英検1級要約 予想問題

Prescription drug prices are strongly influenced by patent systems. When a company develops a new medicine, it can receive the exclusive right to sell it for a certain period. This arrangement is intended to reward the costly and uncertain process of laboratory research, clinical testing, and regulatory approval. It also affects negotiations among drug companies, insurers, hospitals, and governments.

Supporters argue that strong patents are essential for innovation. Without a period of market protection, rival firms could copy successful drugs quickly, making it difficult for the original developer to recover its investment. Advocates also say that expected profits encourage companies to pursue treatments for serious diseases, including conditions that require years of testing and carry a high risk of failure.

Critics, however, argue that patent systems can be manipulated. Some companies seek additional patents for minor changes, such as revised dosages or delivery devices, even when medical benefits are limited. This can delay cheaper generic competition, keep health-care costs high, and place pressure on public budgets. Policymakers have proposed stricter review standards, but reform is difficult because overly severe rules might also discourage legitimate incremental research.

Freshwater resources often appear secure until long-term use reveals their limits. Large underground aquifers supply irrigation and drinking water across many regions, supporting farms, towns, and food production. Because such aquifers may refill very slowly, heavy pumping can create risks that are not immediately visible to local communities. The problem is especially difficult where agriculture has been built around decades of inexpensive water access.

Supporters of stricter water management say restrictions are necessary. Falling water levels force farmers to drill deeper wells and raise pumping costs. If depletion continues, agricultural output may decline, rural employment may suffer, and food prices could rise outside the affected region. Rules that limit extraction or require accurate measurement can encourage more efficient irrigation and protect supplies for future generations.

Opponents argue that abrupt limits can damage communities that depend on farming. Reduced water access can lower crop yields, reduce land values, and make smaller farms especially vulnerable. Many farmers also distrust regulations imposed by distant officials, particularly when urban consumers benefit from food production without sharing the burden of conservation. As a result, governments must balance long-term sustainability with immediate economic pressure.

Carbon pricing has become a major policy option for addressing climate change. Under such systems, companies pay for greenhouse gas emissions through a tax or by purchasing permits. The goal is to make pollution financially costly and to let businesses choose the most efficient way to reduce it. Unlike direct bans, this approach attempts to guide markets rather than replace them.

Advocates argue that carbon pricing encourages innovation without requiring governments to dictate every technical solution. Firms that can cut emissions cheaply will do so, while others may invest in cleaner equipment over time. Revenue from the system can also be returned to households, used for public transportation, or spent on retraining workers in regions dependent on fossil fuels. Supporters say these designs can reduce unfair burdens.

Nevertheless, the policy raises serious concerns. Higher production costs can be passed on to consumers through electricity, transport, and food prices. Energy-intensive industries warn that they may lose competitiveness if foreign rivals face weaker rules, leading to job losses or relocation. Political resistance is also strong because voters often distrust policies that appear to raise living costs, even when rebates are promised.

Modern cities increasingly use digital systems to manage transportation, energy, water, and public safety. Sensors and connected devices can collect information about traffic, electricity use, equipment failures, and crowd movement. These tools allow officials to respond more quickly and to allocate limited resources with greater precision. Many local governments also hope that data will help them make long-term planning less dependent on guesswork.

Supporters say smart-city technology can improve urban life. Traffic data may reduce congestion, energy systems can lower operating costs, and real-time information can help during emergencies. Clear digital records may also make public services more transparent and help cities plan infrastructure based on actual patterns rather than rough estimates. Private firms argue that innovation will be faster if cities remain open to new digital services.

However, critics warn that connected systems create new vulnerabilities. Cyberattacks on traffic lights, water services, or emergency networks could disrupt an entire city. Personal data about residents may also be exposed or misused. Stronger cybersecurity standards and audits can reduce risks, but many municipalities lack money and expertise, while private vendors may resist rules that increase costs or reveal weaknesses.

