영어 모의고사 (자동 편성)

A liver no longer has ①to sit inside a human body to be studied closely. By coaxing stem cells ②organizing themselves within a nutrient-rich gel, scientists can now grow miniature three-dimensional structures called organoids, which reproduce much of the architecture and function of a real organ despite being no larger than a grain of rice. Unlike flat cultures ③grown on a plastic dish, which lose many of the cues that guide normal development, organoids let cells interact in three dimensions much as they would inside the body, yielding tissue ④that behaves in strikingly realistic ways. This fidelity has made organoids invaluable for testing how a drug affects human tissue before any patient is exposed, ⑤sparing researchers much of the burden of relying on animal models alone.

Every time a smartphone connects to a cell tower or a Wi-Fi network, it ①quietly records a data point that can later be pieced together into a detailed map of where its owner has been. Most users agree to this tracking without reading the fine print, assuming that a single company's database poses ②little threat. The real danger, however, emerges when location data from multiple sources is combined. A pattern that reveals a person's home, workplace, and daily route can ③expose far more than any single app ever intended to share. Companies often argue that anonymized data cannot be traced back to individuals, yet researchers have ④repeatedly shown that a handful of location points is enough to identify a specific person with striking accuracy. As a result, privacy experts increasingly insist that location data deserves ⑤minimal legal protection, similar to that of medical records.

Working memory refers to the mental workspace in which information is temporarily held and manipulated while a person performs a cognitive task. Such tasks include solving an arithmetic problem, following a rapid conversation, or holding a phone number in mind before dialing it. In the mid-twentieth century, the psychologist George Miller proposed that this workspace could accommodate roughly seven discrete items. His claim proved so influential that it became widely known as the magic number seven. Subsequent research, however, revealed that Miller's estimate was somewhat generous, since it failed to account for the complexity of the material being remembered. Nelson Cowan later argued that when rehearsal strategies are prevented and attention is tightly controlled, _______________. This discrepancy suggests that what earlier studies had measured was not raw storage capacity itself but a hybrid quantity inflated by clever strategies. Contemporary psychologists therefore distinguish between the fixed limit of working memory and the flexible techniques that allow individuals to transcend that limit.

When engineers design the software that controls a self-driving car, they face a question philosophers have debated for decades: should a crashing vehicle protect its own passenger, or minimize total harm even at the passenger's expense? Surveys reveal an uncomfortable contradiction: most people say a car should be programmed to save the greater number of lives, yet the same people admit they would never buy a vehicle designed to sacrifice its own owner. This suggests that _______________. Manufacturers, regulators, and philosophers must instead agree on transparent rules before autonomous vehicles are allowed to make such decisions.

Long before humans learned to drill for oil, microorganisms had already mastered the art of converting sunlight and carbon dioxide into stored chemical energy. (A) 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. (B) Unlike crops grown for corn-based ethanol, which compete directly with food production for arable land, many algae strains can thrive in shallow ponds, wastewater, or even coastal seawater unsuitable for conventional agriculture. (C) Engineers have also learned to boost oil yield through genetic tinkering, yet 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.

Among the many strategies proposed to remove carbon dioxide from the atmosphere, one of the oldest draws on an agricultural technique predating modern industry, converting organic material into a stable form of charcoal known as biochar. (A) When mixed into farmland, biochar also improves soil structure, retaining moisture and nutrients otherwise lost, which can boost crop yields in depleted soils. For example, farmers cultivating nutrient-poor tropical soils have reported measurable increases in productivity after adding biochar. (B) Biochar is produced through pyrolysis, a process in which crop residues or wood chips are heated in an environment with little or no oxygen, preventing the material from burning away as in an open fire. This process leaves behind a carbon-rich solid that resists decomposition far longer than raw organic matter, locking carbon in a form remaining stable in soil for centuries. (C) Nevertheless, researchers caution that the climate benefits of biochar depend on the feedstock and method used, since poorly managed pyrolysis can release as much carbon as it sequesters, undermining its own purpose.

Suppose you meet a quiet, gentle man who speaks softly, tends a small garden, and organizes his bookshelf with meticulous care. (A) This judgment, however, ignores a crucial fact: truck drivers vastly outnumber florists in almost every country, which means that, statistically, he is far more likely to belong to the larger group regardless of how well he fits the flower-shop image. (B) Relying on resemblance to a familiar category rather than on underlying numerical proportions, known among researchers as representativeness, leads people to overlook these base rates almost automatically. Even trained professionals, who should know better, often fall into the same trap when a vivid description feels more convincing than plain statistics. Consequently, teaching people to pause and ask how common something actually is, instead of merely how typical it appears, can meaningfully improve the accuracy of everyday predictions and reduce costly errors in judgment. (C) Asked whether he is more likely a florist or a truck driver, most people instinctively choose florist, since his personality matches the stereotype so neatly.

주어진 문장: Taken together, these shortcomings suggest that biodegradability alone cannot guarantee a meaningful reduction in plastic pollution. 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. ① Manufacturers derive these materials from renewable resources such as corn starch, blending them with additives that accelerate microbial breakdown once discarded. ② However, their environmental benefits are often exaggerated, largely because decomposition depends on specific conditions rarely found outside industrial composting facilities. ③ 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. ④ In addition, when mixed with conventional plastics in recycling streams, they can contaminate the process, weakening the quality of materials produced afterward. ⑤ 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. ① ② ③ ④ ⑤

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 )

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 )