学习英语口语
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1
There's a big dirty secret about black holes.
2
Contrary to widespread belief, the singularity of a black hole is not really at its center.
3
No, it's in the future of whatever crosses the horizon.
4
Black holes warp the universe so drastically that at the event horizon, space and time switch their roles.
5
Once you cross it, falling towards the center means going towards the future.
6
That's why you can't escape.
7
Stopping your fall and turning back would be just as impossible as stopping time and traveling to the past.
8
So the singularity is actually in your future, not in front of you.
9
And just like you can't see your own future, you won't see the singularity until you hit it.
10
But you also can't hit something that's in your future, only sort of experience it, like you'll experience your next birthday when it happens.
11
Singularities that are in the future are not a problem because we can't see them or interact with them.
12
But a naked singularity would be in front of us for all of us to see.
13
What would we see?
14
Well, the whole point is that it's impossible to know.
15
A singularity is a region of infinite gravity, and gravity is the bending of space-time.
16
At a singularity, the bending is so radical that the fabric of space-time is literally broken.
17
Space and time don't exist anymore.
18
This means that you can't predict anything, since predicting means making a forecast about where and when something will happen.
19
But where and when have lost their meaning.
20
So we have an unpredictable thing with infinite gravity and therefore infinite energy.
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This means that anything could come out of it for no reason, from a pile of bananas to lost socks or a solar system.
22
Predictability, causality and physics as we know it would break down.
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We think that singularities should exist in nature because we can prove
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that under very general conditions gravitational collapse leads to the formation of singularities.
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However, scientists think that nature forbids the formation of naked singularities.
26
Something enforces the creation of an event horizon around them to prevent their insanity from infecting the rest of the universe.
27
Without event horizons, physics may not make sense at all.
28
So although black holes have been portrayed as the ultimate monsters of the universe, they may actually be the heroes that keep us safe from the madness of singularities.
29
So if we do destroy the horizon, we might destroy the fundamental rules of the universe.
30
You know what?
31
Let's not do that.
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本课的词汇与口语要点
这节 C1 级别的口语课以视频“How to Destroy a Black Hole”为素材。 视频中反复出现的词有：singularity, singularities, horizon, universe, hole。 这段视频共有 31 个句子、427 个单词可供跟读。 讲话部分时长为 2:26。 说话人语速自然，每分钟约 175 个词，接近日常对话。 83% 的单词属于英语最常用的 3,000 词，其余的词建议在练习前先学一下。
视频中的重点词汇
视频中最难的 13 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| horizon 名词 | /həˈɹaɪ.zən/ | 地平線 /地平线, 天際 /天际 |
| predict 动词 | /pɹɪˈdɪkt/ | 預言 /预言 |
| causality 名词 | /kɔˈzæl.ɪ.tɪ/ | 因果關係 /因果关系, 因果律 |
| infect 动词 | /ɪnˈfɛkt/ | 傳染 /传染, 感染 |
| sock 名词 | /sɑk/ | 襪子 /袜子 |
| forbid 动词 | /fɚˈbɪd/ | 禁止, 拒絕 /拒绝 |
| unpredictable 形容词 | 不可預知的 /不可预知的 | |
| insanity 名词 | /ɪnˈsænɪti/ | 狂, 瘋病 /疯病 |
| enforce 动词 | /ɪnˈfoɹs/ | 實施 /实施, 執行 /执行 |
| madness 名词 | /ˈmæd.nəs/ | 狂, 瘋病 /疯病 |
| banana 名词 | /bəˈnænə/ | щёнҗё, баҗё |
| interact 动词 | /ɪn.təˈɹækt/ | 互動 /互动 |
| forecast 名词 | /ˈfɔːkɑːst/ | 預報 /预报, 預測 /预测 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| break down 动词 | 壞了 /坏了, 出故障 |
需要注意的发音
说话人用了 8 次缩略和弱读形式，例如 can't, don't, won't。请按听到的简短形式来说。
- 长单词——注意重音位置: singularity /ˌsɪŋɡjəˈlæɹətɪ/, causality /kɔˈzæl.ɪ.tɪ/, gravitational /ˌɡɹævɪˈteɪʃənəl/, predictability /pɹəˌdɪktəˈbɪlɪti/, insanity /ɪnˈsænɪti/
中文母语者容易读错的音：
- 词尾辅音 — 要读清楚，后面不要加元音: predict /pɹɪˈdɪkt/, infect /ɪnˈfɛkt/, sock /sɑk/, warp /ˈwɔːp/, forbid /fɚˈbɪd/
- /r/ 和 /l/ 的区别: singularity /ˌsɪŋɡjəˈlæɹətɪ/, gravitational /ˌɡɹævɪˈteɪʃənəl/, predictability /pɹəˌdɪktəˈbɪlɪti/
- /æ/ — 嘴张大，不要读成 /e/: singularity /ˌsɪŋɡjəˈlæɹətɪ/, causality /kɔˈzæl.ɪ.tɪ/, gravitational /ˌɡɹævɪˈteɪʃənəl/, insanity /ɪnˈsænɪti/, madness /ˈmæd.nəs/
如何用这段视频练习
- 先完整听一遍视频，不要开口，记下不认识的单词。
- 先用 0.75 倍速逐句跟读，熟练之后再回到正常速度。
- 录下自己的声音并与原声对比，特别注意 horizon, predict, causality 这类单词。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。