Artificial intelligence is increasingly used in decisions that affect employment, loans, education, and public services. Algorithms can screen applications, predict risk, or recommend who should receive support. Because these systems operate at scale, errors or unfair patterns can influence many people before problems are noticed. In some cases, even the organizations using the tools may not fully understand how a recommendation was produced.

Proponents argue that AI can make decision-making faster and more consistent. Properly designed systems may apply the same criteria to every applicant and identify patterns that humans overlook. Businesses and public agencies also see AI as a way to reduce costs, handle large workloads, and deliver services more efficiently. Some supporters believe automated checks could even expose human bias if results are audited carefully.

Critics question whether such systems are sufficiently transparent and accountable. Models may reproduce bias from historical data while appearing objective, and individuals may not understand why they were rejected for a job or loan. Proposed regulations require testing, documentation, and explanations for high-impact AI, but companies warn that heavy compliance costs could slow innovation, especially for smaller firms.

Academic publishing is central to how research is shared and evaluated. Journals organize peer review, create records of scholarly progress, and influence hiring, promotion, and funding decisions. Because publication in respected journals carries great prestige, the system shapes the behavior of researchers and universities. It also determines whether doctors, engineers, teachers, and policymakers can easily consult new findings.

Supporters argue that journals maintain quality by filtering unreliable studies and coordinating expert review. They also provide stable archives and recognizable standards across disciplines. Open-access advocates add that research funded by taxpayers should be available to the public, and they promote policies requiring publicly funded studies to become free to read after a short period. Wider access could help researchers in poorer regions participate more fully.

Yet the system faces criticism from several directions. Subscription fees can be extremely high, limiting access for poorer institutions. Some publishers earn large profits while relying on unpaid reviewers and authors who surrender copyrights. Author-paid open-access models may also disadvantage researchers without funding. Reform must therefore expand access without weakening review quality or creating new inequalities.

Fisheries provide food, employment, and cultural identity in many coastal regions. However, when demand rises and technology improves, fishing can intensify beyond sustainable levels. Because fish populations move across borders and open waters, managing them requires cooperation among governments, companies, and local communities. The difficulty is increased by illegal fishing and by uncertainty in scientific estimates of fish stocks.

Supporters of stronger regulation say limits are essential for long-term stability. Quotas, seasonal closures, and protected marine areas can give fish stocks time to recover. Satellite tracking and mandatory reporting may also reduce illegal fishing. If fisheries remain healthy, coastal economies and consumers can benefit over decades rather than only in the short term. Some conservationists argue that temporary sacrifices prevent far greater losses later.

Opponents argue that strict rules can immediately harm livelihoods. Large fleets may lobby against reduced quotas, while small-scale fishers fear that regulations will favor powerful companies or distant regions. Enforcement is also expensive, especially across vast ocean areas. The central difficulty is preventing ecological collapse without imposing unfair burdens on communities that depend on fishing.

Global supply chains allow companies to manufacture products where costs are low and deliver goods across borders quickly. This system has reduced prices for consumers and helped developing countries attract investment. It has also encouraged firms to specialize in particular stages of production rather than producing everything domestically. As a result, a single product may depend on dozens of suppliers in several countries.

Advocates of the current model argue that international networks promote efficiency and innovation. Companies can choose suppliers with specific expertise, expand production rapidly, and offer consumers a wider range of goods. Some policymakers also see trade links as a way to support economic development and reduce poverty in manufacturing regions. Competition among suppliers can also push firms to improve quality and productivity.

Recent disruptions, however, have exposed weaknesses. Natural disasters, pandemics, and geopolitical conflict can interrupt shipments of medical supplies, semiconductors, or food. Critics also argue that firms may exploit weak labor standards abroad while avoiding accountability. Diversifying suppliers and increasing transparency could improve resilience, but such reforms may raise costs and be criticized as protectionist.

