跟读练习: Listening part three (experiment on artificial sweeteners) @ieltslisteningpro.24 - 通过YouTube学习英语口语
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Part 3.
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Part 3.
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You will hear two food science students called Adam and Rosie starting to plan their presentation on diet and obesity.
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First, you have some time to look at questions 21 to 24.
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Now listen carefully and answer questions 21 to 24.
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OK, Rosie, shall we try to get some ideas together for our presentation on diet and obesity?
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Sure.
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I can talk about the experiment I did to see if people can tell the difference between real sugar and artificial sweeteners.
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Where you gave people drinks with either sugar or artificial sweeteners,
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and they had to say which they thought it was?
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Yeah.
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It took me ages to decide exactly how I'd organise it,
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especially how I could make sure that people didn't know which drink I was giving them.
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It was hard to keep track of it all,
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especially as I had so many people doing it.
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I had to make sure I kept a proper record of what each person had had.
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So, could most people tell the difference?
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Yeah.
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I hadn't thought that they would be able to, but most people could.
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Then there's that experiment I did,
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measuring the fat content of nuts,
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to see if the nutritional information given on the packet was accurate.
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The one where you ground up the nuts and mixed them with a chemical to absorb the fat?
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Yes.
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My results were a bit problematic.
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The fat content for that type of nut seemed much lower than it said on the package.
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But I reckon the package information was right.
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I think I should probably have ground up the nuts more than I did.
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It's possible that the scales for weighing the fat weren't accurate enough too.
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I'd really like to try the experiment again sometime.
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Before you hear the rest of the discussion,
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you have some time to look at questions 25 to 30.
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Thank you.
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So what can we say about helping people to lose weight?
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There's a lot we could say about what restaurants could do to reduce obesity.
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I read that the items at the start of a menu
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and the items at the end of a menu are much more likely to be chosen than the items in the middle.
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So if you put the low-calorie items at the beginning and end of the menu,
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people will probably go for the food with fewer calories without even realising what they're doing.
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I think food manufacturers could do more to encourage healthy eating.
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How?
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Well, when manufacturers put calorie counts of a food on the label,
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they're sometimes really confusing.
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And I suspect they do it on purpose,
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because food that's high in calories tastes better,
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and so they'll sell more.
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Yeah, so if you look at the amount of calories in a pizza,
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they'll give you the calories per quarter pizza,
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and you think, oh, that's not too bad.
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But who's going to eat a quarter pizza?
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Exactly.
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I suppose another approach to this problem is to get people to exercise more.
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Right.
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In England, the current guidelines offer at least 30 minutes of brisk walking five days a week.
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Now, when you ask them,
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about 40% of men and 30% of women say they do this.
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But when you objectively measure the amount of walking they do with motion sensors,
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you find that only 6% of men and 4% of women do the recommended amount of exercise.
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Hmm, so you can see why obesity is growing.
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So how can people be encouraged to take more exercise?
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Hmm, well, for example, think of the location of stairs in a train station.
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If people reach the stairs before they reach the escalator when they're leaving the station,
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they're more likely to take the stairs.
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And if you increase the width of the stairs,
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you'll get more people using them at the same time.
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It's an unconscious process and influenced by minor modifications in their environment.
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Right.
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Great.
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And it might not be a big change,
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but if it happens every day, it all adds up.
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Yes.
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But actually, I'm not sure if we should be talking about exercise in our presentation.
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Well, we've done quite a bit of reading about it.
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I know, but it's going to mean we have a very wide focus.
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And our tutor did say that we need to focus on causes and solutions in terms of nutrition.
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Oh, I suppose so.
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And we've got plenty of information about that.
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OK, well, that will be simpler.
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So, what shall we do now?
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We've still got half an hour before our next lecture.
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Let's think about what we're going to include and what we'll go where.
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Then we can decide what slides we need.
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OK, fine.
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That is the end of part three.
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You now have half a minute to check your answers to part three.
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Thank you.
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关于本课
在本节课中，学习者将通过观看一段关于饮食与肥胖的 YouTube 视频来练习英语听力与口语。您将听到两位食品科学学生讨论他们的实验和研究，内容涉及人们对真实糖和人工甜味剂的辨别能力。通过这个练习，您将能更好地理解与饮食相关的专业英语，并提高您的听力理解能力。
关键词汇与短语
- 实验 (experiment) - 指科学研究的过程，可以用来检验假设。
- 真实糖 (real sugar) - 指自然提取的糖，与人工糖相比。
- 人工甜味剂 (artificial sweeteners) - 为了替代糖而制造的低热量或无热量的甜味添加剂。
- 卡路里 (calorie) - 食物中能量的单位。
- 营养信息 (nutritional information) - 食品包装上所标示的营养成分和热量等信息。
- 薄饼 (pizza) - 一种受欢迎的快餐，通常含有高热量。
- 菜单 (menu) - 向顾客展示可供选择的食物和饮料的列表。
练习建议
在进行 shadowing 练习时，请注意视频的语速和语调。您可以模仿视频中的发音和情感表达，从而提高英语发音。如果您在看 YouTube 学英语，建议停顿并重复每一段对话，特别是那些含有挑战性单词或短语的部分。这种方法有助于加深记忆并增强口语流利度。
另外，在进行雅思口语练习时，可以尝试用自己的话复述视频中的内容，这样不仅能检验您的理解能力，还能提升您的自信心。shadow speech 将是一个有效的工具，您可以在轻松的环境中，与不同的对话者练习，提高与他人沟通的能力。
通过这项练习，您将能更全面地理解饮食与健康的关系，并在处理相关话题时，能更加得心应手。不断练习，您的英语水平和听力理解能力必将显著提升！
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。