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すべてのテーマ教育・学校仕事・経済テクノロジー社会・文化環境健康・生活人間関係・コミュニケーションお金・消費

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英検1級要約環境

都市が発展するにつれて、自然の地面は道路、駐車場、歩道、建物などに次第に覆われていきます。

As cities grow, natural ground is increasingly covered by roads, parking areas, sidewalks, and buildings. Unlike soil and vegetation, these surfaces prevent much of the rainwater from soaking into the ground. Instead, water flows rapidly across streets and into drainage networks. Many of these systems were built decades ago, when urban populations were smaller and severe storms were less common. As a result, they may struggle to handle the large volumes of runoff produced during periods of intense rainfall.

90〜110語 · プリントあり

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英検1級要約テクノロジー

クラウドコンピューティング、人工知能、オンラインサービスの急速な発展により、世界各地でデータセンターの建設が進んでいます。

The rapid growth of cloud computing, artificial intelligence, and online services has led to the construction of more data centers around the world. These facilities contain large numbers of servers that generate significant amounts of heat while processing and storing information. To prevent equipment from overheating, many data centers rely on cooling systems that use water. In some cases, water is circulated through cooling equipment and then released as vapor. Although each facility may use different technology, large centers can require substantial quantities of water every day, especially in warm regions where cooling demand is high.

90〜110語 · プリントあり

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英検1級要約健康・生活

臓器移植は、心臓、腎臓、肝臓などの臓器が正常に機能しなくなった患者の命を救うことができます。

Organ transplants can save the lives of patients whose hearts, kidneys, livers, or other organs no longer function properly. However, the number of organs available for transplantation remains far below the number of people who need them. In many countries, individuals who wish to donate their organs after death must officially register their consent in advance. This system depends on people taking action while they are healthy, yet many never complete the necessary process. Some may support organ donation in principle but postpone registration or simply be unaware of how to do it. As a result, potentially suitable organs may not become available after death.

90〜110語 · プリントあり

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英検1級要約環境

よりクリーンなエネルギーへの移行によって、電気自動車、バッテリー、再生可能エネルギー設備に使われる鉱物の需要が増加しています。

The transition to cleaner energy has increased demand for minerals used in electric vehicles, batteries, and renewable-energy equipment. Metals such as nickel and cobalt are important for many of these technologies, but much of the world's supply currently comes from mines on land. As demand rises, companies and governments are looking for additional sources. One possibility is the deep ocean floor, where mineral-rich rocks have formed over extremely long periods. Supporters of deep-sea mining argue that extracting these deposits could reduce pressure on terrestrial mines and help secure supplies of materials needed for new energy technologies.

90〜110語 · プリントあり

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英検1級要約テクノロジー

衛星を利用した通信、ナビゲーション、地球観測への需要が高まったことで、企業や政府はますます多くの小型衛星を軌道上に打ち上げるようになっています。

The growing demand for satellite-based communication, navigation, and Earth observation has led companies and governments to place increasing numbers of small satellites into orbit. Some projects involve launching hundreds or even thousands of satellites as part of a single network. Although these systems can expand access to digital services and provide more frequent information about conditions on Earth, they also make the space around the planet more crowded. Satellites that stop working may remain in orbit for years, while collisions and equipment failures can create fragments that continue traveling at extremely high speeds.

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英検1級要約環境

温室効果ガスの排出量を減らそうとする各国政府は、再生可能エネルギーの利用や、より効率的な生産方法を推進してきました。

Governments seeking to reduce greenhouse-gas emissions have encouraged the use of renewable energy and more efficient production methods. However, some industries are difficult to decarbonize completely. Steel and cement production, for example, can release large amounts of carbon dioxide not only from the energy they consume but also from chemical reactions that are central to manufacturing. As a result, even factories that replace fossil-fuel electricity with cleaner sources may continue producing substantial emissions. This is a particular concern because such materials are widely used in buildings, roads, machinery, and other parts of modern economies.

90〜110語 · プリントあり

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英検1級要約環境

世界の多くの地域では、人口増加や繰り返される干ばつによって、淡水資源への圧力が高まっています。

In many parts of the world, growing populations and repeated droughts are putting increasing pressure on freshwater supplies. Rivers, lakes, and underground sources have traditionally provided most of the water used by households, farms, and businesses. In some regions, however, these sources can no longer meet demand throughout the year. As supplies become less reliable, competition for limited water intensifies among different users. During prolonged dry periods, authorities may have to decide whether scarce resources should be directed toward homes, agriculture, or industry, making water management an increasingly difficult issue for governments and local communities alike.

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英検1級要約社会・文化

一部の国では、厳しい量刑政策や高い再犯率のために、刑務所の収容者数が着実に増加しています。

In some countries, prison populations have risen steadily as a result of strict sentencing policies and high rates of repeat offending. Many correctional facilities now hold far more people than they were originally designed to accommodate. When too many inmates are confined in limited space, prisons may struggle to provide adequate medical care, education, and rehabilitation programs. Staff members must also supervise larger numbers of prisoners, increasing workloads and making it more difficult to respond quickly to problems. As a result, tension inside overcrowded institutions can rise, creating a more stressful environment for both inmates and employees.

