英検準1級要約 予想問題

Many scientists study wild animals to understand how they live and how ecosystems change. In recent years, researchers have attached small electronic devices to animals. These devices can record information such as movement, body temperature, heart rate, and conditions in the animals' surroundings.

Supporters say the devices are useful because they allow scientists to collect reliable information over long periods. Some animals live in places that are difficult for humans to reach, while others avoid people. By using the devices, researchers can learn how such animals respond to seasons, disasters, or human activity.

However, critics have concerns about the method. If an animal feels stressed by carrying a device, it may change how it moves, eats, or interacts with others, so the data may not show natural behavior. The devices may also make it harder for animals to find food or escape enemies.

District heating is a system in which several buildings share one central source of heat. Hot water or steam is produced at a facility and sent through underground pipes to homes, offices, and public buildings. Some cities are considering this system as an alternative to individual boilers.

Supporters say district heating can be more efficient. A large system may waste less energy than many small heating systems, and it can use heat from factories or renewable sources. If less fuel is burned, carbon dioxide emissions may fall, which could help reduce the impact of climate change.

However, critics point out that district heating is expensive to build. Installing underground pipes can disturb roads and daily life, especially in crowded urban areas. There is also a risk that if a central facility or major pipe breaks, many buildings could lose heat at the same time.

Drug patents give pharmaceutical companies the exclusive right to sell new medicines for a limited time. This protection is intended to reward companies for the cost and risk of research. In many countries, patent rules strongly influence the price and availability of medicine.

Supporters argue that patents are necessary for medical progress. If companies could not protect successful drugs, competitors could copy them immediately, and the original developers might not recover their investment. The possibility of earning profits encourages companies to search for new treatments.

However, critics say the system can cause serious problems. Because competition is limited, drug prices often stay high, making treatment difficult for some patients to afford. Some companies also seek extra patents for only minor changes to existing drugs, which can extend market control without major medical improvement.

The Ogallala Aquifer is a huge underground source of water beneath parts of the central United States. It supplies water for wells and farming, especially in areas where rainfall is limited. For many years, large amounts of water have been pumped from it for irrigation.

Supporters of stricter water rules say limits are necessary. In some areas, water levels have dropped greatly, and the aquifer refills very slowly. By reducing pumping and measuring water use more carefully, communities may protect the resource and encourage farmers to use water more efficiently.

Nevertheless, many farmers oppose strict limits. They argue that reduced water access can lower crop yields and threaten their income. Installing meters or changing irrigation methods can also be expensive, and land may lose value if farming becomes more difficult.

Online learning has expanded rapidly, and many schools now use digital platforms for lessons, homework, and tests. These systems may include recorded videos, interactive exercises, and tools that track student progress automatically. Some people expect online learning to remain common in education.

Supporters say online learning offers flexibility. Students can study at their own pace, review difficult sections, and access materials at any time. Schools can also use learning data to identify topics that cause problems and give more targeted support to students.

However, critics warn that online learning can create inequality. Some students do not have stable internet access, suitable devices, or a quiet place to study. Others may feel isolated without face-to-face interaction, and teachers may find it harder to notice confusion or stress through a screen.

Artificial intelligence is increasingly used to help students practice writing. Some tools can check essays, point out grammar mistakes, and give comments on organization or vocabulary. They can also suggest revised sentences and provide sample answers for learners to study.

Supporters say these tools are useful because they give quick feedback. Students can practice more often without waiting for a teacher to grade every draft, which is helpful in large classes. AI may also make writing practice easier to begin and encourage learners to revise more frequently.

Nevertheless, critics argue that AI feedback may not always be accurate. A system might mark unusual but correct expressions as wrong or accept unclear writing. There is also concern that students may depend on AI too much and fail to develop the ability to plan and express ideas independently.

Vertical farming is a way of growing crops in stacked layers, often inside buildings with artificial light and controlled temperature. It is designed to produce food in cities, close to consumers, instead of transporting it long distances from rural farms.

Supporters say vertical farming has several benefits. It can reduce the amount of land needed for agriculture and protect crops from extreme weather. Because water can be recycled in closed systems, it may also use less water than traditional farming and provide fresher vegetables to city residents.

