영어 모의고사 (자동 편성)

A cluster of neurons smaller than a pea can now spontaneously organize itself into layered structures that ①mimic, 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 firing electrical signals in patterns that ②sharply 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 observed 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 ③cannot generate anything resembling subjective experience, however brain-like their electrical activity may appear. Even so, the pace at which these organoids are growing more ④complex has convinced some ethicists that the field would benefit from establishing clear ⑤boundaries now, before the science outruns the conversation about what it means.

Philosophers often pair the classic trolley problem with a companion case designed to test whether our moral intuitions are actually ①consistent. Imagine a brilliant surgeon who has five patients, each dying from the failure of a different organ, and one healthy visitor in the waiting room whose organs happen to be a perfect ②match for all five. If the surgeon secretly killed the healthy visitor and transplanted the organs, five lives would be saved at the cost of one, exactly the same arithmetic used to justify diverting a runaway trolley onto a track with a single worker. Yet almost everyone who accepts the trolley diversion ③recoils immediately at the idea of the surgeon cutting up an unwilling patient, even though the numbers are identical in both cases. Philosophers use this contrast to argue that outcomes alone can ④fully explain our moral judgments, since something about directly using a person's body as a mere means appears to matter deeply to most people's sense of ⑤right and wrong.

Biodegradable plastics have been promoted as a promising solution to plastic waste, since they are designed to decompose into natural substances rather than persist for centuries. Manufacturers derive these materials from renewable resources such as corn starch, blending them with additives that accelerate microbial breakdown once discarded. However, _______________. For example, a bag labeled biodegradable may take years, not the weeks advertised, to break down in a landfill or ocean, where temperature and microbial activity remain low. In addition, when mixed with conventional plastics in recycling streams, they can contaminate the process, weakening the quality of materials produced afterward. Some engineers therefore compare biodegradable plastics to a bridge that leads nowhere unless paired with infrastructure that completes the journey. Ultimately, realizing their genuine potential requires not only technological refinement but also facilities capable of providing the precise conditions decomposition demands.

The ancient puzzle known as the ship of Theseus asks a deceptively simple question. If every plank of a wooden ship is replaced one by one over many years, is the vessel that eventually results still the same ship it once was? Most people's first instinct is to answer yes, since each individual replacement seems too small to erase the ship's identity. The puzzle grows far sharper, however, once a second twist is introduced. Suppose a careful collector gathered every discarded plank and reassembled them into a second vessel, built exactly as the original once stood. Two ships would then exist side by side, each with an equal claim to being the genuine one, and no obvious way to decide between them. Philosophers return to this old story again and again, not because they care about timber, but because it forces us to ask whether identity depends on continuous material, continuous form, or _______________.

Emissions trading, a market-based mechanism for curbing greenhouse gases, allows governments to set an overall limit on carbon output while letting firms trade permits within that limit. Under this system, known as cap-and-trade, companies that cut emissions more cheaply than required can sell surplus allowances to firms facing higher reduction costs. Proponents argue that _______________, since abatement shifts toward whoever can achieve it most economically. Critics, however, contend that trading schemes frequently allocate too many permits, a flaw that has historically depressed carbon prices and blunted incentives to invest in cleaner technology. For example, early phases of several regional markets granted allowances so generously that permit prices collapsed, leaving polluters with little pressure to change their practices. Consequently, many economists now advocate combining trading with a price floor, a minimum permit price that keeps the market from collapsing during weak demand, thereby preserving the cost-effectiveness for which trading is valued.

The label "biodegradable," in other words, can be far more conditional than consumers realize. A plastic bag that fully decomposes within months rather than lingering for centuries sounds almost too convenient to be real, yet certain bioplastics on the market do exactly that under the right conditions. ( ① ) Unlike conventional plastic, derived almost entirely from petroleum, many bioplastics are synthesized from renewable feedstocks such as corn starch or sugarcane, sometimes with the help of bacteria engineered to produce plastic-like polymers as a byproduct of their metabolism. ( ② ) Not every bioplastic biodegrades quickly, however. ( ③ ) Some marketed as eco-friendly break down only in industrial composting facilities that reach conditions rarely found in a backyard compost heap or the open ocean. ( ④ ) Critics point out that growing crops for bioplastic production can compete with food crops for farmland and water, complicating the assumption that a biological origin automatically makes a material more sustainable. ( ⑤ ) Researchers are now exploring bioplastics made from agricultural waste and algae instead of dedicated crops, hoping to sidestep this competition for land while preserving the benefits that first made bioplastics appealing.

