跟读练习: Raspberry Pi Explained in 100 Seconds - 通过视频学习英语口语
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Raspberry Pi, a computer that fits in the palm of your hand, with a price tag as low as $5.
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The idea was born in 2006, and the first commercial unit was launched in 2012, and since then it's evolved into one of the best-selling computers in the world.
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It's named Raspberry because computer companies like to name themselves after fruit, and Pi for the Python programming language.
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Not only is the computer tiny, but it can also be quite powerful, with a quad-core processor and up to 8GB of RAM.
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They're great for building your own IoT prototypes, robots, security cameras, web servers, and many other fun projects.
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When you unbox your Raspberry Pi 4, you'll notice a bunch of little chips and connectors.
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In the center, we have our CPU and RAM.
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That is the brain of the operation.
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Nearby is the Wi-Fi Bluetooth module that can wirelessly connect to the outside world.
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At the top, we have a general purpose input-output connector for connecting other electrical devices.
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To the right, we have an Ethernet connection along with four USB ports.
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On the bottom, we have an audio jack to connect speakers or headphones, a CSI camera connector for building your own custom camera,
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micro HDMI ports for connecting multiple monitors, and finally, a USB-C port to provide power to the computer.
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But most importantly, flip the Raspberry Pi over to find the microSD slot.
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Think of it as a hard drive that contains the operating system required to interface with the hardware.
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You can use the Raspberry Pi like a normal desktop computer by connecting a keyboard, mouse and monitor.
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When you power it up the first time, you can install any operating system you'd like, but most beginners will take advantage of the Noobs installer,
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which installs a flavor of Linux called Raspberry Pi OS.
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Now that you're in, you can program it to take over the world.
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You might connect some LEDs to the GPIO header, then control them with a Python script.
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Or you might add a camera, then connect to WiFi to build your own home security system from scratch.
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The possibilities are limited only by your imagination.
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This has been Raspberry Pi in 100 seconds.
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If you enjoy these short videos, please make sure to hit the like button and subscribe.
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It really helps out.
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And if you want to see more Raspberry Pi content, let me know in the comments.
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Thanks for watching, and I will see you in the next one.
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本课的词汇与口语要点
这节 B2 级别的口语课以视频“Raspberry Pi Explained in 100 Seconds”为素材。 视频中反复出现的词有：Raspberry, computer, connect, camera, connector。 这段视频共有 27 个句子、421 个单词可供跟读。 讲话部分时长为 2:05。 说话人语速较快，每分钟约 202 个词，会出现较多连读和弱读。 只有 74% 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 |
|---|---|---|
| connector 名词 | /kəˈnɛktɚ/ | 連接器 /连接器 |
| install 动词 | /ɪnˈstɔl/ | 安裝 /安装 |
| beginner 名词 | /bəˈɡɪnɚ/ | 初學者 /初学者, 新手 |
| microwave 名词 | /ˈmaɪkɹoʊˌweɪv/ | 微波 |
| prototype 名词 | /ˈpɹəʊtətaɪp/ | 原型, 雏形 |
| headphones 名词 | /ˈhɛdfoʊnz/ | 耳機 /耳机, 耳筒 |
| module 名词 | /ˈmɑd͡ʒul/ | 模塊 /模块 |
| desktop 名词 | /ˈdɛsktɒp/ | 桌面 |
| subscribe 动词 | /səbˈskɹaɪb/ | 簽署 /签署 |
| flavor 名词 | /ˈfleɪvə/ | 味道, 味兒 /味儿 |
| importantly 副词 | /ɪmˈpɔɹ.tənt.li/ | 重要的是... |
| keyboard 名词 | /ˈki.bɔɹd/ | 鍵盤 /键盘 |
| interface 名词 | /ˈɪn(t)ɚˌfeɪs/ | 接口 |
| scratch 动词 | /skɹæt͡ʃ/ | 抓, 划 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| take over 动词 | 接管, 接手 |
需要注意的发音
说话人用了 4 次缩略和弱读形式，例如 they're, you'd, you'll。请按听到的简短形式来说。
中文母语者容易读错的音：
- /v/ — 不要读成 /w/，上齿轻触下唇: microwave /ˈmaɪkɹoʊˌweɪv/, evolve /ɪˈvɑlv/, flavor /ˈfleɪvə/
- 词尾辅音 — 要读清楚，后面不要加元音: quad /kwɑd/, microwave /ˈmaɪkɹoʊˌweɪv/, evolve /ɪˈvɑlv/, prototype /ˈpɹəʊtətaɪp/, headphones /ˈhɛdfoʊnz/
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。
- 先用 0.75 倍速逐句跟读，熟练之后再回到正常速度。
- 录下自己的声音并与原声对比，特别注意 connector, install, beginner 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。