However, critics point to important limitations. Vertical farms need large amounts of electricity for lighting and climate control, so their environmental benefits may be small if fossil fuels are used. They are also expensive to build, and many staple crops, such as wheat or rice, are difficult to grow efficiently indoors.

Carbon capture technology is designed to reduce greenhouse gas emissions. It traps carbon dioxide from power plants or industrial facilities before the gas enters the atmosphere. The captured carbon dioxide can then be stored underground or used in certain industrial processes.

Supporters argue that carbon capture can help fight climate change. It may reduce emissions from industries that are difficult to change quickly, such as cement and steel production. Some people also believe that building and maintaining the technology could create jobs in engineering and infrastructure.

Nevertheless, critics question its cost and effectiveness. Capture facilities and transport systems are expensive, and the process itself uses energy. There are also concerns about long-term storage and possible leaks. Critics worry that relying on carbon capture could slow investment in cleaner energy and efficiency.

Microplastics are tiny pieces of plastic that come from larger products breaking down or from materials such as synthetic clothing fibers. They have been found in oceans, rivers, soil, and even in the air. Scientists are studying their long-term effects on health and ecosystems.

Many researchers say reducing microplastics would benefit the environment. Marine animals may swallow these particles, which can harm their bodies and possibly move through the food chain. Microplastics can also carry chemicals and concentrate pollutants, increasing concern about wider ecological damage.

However, controlling microplastics is difficult. Their sources are spread across daily life, including laundry, tire wear, and packaging, so reducing only one source may not solve the problem. Measuring microplastics is also challenging because methods are not fully standardized, making it hard to judge whether countermeasures are working.

Energy storage is becoming more important as renewable power sources such as solar and wind expand. Because sunlight and wind are not constant, electricity generation can rise and fall. Storage systems are needed to keep the power supply stable.

Supporters say storage makes renewable energy more useful. It can store electricity when production is high and release it when demand rises or production falls. This can help prevent blackouts and reduce the need for fossil-fuel power plants that operate mainly as backup.

Nevertheless, critics point to cost and material problems. Many batteries require minerals such as lithium, and mining can harm the environment or local communities. Recycling is still limited in some regions. Another challenge is that batteries may work for short gaps, but longer shortages can require different and expensive solutions.

Gene editing in agriculture has attracted attention as food demand rises and climate conditions become unstable. Scientists can change specific parts of a plant's DNA to improve resistance to disease or drought. Some countries are testing how this technology could be used in farming.

Supporters say gene editing could improve food security. Crops that survive dry seasons or resist pests may protect farmers' income and help keep food prices stable. Some people also argue that stronger crops could reduce the need for chemical pesticides, which may benefit the environment.

Nevertheless, critics warn about long-term risks. Ecosystems are complex, and unintended effects may appear only after edited crops are widely used. There is also concern that large companies could control important seeds, making farmers dependent on them. Labeling and public trust are additional problems.

Universal basic income, or UBI, is a system in which citizens receive a regular payment regardless of their job status. It has been discussed as automation and unstable employment spread. Several countries and cities have tested small programs to see how people use guaranteed income.

Supporters say UBI can reduce poverty and give people more security. A stable payment may allow recipients to study, care for family members, or look for better work without immediate financial pressure. It may also reduce stress and improve mental health.

Nevertheless, critics raise economic and social concerns. A national program would be very expensive and could require higher taxes or cuts to other services. Some opponents also worry that guaranteed income might reduce the incentive to work, while others fear that extra demand could contribute to inflation.

Satellite internet services are expanding and promise fast connections even in rural areas. Traditional networks often avoid remote regions because building cables is expensive. By using satellites, companies aim to provide coverage almost anywhere.

Supporters say satellite internet can reduce regional inequality. Students in remote areas could access online classes, and small businesses could reach wider markets. During disasters, satellite networks might also provide backup communication when local infrastructure fails.

Nevertheless, there are serious limitations. Equipment and monthly fees can be costly for users, and service quality may change because of weather or network congestion. Critics also worry that if only a few private companies control the service, they could gain too much pricing power or political influence.

Some schools are exploring facial recognition systems for security and attendance. Cameras can identify students at entrances, record arrival times, and alert staff when unknown individuals enter. The technology is being considered as schools look for ways to manage safety more efficiently.

