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英検1級要約テクノロジー

世界の広い地域に高速インターネットなどのサービスを提供するため、何千もの小型衛星が地球低軌道に投入されています。

Thousands of small satellites are being placed into low Earth orbit to provide services such as high-speed internet to large parts of the world. Because these satellites travel relatively close to Earth, they can appear bright when they reflect sunlight, especially shortly after sunset or before sunrise. As the number of satellites increases, more of them may pass through the field of view of ground-based telescopes. Their movement can leave bright streaks across astronomical images, sometimes covering parts of the sky that scientists are trying to study.

90〜110語 · プリントあり

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英検1級要約環境

漁網、わな、その他の漁具は、嵐、事故、設備の故障などによって海で失われることがあります。

Fishing nets, traps, and other gear are sometimes lost at sea because of storms, accidents, or equipment failure. Once separated from their owners, these items may continue functioning for months or even years. Fish, seabirds, turtles, and other marine animals can become trapped in abandoned gear even though no fisher is present to collect the catch. Because the equipment is no longer being monitored, animals that are caught may die and remain inside, attracting additional creatures and allowing the cycle to continue. This unintended capture is commonly known as ghost fishing.

90〜110語 · プリントあり

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英検1級要約環境

魚介類への需要の高まりを背景に、沿岸海域や河川では大規模な魚類養殖が拡大しています。

Growing demand for seafood has encouraged the expansion of large-scale fish farming in coastal waters and rivers. Aquaculture can provide a stable supply of fish without relying entirely on wild stocks, but farms must keep large numbers of animals within cages, ponds, or other enclosed facilities. Storms, floods, or structural failures can damage these systems and allow farmed fish to escape into surrounding waters. Once outside, they may spread over wide areas and come into contact with wild populations that evolved under local environmental conditions.

90〜110語 · プリントあり

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英検1級要約環境

人工照明は、安全や経済活動を支えるため、都市、道路沿い、商業地域などで夜間に広く使用されています。

Artificial lighting is widely used at night in cities, along roads, and around commercial areas to support safety and economic activity. Streetlights, illuminated signs, and building lights can help people travel and work after dark, but much of this light is stronger than necessary or directed where it is not needed. Light that shines upward or spreads beyond its intended area can brighten the night sky over a wide region. As urban areas expand, places that once experienced natural darkness may remain illuminated throughout the night, changing environmental conditions that many species have depended on for generations.

90〜110語 · プリントあり

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英検1級要約健康・生活

現代の食品は、消費者の手に届くまでに、長く複雑な国際的サプライチェーンを通ることがよくあります。

Modern food products often pass through long and complex international supply chains before reaching consumers. Ingredients may be grown, processed, blended, and packaged in several different countries, making it difficult for buyers to know exactly where each component came from or what it contains. This lack of visibility can create opportunities for food fraud. Producers or suppliers seeking higher profits may substitute cheaper ingredients for more expensive ones or add undeclared substances while continuing to sell the product under its original label. These practices may be difficult to detect through appearance alone.

90〜110語 · プリントあり

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英検1級要約環境

気温の上昇や生活水準の向上に伴い、エアコンや冷蔵設備は世界中でますます普及しています。

Air conditioners and refrigeration systems are becoming more common around the world as temperatures rise and living standards improve. These technologies help people remain comfortable and protect food, medicines, and other products that require cooling. However, many cooling systems depend on chemical refrigerants that can escape during normal use, maintenance, or disposal. Some of these substances have a much stronger warming effect than carbon dioxide when released into the atmosphere. Although only relatively small amounts may leak from each unit, the rapid growth in cooling equipment means that total emissions could become increasingly important.

90〜110語 · プリントあり

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英検1級要約健康・生活

航空需要の増加により、大都市の近くにある多くの空港では、早朝や深夜にも航空便が運航されるようになっています。

Growing demand for air travel has led many airports near major cities to operate flights early in the morning and late at night. Extending operating hours can help airlines use aircraft more efficiently and provide passengers with a wider range of departure and arrival times. However, airports are often surrounded by residential areas, and people living nearby may be exposed repeatedly to the sound of aircraft taking off and landing. Noise can be especially disruptive at night, when even brief periods of loud sound may interrupt sleep.

