영어 모의고사 (자동 편성)

Consider a village green shared freely by every herder in the community, where each individual may graze as many animals as they wish without ①paying any fee. From the perspective of any single herder, adding one more animal to the shared pasture ②brings a clear personal benefit, since the extra income belongs entirely to that herder alone. The cost of the additional grazing, however, is spread thinly across every herder who uses the green, so no single individual ③bears more than a tiny fraction of the damage. Because this calculation favors adding more animals for every rational herder, the shared pasture is gradually overgrazed until it can no longer ④support any animals at all, harming the very community whose rational members caused the collapse. Philosophers use this scenario to illustrate a troubling gap between what benefits an individual in the short term and what preserves a shared resource in the long term, a gap that voluntary self-restraint alone rarely ⑤closing.

A cluster of neurons smaller than a pea can now spontaneously ①organizing itself into layered structures that mimic, in miniature, the architecture of a developing human brain. Grown from stem cells coaxed to follow the same developmental cues that guide an embryo, these brain organoids have begun ②firing electrical signals in patterns that faintly resemble the activity recorded in an infant's brain. For researchers studying disorders such as autism or schizophrenia, this offers something long unavailable: a living model of human brain development that can be ③observed and manipulated directly, without ever touching an actual patient. Because organoids lack sensory organs, a body, or any connection to the outside world, most neuroscientists argue that the structures cannot generate anything ④resembling subjective experience, however brain-like their electrical activity may appear. Even so, the pace at which these organoids are growing more complex has convinced some ethicists that the field would benefit from ⑤establishing clear boundaries now, before the science outruns the conversation about what it means.

When a country physician named Edward Jenner noticed that milkmaids ①who had caught cowpox seemed immune to smallpox, he set in motion a medical revolution without fully understanding why it worked. For nearly two centuries afterward, vaccine development proceeded largely by trial and error, ②weakened or killing a pathogen and testing whether the resulting preparation could train the immune system without causing disease itself. This method produced genuine successes, eventually eliminating smallpox worldwide and reducing diseases such as polio and measles, but each new vaccine still ③required years of laboratory work with no guarantee of success. Advances in molecular biology eventually allowed researchers ④to isolate a single protein from a pathogen's surface rather than using the whole organism, producing vaccines with fewer side effects and a more predictable safety profile. The most recent shift, toward delivering genetic instructions rather than proteins themselves, represents the latest chapter in a story ⑤that began with an eighteenth-century doctor's curiosity about a puzzling immunity among dairy workers.

Military researchers have developed weapons systems capable of identifying and engaging targets without a human pressing the final button, a prospect that has ①alarmed arms control experts for over a decade. Advocates within defense agencies argue that autonomous systems can react faster than any human operator and may even ②reduce casualties by removing fear and fatigue from split-second decisions. Human rights organizations counter that removing a person from the final decision strips away moral responsibility at the exact moment it matters most, since a machine cannot be held ③accountable in any meaningful sense. Diplomatic negotiations toward an international treaty have repeatedly ④succeeded, partly because military powers disagree on how to define autonomy precisely enough to regulate it. Meanwhile, the underlying technology continues to ⑤advance regardless of whether the diplomacy meant to govern it keeps pace.

Facing a shortage of caregivers and a rapidly aging population, several countries have begun deploying robots designed to remind elderly residents to take medication and offer simple conversation. 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. Critics, however, worry that _______________, especially in facilities already struggling with tight budgets.

Long before humans learned to drill for oil, microorganisms had already mastered the art of converting sunlight and carbon dioxide into stored chemical energy. Modern biofuel research borrows this ability, cultivating algae or engineered bacteria in large tanks where they can be coaxed into producing oils and sugars that can be refined into fuel usable in existing engines. _______________. Engineers have also learned to tinker with the metabolic pathways of these organisms, boosting oil yield far beyond what any wild strain would naturally produce on its own. Despite this progress, producing biofuel at a cost competitive with fossil fuel remains difficult, since harvesting and processing the organisms consumes a substantial share of the energy the fuel itself will eventually provide.

Blockchain technology was originally promoted as a way to remove the need for trusted middlemen, allowing strangers to exchange value directly through a shared, tamper-resistant ledger. (A) In practice, however, a small number of large players have come to dominate many blockchain networks, controlling enough power to influence outcomes that were supposed to be decided collectively. (B) In theory, this design distributes power away from any single institution and toward the network as a whole. (C) Critics note a further irony: when something goes wrong, there is often no institution left to appeal to, since the system was designed to eliminate central authority.

A cotton plant that manufactures its own insecticide sounds like science fiction, yet it has been growing in fields around the world for decades. (A) Supporters point to yield increases and reduced pesticide spraying documented across millions of hectares, while critics worry about resistance evolving over time, which is why regulatory agencies in most countries now require extensive testing before a genetically modified crop reaches the market. (B) Other genetically modified crops carry a gene that allows them to survive direct exposure to a particular herbicide, letting farmers spray a field to kill weeds without harming the crop growing among them. (C) Scientists achieved this by isolating a gene from a soil bacterium that produces a protein toxic to specific insect pests but harmless to humans, then inserting that gene into the plant's own genome so that every cell manufactures the protective protein.

주어진 문장: As a result, the frequency of an event in someone's memory can feel like solid proof of its real-world frequency, even when the two have little real connection. Imagine two travelers preparing for the same trip: one refuses to fly after watching news coverage of a recent plane crash, while the other books a flight without hesitation. ( ① ) Statistically, air travel remains far safer than driving the same distance by car, yet vivid, emotionally charged images tend to dominate human judgment more powerfully than dry statistics ever could. ( ② ) This tendency, in which people estimate how likely an event is based on how easily examples come to mind rather than on actual data, quietly shapes countless everyday decisions. ( ③ ) News broadcasts that repeatedly feature rare disasters can leave viewers convinced that such events are common, even though official records clearly show the opposite. ( ④ ) Advertisers and politicians alike exploit this pattern, knowing that a single striking anecdote often persuades audiences more effectively than pages of careful statistics ever manage to. ( ⑤ ) Recognizing why memorable examples overshadow objective probability therefore matters, both for making sound personal choices and for noticing when public fear has drifted far from measurable reality.

주어진 문장: Businesses have since learned to design such decoys deliberately, not expecting them to be purchased at all, but hoping they will make a specific target option look far more attractive by comparison. A small bakery once sold a basic loaf of bread for three dollars and a premium loaf for six dollars, and most customers, uncertain about the added value of the pricier option, simply bought the cheaper one. ( ① ) The owner then introduced a third option: a slightly larger premium loaf priced at seven dollars, one that was clearly inferior to the six-dollar loaf in terms of value for money. ( ② ) Almost nobody chose the new seven-dollar loaf, yet sales of the six-dollar loaf rose sharply. ( ③ ) It now appeared to be an obvious bargain when placed beside the inferior newcomer. ( ④ ) This pattern, confirmed across countless pricing experiments in other markets, demonstrates that people rarely judge options in isolation; instead, they evaluate choices relative to whatever alternatives happen to be nearby. ( ⑤ )