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英検1級要約環境

気候変動と人口増加によって、農家はますます厳しい環境の中で、より多くの食料を生産することを求められています。

Climate change and population growth are increasing pressure on farmers to produce more food under increasingly difficult conditions. Droughts are becoming more frequent in some regions, while plant diseases can spread rapidly and damage large areas of crops. Farmers therefore need varieties that can continue producing high yields despite such stresses. Traditional breeding has long been used to improve useful characteristics, but developing new varieties in this way can take many years. As environmental conditions change quickly, conventional methods may not always produce suitable crops fast enough to meet new agricultural challenges.

90〜110語 · プリントあり

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英検1級要約環境

PFASは、防水性のある素材、工業用コーティング、消火用泡剤などの製品に数十年にわたって使用されてきた、多数の化学物質の総称です。

PFAS are a large group of chemicals that have been used for decades in products such as water-resistant materials, industrial coatings, and firefighting foams. Because these substances break down very slowly, they can remain in the environment for long periods after their release. In some areas, PFAS from factories, military bases, and training facilities have seeped into nearby soil, groundwater, and rivers. Once these chemicals enter water systems, they can spread beyond the original source and contaminate supplies used for drinking. This means communities may continue to face pollution even after the activities that caused it have ended.

90〜110語 · プリントあり

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英検1級要約健康・生活

医療の進歩によって、深刻な病気を抱える患者の生活を大きく改善できる治療法が生まれています。

Advances in medicine have produced treatments that can greatly improve the lives of patients with serious diseases. Gene therapies and new cancer drugs, for example, may offer benefits that were previously impossible, but some of these medicines cost extremely large amounts for each patient. When public health systems agree to cover such treatments, they must pay for them from budgets that are already used for many other forms of care. As more expensive medicines become available, governments face increasing difficulty deciding how limited health-care funds should be distributed without weakening other parts of the medical system.

90〜110語 · プリントあり

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英検1級要約環境

かつて、多くのダムが洪水を防ぎ、発電を行い、地域の水供給を支えるために河川に建設されました。

Many dams were built on rivers in the past to control floods, generate electricity, and support local water supplies. As these structures age, however, the cost of inspecting, repairing, and maintaining them can rise significantly. Some older dams no longer provide the same economic benefits they once did, especially when their power output or other uses have declined. At the same time, dams can block fish from reaching spawning areas and interrupt the natural movement of sediment downstream, gradually changing the physical and ecological character of rivers.

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英検1級要約仕事・経済

多国籍企業は複数の国で事業を行っており、法人税率や税制の違いを利用できる場合があります。

Multinational companies operate across several countries and can take advantage of differences in corporate tax rates and tax rules. In some cases, firms arrange transactions within their own corporate groups so that profits are reported in jurisdictions where taxes are lower, even when much of the underlying business activity takes place elsewhere. Although these practices may comply with existing laws, they can significantly reduce the amount of tax paid in countries where companies employ workers, sell products, or use public infrastructure. As international business has expanded, concerns about this form of profit shifting have grown.

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英検1級要約環境

大型貨物船は、航海中に船体を安定させるため追加の重量が必要な場合、専用のタンクに海水を取り込むことがあります。

Large cargo ships often take seawater into special tanks when they need additional weight to remain stable during a voyage. This ballast water is usually collected near the port of departure and released when cargo is loaded or when the vessel reaches another destination. Along with the water, however, ships can unintentionally take in tiny marine organisms, including larvae and plankton. When the water is discharged in a distant region, some of these organisms may survive and establish populations in an environment where they did not previously exist. Growing international shipping has therefore increased opportunities for species to cross natural geographic barriers.

90〜110語 · プリントあり

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英検1級要約お金・消費

銀行は、預けられたお金をすべて現金として保管しているわけではありません。

Banks do not keep all deposited money in cash. Instead, they use part of those funds to make loans to households and businesses, while retaining enough liquid assets to meet normal withdrawals. This system supports economic activity, but it can create problems when confidence in a bank suddenly weakens. If rumors about financial trouble spread, many depositors may try to withdraw their money at the same time. Even a bank that is otherwise sound may then struggle to provide enough cash immediately, because much of its money is tied up in loans and other assets.

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英検1級要約仕事・経済

食料需要の増加や食料安全保障への懸念の高まりを背景に、企業や政府が海外で広大な農地を取得する動きが進んでいます。

Rising demand for food and growing concerns about food security have encouraged companies and governments to acquire large areas of farmland abroad. Such deals may involve either purchasing land outright or leasing it for many years in order to secure agricultural production. Supporters argue that foreign investment can bring capital, technology, and infrastructure to underdeveloped farming regions. However, problems can arise where land rights are poorly documented. People who have farmed or grazed animals on the same land for generations may have no formal title, making it possible for them to lose access without meaningful consultation or adequate compensation.