90〜110語 · プリントあり

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英検1級要約環境

大規模な衣料品生産では、さまざまな色の生地を作るために、大量の水や化学物質を必要とすることがよくあります。

Large-scale clothing production often requires substantial amounts of water and chemicals to create fabrics in many different colors. During dyeing, water is used to carry pigments and other substances through the material, and large volumes of wastewater are produced afterward. If this wastewater is discharged without adequate treatment, dyes and other chemicals can enter nearby rivers and gradually accumulate in the aquatic environment. Because some of these substances break down slowly, pollution may persist even after a factory reduces its discharges.

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

子どもたちは、動画、交流機能、ゲーム、その他のデジタルサービスを提供するオンラインプラットフォームで、ますます多くの時間を過ごすようになっています。

Children are spending increasing amounts of time on online platforms that offer videos, social interaction, games, and other digital services. Many of these services include material or features that are not suitable for younger users, so companies often set minimum-age requirements. However, these rules are frequently based on users simply entering their date of birth or confirming that they are old enough. Because such information is easy to falsify, children may gain access to services or functions that were intended only for older users.

90〜110語 · プリントあり

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英検1級要約環境

道路網の拡大によって、かつてつながっていた森林や草原が、より小さく孤立した地域へと分断されています。

Expanding road networks are dividing forests and grasslands that were once connected into smaller and more isolated areas. Highways can form major barriers for wildlife because animals often need to move between habitats to find food, water, or breeding partners. When they attempt to cross busy roads, they may be struck by vehicles. Some species instead avoid roads completely, reducing the area they can use and limiting access to important resources. As development continues, these effects can separate animal populations that previously interacted more freely.

90〜110語 · プリントあり

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英検1級要約社会・文化

人口減少や主要産業の衰退を経験している一部の都市では、多くの空き家や未利用地が存在しています。

Some cities experiencing population decline or the loss of major industries have large numbers of vacant houses and unused lots. Properties may remain empty for years when owners move away, die without clear heirs, or decide that repair costs are not worth paying. As buildings sit unused, roofs, walls, and utilities can deteriorate. Neglected structures may become fire hazards or attract illegal activity, creating safety concerns for people who continue to live nearby.

90〜110語 · プリントあり

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英検1級要約環境

砂浜は、波や海流によって砂が海岸沿いを移動することで、自然に形を変えています。

Beaches naturally change shape as waves and currents move sand along the coast. In some areas, however, sea-level rise and coastal development are causing shorelines to retreat more quickly than they did in the past. Seawalls, ports, and other structures can also interrupt the natural movement of sediment, leaving certain beaches with less sand. As the beach becomes narrower, there is less space between the ocean and nearby buildings, roads, and other infrastructure. In places where beaches already provide only a narrow buffer, even moderate erosion can significantly increase exposure to the sea.

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

研究者は、新規性の高い研究成果や注目を集める発見を発表すると、より高く評価されることが多く、学術誌も肯定的な結果を報告する研究を採用しやすい場合があります。

Researchers often receive greater recognition when they publish novel or striking findings, and academic journals may be more willing to accept studies that report positive results. These incentives can create pressure to produce clear conclusions even when evidence is uncertain. Problems arise when researchers change their analytical methods after seeing the data or report only results that support an expected claim. A chance pattern may then appear stronger and more reliable than it really is, especially if unsuccessful analyses or contradictory findings remain unpublished.

90〜110語 · プリントあり

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英検1級要約環境

下水処理では、大量の下水汚泥が発生します。

Wastewater treatment produces large amounts of sewage sludge, a material that contains nutrients and organic matter removed from water during the treatment process. In some regions, this sludge is processed and applied to farmland as a substitute for commercial fertilizer. Using it in this way can recycle useful nutrients and reduce the amount of waste that must be buried or burned. However, treatment does not always remove every unwanted substance. Sludge may still contain traces of industrial chemicals, heavy metals, or other contaminants that entered the sewer system before reaching the treatment plant.

90〜110語 · プリントあり

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英検1級要約社会・文化

一部の地域では、強風、倒木、激しい嵐によって架空送電線が損傷し、広い範囲で停電が発生することがあります。

In some regions, strong winds, falling trees, and severe storms can damage overhead power lines and cause widespread electricity outages. Because poles and wires are exposed above ground, many parts of the network may fail at the same time during a major disaster. Repair crews may then have to travel to numerous damaged sites, remove fallen trees, replace poles, and reconnect lines before electricity can be restored. When destruction is extensive, some communities may remain without power for days.

