シャドーイング練習: Electrical Terms Explained For English Beginners - 動画で英語スピーキングを学ぶ
レッスンを作成中...
1
Hello everyone, welcome back to Learning English Pro, I'm Jer, your online tutor and guide.
2
In today's video, we're diving into the world of electricians, and exploring essential vocabulary relating to this role.
3
If you're a regular follower of my channel, you'll know that the complete word list is in the description waiting for you to revise, or if you want to follow along with the video.
4
So with everything in mind, let's get started.
5
Our first term is voltage.
6
Voltage can be measured in volts.
7
This represents the electrical pressure in a circuit.
8
It's the force that pushes an electric current through wires and components.
9
Understanding voltage is important for electrical maintenance as it ensures safety and efficient operation.
10
Next up, amperage.
11
This is measured in amperes and it tells us the flow rate of an electric current in a circuit.
12
It's like the volume of water flowing through a pipe.
13
Electricians need to be aware of amperage to prevent overloading circuits and ensure proper functioning.
14
Let's dive into resistance.
15
Resistance, measured in ohms, is the opposition to the flow of electricity in a circuit.
16
It determines how much a component or material resists the passage of an electric current.
17
Understanding resistance is important for designing and troubleshooting electrical circuits.
18
Moving on to conduit.
19
In electrical work, a conduit is a protective tube or pipe used to encase electrical wires.
20
It shields the wires from damage and keeps them organised.
21
Conduits are important for safety and maintaining the integrity of electrical installations.
22
Now let's talk about the multimeter.
23
A multimeter is an essential tool for electricians.
24
It can measure voltage, amperage and resistance, making it indispensable for troubleshooting and testing electrical systems.
25
It's like a Swiss army knife for electricians.
26
Grounding is a safety measure that connects electrical systems to the earth.
27
It helps prevent electrical shocks and ensures the safe dissipation of excess voltage.
28
Proper grounding is a must in electrical maintenance.
29
Now circuit breakers.
30
These devices automatically interrupt the flow of electricity when a fault or overload occurs.
31
They are crucial for protecting electrical systems and preventing electrical fires.
32
A lot of times you will find these circuit breakers at a load centre or electrical panel.
33
This is the central distribution point for electrical circuits in a building.
34
Electricians use load centres or electrical panels to control and distribute power throughout a structure.
35
Next on our list is fuses.
36
Fuses protect devices that melt or blow out when there's an overcurrent.
37
They act as sacrificial elements, preventing further damage to the circuit.
38
Electricians often replace fuses as part of their maintenance work.
39
Our next term is conductor.
40
Conductors are materials that easily allow the flow of electricity.
41
In contrast to insulators, which we'll get in a minute, conductors like copper and aluminium or aluminium are commonly used in electrical wiring.
42
Now let's discuss insulation or insulators.
43
These materials are the ones that surround electrical wires to prevent them from coming into contact with other conductive materials.
44
Proper insulation is essential to prevent short circuits.
45
Now let's look at a transformer.
46
Transformers are devices that are used to change the voltage level of an electrical circuit.
47
They play a crucial role in transmitting electricity over long distances and are found in power distribution systems.
48
on to GFCIs or Ground Fault Circuit Interrupter.
49
These devices are designed to protect people from electrical shocks.
50
They monitor the current balance between the hot and neutral wires and quickly shut off the power when an imbalance, indicating a ground fault, is detected.
51
Next we have Voltage Drop.
52
A Voltage Drop is the reduction in voltage as electricity travels through a circuit.
53
It is a critical consideration for electricians when designing circuits to ensure that appliances receive the required voltage for proper operation.
54
Next up we have Ohm's law.
55
This states that the voltage across a conductor is directly proportional to the current flowing through it,
56
provided all physical conditions and temperature remain constant.
57
Ohm's law can be applied in numerous ways in our daily life, including electric heaters, kettles, fans, mobile chargers and fuses.
58
Next we have junction boxes.
59
These boxes are used to protect and connect electrical wires.
60
They serve as a secure enclosure for splices,
61
ensuring safety and organization in electrical installations.
62
Moving on to capacitors.
63
These components store and release electrical energy.
64
They have various applications including power factor correction, filtering and timing in electrical circuits.
65
Now what are these terms AC and DC?
66
Electric current flows in two ways, as an alternating current or AC or direct current DC.
67
The main difference between AC and DC lies in the direction in which the electrons flow.
68
In DC, the electrons flow steadily in a single direction,
69
while electrons keep switching directions going forward and backwards in AC.
70
Now let's discuss diodes.
71
Diodes allow current to flow in one direction while blocking it in another.
72
They are vital in rectifying AC voltage to DC and have numerous uses in electronics.
73
Our next term is current limiter.
74
These devices restrict the amount of current that can flow through a circuit.
75
Electricians use them to prevent excessive current, protecting sensitive components and devices.
76
Inverters convert DC or direct current into AC alternating current.
77
They are essential for powering appliances that require AC, such as most household devices.
78
And there you have it, our word list of essential terms for electricians.
79
Remember the complete word list is available in the video description for you.
80
If you found this lesson enjoyable and informative, why not like it and subscribe to my YouTube channel for lots more informative learning content.
81
here for a lesson on general tools in English, and click here for a lesson on car tools used in car maintenance.
82
That wraps up our lesson folks, so thanks for joining me today, and remember, keep learning English like a pro!
📺 同じチャンネル
B11
100 Medication English Phrases You Need to Know
Business EnglishUniversity StudentsWorking Adults
A23
Car Parts English Vocabulary | Master English for Car Parts Vocabulary in 6 Minutes!
