跟读练习: Embedded Systems Explained in 3 minutes - 通过视频学习英语口语

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An embedded system is an autonomous electronic and computer system, with the goal of executing a well -defined task in real -time.
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Here we see the first difference from a PC, which is versatile because it can run many types of applications, whereas an embedded system only performs a dedicated function.
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Furthermore, embedded systems are often invisible to the user
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because they are integrated within a device
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that itself serves a function for example a microwave oven an
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airplane a washing machine etc domains of embedded systems are primarily
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found in the following areas first we have general computing similar to pc applications
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but integrated into an embedded system such as smartphones tablets etc
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then systems control such as motor control automotive applications aviation
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and navigation systems also signal processing with examples like radar sonar
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and video compression and finally communication and networks involving information transmission telephony
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and the internet for example
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so as you can see there are many embedded systems today
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embedded systems far outnumber computers in terms of quantity an embedded system typically consists of microcontroller that solves a specific problem,
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often subject to time and size constraints.
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A microcontroller is an integrated circuit that combines essential computer elements that includes a processor to provide computing power,
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a central memory, often limited, containing the program and data, sensors acting as inputs to receive information,
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such as temperature, vibration, humidity,
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proximity, pressure, or contact, and actuators or outputs that allow the embedded system to perform actions on the external real world environment.
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These can include LEDs, display screens, speakers, alarms, or a combination of these, as seen in an airplane cockpit.
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Finally, embedded systems are equipped with communication means that enable them to communicate via the internet with external applications and end users.
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This is the phenomenon of the Internet of Things, or IoT.
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It's important to note
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that there is a significant difference between embedded systems based on the device in
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which they are embedded and the complexity of the task they perform.
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On one hand, there are small -scale embedded systems with very simple hardware
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and software sufficient for basic tasks like a coffee machine that transforms your coffee capsule.
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On the other hand, there are advanced and sophisticated embedded systems found in devices like airplanes,
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designed to facilitate piloting and improve safety.
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The design of an embedded system typically depends on the characteristics and constraints of the device in which it is integrated.
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This includes considerations such as weight and size, program size and required execution time, especially for embedded systems with basic hardware.
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The appropriate hardware to run the software Energy consumption,
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optimized based on the size and complexity of the embedded system Continuity of operation,
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which requires embedded systems to withstand harsh external conditions such as vibrations, shocks, temperature variations, and weather And finally,
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manufacturing costs, determined by the aforementioned constraints Thanks a bunch for tuning in.
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To stay in the loop with all things tech and computer science, be sure to click that subscribe button and ring that notification bell.
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Goodbye.
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本课的词汇与口语要点

这节 C1 级别的口语课以视频“Embedded Systems Explained in 3 minutes”为素材。 视频中反复出现的词有：embedded, integrated, applications, device, computer。 这段视频共有 37 个句子、509 个单词可供跟读。 讲话部分时长为 3:48。 说话人语速平稳，每分钟约 134 个词，很适合跟读。 只有 75% 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 15 个单词，附发音和释义：

单词发音释义
embed 动词/ɪmˈbɛd/镶嵌, 镶
constraint 名词/kənˈstɹeɪnt/約束 /约束
airplane 名词/ˈɛɹˌpleɪ̯n/飛機 /飞机, 飛行機 /飞行机
compute 动词/kəmˈpjuːt/計算 /计算
microcontroller 名词/ˈmaɪkɹoʊkənˌtɹoʊlɚ/單片機 /单片机
vibration 名词/vaɪˈbɹeɪʃən/振動 /振动, 振盪 /振荡
complexity 名词/kəmˈplɛk.sɪ.ti/複雜性 /复杂性
optimize 动词/ˈɑptɪmaɪz/优化
outnumber 动词/aʊtˈnʌmbə(ɹ)/超過 /超过
dedicate 动词/ˈdɛdɪˌkeɪt/奉獻 /奉献
aforementioned 形容词/əˈfɔɹˌmɛn.ʃənd/上述的
withstand 动词/wɪðˈstænd/抵抗, 反抗
capsule 名词/ˈkæps(ə)l/蒴果
microwave 名词/ˈmaɪkɹoʊˌweɪv/微波
humidity 名词/hjuːˈmɪd.ə.ti/濕度 /湿度

需要注意的发音

  • “sh” 和 “zh” 音: vibration /vaɪˈbɹeɪʃən/, aforementioned /əˈfɔɹˌmɛn.ʃənd/, compression /kəmˈpɹɛʃ.ən/, notification /ˌnoʊtɪfɪˈkeɪʃn̩/, navigation /nævɪˈɡeɪʃən/
  • 长单词——注意重音位置: microcontroller /ˈmaɪkɹoʊkənˌtɹoʊlɚ/, complexity /kəmˈplɛk.sɪ.ti/, actuator /ˈæk.tjuː.eɪ.tə(ɹ)/, telephony /təˈlɛf.ə.ni/, aforementioned /əˈfɔɹˌmɛn.ʃənd/

中文母语者容易读错的音：

  • /v/ — 不要读成 /w/，上齿轻触下唇: vibration /vaɪˈbɹeɪʃən/, versatile /ˈvɜː.səˌtaɪl/, microwave /ˈmaɪkɹoʊˌweɪv/, automotive /ˌɔtəˈmoʊtɪv/, navigation /nævɪˈɡeɪʃən/
  • 词尾辅音 — 要读清楚，后面不要加元音: embed /ɪmˈbɛd/, integrate /ˈɪn.tɪ.ɡɹeɪt/, constraint /kənˈstɹeɪnt/, compute /kəmˈpjuːt/, optimize /ˈɑptɪmaɪz/
  • /r/ 和 /l/ 的区别: airplane /ˈɛɹˌpleɪ̯n/, microcontroller /ˈmaɪkɹoʊkənˌtɹoʊlɚ/

如何用这段视频练习

  1. 先完整听一遍视频，不要开口，记下不认识的单词。
  2. 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。
  3. 录下自己的声音并与原声对比，特别注意 embed, constraint, airplane 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。

影子跟读法: 阅读完整分步指南 →