シャドーイング練習: How An Oil Tanker Works And Designed - 動画で英語スピーキングを学ぶ
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an oil tanker is a ship designed for the bulk transport of oil
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or its products there are two basic types of oil tankers crude tankers
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and product tankers crude tankers move large quantities of unrefined crude oil from its point of extraction to refineries.
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Product tankers, generally much smaller, are designed to move refined products from refineries to points near consuming markets.
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The size classes range from inland or coastal tankers to the ultra -large crude carriers.
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In this video, we are focusing on an ultra -large crude tanker.
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Let's take a closer look at the main parts of this vessel.
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Pipeline systems are used to load and discharge oil, water, gas, and many other purposes.
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There is a helicopter landing pad.
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Cranes are used for transporting heavy equipment on and off the ship.
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Mast risers are connected to the cargo tanks below.
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They are designed to release pressure that builds up inside the cargo tanks during the loading or unloading of oil.
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The accommodation area is where the crew members stay, eat, and sleep.
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This is the control room.
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Emergency escape boats are used for the crew members to escape in life -threatening situations.
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Now let's take a look inside the hull.
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The oil cargo tanks store crude oil for transportation.
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Water ballast tanks provide stability for the vessel.
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In the aft of the vessel, there are heavy fuel oil and marine gas oil tanks that are used to power the ship.
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a sludge tank stores waste from the treatment system there is
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also a freshwater tank in between all these tanks of different
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types of liquid there are empty spaces called the cofferdum and down here is the engine room this is the pump room
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The crew working on this gigantic vessel can number around 30 people.
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Not all oil tankers have the exact same design.
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Many ships might have parts located in different spots, but in this animation, this is the basic design principle.
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A large crude oil tanker has multiple oil cargo tanks, primarily to avoid free surface effects.
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Sometimes, the sea can be rough, just like in this scenario.
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If an oil tanker has only one giant tank to carry oil cargo, it will face free surface effect.
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When the liquid inside a tank moves from side to side, it generates forces that impact the side of the hull.
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If the impact to one side of the hull is too strong, it can cause the ship to capsize.
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To solve this problem, oil tankers have multiple smaller tanks.
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When the liquid moves, the impact is divided into smaller sections, reducing the impact on one side of the hull.
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This provides more stability for the vessel.
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All oil tankers with a length above 120 meters are required to be double hulled.
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The double hull is designed to protect the oil cargo tanks from external damages.
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In a single -hulled ship, if the hull is shredded or cracked by any external impacts, it can result in oil leakage into the ocean,
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endangering marine life, and polluting the environment.
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The space between the hull and oil cargo tanks are used as water ballast tanks.
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When not carrying oil, the tank doesn't have enough weight to counter the buoyancy and will easily be moved by the waves.
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Without stability, it will be difficult for crew members to work and live. To be well stabilized,
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the bottom part of the vessel needs to be submerged under the water by filling the water ballast tanks. When oil is loaded,
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the ballast tank will discharge its water back to the sea to Thank you keep the ship from being too heavily loaded.
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All ships are required to have a water treatment system.
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It is important because when a ship pumps seawater into the ballast tanks from one location and carries it to another location,
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it might potentially bring unwanted microorganisms and bacteria.
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Before discharging water back to the sea in a new location, the water needs to be treated to kill all the harmful bacteria.
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Copherdom.
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It is a space which is used to separate different liquid tanks of different types.
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When two tanks of different liquid types share the same wall, and if there is a crack or leak, two types of liquid will end up spilled out and mixing with each other.
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That's why with the Copherdom separating two tanks apart, it creates a space for fixing the leak without contaminating the
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other tank let's take a look at how oil is loaded into the cargo tanks
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when loading oil weight distribution is very important to consider
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if weight distribution is uneven it can result in an unwanted accident for example
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if there is too much weight on one side the vessel
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will lose its balance to avoid this accident oil has to
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be loaded evenly each time there is a jungle of pipes here
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so let's simplify it
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and focus on the oil loading pipes only this pipeline is used to load
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and discharge oil in and out of the cargo tank this part is called a manifold
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and oil enters here a pump is used to push the
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oil through a bell mouth where the oil comes out into
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the tanks from the bottom to the top for example in
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this model there are 15 oil cargo tanks The first pipeline will load oil into these five tanks to ensure
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that the weight is evenly distributed.
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The second pipe will load oil into these five tanks, and the third pipe will load oil into the last five tanks.
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Three sections represented by three different colors for easy view in this animation.
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In reality, crude oil is black.
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With this design, it doesn't matter which pipeline is used to load
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or unload oil first the weight will still be distributed evenly.
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Oil cargo tanks are also equipped with heating coils to reduce viscosity for easy pumping.
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Oil tankers use a device called loading arms to load or discharge oil.
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During offshore oil loading the tanker receives oil directly from the subsea pipeline using a buoy and floating hoses.
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If an oil tanker is too large to get close to a dock, it will transfer the oil to a smaller tanker to carry it to the dock.
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この動画で身につく英語スピーキングのスキル
この動画を使った英語スピーキング練習では、専門用語の発音や長文のリズム、説明的な表現の使い方をマスターできます。「crude tanker」「double hull」などの技術用語を自然に発音し、「When the liquid moves, the impact is divided...」のような複文をスムーズに話す能力も向上します。さらに、説明的な文章の構成を学び、実際の会話やプレゼンテーションで使えるスキルを養いましょう。
聞き取りに注意すべき発音・リンキング
動画の中には、自然な英語の発音パターンがたくさんあります。例えば、「product tankers」の「tankers」は末尾の「s」が軽く発音され、「pump room」は「pump」と「room」がリンキングされて「pumroom」のように聞こえます。また、「free surface effect」の「free」と「surface」の間には弱いリンクがあり、「emergency escape boats」の「escape」は「es cape」ではなく「i skeip」のように発音されることがあります。これらのリンキングやリダクションを聞き取り、真似ることで、ネイティブのような流れるような発音が身につきます。
ネイティブのように話すコツ：リズムとアクセント
ネイティブスピーカーの話し方の秘密はリズムとアクセントにあります。この動画のスピーカーは、重要な単語にアクセントを置き、文の流れを自然に保っています。例えば、「The accommodation area is where the crew members stay」では、「accommodation area」と「crew members」にアクセントがあり、他の単語は軽く流します。また、長い文でも「In a single-hulled ship, if the hull is shredded...」のように、節ごとにポーズを入れることで、リズムを保っています。shadow speakの練習では、このリズムとアクセントを真似ることが重要です。shadowing siteを使って、何度も繰り返し練習し、自分の話し方に取り入れましょう。
英語スピーキング練習には、継続的な努力が必要ですが、この動画を使ったshadowing practiceで、確実に進歩できます。ネイティブの発音やリズムを真似ることで、自信を持って英語を話すことができるようになります！
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。