영어 모의고사 (자동 편성)

Even a modest level of dehydration, as little as two percent of body weight lost through sweat, can measurably ①increase an athlete's endurance and cognitive sharpness during competition. As fluid levels drop, blood volume decreases, forcing the heart to work harder to deliver the same amount of oxygen to working muscles, which ②accelerates fatigue. Dehydration also impairs the body's ability to regulate its own temperature, since sweating is the primary mechanism for releasing excess heat during intense exercise. Athletes competing in hot, humid conditions face a particularly ③difficult balance, because sweating heavily to stay cool simultaneously depletes the very fluids needed to sustain performance. Simply drinking large amounts of plain water is not always sufficient, however, since heavy sweating also flushes out sodium and other electrolytes ④essential for proper muscle function. For this reason, sports scientists generally recommend a hydration strategy that replaces both fluid and electrolytes, ⑤tailored to an individual athlete's sweat rate and the specific conditions of the event.

Factories that once employed hundreds of workers on an assembly line now run with a ①fraction of that staff, as robotic arms handle tasks that used to require human hands. Economists have long debated whether this shift destroys jobs or simply transforms them. Historical evidence offers some ②comfort: previous waves of automation eventually created new categories of work that no one had predicted. However, critics point out that earlier transitions unfolded over generations, giving workers ③ample time to retrain, whereas today's robots are being deployed at a pace that leaves little room for adjustment. A factory worker displaced this year cannot simply wait for a new industry to emerge decades from now. For this reason, many economists argue that the real ④challenge is not the robots themselves, but the ⑤sluggish speed at which society is expected to adapt to them.

Classical economic models typically assume that people discount future rewards at a constant rate, valuing a reward received later somewhat less than an identical reward received now, but doing so ①consistently across all time horizons. Empirical observation, however, reveals a different pattern: people apply a much ②steeper discount to the immediate future than to the distant future. When the reward or cost in question lies safely in the future, its emotional weight remains ③vivid, allowing rational long-term goals to dominate one's stated intentions. Once that same reward or cost draws near, however, its immediacy triggers a disproportionately strong emotional pull, frequently ④overriding the very plans made earlier with such apparent confidence. This dynamic helps explain chronic procrastination, since tasks that carry long-term benefits are perpetually ⑤deferred in favor of activities offering more immediate satisfaction.

Marketers have long recognized that perceived scarcity can dramatically increase a product's desirability, even when the item's intrinsic qualities remain entirely unchanged. A retailer who labels a product as "limited edition" or displays a countdown timer beside a discounted offer prompts customers to make hurried purchase decisions they might otherwise postpone or reconsider. Consumers who later reflect calmly on such purchases frequently discover that the item's actual usefulness fell well short of the ___________ they experienced at the moment of decision.

Blockchain technology was originally promoted as a way to remove the need for trusted middlemen. In theory, this design distributes power away from any single institution and toward the network as a whole. In practice, however, _______________, controlling enough computing power or currency to influence outcomes that were supposed to be decided collectively. Whether decentralization can survive this concentration of power remains one of the technology's most unresolved questions.

For example, children and elderly people are especially vulnerable because their bodies cool down less efficiently. Every summer, doctors warn about the danger of heatstroke during long heatwaves, and this condition does not affect everyone equally. ( ① ) Heatstroke happens when the body's temperature rises too high and cannot cool itself down. ( ② ) This condition can be life-threatening if it is not treated quickly. ( ③ ) To prevent heatstroke, drink plenty of water and avoid outdoor activities during the hottest hours of the day. ( ④ ) Wearing light clothing also helps your body stay cool. ( ⑤ ) If symptoms appear, move to a shaded or air-conditioned place immediately.

Advocates for the elderly argue that robots should be evaluated strictly as tools that free up human time for human contact, never as a lower-cost replacement for the contact itself. Facing a shortage of caregivers and a rapidly aging population, several countries have begun deploying robots designed to remind elderly residents to take medication, monitor for falls, and even offer simple conversation. ( ① ) Early trials show that many residents report reduced loneliness, particularly when a robot's presence allows a human staff member to spend more time with each patient. ( ② ) Critics, however, worry that this framing quietly shifts the goal of care. ( ③ ) Instead of asking how technology can support human connection, institutions may come to treat a robot's companionship as an acceptable substitute for it. ( ④ ) This risk grows especially large in facilities already struggling with tight budgets. ( ⑤ )

Until clearer rules emerge, artists, developers, and publishers remain locked in a legal gray zone that satisfies almost no one. Generative AI systems learn to write, draw, and compose by studying enormous collections of existing human work, much of which was created without the artists' knowledge or consent. ( ① ) Supporters of the technology argue that this process resembles how a human student learns by studying the masters. ( ② ) Critics respond that the comparison breaks down at scale, since a single AI model can absorb millions of works in days. ( ③ ) Courts around the world are now being asked to decide whether training an algorithm on copyrighted material counts as fair use or as infringement. ( ④ ) This is a question the law was never designed to answer. ( ⑤ )

주어진 문장: Without such outside checks, companies could easily present exaggerated or even false claims as genuine achievements. As consumers become more aware of global social and environmental issues, many now expect companies to take responsibility beyond simply selling products. ( ① ) This expectation has given rise to ethical consumption, in which shoppers consider factors such as fair wages, humane treatment of animals, and environmental sustainability before making purchases. ( ② ) Companies that ignore these concerns risk public backlash, especially when unethical practices are exposed through investigative journalism or social media. ( ③ ) Some corporations have responded by publishing detailed sustainability reports, though critics question whether these documents reflect genuine change or merely serve as public relations tools. ( ④ ) Real accountability, according to many experts, requires independent verification rather than self-reported claims that cannot be easily checked. ( ⑤ ) Consumers, for their part, must also remain vigilant, since a company's marketing language does not always match its actual practices.

Convenience installed today, in other words, can quietly become control tomorrow. City governments increasingly market dense networks of surveillance cameras as a straightforward safety upgrade, promising faster emergency response and lower crime rates. ( ① ) In many cases, the technology delivers exactly what it promises, helping investigators identify suspects within hours rather than weeks. ( ② ) Yet the same infrastructure that catches criminals also creates a permanent record of where ordinary, law-abiding citizens go about their daily lives. ( ③ ) Once a camera network exists, its purpose can quietly expand, often without new public debate or explicit approval. ( ④ ) Civil liberties groups argue that a city should decide how much surveillance it wants before the cameras go up, not years afterward when the infrastructure is already impossible to remove. ( ⑤ )