跟读练习: Height, Length/Width, and Depth dimensions on blueprints - 通过视频学习英语口语
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Music When looking at the different views and determining what is a height,
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a depth, and a length or width may be challenging.
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The ASME, or American Society of Mechanical Engineers, has created a standard for height,
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length, width, and depth dimensions.
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Here is how you determine what these dimensions actually are.
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Depth is the distance between the front of the object and the back of the object.
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Think of it this way.
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If the front of the object is right here in front of us, the back of the object is farther away or deeper.
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The depth distance can't be seen from the front view,
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but it can be seen from the top view and the right side view.
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The height is the distance between the top of the object and the bottom of the object.
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Height is the vertical distance from the top of the part to the bottom of the part
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and can be seen in the front view and in the right side view.
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Height cannot be seen in the top view.
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Length and width are often used interchangeably when describing distance.
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The length or width of the object is the distance between the right side of the object
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and the left side of the object.
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The length or width can be seen in the front view and it can be seen in the top view.
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Length and width cannot be seen in the right side view.
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本课的词汇与口语要点
这节 B1 级别的口语课以视频“Height, Length/Width, and Depth dimensions on blueprints”为素材。 视频中反复出现的词有：view, object, width, length, distance。 这段视频共有 19 个句子、241 个单词可供跟读。 讲话部分时长为 2:16。 说话人语速较慢，每分钟约 106 个词，你有足够的时间模仿每一个音。 91% 的单词属于英语最常用的 3,000 词，词汇容易理解。
视频中的重点词汇
视频中最难的 12 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| width 名词 | /ˈwɪtθ/ | 寬度 /宽度 |
| dimension 名词 | /daɪˈmɛn.ʃən/ | 方面, 特點 /特点 |
| vertical 形容词 | /ˈvɝ.tɪ.kəl/ | 豎的 /竖的, 垂直 |
| object 名词 | /ˈɑb.d͡ʒɛkt/ | 物體 /物体, 物件 |
| height 名词 | /haɪt/ | 高低, 高度 |
| depth 名词 | /dɛpθ/ | 深度 |
| determine 动词 | /dɪˈtɜː(ɹ).mɪn/ | 確定 /确定, 決定 /决定 |
| describe 动词 | /dɪˈskɹaɪb/ | 描述, 描寫 /描写 |
| distance 名词 | /ˈdɪst(ə)n(t)s/ | 距離 /距离, 距 |
| length 名词 | /leɪŋ(k)θ/ | 長度 /长度, 長 /长 |
| bottom 名词 | /ˈbɑ.təm/ | 底部, 底端 |
| challenge 名词 | /ˈt͡ʃæl.ɪnd͡ʒ/ | 挑戰 /挑战 |
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 | can't be seen · can be seen · cannot be seen |
| 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 created |
| 用 “might / may” 表可能 might/may + 动词 — 有可能但不确定的事 | may be |
需要注意的发音
- “th” 音: width /ˈwɪtθ/, depth /dɛpθ/, length /leɪŋ(k)θ/
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: width /ˈwɪtθ/, object /ˈɑb.d͡ʒɛkt/, height /haɪt/, depth /dɛpθ/, describe /dɪˈskɹaɪb/
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 width, dimension, vertical 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。