跟读练习: National Geographic Reading Explorer 2 Unit 1 Space Food - 通过视频学习英语口语
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Since the start of human spaceflight, NASA has worked to improve the quality and variety of food for its astronauts.
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NASA food scientists design special menus that provide astronauts with the food they need to live in space for long durations.
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Eating on Earth is very different from eating in space.
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Space food needs to be easy to hold and eat in zero gravity.
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It also needs to be healthy and taste good.
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This is NASA's Space Food Systems Laboratory.
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Here, NASA's space food scientists work to improve the astronauts' food.
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It's important that the astronauts get a balanced diet.
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A lot of the food the astronauts eat is freeze-dried.
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When food is freeze-dried, most of the water is removed from inside it, so the food becomes much lighter.
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Also, freeze-dried food can be kept for a long time without needing to be stored in a fridge.
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Astronauts rarely get the chance to make their own food, but it does happen on special occasions.
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These astronauts are enjoying a pizza party.
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When Italian astronaut Paolo Nespoli mentioned to his team on Earth how much he missed his favorite food,
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NASA sent a variety of ingredients on the next supply ship.
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This included pre-cooked pizza bases,
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tomato sauce, cheese wedges, and various topping options including olives and pepperoni.
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The astronauts used scissors to slice the floating pizzas,
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but only after letting them spin around in microgravity for fun.
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本课的词汇与口语要点
这节 B1 级别的口语课以视频“National Geographic Reading Explorer 2 Unit 1 Space Food”为素材。 视频中反复出现的词有：astronaut, space, dried, freeze, Nasa。 这段视频共有 19 个句子、241 个单词可供跟读。 讲话部分时长为 2:30。 说话人语速较慢，每分钟约 96 个词，你有足够的时间模仿每一个音。 只有 76% 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
视频中最难的 14 个单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| astronaut 名词 | /ˈæstɹəˌnɔt/ | 太空人, 宇航員 /宇航员 |
| freeze 动词 | /ˈfɹiːz/ | 凍結 /冻结, 凍 /冻 |
| scientist 名词 | /ˈsaɪəntəst/ | 科學家 /科学家 |
| microgravity 名词 | 微重力 | |
| pepperoni 名词 | /pɛpəˈɹoʊni/ | 辣肉腸 /辣肉肠, 貝貝羅尼 /贝贝罗尼 |
| scissors 名词 | /ˈsɪzəz/ | 剪刀, 剪子 |
| wedge 名词 | /wɛd͡ʒ/ | 楔, 楔子 |
| ingredient 名词 | /ɪnˈɡɹiːdi.ənt/ | 成份, 材料 |
| tomato 名词 | /təˈmeɪ.toʊ/ | 西紅柿 /西红柿, 番茄 |
| float 动词 | /fləʊt/ | 浮, 漂浮 |
| slice 名词 | /slaɪs/ | 片 |
| olive 名词 | /ˈɑ.lɪv/ | 橄欖 /橄榄 |
| duration 名词 | /dʒʊˈɹeɪ.ʃən/ | 時間 /时间, 長短 /长短 |
| menu 名词 | /ˈmɛn.juː/ | 菜單 /菜单 |
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 removed · can be kept |
| 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 worked |
| 义务：must / have to / need to 表示某事是必要的 | need to live · needs to be |
| 现在进行时 am/is/are + -ing — 此刻或近期正在发生的事 | are enjoying |
需要注意的发音
- 长单词——注意重音位置: pepperoni /pɛpəˈɹoʊni/, ingredient /ɪnˈɡɹiːdi.ənt/
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: olive /ˈɑ.lɪv/, gravity /ˈɡɹævɪti/
- 词尾辅音 — 要读清楚，后面不要加元音: astronaut /ˈæstɹəˌnɔt/, freeze /ˈfɹiːz/, scientist /ˈsaɪəntəst/, scissors /ˈsɪzəz/, wedge /wɛd͡ʒ/
- /æ/ — 嘴张大，不要读成 /e/: astronaut /ˈæstɹəˌnɔt/, gravity /ˈɡɹævɪti/
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 astronaut, freeze, scientist 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。