シャドーイング練習: NEW CUMMINS ZF 8 SPEED TEARDOWN - 動画で英語スピーキングを学ぶ
レッスンを作成中...
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Hey guys, Nick over here at Randy's.
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Today I'm going to be tearing down the new ZF 8 -speed power line transmission for you.
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Getting this up on the bench, it appears this thing is heavy and weighs all over 400 pounds just like the new 10 -speeds do.
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Also, it seems to be we're not using any dipsticks just like the ZFs and the 10 -speeds are currently not using.
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Damn, what is it with these manufacturers and these new plastic pans?
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There must be something I don't know.
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All right, pan off on the ZF 8 now.
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Looks like the filter's going to be integral to the pan
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on these like they are on all zf8 speeds i have to find something else to figure
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that out taking apart this valve body kind of makes me
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happy i can see all the bolts appear to be the
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same length that's not going to be a problem all right
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now it appears with the valve body out we're running a
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mechatronic system in these just kind of like the tecans and 8ls
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and 6l 90s computers solenoids all integrated into one assembly on
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this valve body digging into this pump cover it appears we're
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actually going to be able to remove this thing a lot easier than prying
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and pulling like a 68 cover she pops right out all
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right looks like on the pump cover on the zf8 they
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actually had to integrate a big bearing inside here to help hold that big converter they installed into this beast
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and just a little bit something different we're not used to
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here at randy's a remote chain driven pump they probably make a tool for this
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but it appears a good old six cell smack the stator
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trick gets this out real easy now digging into the meat
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and potatoes on this transmission we're looking at the b clutches
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here they seem to be pretty beefy like we're not going
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to have any issues with these failing in the future
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but it also seems like we have these anti -drag waverings
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in here to actually keep the clutches from dragging after they
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release getting even further into this to our p1 planetary it
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looks like it resembles all the other zf8 speeds we've seen before we're going to keep digging into this
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and see what else it looks like the input shaft looks
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identical we got a reluctor wheel in there she looks identical even our p2 planetaries look just the same
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so far everything resembles a normal zf8 speed next we're going to be pulling out this heavy c
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and d clutch drum now
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that we're going to start to disassemble this drum we're going to get to the e clutch drum
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and where we're going to start to notice some differences in
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how they do the eight speeds all right seems like for
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you guys this is going to be a good thing on your trucks
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unlike the 8 hp 90 and 95 and the hellcats
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that took about a thousand horsepower stock before you started tearing
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up this e -clutch drum they decided to upgrade it
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and make it still in this setup
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but what we're going to be starting to work on we're
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in the process of working on right now it's a new setup of frictions and stills
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so we can actually start adding some more holding capacity to
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both of these drums now we're going to start digging into both the c
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and e clutch drums and looking at the frictions
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and stills frictions look like they're going to hold quite a bit same with the stills
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but we know how you guys like more so we're going to find a way to add more
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as we start to get into the tail housing we're going to notice
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that it's a lot different than any of the other zf8 speeds we've seen where they integrate the tail housing
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and the main case all into one
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so it takes a little bit of different work to get this apart
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but we got it as we were disassembling this main drum we did notice
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that it is a lot thicker than all the other zf8 speeds out there on the road
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that are prone to braking on disassembly
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so they're trying to make everything hold a lot more torque
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in these trucks opening up our output carrier we're going to get into our d clutches here
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and i'm going to be quite honest i am fully surprised
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on how well they built these units with the zfa speed
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all torn down i have to tell you i am very
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impressed cummins decide to throw a transmission behind their power plant to actually hold up
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but we're going to make some things better for you guys stay tuned for what we have coming down the pipe .
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このレッスンの語彙とスピーキングのポイント
このスピーキングレッスンは、動画「NEW CUMMINS ZF 8 SPEED TEARDOWN」を教材にしています。 繰り返し出てくる語は次のとおりです：speed, drum, appear, clutch, digging。 この動画には、シャドーイング用の文が64文、単語が811語あります。 音声の長さは3:41です。 話す速さは速く、1分あたり約220語です。音のつながりや弱く発音される音が多くなります。 英語の頻出3,000語に含まれる単語は80%だけなので、語彙は難しめです。
この動画の重要語彙
動画に出てくる覚えておきたい単語15語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| drum 名詞 | /ˈdɹʌm/ | 鼓, 太鼓 |
| clutch 名詞 | /ˈklʌt͡ʃ/ | クラッチ |
| dig 動詞 | /dɪɡ/ | 掘る |
| tear 動詞 | /tɛɹ/ | 破る, 引き裂く |
| transmission 名詞 | /tɹænsˈmɪʃən/ | 転送, 伝送 |
| pump 名詞 | /pʌmp/ | ポンプ, 喞筒 |
| valve 名詞 | /ˈvælv/ | バルブ |
| friction 名詞 | /ˈfɹɪkʃən/ | 摩擦 |
| tail 名詞 | /ˈteɪ̯l/ | 尻尾, しっぽ |
| identical 形容詞 | /ɪˈdɛntɪkl̩/ | 同一の, そっくりの |
| resemble 動詞 | /ɹɪˈzɛmbəl/ | 似ている |
| planetary 形容詞 | /ˈplænɪˌtɛəri/ | 惑星の |
| trick 名詞 | /ˈtɹɪk/ | 欺き, 企み |
| thick 形容詞 | /θɪk/ | 太い, 厚い |
| output 名詞 | /ˈaʊtpʊt/ | 出力 |
動画に出てくる句動詞
| 単語 | 意味 |
|---|---|
| come down 動詞 | 降りる |
注意したい発音
話し手はwe're, I'm, they'reなど、短縮形や弱形を25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: transmission /tɹænsˈmɪʃən/, friction /ˈfɹɪkʃən/, shaft /ˈʃɑːft/
- 長い単語（アクセントの位置に注意）: planetary /ˈplænɪˌtɛəri/, manufacturer /ˌmænjʊˈfæktʃəɹə/, disassemble /dɪs.əˈsɛm.bəl/, disassembly /dɪsəˈsɛmbli/
日本語話者が苦手な音：
- /r/ と /l/ の区別 — /l/ は舌先を歯茎につけ、/r/ はどこにもつけない: resemble /ɹɪˈzɛmbəl/, planetary /ˈplænɪˌtɛəri/, integral /ˈɪntəɡɹəl/
- /v/ — /b/ にならないように、上の歯を下唇に当てる: valve /ˈvælv/, converter /kənˈvɜɹtɜɹ/
- /f/ — 「フ」ではなく、上の歯と下唇で出す: friction /ˈfɹɪkʃən/, manufacturer /ˌmænjʊˈfæktʃəɹə/, shaft /ˈʃɑːft/, beefy /ˈbiːfi/
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。
- まず0.75倍速で一文ずつシャドーイングし、慣れてきたら通常の速度に戻します。
- 自分の声を録音して元の音声と比べます。drum, clutch, digなどの単語に特に注意しましょう。
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。