跟读练习: Step-by-step Demonstration: High-Voltage Battery Repair - 通过视频学习英语口语
正在创建课程...
1
We're here at Precision Auto Service in Langley, BC, where a customer has brought in a 2016 Fiat 500E for repair.
2
The car was towed all the way from Vernon, BC, over 400 kilometers away from the shop.
3
The customer reported that the car would not go into ready mode.
4
The dealership had told the customer
5
that the entire battery pack would have to be replaced at a cost of around $20 ,000, and that was if a replacement could be found.
6
Precision Auto's diagnosis revealed a fault within the battery pack control module.
7
Replacement BPCMs are not readily available either, but Precision Auto is well connected and was able to source one from a company in Europe.
8
After the replacement module arrived, it was time to perform the repair.
9
The first step is to disconnect the 12 volt battery.
10
Yes, most EVs have a 12 volt battery to run accessories like lights, wipers and infotainment systems.
11
Next, the high voltage service plug is removed.
12
On this model it is located under the rear seat.
13
The service plug is like a giant fuse, this one is 350 amps.
14
Once removed, the high voltage is isolated to the inside of the battery pack, making it safe to work on the vehicle.
15
The battery pack is removed from under the car, so the car is lifted with a hoist.
16
On the Fiat, the battery pack extends from just rear of the front wheels almost to the back of the car.
17
The rearward part is where the fuel tank would be on a gas -powered car.
18
Several metal protective covers are removed.
19
This exposes the main high voltage cables, which are colored orange, and the cooling system hoses.
20
This battery is liquid cooled.
21
Even though the high voltage battery has been isolated, the technician puts on rubber electrical safety gloves before proceeding with the next steps.
22
To ensure there are no pinholes, the gloves are tested before each use.
23
This is done by rolling up the open ends of the gloves, pressurizing the air inside.
24
Then the gloves are held to the cheek to check for air leaks.
25
Once the gloves have passed the test, a pair of work over gloves are worn over them.
26
Now the technician is ready to disconnect the electrical cables from the battery pack, starting with the main line and then the secondary line.
27
He places a catchment vessel on a scissor lift table directly beneath the coolant hoses,
28
clamps the hoses, and then loosens the clamps where the hoses connect to the fittings on the battery pack housing.
29
The coolant drains into the catchment vessel.
30
to prevent further spillage while the battery pack is being removed he places caps on the coolant fittings
31
because the battery pack goes over the top of the rear axle the complete rear axle and suspension is removed.
32
When the battery pack is removed, it is going to drastically change the weight distribution of the vehicle,
33
so the technician secures the front and rear of the vehicle with supports beforehand.
34
The technician places the scissor lift table beneath the battery and raises it until it contacts the bottom of the battery case.
35
Now the main bolts can be removed
36
With all the bolts removed, the table and battery pack are lowered together.
37
This vehicle had a considerable amount of mud caked on its underside, so the battery pack cover must be cleaned before it can be opened.
38
No debris should be allowed to contaminate the interior of the battery case.
39
The technician uses a shop vac and compressed air to remove loose mud and dust.
40
Several dozen bolts hold the top and bottom halves of the battery pack case together.
41
These are removed.
42
The top half of the case can now be lifted off, exposing the components of the battery
43
The technician conducts some tests, verifying voltage readings to ensure there are no other problems.
44
Satisfied with the results, he disconnects the cables from the connectors on the BPC -M and removes the module.
45
He then installs the replacement module.
46
The battery pack is now ready to be reinstalled in the vehicle.
47
When an electric vehicle's high voltage battery malfunctions, it does not always mean that the entire battery pack must be replaced.
48
The most common reason a complete replacement will be recommended is
49
because currently there are very few businesses that possess the resources necessary to perform battery pack diagnosis and repair.
50
It is much easier to simply swap out the entire battery pack
51
that said the price of a replacement battery pack is usually prohibitive
52
and in many cases availability is scarce this will change over
53
time as with any new consumer product prices will come down as demand
54
and production increase this will be true not only for complete battery packs
55
but also for the internal components precision auto service is presently one of very few repair facilities
56
that have invested in the tools, equipment and training necessary to diagnose and repair high voltage batteries and other EV components.
