跟讀練習: Embedded Systems Explained in 3 minutes - 通過影片學習英語口語
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37 句
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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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本課的詞彙與口語要點
這節 C1 級別的口語課以影片“Embedded Systems Explained in 3 minutes”為素材。 影片中反覆出現的詞有：embedded, integrated, applications, device, computer。 這段影片共有 37 個句子、509 個單詞可供跟讀。 講話部分時長為 3:48。 說話人語速平穩，每分鐘約 134 個詞，很適合跟讀。 只有 75% 的單詞屬於英語最常用的 3,000 詞，詞彙難度較高。
影片中的重點詞彙
影片中最難的 15 個單詞，附發音和釋義：
| 單詞 | 發音 | 釋義 |
|---|---|---|
| embed 動詞 | /ɪmˈbɛd/ | 鑲嵌, 鑲 |
| constraint 名詞 | /kənˈstɹeɪnt/ | 約束 /約束 |
| airplane 名詞 | /ˈɛɹˌpleɪ̯n/ | 飛機 /飛機, 飛行機 /飛行機 |
| compute 動詞 | /kəmˈpjuːt/ | 計算 /計算 |
| microcontroller 名詞 | /ˈmaɪkɹoʊkənˌtɹoʊlɚ/ | 微控制器 /微控制器 |
| vibration 名詞 | /vaɪˈbɹeɪʃən/ | 振動 /振動, 振盪 /振盪 |
| complexity 名詞 | /kəmˈplɛk.sɪ.ti/ | 複雜性 /複雜性 |
| optimize 動詞 | /ˈɑptɪmaɪz/ | 最佳化 |
| outnumber 動詞 | /aʊtˈnʌmbə(ɹ)/ | 超過 /超過 |
| dedicate 動詞 | /ˈdɛdɪˌkeɪt/ | 奉獻 /奉獻 |
| aforementioned 形容詞 | /əˈfɔɹˌmɛn.ʃənd/ | 上述的 |
| withstand 動詞 | /wɪðˈstænd/ | 抵抗, 反抗 |
| capsule 名詞 | /ˈkæps(ə)l/ | 蒴果 |
| microwave 名詞 | /ˈmaɪkɹoʊˌweɪv/ | 微波 |
| humidity 名詞 | /hjuːˈmɪd.ə.ti/ | 濕度 /溼度 |
需要注意的發音
- “sh” 和 “zh” 音: vibration /vaɪˈbɹeɪʃən/, aforementioned /əˈfɔɹˌmɛn.ʃənd/, compression /kəmˈpɹɛʃ.ən/, notification /ˌnoʊtɪfɪˈkeɪʃn̩/, navigation /nævɪˈɡeɪʃən/
- 長單詞——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/
中文母語者容易讀錯的音：
- /v/ — 不要讀成 /w/，上齒輕觸下唇: vibration /vaɪˈbɹeɪʃən/, versatile /ˈvɜː.səˌtaɪl/, microwave /ˈmaɪkɹoʊˌweɪv/, automotive /ˌɔtəˈmoʊtɪv/, navigation /nævɪˈɡeɪʃən/
- 詞尾子音 — 要讀清楚，後面不要加母音: embed /ɪmˈbɛd/, integrate /ˈɪn.tɪ.ɡɹeɪt/, constraint /kənˈstɹeɪnt/, compute /kəmˈpjuːt/, optimize /ˈɑptɪmaɪz/
- /r/ 和 /l/ 的區別: airplane /ˈɛɹˌpleɪ̯n/, microcontroller /ˈmaɪkɹoʊkənˌtɹoʊlɚ/
如何用這段影片練習
- 先完整聽一遍影片，不要開口，記下不認識的單詞。
- 用正常速度逐句跟讀，每句重複到你的節奏與說話人一致為止。
- 錄下自己的聲音並與原聲對比，特別注意 embed, constraint, airplane 這類單詞。
什麼是跟讀法？
跟讀法 (Shadowing) 是一種有科學依據的語言學習技巧，最初開發用於專業口譯員的培訓，並由多語言者Alexander Arguelles博士普及。這個方法簡單而強大：您在聽英語母語原聲的同時立即大聲重複——就像是一個延遲1-2秒緊跟說話者的影子。與被動聽力或語法練習不同，跟讀法強迫您的大腦和口腔肌肉同時處理並模模擬實的講話模式。研究表明它能顯著提高發音準確性，語調，節奏，連讀，聽力理解和口語流利度——使其成為雅思口語備考和真實英語交流最有效的方法之一。