跟读练习: Separation of mixtures: separating funnel - 通过视频学习英语口语

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This is a separating funnel.
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We can use it to separate liquids where they have a very distinct
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separation cut off there so in this case i have oil
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and water oil and water are immiscible that means they don't mix
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if you shook this up they would separate back out water below
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because it's more dense and the oil on top
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because it's less dense so
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because we can very easily see difference of color we can
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use a separating funnel to separate them we just have a tap down here we can turn the tap
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and let the liquids drain out when this mark where the distinction between the oil
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and water when that reaches the tap we simply turn the tap off
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and we'll be left with the oil still in the separating funnel
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and water down in the beaker underneath so let's just do
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that quickly we need to remove the lid first of all
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if something is going to leave the separating funnel some air
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needs to be able to go in to take its place
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so we need to take the lid off and then we open the tap and we just watch
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and when that yellow reaches the tap we will close the tap the water is dripping out
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we close it and we still have our oil in the separating funnel and the water down on the beaker
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So that is a separating funnel.

本课的词汇与口语要点

这段视频共有 20 个句子、242 个单词可供跟读。 讲话部分时长为 1:35。 说话人语速自然,每分钟约 153 个词,接近日常对话。 82% 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 9 个值得学习的单词,附发音和释义:

单词发音释义
liquid 名词/ˈlɪk.wɪd/液體 /液体, 液態 /液态
dense 形容词/ˈdɛns/密, 稠密
shake 动词/ˈʃeɪk/搖 /摇
distinct 形容词/dɪˈstɪŋkt/明顯 /明显, 清晰
separation 名词/ˌsɛp.əˈɹeɪ.ʃən/分割, 分離 /分离
distinction 名词/dɪˈstɪŋkʃən/分別 /分别
drip 动词/ˈdɹɪp/滴, 滴下
funnel 名词/ˈfʌnəl/漏斗
beaker 名词/ˈbiːkɚ/燒杯 /烧杯

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

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
义务:must / have to / need to 表示某事是必要的need to remove · needs to be · need to take
“will” 表将来 will + 动词 — 决定、承诺或预测we'll be · will close

需要注意的发音

  • “sh” 和 “zh” 音: shake /ˈʃeɪk/, separation /ˌsɛp.əˈɹeɪ.ʃən/, distinction /dɪˈstɪŋkʃən/

如何用这段视频练习

  1. 先完整听一遍视频,不要开口,记下不认识的单词。
  2. 先用 0.75 倍速逐句跟读,熟练之后再回到正常速度。
  3. 录下自己的声音并与原声对比,特别注意 liquid, dense, shake 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。

影子跟读法: 阅读完整分步指南 →