The secret lies not in the cotton plant itself but in a borrowed piece of bacterial DNA. A cotton plant that manufactures its own insecticide sounds like science fiction, yet it has been growing in fields around the world for decades. ( ① ) Scientists achieved this by isolating a gene from a soil bacterium that produces a protein toxic to specific insect pests but harmless to humans. ( ② ) That gene is then inserted into the plant's own genome so that every cell manufactures the protective protein. ( ③ ) 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. ( ④ ) Supporters point to yield increases and reduced pesticide spraying documented across millions of hectares, while critics worry about weeds and insects evolving resistance to these built-in defenses over time, much as bacteria evolve resistance to antibiotics. ( ⑤ ) Regulatory agencies in most countries now require extensive testing before a genetically modified crop reaches the market, evaluating everything from its nutritional content to its potential effects on nearby ecosystems.

Janis identified several warning signs, including an illusion of invulnerability that leads a group to underestimate risk, pressure on dissenters to fall in line, and self-appointed mindguards who shield the group from information that might disrupt its confidence. Even highly capable individuals can make disastrous collective decisions once they are absorbed into a tightly knit group, a phenomenon psychologist Irving Janis termed groupthink. ( ① ) Within cohesive committees, boards, and advisory councils, members often prioritize consensus and group harmony over a rigorous evaluation of alternatives, silencing doubts rather than risking the discomfort of dissent. ( ② ) Sociologists extend this analysis beyond small committees, noting that entire organizations can develop cultures that reward conformity and punish employees who raise inconvenient questions. ( ③ ) Historical inquiries into policy failures and corporate disasters frequently reveal that critical information existed within the organization but never reached decision makers. ( ④ ) This was not because it was hidden, but because no one felt safe enough to voice it aloud. ( ⑤ )

주어진 문장: Although constructing a passive house initially costs more than building a conventional home, the savings accumulated over decades of reduced energy bills often outweigh this upfront investment. As buildings account for a substantial share of global energy consumption, architects have increasingly turned to a design philosophy known as the passive house standard, which minimizes energy demand through the building's own structure rather than through mechanical systems. ① Central to this approach is airtight construction, in which continuous insulation and sealed joints prevent conditioned air from leaking outward, thereby reducing the heating and cooling loads conventional buildings require. ② Triple-glazed windows, oriented to capture sunlight in winter while shading interiors in summer, further stabilize indoor temperatures without relying heavily on furnaces or air conditioners. ③ Ventilation systems equipped with heat exchangers also recover warmth from outgoing air, transferring it to incoming air so that comfort is maintained without excessive energy use. ④ For example, some passive houses built in cold climates have reduced heating costs by more than ninety percent. ⑤ Consequently, many architects regard passive house design not as a luxury for wealthy homeowners but as a practical model capable of reshaping mainstream construction. ① ② ③ ④ ⑤

Something has clearly gone wrong along the way, since no reasonable person would call one grain of sand a heap. Consider a large heap containing ten thousand grains of sand. ( ① ) Nearly everyone agrees that removing a single grain from such a heap leaves another heap behind; surely one grain could never make the difference between a heap and a non-heap. ( ② ) Yet if this principle is applied repeatedly, grain by grain, the heap eventually shrinks to a single lonely grain, or even to no grains at all. ( ③ ) Logic alone seems to force us to accept that this final result still counts as a heap. ( ④ ) Pinpointing exactly which single removal transformed a heap into a non-heap seems impossible. ( ⑤ ) The puzzle exposes a deep discomfort with vague terms like "heap," "tall," or "bald," concepts that seem to admit no sharp boundary yet are used confidently in everyday language.