Housing prices in major cities have risen sharply because demand often exceeds supply. Investors may purchase multiple properties for long-term appreciation or for short-term rentals. At the same time, residents with lower incomes may be pushed farther from jobs, schools, and public services. The issue is especially contentious because housing is both a financial asset and a basic necessity.

Supporters of private investment argue that it can improve housing quality and encourage construction. Owners have incentives to renovate buildings, while rental platforms may support tourism and provide income for local households. Some economists also argue that zoning reform and higher-density development, rather than limits on investment, are the most effective ways to increase supply. They warn that discouraging investors could reduce the capital needed for new housing.

Critics contend that uncontrolled investment can exploit scarce housing. When many homes are used for short-term rentals or left vacant, fewer units remain for long-term residents, pushing rents upward. Regulations such as vacancy taxes and rental limits may help, but property owners resist restrictions, and cities worry that strict controls could discourage new construction.

Vaccination programs are designed to prevent outbreaks and protect people who are especially vulnerable to disease. When vaccination rates are high, communities gain indirect protection because infections have fewer opportunities to spread. For this reason, public health authorities often promote vaccination through campaigns, school requirements, or workplace guidelines. The success of such programs depends not only on scientific evidence but also on public trust.

Supporters argue that strong vaccination policy is justified by collective benefit. Preventing illness reduces medical costs, keeps schools and businesses open, and protects individuals who cannot be vaccinated for medical reasons. Governments can also improve acceptance by making clinics convenient, reporting safety data clearly, and addressing misinformation with accessible explanations. Some officials believe mandates are necessary when voluntary measures fail.

Nevertheless, vaccine policy can become politically contentious. Some citizens distrust institutions or fear side effects, while others view mandates as a violation of personal autonomy. Unequal access can deepen skepticism if certain groups face barriers such as transportation or time off work. Officials must therefore protect public health without increasing polarization.

As digital services expand, companies collect personal data through apps, shopping platforms, vehicles, and connected devices. This information can be used to target advertising, personalize services, train algorithms, or develop new products. Many governments are therefore debating who should control data and who should profit from it. The debate is complicated because data can be copied and reused without being consumed like ordinary property.

Supporters of flexible data use argue that collection is essential for convenient services and free platforms. Companies need revenue to invest in infrastructure, cybersecurity, and product development. They also claim that overly strict ownership rules could make data-sharing difficult in fields such as medical research, where large datasets may produce social benefits. In their view, regulation should focus on misuse rather than restrict all collection.

Critics argue that the current system relies on vague consent and complex terms that few users understand. Data can travel through many companies, and breaches may expose sensitive information. Large platforms can also combine data across services, strengthening monopoly-like advantages. Stronger rights to access, delete, or limit data may help, but enforcement across borders remains difficult.

Central bank digital currency, or CBDC, is official digital money issued by a central bank. Governments are studying it as cashless payments expand and private digital currencies attract attention. A CBDC could be used through phones or cards while remaining backed by public monetary authority. It would differ from ordinary bank deposits because it could represent a direct claim on the central bank.

Advocates say CBDCs could modernize payment systems. Faster settlement may reduce transaction costs, and people without traditional bank accounts might gain easier access to digital payments. Some central banks also see CBDCs as a way to preserve monetary sovereignty if private payment platforms or foreign digital currencies become dominant. Offline payment functions could also make the system useful during disasters.

Critics warn about privacy and financial stability. If transactions are too visible to governments, citizens may fear surveillance. Banks worry that during a crisis people could rapidly move deposits into CBDCs, weakening the banking system. Designs that protect privacy, limit holdings, or involve private banks may reduce these risks, but each choice creates technical and political trade-offs.

University tenure gives scholars long-term job security after a demanding review process. It was designed to protect academic freedom, allowing researchers to pursue controversial questions without fear of dismissal. The system also helps universities attract talented faculty and maintain stable research communities. In some fields, it supports projects whose value may not become clear for many years.