TeensDaily ConversationHigh School Students
B21
25 Professional English Phrases for Healthcare Assistants | Medical English
Business EnglishWorking Adults
B14
Unlocking Architectural Marvels | Essential English Vocabulary Words for Buildings! #learnenglish
Business EnglishUniversity StudentsWorking Adults
C15
Learn 20 Professional Accounting English Terms
Business EnglishUniversity StudentsWorking Adults
✨ おすすめ動画
B22
159 文
Electrical Engineering Simply Explained
Business EnglishUniversity StudentsWorking Adults
B1100 文
8 Business English Phrases You Need to Know Now
Business EnglishWorking Adults
B12
57 文
Basic Engineering tools
Business EnglishUniversity StudentsWorking Adults
B12
72 文
A Day in the Life of an Electrician | Indeed
Business EnglishInterview EnglishHigh School Students
B11
49 文
Business English Vocabulary : VV 47 – Manufacturing & Production Process (1) | English Vocabulary
Business EnglishWorking Adults
B11
66 文
The Best Way to Improve Your English Vocabulary
Business EnglishUniversity StudentsWorking Adults
B11
151 文
Real English: Vocabulary to talk about real estate
Business EnglishUniversity StudentsWorking Adults
B21
241 文
Construction Safety Training Video // Over 40 Topics
Business EnglishWorking Adults
B21
241 文
How to Wire Outlets and Lights for Beginners - Basement Finishing Part 2 | Builds by Maz
Business EnglishWorking Adults
B13
31 文
Introduction to Networking | Network Fundamentals Part 1 (Revised)
Business EnglishUniversity StudentsWorking Adults
B11
267 文
شرح انجليزي: الوظائف والمهن ومعرض التوظيف | كورس أهم 5000 كلمة
Business EnglishInterview EnglishUniversity Students
このレッスンの語彙とスピーキングのポイント
この動画には、シャドーイング用の文が82文、単語が977語あります。 音声の長さは8:05です。 話す速さは1分あたり約121語で安定しており、シャドーイングしやすいペースです。 英語の頻出3,000語に含まれる単語は71%だけなので、語彙は難しめです。
この動画の重要語彙
動画に出てくるやや難しい単語15語を、発音と意味つきで紹介します。
- voltage /ˈvəʊltɪd͡ʒ/ (名詞) — 電圧. The difference in electrostatic potential between two points in space, especially between live and neutral conductors or the earth.
- wire /ˈwaɪɚ/ (名詞) — 針金, 線. Metal formed into a thin, even thread, now usually by being drawn through a hole in a steel die.
- lesson /ˈlɛs.ən/ (名詞) — 授業, 学科. A section of learning or teaching into which a wider learning content is divided.
- component /kəmˈpoʊ.nənt/ (名詞) — 部分. A smaller, self-contained part of a larger entity. Often refers to a manufactured object that is part of a larger device.
- conductor /kənˈdʌktɚ/ (名詞) — 指揮者. One who conducts or leads; a guide; a director.
- fuse /fjuːz/ (名詞) — 導火線. A wick or cord used to convey flame to gunpowder, a bomb, or similar explosive.
- shock /ʃɔk/ (名詞) — 衝撃, ショック. A sudden, heavy impact.
- connect /kəˈnɛkt/ (動詞) — 繋げる. To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object.
- pipe /ˈpaɪp/ (名詞) — 笛. A wind instrument consisting of a tube, often lined with holes to allow for adjustment in pitch, sounded by blowing into the tube.
- installation /ˌɪn.stəˈleɪ.ʃən/ (名詞) — インストール, 取り付け. An act of installing.
- dive /daɪv/ (動詞) — 潜る. To swim under water.
- aluminium /ˌæl.(j)uˈmɪn.i.əm/ (名詞) — アルミニウム, 軽銀. A light, silvery metal extracted from bauxite, and a chemical element (symbol Al) with an atomic number of 13.
- breaker /ˈbɹeɪkɚ/ (名詞) — 破壊者. Something that breaks (something else).
- occur /əˈkɜː/ (動詞) — 起こる, 起る. To happen or take place.
- sensitive /ˈsɛn.sɪt.ɪv/ (形容詞) — 敏感な. Having the faculty of sensation; pertaining to the senses.
注意したい発音
話し手はI'm, we'll, we'reなど、短縮形や弱形を5回使っています。聞こえたとおりの短い形で発音しましょう。
- 「sh」と「zh」の音: shock /ʃɔk/, crucial /ˈkɹuː.ʃəl/, installation /ˌɪn.stəˈleɪ.ʃən/, insulation /ˌɪnsəˈleɪʃən/, contrast /kənˈt(ʃ)ɹæst/
- 長い単語（アクセントの位置に注意）: electrical /ɪˈlɛktɹɪkəl/, electricity /ɪˌlɛkˈtɹɪsɪti/, installation /ˌɪn.stəˈleɪ.ʃən/, aluminium /ˌæl.(j)uˈmɪn.i.əm/, insulation /ˌɪnsəˈleɪʃən/
この動画での練習方法
- まず声を出さずに動画を最後まで聞き、知らない単語をメモします。
- 通常の速度で一文ずつシャドーイングし、話し手のリズムに合うまで繰り返します。
- 自分の声を録音して元の音声と比べます。voltage, wire, lessonなどの単語に特に注意しましょう。
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | can be measured · is measured · are found |
| 動詞 + -ing enjoy, keep, stop… + -ing — 後ろに-ing形が続く動詞 | keep switching · keep learning |
| 「will」の未来表現 will + 動詞 — その場の決定、約束、予測 | you'll know · will find · we'll get |
| 義務：must / have to / need to 何かが必要であることを伝える | need to be · must in |
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。