跟读练习: What is IMC (Intermetallic Compounds) part II? The different between IMC, alloy, eutectic - 通过视频学习英语口语

这段视频共有 28 个句子、300 个单词可供跟读。 讲话部分时长为 3:10。 说话人语速较慢，每分钟约 95 个词，你有足够的时间模仿每一个音。 只有 71% 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 个不太常见的单词，附发音和释义：

• alloy /ˈæ.lɔɪ/ (名词) — 合金. A metal that is a combination of two or more elements, at least one of which is a metal, a base metal.
• element /ˈɛləmənt/ (名词) — 要素. One of the simplest or essential parts or principles of which anything consists, or upon which the constitution or fundamental powers of anything are based.
• refer /ɹɪˈfɜː/ (动词) — 談到 /谈到. To direct the attention of (someone toward something).
• comprehensive /ˌkɑm.pɹəˈhɛn.sɪv/ (形容词) — 全面的, 綜合的 /综合的. Broadly or completely covering; including a large proportion of something.
• explore /ɪkˈsploɹ/ (动词) — 探索, 探險 /探险. To examine or investigate something systematically.
• goodbye /ɡʊdˈbaɪ/ — 再見 /再见, 再會 /再会. Farewell; a formula used to another person or persons when the speaker, writer, or person addressed is departing.
• distinct /dɪˈstɪŋkt/ (形容词) — 明顯 /明显, 清晰. Capable of being perceived very clearly.
• copper /ˈkɒpə/ (名词) — 銅 /铜. A reddish-brown metallic chemical element (symbol Cu) with the atomic number 29; also, the metal made up of this element.
• encounter /ɪnˈkaʊntɚ/ (动词) — 遇到, 遇見 /遇见. To meet (someone) or find (something), especially unexpectedly.
• furthermore /ˈfɜː(ɹ).ðə(ɹ)ˌmɔː(ɹ)/ (副词) — 並且 /并且, 而且. In addition; besides; further; what's more (i.e. to denote additional information).
• highlight /ˈhaɪˌlaɪt/ (动词) — 凸顯 /凸显, 強調 /强调. To make prominent; emphasize.
• classification /ˌklæsɪfɪˈkeɪʃən/ (名词) — 分類 /分类. The act of forming into a class or classes; a distribution into groups, as classes, orders, families, etc., according to some common relations or attributes.
• classroom /ˈklɑːsɹʊm/ (名词) — 教室, 課堂 /课堂. A room, often in a school, where classes take place.
• precise /pɹɪˈsaɪs/ (形容词) — 準確 /准确, 正確 /正确. Both exact and accurate.
• distinction /dɪˈstɪŋkʃən/ (名词) — 分別 /分别. That which distinguishes; a single occurrence of a determining factor or feature, the fact of being divided; separation, discrimination.

需要注意的发音

说话人用了 4 次缩略和弱读形式，例如 isn't, I'll, we'll。请按听到的简短形式来说。

• “sh” 和 “zh” 音: presentation /ˌpɹɛzn̩ˈteɪʃn̩/, classification /ˌklæsɪfɪˈkeɪʃən/, distinction /dɪˈstɪŋkʃən/, distinguish /dɪˈstɪŋ.ɡwɪʃ/
• 长单词——注意重音位置: comprehensive /ˌkɑm.pɹəˈhɛn.sɪv/, classification /ˌklæsɪfɪˈkeɪʃən/, characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/, analogy /əˈnæləd͡ʒi/, affinity /əˈfɪnɪti/

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. 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。
3. 录下自己的声音并与原声对比，特别注意 alloy, element, refer 这类单词。