Supporters argue that tenure encourages ambitious scholarship. Some important projects require many years and may challenge powerful interests or popular assumptions. Without protection, researchers might avoid risky work and focus only on short-term results. Tenure can therefore serve as an investment in knowledge that society might not support through ordinary employment contracts. It may also protect teachers who discuss politically sensitive topics.

Critics say tenure can weaken accountability and create unfair labor structures. Removing underperforming faculty is difficult, while many younger academics work on temporary contracts with lower security. Proposed reforms include post-tenure reviews, clearer performance standards, and separate career tracks for teaching and research. However, universities must avoid changes that undermine genuine intellectual independence.

Antitrust policy has returned to public debate as a small number of technology platforms dominate search, social media, mobile software, and online retail. These firms control important digital infrastructure, so their rules can influence what information people see and which businesses can reach customers. Traditional antitrust tools are difficult to apply because many digital services charge users no direct price.

Defenders of large platforms argue that scale creates benefits. Massive user networks, data centers, and security systems require enormous investment, and many services remain free to consumers. They also claim that strong platforms can innovate quickly and compete globally, while heavy intervention might reduce quality or fragment services that users rely on. Integrated ecosystems can also make products simpler for ordinary users.

Critics respond that dominance can become monopoly power even when prices are low. Platforms may favor their own products, copy smaller rivals, or use data advantages to block competition. Proposed reforms include limits on self-preferencing, data portability, and easier switching between services. Regulators, however, must prove harm in markets where consumer price is not the main issue.

Carbon offset markets have expanded as companies promise net-zero emissions. Instead of eliminating all pollution directly, firms buy credits from projects that claim to reduce or remove carbon, such as forest protection, renewable energy, or carbon storage. The credits are then used to balance emissions that remain. The idea is attractive because it appears to connect business activity with climate finance.

Supporters argue that offsets provide flexibility during the transition to cleaner operations. Some emissions are difficult to eliminate quickly, and offset revenue can finance conservation or climate projects in regions that need investment. In theory, reducing carbon where it is cheapest globally can lower overall costs and encourage broader participation. Offsets may also direct funds to communities that would otherwise struggle to protect forests.

Critics argue that weak verification can make offsets misleading. Some projects may not create reductions beyond what would have happened anyway, while others may overestimate benefits or count the same reduction twice. Offsets can also distract companies from cutting their own emissions. Stronger measurement, independent audits, and transparent registries may improve credibility, but they increase costs and face resistance.

Deep-sea mining has attracted attention because the ocean floor contains minerals used in batteries, electronics, and renewable-energy infrastructure. Companies hope to collect metals from areas far below the surface, where sunlight does not reach and ecosystems remain poorly understood. International rules for such activity are still developing, and some governments want decisions before scientific knowledge is complete.

Supporters say seabed minerals could support the transition away from fossil fuels. Demand for nickel, cobalt, and other materials is rising, and land-based mining can damage forests, pollute rivers, and create conflict with local communities. Some argue that carefully controlled deep-sea mining might diversify supply and reduce dependence on politically unstable regions. Revenue from licenses could also support marine research if properly managed.

However, scientists warn that deep-ocean ecosystems may recover extremely slowly from disturbance. Mining machines could destroy habitats, spread sediment clouds, and harm species that have not yet been studied. Because monitoring remote areas is difficult, companies may operate with limited accountability. Regulators must decide whether economic benefits justify risks that are still highly uncertain.

Generative AI has intensified copyright disputes because models are trained on enormous datasets that may include books, news articles, music, and artwork. Developers argue that broad access to data is necessary to build systems capable of producing useful text, images, and audio. Creators argue that their work is being used without meaningful consent. Courts and lawmakers are now trying to interpret rules written before such technology existed.

Proponents of permissive rules say AI training is transformative and that restrictions would slow innovation. They contend that model development requires vast investment in computing and expertise, and that broad training data prevents progress from being limited to a small number of companies with private collections. Some also claim AI tools can support creators by expanding demand for new content or lowering production costs.

