跟读练习: Scuba Diving Risks - Decompression Sickness - 通过视频学习英语口语
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29 句
如果句子过短或过长，请点击 Edit 进行调整。
1
Decompression sickness occurred for the first time when workers surfaced from their pressurised workspace,
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the casson, without step -by -step pressure equalisation.
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The sickness can be caused by several different factors, including the dive time, the depth, and the surfacing method.
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Decompression sickness can be caused by diving too long or by surfacing too quickly, unless Yes, several life -saving rules are observed.
5
With increasing ambient pressure, the nitrogen contained in the air you breathe dissolves in your blood.
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In order to keep the nitrogen dissolved when resurfacing, when the ambient pressure decreases, it's vital not to ascend too quickly.
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This is why it's very important to achieve a controlled ascent of not more than 10 metres per minute.
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If the pressure decreases too quickly, nitrogen bubbles form in blood and body tissue as not enough can be breathed out.
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The bubbles in the blood are similar to champagne bubbles that form after you open the bottle.
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This is also a pressure drop.
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Even with light decompression sickness, the bubbles can cause itching skin.
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In fact, this
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This is usually the first sign of decompression sickness.
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These creeps can also be the starting signs of a serious illness.
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Obese divers may feel stomach pains because the nitrogen is carried off more slowly from fatty tissue,
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which has less effective blood circulation than muscle tissue.
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This is why fat is considered slow tissue.
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Heart and skeletal muscles are examples of fast tissues.
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Sometimes a diver will suffer from the bends.
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These manifest themselves in the form of aching muscles,
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joints and bones and are caused by nitrogen bubbles gathering in the afflicted areas.
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Temporary paralysis can occur.
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The casualty may feel such strong pain that he writhes in agony.
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If the bubbles form in the brain, or in the central nervous system, certain nerves may become paralysed or even paraplegia can occur.
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In the brain, the bubbles can cause hallucinations or blindness, and sometimes they lead to death.
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If decompression times are disregarded, gas bubbles can form in the bloodstream.
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If bubbles gather in the lung, they can cause acute respiratory depression,
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coughing and anxiety and possibly also cardiac arrest.
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Gas bubbles cutting off the coronary arteries can also lead to a heart attack.
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本课的词汇与口语要点
这节口语课以视频“Scuba Diving Risks - Decompression Sickness”为素材。 视频中反复出现的词有：bubbles, decompression, nitrogen, sickness, tissue。 这段视频共有 29 个句子、372 个单词可供跟读。 讲话部分时长为 2:58。 说话人语速平稳，每分钟约 125 个词，很适合跟读。 只有 72% 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 15 个值得学习的单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| bubble 名词 | /ˈbʌbəl/ | 泡, 氣泡 /气泡 |
| tissue 名词 | /ˈtɪʃ.(j)u/ | 纸巾 |
| sickness 名词 | /ˈsɪknɪs/ | 疾病 |
| nitrogen 名词 | /ˈnaɪ.tɹə.d͡ʒən/ | 氮, 氮氣 /氮气 |
| occur 动词 | /əˈkɜː/ | 發生 /发生 |
| muscle 名词 | /ˈmʌs.əl/ | 肌肉, 筋肉 |
| breathe 动词 | /bɹiːð/ | 呼吸, 吸 |
| decrease 动词 | /dɪˈkɹiːs/ | 減少 /减少, 下降 |
| dive 动词 | /daɪv/ | 潛水 /潜水 |
| ambient 形容词 | /ˈæm.bi.ənt/ | 氛圍 /氛围 |
| temporary 形容词 | /ˈtɛmp(əˌɹ)ɛɹi/ | 暫時 /暂时 |
| bone 名词 | /boʊn/ | гўдў, гўдўзы |
| anxiety 名词 | /æŋˈzaɪ.əti/ | 焦慮 /焦虑, 担心 |
| suffer 动词 | /ˈsʌfɚ/ | 受苦, 遭受 |
| worker 名词 | /ˈwɝ.kɚ/ | 工人, 工作者 |
视频中出现的短语动词
| 单词 | 发音 | 释义 |
|---|---|---|
| cut off 动词 | /ˌkʌt ˈɔf/ [ˌkɐɾ ˈɔf] | 切下, 割下 |
需要注意的发音
- “th” 音: breathe /bɹiːð/, gather /ˈɡæðɚ/, writhe /ɹaɪð/
- “sh” 和 “zh” 音: tissue /ˈtɪʃ.(j)u/, circulation /ˌsɝkjʊˈleɪʃən/, champagne /ʃæmˈpeɪn/, casualty /ˈkæʒu.əlti/, decompression /ˌdiːkəmˈpɹɛʃən/
- 长单词——注意重音位置: temporary /ˈtɛmp(əˌɹ)ɛɹi/, anxiety /æŋˈzaɪ.əti/, circulation /ˌsɝkjʊˈleɪʃən/, respiratory /ɹɪˈspɪ.ɹət.ə.ɹi/, casualty /ˈkæʒu.əlti/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: dive /daɪv/, vital /ˈvaɪtəl/, nerve /nɝv/, observe /əbˈzɜːv/, dissolve /dɪˈzɑlv/
- 词尾辅音 — 要读清楚，后面不要加元音: sickness /ˈsɪknɪs/, decrease /dɪˈkɹiːs/, dive /daɪv/, ambient /ˈæm.bi.ənt/, stomach /ˈstʌmək/
- /r/ 和 /l/ 的区别: bloodstream /ˈblʌd.stɹɪim/, paralysis /pəˈɹæləsəs/
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。
- 用正常速度逐句跟读，每句重复到你的节奏与说话人一致为止。
- 录下自己的声音并与原声对比，特别注意 bubble, tissue, sickness 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。