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英検1級要約環境

一部の国では、既存の原子力発電所を当初予定されていた期間を超えて運転し続けることが検討されています。

Some countries are considering keeping existing nuclear power plants in operation beyond the periods originally planned. One reason is the need to meet electricity demand without increasing greenhouse-gas emissions from fossil fuels. Extending the life of current plants can also avoid the time and expense required to build replacement generating capacity. However, reactors, pipes, and other components are exposed to heat, radiation, and pressure for many years. As these materials age, deterioration can become more important, making regular inspections and the replacement of worn equipment essential for maintaining safe operation.

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英検1級要約仕事・経済

現代の企業は、さまざまな国にある供給業者から原材料、部品、完成品を調達することがよくあります。

Modern companies often obtain raw materials, components, and finished goods from suppliers located in many different countries. These arrangements can lower costs and give firms access to specialized producers, but they also create long and complicated supply chains. A company selling the final product may have direct contact with only a small number of major suppliers, while those firms rely on subcontractors and farms further down the chain. If forced labor is used at these earlier stages, the company whose brand appears on the product may have little information about the conditions under which materials were produced.

90〜110語 · プリントあり

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英検1級要約お金・消費

洪水、山火事、その他の自然災害が頻繁に発生する地域では、保険会社が住宅被害に対して支払う保険金が増えています。

In regions frequently affected by floods, wildfires, and other natural disasters, insurance companies are paying out larger sums for damage to homes. As losses rise, insurers may conclude that future claims in certain areas will be too costly to cover at existing prices. They can respond by sharply increasing premiums, reducing the amount of coverage offered, or refusing to issue new policies in places considered especially risky. For homeowners, this means that insurance may become unaffordable or unavailable even when they still need protection against serious property damage.

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英検1級要約環境

泥炭地は、水分を多く含む土地で、完全には分解されていない植物由来の物質が長い年月をかけて蓄積した場所です。

Peatlands are naturally water-rich areas where partially decomposed plant material has accumulated over long periods. In some regions, however, these lands have been drained so that they can be used for farming or grazing. Removing water makes the ground easier to cultivate, but it also exposes peat to air. Once dried, the organic material begins to break down more rapidly and releases carbon that had been stored in the soil. Continued drainage can also cause the land surface to sink and make dry peat more vulnerable to fire, creating problems that may become more severe over time.

90〜110語 · プリントあり

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英検1級要約環境

リンは作物の生産に欠かせない栄養素であり、現代の農業は、限られた地域で採掘されるリン鉱石に大きく依存しています。

Phosphorus is an essential nutrient for crop production, and modern agriculture depends heavily on phosphate rock mined from a limited number of regions. Farmers use phosphorus fertilizers to maintain soil fertility and achieve high yields, but this dependence creates a vulnerability in the global food system. If demand rises sharply or mining and transport are disrupted in major producing areas, the price and availability of phosphate rock can become unstable. Countries that import most of their fertilizer materials may be especially exposed because they have few alternative sources when international supplies tighten.

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英検1級要約環境

航空機が高高度を飛行すると、適切な大気条件のもとでは、排気に含まれる水蒸気が凍結し、長時間残る飛行機雲が発生することがあります。

Aircraft flying at high altitudes can sometimes produce long-lasting condensation trails when water vapor in their exhaust freezes under suitable atmospheric conditions. These trails, known as contrails, may spread and persist for hours instead of disappearing quickly. Although they look like thin clouds, their climate effect can be significant because they can reduce the amount of heat escaping from Earth's atmosphere. As a result, aviation can contribute to warming not only through carbon dioxide emissions but also through these non-CO2 effects, which may increase the sector's overall influence on the climate and complicate efforts to measure and reduce aviation-related warming.

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英検1級要約テクノロジー

生成AIシステムは、膨大な量の文章、画像、その他のデジタル資料を分析することで開発されています。

Generative AI systems are developed by analyzing enormous collections of text, images, and other digital material. Much of this content is gathered from the Internet, where copyrighted works may be included alongside material that is freely available. In some cases, creators may not know that their work has been used for training or may not have given clear permission for such use. This has raised concerns that writers, artists, and other rights holders are losing control over how their creations are used in the development of commercial AI systems.

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英検1級要約環境

国際貿易の急速な拡大に伴い、世界の海を航行する大型船の数が増えています。

International trade has expanded rapidly, leading to more large ships traveling across the world's oceans. These vessels generate continuous low-frequency noise from engines, propellers, and other machinery, and the sound can travel long distances underwater. For many marine animals, especially whales and other species that depend heavily on sound, this creates a growing problem. They use acoustic signals to communicate, navigate, locate food, and maintain contact with others. When human-made noise becomes intense or persistent, these important signals may be masked, making it harder for animals to detect information they rely on. In heavily traveled waters, repeated exposure can leave few quiet periods for normal behavior.

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