Critics respond that creators may lose income and control if AI systems imitate their styles or reproduce passages closely. Smaller creators have limited bargaining power, while unclear rules favor firms that already possess large datasets. Possible solutions include licensing systems, opt-out rights, and revenue-sharing models, but enforcement across borders remains complex.

Pharmaceutical supply chains have become a policy concern after repeated shortages of essential medicines. Many drugs depend on global networks for active ingredients, packaging, and manufacturing. Production is often concentrated in a small number of regions because specialization can reduce costs and simplify quality control. This structure is efficient in normal times but can be fragile when disruptions occur.

Supporters of current supply structures argue that global sourcing keeps medicine affordable. Specialized facilities can serve many markets, scale production quickly, and maintain technical expertise. They warn that forcing companies to diversify or reshore production may raise prices for health systems without guaranteeing that shortages will disappear. Some also argue that international production allows scarce expertise to be used more efficiently.

Critics say concentration creates systemic risk. A factory closure, natural disaster, export restriction, or quality failure can cause shortages across several countries. Low prices for older drugs may also push manufacturers out of the market, reducing backup capacity. Governments are considering stockpiles, transparency rules, and incentives for diversified production, but such measures require funding and careful selection of priority medicines.

Space debris is becoming a serious threat as more satellites are launched for communication, navigation, and research. Old spacecraft and fragments from collisions travel at extremely high speeds, so even small objects can damage active satellites. Because useful orbits are shared, debris created by one operator can endanger many others. The issue is growing as private companies plan large satellite networks.

Supporters of rapid satellite expansion emphasize economic and social benefits. Satellite networks can improve global internet access, support disaster response, monitor climate change, and strengthen navigation systems. Companies argue that predictable licensing and flexible rules are needed so they can attract investment and develop safer technologies. They also claim that stricter rules could slow services needed by remote communities.

Critics warn that weak coordination creates a tragedy of the commons. Firms may launch satellites without reliable plans for removal at the end of their service life. A major collision could produce cascading debris and make valuable orbits difficult to use. Proposed solutions include international deorbiting standards, shared tracking systems, insurance requirements, and liability rules, but enforcement across jurisdictions is difficult.

Geoengineering has become a topic of debate as climate change accelerates. Some proposals would reflect a small amount of sunlight away from Earth, while others would remove carbon dioxide from the atmosphere at a large scale. These ideas are discussed because emission reductions have not advanced quickly enough. Even limited research is controversial because it suggests humans might intentionally alter planetary systems.

Supporters argue that geoengineering research should not be dismissed. If warming produces severe droughts, sea-level rise, or ecosystem damage, additional tools may be needed to reduce harm. Careful experiments could help scientists understand risks before any emergency decision is made, and carbon-removal technology may eventually complement deep emissions cuts. Supporters also say ignorance would be dangerous if a future crisis forces rapid action.

However, critics warn that geoengineering could create dangerous incentives and political conflict. Governments or companies might delay reducing emissions if they believe a technical fix is available. Sunlight-reflection methods could also affect rainfall patterns differently across regions, raising questions about consent and responsibility. Because impacts would cross borders, governance may be even harder than the science itself.

In communities repeatedly damaged by floods, rebuilding homes in the same places can become an increasingly expensive cycle. One response is for governments to offer voluntary property purchases. Owners receive money to move elsewhere, while the purchased buildings are demolished and the land is kept free of new housing. Besides preventing future damage to those properties, the resulting open space can absorb water that would otherwise flow toward nearby buildings. Unlike a flood barrier, which must be maintained and may eventually be overwhelmed, removing exposed homes permanently reduces the number of people living directly in danger. However, a successful purchase involves much more than agreeing on a price.

