跟读练习: English Vocabulary for Engineering: Bolts - 通过视频学习英语口语
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25 句
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So we're going to talk about some of the vocabulary that you use with bolts.
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Now a bolt fastens pieces together and
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because it fastens things it is also known in a group of things that we use called fasteners.
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A screw is another one for example.
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This is the head of the bolt and
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if we take this measurement across the head of the bolt this will give us the size of the spanner
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or wrench that we need to use for the bolt.
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So if this measurement across the head is 12 millimeters we need a 12 millimeter spanner or wrench.
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Now a spanner is British English and wrench is American English.
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A bolt also has a thread and if we measure the diameter of the thread, this will give us the size of the bolt.
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So if the diameter measures 8mm, we have a size 8 or a number 8 bolt.
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The thread on a bolt is cut.
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Normally, nowadays, the thread is cut using a CNC machine.
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But for a one-off piece, you also need to use this.
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And this is a die.
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And you cut a thread, an external thread, with a die.
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What you can do with a bolt is you can tighten it.
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and if you tighten it, you move your spanner in a clockwise direction.
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You can also loosen a bolt, and if you loosen a bolt,
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you turn the spanner in an anticlockwise direction or a counterclockwise.
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Anticlockwise is British English, and counterclockwise is American English.
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So that's the vocabulary for a bolt.
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I hope you find it useful.
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And please subscribe to the channel if you haven't already.
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And maybe give me a like.
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本课的词汇与口语要点
这节 B2 级别的口语课以视频“English Vocabulary for Engineering: Bolts”为素材。 视频中反复出现的词有：bolt, thread, spanner, English, wrench。 这段视频共有 25 个句子、281 个单词可供跟读。 讲话部分时长为 2:16。 说话人语速平稳，每分钟约 124 个词，很适合跟读。 只有 73% 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 13 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| bolt 名词 | /boʊlt/ | 螺栓 |
| spanner 名词 | /ˈspænə/ | 扳手, 扳子 |
| anticlockwise 形容词 | /ˌæn.tɪˈklɑkˌwaɪz/ | 反時針方向的 /反时针方向的, 逆時針的 /逆时针的 |
| fasten 动词 | /ˈfæsn̩/ | 系住, 扣住 |
| loosen 动词 | /ˈluːsən/ | 鬆開 /松开 |
| vocabulary 名词 | /vəˈkæb.jə.lə.ɹi/ | 詞匯 /词汇, 語匯 /语汇 |
| measurement 名词 | /ˈmɛʒ.ə.mənt/ | 尺寸 |
| diameter 名词 | /daɪˈæmɪdɚ/ | 直徑 /直径 |
| clockwise 副词 | /ˈklɒkwaɪz/ | 順時針 /顺时针 |
| fastener 名词 | /ˈfɑːsənə/ | 緊固物 /紧固物, 鋏 /铗 |
| millimetre 名词 | 毫米, 公釐 /公厘 | |
| subscribe 动词 | /səbˈskɹaɪb/ | 簽署 /签署 |
| nowadays 副词 | /ˈnaʊ.ə.deɪz/ | 現在 /现在, 現今 /现今 |
需要注意的发音
- 长单词——注意重音位置: anticlockwise /ˌæn.tɪˈklɑkˌwaɪz/, vocabulary /vəˈkæb.jə.lə.ɹi/, diameter /daɪˈæmɪdɚ/
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: bolt /boʊlt/, wrench /ˈɹɛnt͡ʃ/, anticlockwise /ˌæn.tɪˈklɑkˌwaɪz/, measurement /ˈmɛʒ.ə.mənt/, clockwise /ˈklɒkwaɪz/
- /æ/ — 嘴张大，不要读成 /e/: spanner /ˈspænə/, anticlockwise /ˌæn.tɪˈklɑkˌwaɪz/, fasten /ˈfæsn̩/, vocabulary /vəˈkæb.jə.lə.ɹi/, diameter /daɪˈæmɪdɚ/
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 bolt, spanner, anticlockwise 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。