90〜110語 · プリントあり

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英検1級要約環境

家庭や企業から出る有機性廃棄物は、埋立地に埋められた後も分解を続けます。

Organic waste from homes and businesses continues to decompose after it is buried in landfills. Because little oxygen reaches material deep inside a landfill, microorganisms break it down under conditions that produce methane. This gas is a powerful greenhouse gas, and it can keep forming for many years after waste has been deposited. If no collection system is installed, methane may escape through the soil and into the atmosphere, increasing emissions from the waste-management sector.

90〜110語 · プリントあり

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英検1級要約環境

ヒートポンプは、住宅やその他の建物の暖房に使われる化石燃料を減らす手段として普及が進められています。

Heat pumps are being promoted as a way to reduce the use of fossil fuels for heating homes and other buildings. Unlike furnaces that burn oil or gas directly, heat pumps use electricity to move heat from outside air or the ground into indoor spaces. As electricity generation becomes cleaner, this technology can lower emissions from buildings. However, if large numbers of households switch to electric heating at the same time, winter electricity demand may rise sharply, especially during cold waves when heating systems must work harder.

90〜110語 · プリントあり

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英検1級要約環境

建物のエネルギー効率を高めれば、完成後の暖房、冷房、電力使用による排出量を減らすことができます。

Improving the energy efficiency of buildings can reduce emissions from heating, cooling, and electricity use after construction. However, a large share of a building's climate impact can occur before anyone moves in. Producing materials such as steel and concrete requires large amounts of energy and, in some cases, chemical processes that release greenhouse gases directly. Environmental standards that focus mainly on energy consumed during a building's operation may therefore overlook substantial emissions generated while raw materials are extracted, processed, transported, and assembled.

90〜110語 · プリントあり

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英検1級要約環境

大規模な畜産施設では大量の家畜ふん尿が発生し、それらは農地で肥料として利用される前に保管されることがよくあります。

Large livestock operations produce substantial amounts of manure, which is often stored before being used as fertilizer on farmland. During storage and after manure is spread, nitrogen compounds can break down and release ammonia gas into the air. Once emitted, ammonia can travel beyond the farm and react with other pollutants in the atmosphere. These reactions may create fine particulate matter, allowing emissions from animal waste to contribute to air-pollution problems over a wider area than the farm itself.

90〜110語 · プリントあり

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英検1級要約環境

現代の都市では、大きなガラス窓が広く使われています。

Large glass windows are common in modern cities because they provide natural light and create open-looking building designs. However, glass can reflect the sky, trees, and other vegetation, making the surface appear to be part of the surrounding environment. Birds may fail to recognize the window as a solid barrier and fly toward the reflected image at high speed. These collisions can occur on office towers, apartment buildings, schools, and other structures, especially where large glass surfaces are located near parks or planted areas.

90〜110語 · プリントあり

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英検準1級要約テクノロジー

信号機は通常、一日の中で車の数が大きく変化しても、あらかじめ決められた時間設定に従って作動します。

Traffic lights usually follow fixed schedules, even when the number of vehicles changes greatly during the day. This can make drivers wait at empty intersections while long lines form elsewhere. To address this problem, more cities are introducing AI traffic lights. These systems use cameras and road sensors to study current traffic and change signal timing automatically.

60〜70語 · プリントあり

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英検準1級要約環境

多くの飲料や調理済み食品は、一度使用した後に捨てられる容器に入れて販売されています。

Many drinks and prepared foods are sold in containers that are thrown away after one use. To reduce this waste, some governments are considering deposit systems for reusable containers. Under such a system, customers pay a small extra amount when buying a product and receive the money back when they return the container. The collected containers are then washed and used again.

60〜70語 · プリントあり

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英検準1級要約環境

人口増加や気象パターンの変化により、一部の都市では淡水の管理が難しくなっています。

Fresh water is becoming harder to manage in some cities because of population growth and changing weather patterns. At the same time, heavy rain can quickly overwhelm drainage systems. In response, rainwater utilization systems are spreading. These systems store water from roofs and other surfaces for later use, such as cleaning or watering plants.

60〜70語 · プリントあり

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英検準1級要約環境

森林は広大な範囲にわたっており、人が定期的に点検することが難しい場合が多くあります。

Forests cover large areas that are often difficult for people to inspect regularly. Damage caused by fires, disease, illegal logging, or changing weather may therefore remain unnoticed for some time. A new approach uses artificial intelligence (AI) to examine information from satellites, drones, cameras, and ground sensors. This method of monitoring forest conditions is attracting growing attention.

60〜70語 · プリントあり

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