跟读练习: Touchscreens – How Do They Work? - 通过视频学习英语口语
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10 句
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Touchscreens, how do they work?
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Fine conductive layers of horizontal and vertical threads run through the glass of the display, producing an electric field at each intersection of wires.
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When a fingertip approaches the display, it distorts the electrical fields of the intersections near the point of touch.
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Measurements of the edges of the screen locate the exact position on this invisible grid,
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and the software acts accordingly by doing whatever we wanted to do.
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In that way, a touchscreen can act like thousands of buttons that detect multiple touches and movements along the screen.
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Although touchscreens changed our lives a lot in the 21st century, the technology for touchscreens had already been invented in the 1960s.
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It took a few more decades of research and optimization,
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a video game console and of course the smartphone to finally bring it into almost every person's life.
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It significantly reduced the distance between humans and machines, brought dating down to the movement of a thumb and caused toddlers to swipe and pinch windows.
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本课的词汇与口语要点
这节口语课以视频“Touchscreens – How Do They Work?”为素材。 这段视频共有 10 个句子、171 个单词可供跟读。 讲话部分时长为 0:50。 说话人语速较快，每分钟约 204 个词，会出现较多连读和弱读。 只有 75% 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 |
|---|---|---|
| intersection 名词 | /ˈɪntəɹˌsɛkʃən/ | 路口, 交叉 |
| thread 名词 | /ˈθɹɛd/ | 線 /线 |
| wire 名词 | /ˈwaɪɚ/ | 線 /线, 鐵絲 /铁丝 |
| layer 名词 | /ˈleɪ̯ɚ/ | 層 /层 |
| grid 名词 | /ɡɹɪd/ | 網格 /网格, 格子 |
| vertical 形容词 | /ˈvɝ.tɪ.kəl/ | 豎的 /竖的, 垂直 |
| invisible 形容词 | /ɪnˈvɪzəb(ə)l/ | 無形 /无形, 隱形 /隐形 |
| smartphone 名词 | /ˈsmɑɹtfoʊn/ | 智能手機 /智能手机, 智慧型手機 /智慧型手机 |
| detect 动词 | /dɪˈtɛkt/ | 察覺 /察觉, 發覺 /发觉 |
| measurement 名词 | /ˈmɛʒ.ə.mənt/ | 尺寸 |
| thumb 名词 | /ˈθʌm/ | 大拇指, 拇指 |
| horizontal 形容词 | /ˌhoɹəˈzɑn.təl/ | 水平, 橫的 /横的 |
| toddler 名词 | /ˈtɑdlɚ/ | 幼兒 /幼儿, 小孩 |
| pinch 动词 | /pɪnt͡ʃ/ | 捏, 掐 |
| optimization 名词 | /ˌɑptəmaɪˈzeɪʃən/ | 優化 /优化 |
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 |
|---|---|
| 被动语态 be + 过去分词 — 强调发生了什么，而不是谁做的 | been invented |
需要注意的发音
- “th” 音: thread /ˈθɹɛd/, thumb /ˈθʌm/
- “sh” 和 “zh” 音: intersection /ˈɪntəɹˌsɛkʃən/, measurement /ˈmɛʒ.ə.mənt/, optimization /ˌɑptəmaɪˈzeɪʃən/
- 长单词——注意重音位置: intersection /ˈɪntəɹˌsɛkʃən/, electrical /ɪˈlɛktɹɪkəl/, invisible /ɪnˈvɪzəb(ə)l/, accordingly /əˈkɔɹ.dɪŋ.li/, horizontal /ˌhoɹəˈzɑn.təl/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: vertical /ˈvɝ.tɪ.kəl/, invisible /ɪnˈvɪzəb(ə)l/, invent /ɪnˈvɛnt/, conductive /kənˈdʌktɪv/
- 词尾辅音 — 要读清楚，后面不要加元音: thread /ˈθɹɛd/, grid /ɡɹɪd/, detect /dɪˈtɛkt/, measurement /ˈmɛʒ.ə.mənt/, locate /ˈloʊˌkeɪt/
- /r/ 和 /l/ 的区别: electrical /ɪˈlɛktɹɪkəl/, accordingly /əˈkɔɹ.dɪŋ.li/, horizontal /ˌhoɹəˈzɑn.təl/
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 intersection, thread, wire 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。