跟读练习: What Is Return on Investment (ROI)? | Business: Explained - 通过视频学习英语口语
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17 句
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Understanding return on investment is vital in business.
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Using it, you can justify projects you want to launch, gain insight into team performance,
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and identify which initiatives to prioritize or put on hold.
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Return on investment, or ROI, is a financial metric that denotes how much profit an investment has generated.
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ROI comes in two forms, depending on when you calculate it.
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Anticipated and Actual.
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Anticipated ROI is calculated before a project begins and gauges its potential profit using estimated costs and revenues.
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Actual ROI is computed after a project concludes and indicates how much profit it produced compared to the estimate.
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The most common formula for calculating ROI is net profit divided by the cost of investment, multiplied by 100.
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A positive return means a project's revenue is greater than its cost.
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A negative return means the opposite.
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If a project breaks even, then its revenue matches its expenses.
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Making smart decisions about when and where you allocate resources can accelerate business growth.
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Leveraging ROI, you can evaluate projects and advocate for why you should or shouldn't pursue them.
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You can also measure the outcomes of completed initiatives to inform future proposals.
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If you want to learn more about return on investment and how to use it to drive decision -making,
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use the links in the video description to visit our Business Insights blog and explore our online finance and accounting courses.
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本课的词汇与口语要点
这节口语课以视频“What Is Return on Investment (ROI)?”为素材。 视频中反复出现的词有：Roi, investment, return, project, profit。 这段视频共有 14 个句子、232 个单词可供跟读。 讲话部分时长为 1:49。 说话人语速平稳，每分钟约 127 个词，很适合跟读。 只有 78% 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 |
|---|---|---|
| calculate 动词 | /ˈkælkjʊleɪt/ | 計算 /计算, 算 |
| initiative 名词 | /ɪˈnɪʃ.ə.tɪv/ | 主動權 /主动权 |
| estimate 名词 | /ˈɛs.tɪ.mət/ | 估計 /估计 |
| insight 名词 | /ˈɪnsaɪ̯t/ | 見地 /见地 |
| anticipate 动词 | /ænˈtɪs.ɪ.peɪt/ | 預料 /预料, 預想 /预想 |
| proposal 名词 | /pɹəˈpoʊzəl/ | 提議 /提议, 建議 /建议 |
| compare 动词 | /kəmˈpɛɚ/ | 比, 比較 /比较 |
| formula 名词 | /ˈfɔː.mjʊ.lə/ | 公式 |
| resource 名词 | /ɹɪˈzɔːs/ | 資源 /资源 |
| vital 形容词 | /ˈvaɪtəl/ | 生命的 |
| indicate 动词 | /ˈɪndɪˌkeɪt/ | 表明, 表示 |
| explore 动词 | /ɪkˈsploɹ/ | 探索, 探險 /探险 |
| pursue 动词 | /pɚˈsu/ | 追求 |
| expense 名词 | /ɪkˈspɛns/ | 費用 /费用, 花费 |
| depend 动词 | /dɪˈpɛnd/ | 信任, 信賴 /信赖 |
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 | is calculated · is computed |
| 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 generated |
需要注意的发音
- 长单词——注意重音位置: initiative /ɪˈnɪʃ.ə.tɪv/, anticipate /ænˈtɪs.ɪ.peɪt/, accelerate /ɪkˈsɛl.əˌɹeɪt/, prioritize /pɹaɪˈɒɹ.ə.taɪz/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: initiative /ɪˈnɪʃ.ə.tɪv/, vital /ˈvaɪtəl/, advocate /ˈæd.və.kət/, divide /dɪˈvaɪd/, evaluate /ɪˈvaljʊeɪt/
- 词尾辅音 — 要读清楚，后面不要加元音: calculate /ˈkælkjʊleɪt/, initiative /ɪˈnɪʃ.ə.tɪv/, estimate /ˈɛs.tɪ.mət/, insight /ˈɪnsaɪ̯t/, anticipate /ænˈtɪs.ɪ.peɪt/
- /r/ 和 /l/ 的区别: proposal /pɹəˈpoʊzəl/, explore /ɪkˈsploɹ/, leverage /ˈlɛv.(ə.)ɹɪd͡ʒ/, accelerate /ɪkˈsɛl.əˌɹeɪt/
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 calculate, initiative, estimate 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。