跟读练习: Track 16 2 - 通过视频学习英语口语
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Recording 16 Let's find out just how environmentally aware you are.
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Question 1.
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How many trees do you think it would take to offset the CO2 emissions from a long -distance flight?
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Well, it's estimated that for each mile, or 1 .6 kilometres, that a jet flies,
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half a kilo of CO2 is added to the atmosphere.
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So, a round trip of 10 ,000 miles would emit about one and a half tonnes of CO2 per passenger.
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The amount of CO2 a tree can absorb depends on factors such as its type, location and age.
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The company Future Forests says that on average it would take two trees 99 years to counter the effect of this trip.
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So the answer here is C.
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Question 2.
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What is the most environmentally friendly way to wash your clothes?
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Well, the solvents used by most dry cleaners are damaging to the environment.
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In a washing machine, the vast majority of the energy, about 90 % of it, goes into heating up the water, not running through the cycle.
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Washing clothes in hot water, even by hand, uses a lot of energy to heat the water.
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Keeping washing temperatures low and always washing a full load is the best policy.
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So the correct answer is C.
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Question 3.
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Do you need to always turn off your electric lights to save energy?
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It is a common myth that flicking the lights on and off uses more energy than leaving them on. In fact,
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an ordinary bulb only has to be turned off for three seconds to outweigh the cost of turning it back on.
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For energy -efficient and other fluorescent bulbs, this rises to five minutes.
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Energy -efficient light bulbs use 75 % less energy than ordinary ones, so if you have those, but leave them on as you tidy,
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you'll probably still use less energy than if you switch your standard bulbs on and off.
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So the correct answer is B.
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Question 4.
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What is the most energy -efficient way of cooking a baked potato?
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A microwave uses just a third of the electricity required to operate an electric oven.
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And, of course, the potato will take much less time to cook.
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So the correct answer is B.
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Question 5.
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What is the best way to help reduce your CO2 emissions throughout the year?
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Well, it's estimated that one person taking the train for a year, rather than driving a car,
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would reduce their CO2 emission total by 2 .9 tonnes.
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Hanging out your washing rather than using a tumble dryer would cut CO2 by 0 .9 tonnes
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and working from home one day a week would cut 0 .88 tonnes.
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So the correct answer is A.
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本课的词汇与口语要点
视频中反复出现的词有：energy, washing, answer, bulb, tonnes。 这段视频共有 36 个句子、432 个单词可供跟读。 讲话部分时长为 3:26。 说话人语速平稳，每分钟约 126 个词，很适合跟读。 82% 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
视频中最难的 15 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| bulb 名词 | /ˈbʌlb/ | 鱗莖 /鳞茎 |
| emission 名词 | /ɪˈmɪʃ.ən/ | 排放 |
| cloth 名词 | /klɒθ/ | 布, 布料 |
| potato 名词 | /pəˈteɪ.təʊ/ | 土豆, 馬鈴薯 /马铃薯 |
| kilogram 名词 | /ˈkɪləɡɹæm/ | 千克, 公斤 |
| kilometre 名词 | /kɪˈlɑmɪtəɹ/ | 千米, 公里 |
| solvent 名词 | /ˈsɔlvənt/ | 溶劑 /溶剂 |
| tumble 动词 | /ˈtʌmbl̩/ | 翻滾 /翻滚, 跌倒 |
| tidy 形容词 | /ˈtaɪ.di/ | 整齊 /整齐, 整潔 /整洁 |
| microwave 名词 | /ˈmaɪkɹoʊˌweɪv/ | 微波 |
| absorb 动词 | /æbˈsɔɹb/ | 吸收 |
| cleaner 名词 | /ˈkli.nɚ/ | 清潔工 /清洁工 |
| bake 动词 | /beɪk/ | 烤, 烘 |
| offset 名词 | /ˈɔf.sɛt/ | 补偿, 抵销 |
| oven 名词 | /ˈʌ.vn̩/ | 烤爐 /烤炉, 爐 /炉 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| find out 动词 | 找出, 查明 |
| heat up 动词 | 加熱 /加热 |
| turn off 动词 | 關 /关, 關掉 /关掉 |
需要注意的发音
- “th” 音: cloth /klɒθ/, myth /mɪθ/
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 bulb, emission, cloth 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。