Supporters say these systems can make schools safer and save time. Teachers may spend less time checking attendance, and staff can quickly confirm whether students are on campus during emergencies. Some parents may also feel reassured by stronger security.

Nevertheless, critics stress privacy and error risks. Facial recognition is not always accurate, and mistakes may unfairly mark a student as absent or suspicious. Storing face data also creates danger if information is leaked. Critics say constant monitoring could increase stress and change the learning environment.

Fast fashion has grown by offering trendy clothing at low prices and releasing new items frequently. Many brands use global supply chains to produce clothes quickly. This business model has changed how many people buy and replace clothing.

Supporters say fast fashion gives consumers affordable choices. People can express their style without spending much money, and the industry creates jobs in design, logistics, and retail. Frequent new products can also help companies respond quickly to changing consumer tastes.

However, critics highlight environmental and labor problems. Producing clothes uses large amounts of water and energy, and many cheap items are thrown away quickly, increasing waste. Workers in some supply chains may face low wages or unsafe conditions, and these problems are difficult to monitor across many countries.

Mental health days have become a topic in workplaces as stress-related problems increase. Some companies allow employees to take days off specifically for mental recovery, separate from regular sick leave. The policy is meant to recognize that mental health can affect work as much as physical illness.

Supporters say mental health days can reduce burnout and improve long-term productivity. Workers who rest before reaching exhaustion may return with better focus and fewer mistakes. The policy can also reduce stigma and make employees more willing to seek help early.

Nevertheless, critics raise concerns about fairness and misuse. If rules are unclear, some employees may feel the system is being exploited. Managers may also worry about staffing problems when many workers take leave at the same time. In some workplaces, employees might hesitate to use the policy because they fear negative judgment.

Hydrogen has been promoted as a future energy carrier, especially for industries that are hard to electrify. It can be produced, stored, and later used in factories or transportation. Governments and companies are studying how hydrogen could fit into future energy systems.

Supporters say hydrogen could reduce emissions in areas such as steelmaking, shipping, and long-distance trucking. It can also store energy when renewable electricity production is high and release it when demand rises. Some regions see hydrogen as a way to strengthen energy security.

Nevertheless, critics stress inefficiency and cost. Producing, transporting, and storing hydrogen can waste energy compared with using electricity directly. Infrastructure is expensive, and leaks may create safety concerns. There is also debate about hydrogen made from natural gas, which may still cause emissions.

Influencer marketing has become a major advertising method, especially among young consumers. Companies pay popular online creators to introduce products through videos or posts. This form of advertising often feels more personal than traditional commercials.

Supporters say influencer marketing helps brands reach customers efficiently. Companies can choose creators whose followers match the target audience, and results can be measured through clicks or sales codes. Influencers can also show how products are used in daily life, making advertisements more practical and engaging.

Nevertheless, critics highlight ethical problems. Some influencers do not clearly show when they are being paid, which can mislead viewers. There are also cases of exaggerated claims, especially for health or beauty products. Consumers may mistake personal opinions for reliable evidence and make poor purchasing decisions.

Micro-credentials, such as short online certificates, are becoming popular as job skills change rapidly. Unlike traditional degrees, these programs focus on specific skills such as data analysis or project management. Many workers use them to continue learning after leaving school.

Supporters say micro-credentials are cheaper and faster than multi-year programs. Learners can study while working and gain skills that may help them change careers or improve their current position. Companies may also use the certificates to judge applicants' abilities more directly.

Nevertheless, critics question their quality and recognition. Because providers vary widely, some certificates may not prove real skill. Employers may not know which programs are trustworthy, and learners may waste time and money on weak courses. There is also concern that narrow training may reduce broader education.

Biodiversity corridors are proposed to protect wildlife as cities and farms expand. A corridor connects separated natural areas, allowing animals to move between them. This can help species find food, mates, and safer habitats.

Supporters say corridors reduce the isolation that can lead to population decline. They may also help ecosystems adapt to climate change because some species need to move as temperatures rise. Connected landscapes can make such movement easier and may lower the risk of extinction.

Nevertheless, critics raise concerns about land use and cost. Creating corridors may require limiting development, which can face resistance from property owners and local businesses. Corridors also need careful management to prevent conflicts with human activity, such as crop damage, and some poorly designed corridors could spread invasive species or disease.