57
This too will change as shops start to see a larger portion of their customer base driving electric vehicles.
✨ 推荐视频
B21
133 句
Finally a Mini Cooper?! vs Coolant Spill🥲 // Nürburgring
Daily ConversationWorking Adults
C12
40 句
Inside the Relay Controlled SF6 Circuit Breaker: Preventing Arcs and Ensuring Safety
Daily ConversationUniversity StudentsWorking Adults
B11
38 句
How to Unlock Phone with a Broken Touch Screen and Recover Data
Daily ConversationWorking Adults
B22
22 句
Ferrari's controversial electric Luce arrives in Australia | 7NEWS
Daily ConversationUniversity StudentsWorking Adults
B21
650 句
Abandoned My Van Home in the Middle Of the Night!
Daily ConversationWorking Adults
B24
31 句
What happens to old electronic devices when you upgrade?
Business EnglishDaily ConversationUniversity Students
B21
109 句
How ELECTRICITY works - working principle
Daily ConversationUniversity StudentsWorking Adults
B21
126 句
What Can a $50 Laptop Do?!? (2026)
Daily ConversationWorking Adults
B211
22 句
3 Levels of Car Theft
American AccentDaily ConversationUniversity StudentsWorking Adults
C133 句
Well Pump Current #electrical #motorcontrol
Daily ConversationWorking Adults
C16
307 句
Broken Bosch Drill. How to repair a Bosch GBH 2-26 SDS Drill.
Daily ConversationWorking Adults
B21
45 句
Creating Iron Man suit. Full workflow by @AlexLab. Real life Iron Man exosuit with a box of scraps)
Daily ConversationWorking Adults
本课的词汇与口语要点
这段视频共有 57 个句子、852 个单词可供跟读。 讲话部分时长为 8:46。 说话人语速较慢，每分钟约 97 个词，你有足够的时间模仿每一个音。 只有 77% 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 15 个值得学习的单词，附发音和释义：
| 单词 | 发音 | 释义 |
|---|---|---|
| voltage 名词 | /ˈvəʊltɪd͡ʒ/ | 電壓 /电压 |
| glove 名词 | /ɡlʌv/ | 手套 |
| technician 名词 | /tɛkˈnɪʃən/ | 技術員 /技术员 |
| repair 动词 | /ˈɹiːpɛɚ/ | 修理 |
| precision 名词 | /pɹɪˈsɪʒ.ən/ | 精度, 準確度 /准确度 |
| module 名词 | /ˈmɑd͡ʒul/ | 模塊 /模块 |
| hose 名词 | /hoʊz/ | 軟管 /软管, 水龍帶 /水龙带 |
| component 名词 | /kəmˈpoʊ.nənt/ | 元件, 部件 |
| bolt 名词 | /boʊlt/ | 螺栓 |
| automobile 名词 | /ˈɔː.tə.məˌbil/ | 汽車 /汽车, 車 /车 |
| connect 动词 | /kəˈnɛkt/ | 連接 /连接 |
| vessel 名词 | /ˈvɛsəl/ | 船隻 /船只, 船 |
| diagnosis 名词 | /daɪəɡˈnəʊsɪs/ | 診斷 /诊断 |
| plug 名词 | /plʌɡ/ | 插頭 /插头 |
| fitting 名词 | /ˈfɪtɪŋ/ | 配件 |
视频中出现的短语动词
| 单词 | 释义 |
|---|---|
| come down 动词 | 下來 /下来, 降 |
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 | was towed · be replaced · is removed |
| 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 brought · has been isolated · have passed |
需要注意的发音
- “sh” 和 “zh” 音: technician /tɛkˈnɪʃən/, precision /pɹɪˈsɪʒ.ən/, suspension /səˈspɛnʃən/, dealership /ˈdiːləʃɪp/, malfunction /ˌmælˈfʌŋk.ʃən/
- 长单词——注意重音位置: automobile /ˈɔː.tə.məˌbil/, electrical /ɪˈlɛktɹɪkəl/, considerable /kənˈsɪdəɹəbl̩/, availability /əˌveɪ.ləˈbɪl.ɪ.ti/, accessory /əkˈsɛs.(ə.)ɹi/
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 voltage, glove, technician 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。