Applications often take years to process because officials must establish ownership, assess property values, and coordinate funding from different agencies. During this period, residents may spend their savings repairing homes that they ultimately intend to leave. Those who finally receive an offer can still struggle to find affordable housing near their jobs or relatives. Moreover, because participation is voluntary, some owners may stay while their neighbors depart. This leaves isolated households surrounded by empty lots, even as the local government continues paying to maintain roads and other services for a shrinking population. Tenants may face particular difficulties because purchase payments normally go to property owners rather than the people renting from them.

To address these problems, some planners propose arranging relocation for entire neighborhoods. By identifying suitable housing before purchases begin and involving residents in decisions, authorities could preserve social connections and avoid leaving scattered households behind. Yet acquiring replacement sites and extending essential services require substantial spending before the old properties can be bought. Communities receiving new residents may also object to rapid development. Funding programs designed to compensate individual owners after disasters are not necessarily equipped to support such extensive planning. Consequently, proposals that could make relocation fairer may encounter financial and administrative barriers long before they reduce flood exposure.

Crop varieties differ in their ability to withstand disease, drought, and other threats. When farmers increasingly plant a small number of commercially successful varieties, useful characteristics found in less common crops can disappear from fields. Seed banks help preserve this diversity by collecting samples and storing suitable seeds under carefully controlled conditions. Breeders can later draw on these collections when developing crops for changing agricultural needs. Stored samples also provide a reserve if varieties are lost locally through disasters or shifts in farming practices. Yet placing seeds in a secure building is only one part of maintaining this agricultural resource.

Collections require continuing attention. Staff must test whether seeds can still grow and produce fresh supplies when stored samples deteriorate. Detailed records are needed so researchers can identify material with useful characteristics. Moreover, stored seeds preserve genetic possibilities but do not themselves respond to conditions outside the bank. Varieties grown and selected by farmers, in contrast, can continue changing over successive generations. If cultivation stops, knowledge about planting, harvesting, and preparing a crop may also disappear. A collection can therefore survive physically while becoming disconnected from the people and practices that make its contents useful.

A complementary approach is to support farmers who continue growing diverse local varieties and connect their work with seed collections. Exchanges between farmers and researchers can reveal which characteristics matter under actual field conditions, while stored samples can help restore varieties that communities wish to grow again. However, farmers cannot maintain diversity solely for a distant public benefit. If local crops attract few buyers or require more labor, growers may switch to more profitable alternatives. Conservation programs may therefore need to develop markets and provide sustained practical support, rather than merely distributing seeds. Preserving crop diversity ultimately involves maintaining both reliable collections and the economic and social conditions under which farmers can keep using them.

At popular historic sites, visitors often arrive at similar times, filling narrow paths and placing pressure on fragile structures. Some managers respond by requiring people to reserve an entry time before arriving. Limiting admissions during each period can spread visits across the day, reduce queues, and make staffing needs easier to anticipate. It can also improve the experience inside a site, where a crowded room may prevent people from seeing the objects they traveled to encounter. However, a reservation system changes more than the timing of visits: it also determines who can obtain access and under what conditions.

When places become available far in advance, travelers with fixed plans and reliable internet connections may secure them before others have an opportunity. Local residents or people who decide to visit at short notice can then find themselves excluded even when they live nearby. Commercial operators may also reserve large blocks of places that they ultimately fail to use. Although unused reservations keep visitor numbers low, they can leave the site below its planned capacity while preventing willing visitors from entering and reducing income for nearby businesses. Meanwhile, enforcing entry times may require additional staff and create disputes when transport delays make visitors late.

To address these difficulties, managers can reserve some places for bookings made on the day and release unused reservations promptly. Separate arrangements for residents and limits on large commercial bookings may also distribute opportunities more broadly. Yet these adjustments involve tradeoffs. Holding places back can leave capacity unused if demand is weaker than expected, while releasing them too late may not help visitors who need time to travel. Gathering information about actual attendance and consulting local businesses can support better decisions. Nevertheless, no single allocation rule can fully reconcile conservation, predictable operations, and convenient access for every visitor. The system must be adjusted in response to how people actually use it.