跟读练习: Recent IELTS Listening Test 2026 | Construction Materials - 通过视频学习英语口语
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42 句
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You will hear part of a lecture about the use of different building materials.
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First, you have some time to look at questions 31 to 40.
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Thank you.
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Now listen carefully and answer questions 31 to 40.
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Good morning, everybody.
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Can you all hear me?
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Good.
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Well, today I'm going to be talking about construction materials, where they come from and what their properties are.
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First of all, then, what are the sources of the materials we use in construction?
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Well, many of them are manufactured.
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Plastic is one example.
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Others are natural.
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But even naturally occurring materials usually require processing before they can be used.
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Wood, for instance, is rarely used directly from trees.
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Instead, this natural material is first cut into required lengths and then seasoned to remove the excess moisture.
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The result is what we call timber.
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And then timber itself is often treated with preservatives before use, especially if it's going to be used on the outside of a building.
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In a similar way, stone needs to be cut to shape and may also be polished before being used for building.
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Of course, the more processing that's required, the more expensive the material becomes.
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What about selection?
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When we're deciding which kind of material to use, cost is not the only consideration.
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It's important to consider the effect on the environment, too.
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The problem is, large amounts of energy are used.
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For example, it takes huge amounts of energy to produce aluminium, and materials like timber need a lot of energy to transport because of their weight.
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Well, that's enough about sources.
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Let's move on to material properties, and let's first consider appearance.
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Now, there's a vast range of materials used in the building industry, and they vary tremendously in their appearance.
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Even for any single building material, appearance may vary greatly.
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For example, brick and stone come in a very wide range of colours, and can be smooth or very rough.
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And timber is especially interesting because the grain patterns on each piece, even from the same tree, are unique.
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But properties have to be described very accurately for construction purposes, and that usually involves the use of mathematical formulae.
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It isn't enough to say that a particular material is rough or strong or heavy.
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Words are subjective and they can be ambiguous so verbal descriptions alone aren't enough.
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Reflectance is a good example of this.
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Precise values for a range of building materials are available.
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Reflectance is a measure of the ability of a surface to reflect light, and a perfect reflector has a reflectance of one.
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A polished, mirror -like silver surface has a reflectance of very nearly one.
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A plaster surface, which has been painted brilliant white has a reflectance of around
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0 .8 quarry tiles have a reflectance of about 0 .1
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and black velvet has a reflectance of nearly zero well let's
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move on now to another very important property of materials that is the end of part four you now have one
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One minute to check your answers to part four.
FOR YOU
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本课的词汇与口语要点
这节口语课以视频“Recent IELTS Listening Test 2026”为素材。 视频中反复出现的词有：material, reflectance, timber, example, properties。 这段视频共有 42 个句子、504 个单词可供跟读。 讲话部分时长为 4:46。 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。 84% 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 15 个值得学习的单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| timber 名词 | /ˈtɪmbɚ/ | 木材 |
| polish 动词 | /ˈpɑ.lɪʃ/ | 擦亮 |
| vast 形容词 | /væst/ | 浩大 |
| mirror 名词 | /ˈmiɹɚ/ | җинзы, 鏡 /镜 |
| occur 动词 | /əˈkɜː/ | 發生 /发生 |
| carefully 副词 | /ˈkɛɹf(ə)li/ | 小心地 |
| formula 名词 | /ˈfɔː.mjʊ.lə/ | 公式 |
| rarely 副词 | /ˈɹɛəɹli/ | 很少, 罕有地 |
| smooth 形容词 | /smuːð/ | 平穩 /平稳, 順利 /顺利 |
| reflect 动词 | /ɹɪˈflɛkt/ | 反映, 反射 |
| greatly 副词 | /ˈɡɹeɪ̯t.li/ | 大大 |
| brick 名词 | /ˈbɹɪk/ | 磚仔 /砖仔, 磚 /砖 |
| excess 名词 | /ˈɛksɛs/ | 過量 /过量, 過剩 /过剩 |
| grain 名词 | /ɡɹeɪn/ | 糧食 /粮食, 穀物 /谷物 |
| lecture 名词 | /ˈlɛk.t͡ʃə/ | 演講 /演讲 |
需要注意的发音
说话人用了 4 次缩略和弱读形式，例如 aren't, I'm, isn't。请按听到的简短形式来说。
- “th” 音: smooth /smuːð/, mathematical /ˌmæθ(.ə)ˈmæt.ɪ.kəl/
- “sh” 和 “zh” 音: polish /ˈpɑ.lɪʃ/, consideration /kənˌsɪd.əˈɹeɪ.ʃən/
- 长单词——注意重音位置: naturally /ˈnæt͡ʃ.(ə.)ɹə.li/, consideration /kənˌsɪd.əˈɹeɪ.ʃən/, mathematical /ˌmæθ(.ə)ˈmæt.ɪ.kəl/, accurately /ˈæk.jə.ɹɪt.li/, aluminium /ˌæl.(j)uˈmɪn.i.əm/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: vary /ˈvɛəɹi/, vast /væst/, involve /ɪnˈvɑlv/, verbal /ˈvɜː.bəl/, subjective /səbˈd͡ʒɛktɪv/
- 词尾辅音 — 要读清楚，后面不要加元音: polish /ˈpɑ.lɪʃ/, vast /væst/, reflect /ɹɪˈflɛkt/, involve /ɪnˈvɑlv/, brick /ˈbɹɪk/
- /r/ 和 /l/ 的区别: naturally /ˈnæt͡ʃ.(ə.)ɹə.li/, carefully /ˈkɛɹf(ə)li/, rarely /ˈɹɛəɹli/, reflect /ɹɪˈflɛkt/, greatly /ˈɡɹeɪ̯t.li/
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 timber, polish, vast 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。