跟读练习: Why Ebola Keeps Coming Back - 通过视频学习英语口语
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1
Ebola is back.
2
What makes it so hard to stop?
3
Once Ebola enters your body through contact with infectious bodily fluids, immune cells rush to destroy it.
4
But the virus infects these cells and uses them to spread,
5
killing some and triggering others to produce a massive flood of chemical signals that causes extreme inflammation and internal bleeding.
6
Ebola also attacks the cells that make clotting proteins so that the bleeding becomes hard to stop.
7
Organs lose oxygen and begin to fail.
8
Around half of infected patients die, and in some outbreaks, the death rate has reached 90%.
9
While many have been contained, Ebola keeps returning.
10
Especially in high-risk countries like the DRC, conflict has displaced millions into crowded camps where the virus spreads fast.
11
Constant cross-border movement makes things worse, and with a health system in ruins, an infectious disease can thrive.
12
There are vaccines for some strains, but not for others, so many patients with Ebola need round-the-clock care to stay alive.
13
Containing the current outbreak will cost around $518 million, and this investment can also help stop the next one before it starts.
14
So, it's money well spent.
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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“Why Ebola Keeps Coming Back”为素材。 这段视频共有 14 个句子、193 个单词可供跟读。 讲话部分时长为 1:11。 说话人语速自然，每分钟约 163 个词，接近日常对话。 只有 78% 的单词属于英语最常用的 3,000 词，词汇难度较高。
视频中的重点词汇
视频中最难的 15 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| virus 名词 | /ˈvaɪ.ɹəs/ | 病毒 |
| outbreak 名词 | /ˈaʊtbɹeɪk/ | 爆發 /爆发 |
| bleed 动词 | /ˈbliːd/ | 出血, 流血 |
| rush 动词 | /ɹʌʃ/ | 急速去, 急速做 |
| flood 名词 | /flʌd/ | 洪水, 洪災 /洪灾 |
| ruin 名词 | /ˈɹuː.ɪn/ | 遺址 /遗址, 廢墟 /废墟 |
| oxygen 名词 | /ˈɑksɪd͡ʒən/ | 氧 |
| trigger 名词 | /ˈtɹɪɡɚ/ | 扳機 /扳机 |
| fluid 名词 | /ˈflu.ɪd/ | 流體 /流体, 液體 /液体 |
| strain 名词 | /stɹeɪn/ | 株 |
| organ 名词 | /ˈɔːɡən/ | 器官 |
| vaccine 名词 | /vækˈsin/ | 疫苗 |
| bodily 形容词 | /ˈbɑdɪli/ | 身體的 /身体的 |
| inflammation 名词 | /ɪnfləˈmeɪ̯ʃən/ | 炎症, 發炎 /发炎 |
| thrive 动词 | /θɹajv/ | 繁榮 /繁荣 |
视频中的语法
说话人最常用的结构，并附上视频中的原话：
| 结构 | 视频中的用法 |
|---|---|
| 现在完成时 have/has + 过去分词 — 过去发生但与现在仍有关联的事 | has reached · have been contained · has displaced |
| 被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的 | have been contained |
需要注意的发音
- “sh” 和 “zh” 音: infectious /ɪnˈfɛk.ʃəs/, rush /ɹʌʃ/, inflammation /ɪnfləˈmeɪ̯ʃən/
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 virus, outbreak, bleed 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。