영어 모의고사 (자동 편성)

For patients born with a single faulty gene, the disease has traditionally ①being treated indirectly, managing symptoms for a lifetime rather than addressing the genetic error itself. Gene therapy attempts something more ambitious: ②delivering a corrected copy of the gene directly into a patient's cells, often using a disabled virus stripped of its ability to cause illness as a delivery vehicle. Once inside the nucleus, the corrected gene can begin producing the protein the patient's body ③had always lacked, in some cases reversing symptoms that medication alone had never been able to touch. Early trials were haunted by serious setbacks, including cases in which the delivery virus triggered a dangerous immune reaction or ④inserted the new gene in a location that disrupted other essential genes. Refined delivery methods have since made the treatment considerably safer, and regulators in several countries have now approved gene therapies for a small but ⑤growing number of rare inherited disorders.

Desalination, the process of removing dissolved salts from seawater to produce fresh water, has increasingly been adopted by coastal regions facing chronic water ①scarcity. Most modern facilities rely on reverse osmosis, a technique in which seawater is forced through membranes whose microscopic pores block salt while letting water molecules pass. Because this method ②consumes far less energy than the thermal distillation once dominant in the industry, it has become the preferred choice for large-scale plants. Nevertheless, desalination remains an inherently costly and environmentally burdensome solution, a fact often overlooked amid enthusiasm for ending water shortages. For instance, the process generates a ③concentrated byproduct called brine, which, when discharged without adequate dilution, can raise local salinity to levels that harm marine life. Pumping seawater through membranes at high pressure also demands substantial electricity, so plants powered by fossil fuels can ④alleviate the emissions that intensify drought. Therefore, engineers increasingly argue that desalination should be treated not as a stand-alone remedy but as one component of a ⑤broader conservation strategy.

Sociologist Mark Granovetter challenged a common assumption when he found that job seekers were more likely to hear about new opportunities from casual acquaintances than from close friends and family. This finding, published as the strength of weak ties, rests on a structural insight: close friends tend to belong to the same tight social circle and therefore already share most of the same information, whereas casual acquaintances typically move in ①different circles and can act as bridges to information a person would otherwise never encounter. Weak ties, precisely because they connect otherwise ②separate networks, transmit novel information more efficiently than the redundant, overlapping ties within a tightly bonded group. Granovetter's insight has since been applied well beyond job searches, informing research on how innovations ③spread, how political movements recruit new members, and how epidemics travel through a population, suggesting that casual relationships may ④quietly determine access to opportunities that shape an entire career, a conclusion most researchers now consider entirely ⑤implausible.

Traditional industrial systems have relied on a linear model of production, in which raw materials are extracted, transformed into goods, and eventually discarded as waste. This approach treats natural resources as if ①unlimited and disposal as if costless. A circular economy proposes an alternative framework in which materials are kept in continuous use through reuse, repair, and recycling, thereby ②reducing the extraction of virgin resources. Central to this model is the notion that waste, rather than being an inevitable byproduct, can be redesigned as a resource for another process, much as fallen leaves nourish the trees that shed them. For example, manufacturers design products so that components can be disassembled and reused in new items once their original function ends. Some companies also lease equipment instead of selling it outright, retaining responsibility for refurbishment. Because such practices lessen dependence on finite raw materials, they ③increase the environmental damage caused by mining. Consequently, the circular economy is increasingly regarded as a ④viable economic strategy that ⑤conserves resources for future generations.

Economists traditionally measured a community's wealth in terms of factories, income, or infrastructure, yet sociologists increasingly point to a less visible resource: social capital, the networks of trust and reciprocity that allow people to cooperate for mutual benefit. Robert Putnam popularized the concept by documenting a decline in civic participation, a trend he captured in the phrase bowling alone. Communities rich in social capital tend to enjoy lower crime and more effective local government, because neighbors who know and trust one another can coordinate informally without relying entirely on formal institutions. However, _______________. For this reason, researchers increasingly distinguish between bonding capital, which strengthens ties within a single group, and bridging capital, which connects otherwise separate communities.

When a resource is shared among many users, none of whom bears the full cost of its depletion, _______________. This dynamic, famously labeled the tragedy of the commons, describes how shared pastures and fisheries can be degraded even when every participant privately understands the danger of overuse. A single herder who adds one more animal to a communal pasture gains the entire benefit of that addition, whereas the resulting damage to the grass is shared among other herders who depend on the land. Because self-interest offers no incentive to restrain consumption unilaterally, the resource tends to be exhausted long before any user intends such an outcome. For decades, economists assumed that only two remedies existed: strict regulation or the conversion of shared resources into private property. Elinor Ostrom challenged this assumption, however, by documenting communities that had sustainably managed fisheries and forests for generations through locally devised rules and mutual monitoring rather than external control.

Social mobility refers to the movement of individuals or families between different positions within a society's system of stratification, whether upward, downward, or sideways. (C) Structural mobility, caused by large-scale economic shifts such as the growth of new industries, must be distinguished from individual mobility, which results from a single person's particular choices. (A) Sociologists distinguish intragenerational mobility, changes within a single person's lifetime, from intergenerational mobility, differences between the social position of parents and their children. (B) Research across many nations has found that education functions as the primary channel of upward mobility, yet access to quality education is itself unevenly distributed.

Philosophers often pair the classic trolley problem with a companion case designed to test whether our moral intuitions are actually consistent. (A) Philosophers use this contrast to argue that outcomes alone cannot fully explain our moral judgments; something about directly using a person's body as a mere means appears to matter deeply. (B) Yet almost everyone who accepts the trolley diversion recoils immediately at the idea of the surgeon cutting up an unwilling patient, even though the numbers are identical in both cases. (C) Imagine a brilliant surgeon who has five patients, each dying from the failure of a different organ, and one healthy visitor whose organs happen to be a perfect match for all five, so that killing the visitor would save five lives at the cost of one.

Erving Goffman extended this framework with his dramaturgical approach, comparing social life to a theatrical performance in which individuals manage impressions, present different faces in different settings, and carefully control what audiences see backstage versus onstage. Symbolic interactionism approaches society not as a fixed structure imposed from above but as something continuously constructed through everyday face-to-face interaction, in which individuals interpret and respond to the symbolic meanings that objects, actions, and other people hold for them. ( ① ) Sociologist George Herbert Mead argued that the self itself emerges through this interactive process, as individuals learn to see themselves from the perspective of others. ( ② ) He called this process the internalization of the generalized other, a composite sense of society's expectations. ( ③ ) Unlike structural theories that emphasize large institutions, symbolic interactionism focuses on the small, repeated exchanges through which shared meaning is negotiated. ( ④ ) Even stable social structures, in this view, ultimately depend on countless everyday interactions. ( ⑤ )

The cell then acts as a temporary factory, translating that instruction into an actual protein without ever altering the cell's permanent genetic code. For decades, most vaccines worked by injecting a weakened or inactivated version of a pathogen, coaxing the immune system into recognizing an enemy it had never truly fought. ( ① ) mRNA vaccines take a fundamentally different route, delivering only a short genetic instruction wrapped in a protective lipid capsule, one that tells the body's own cells how to manufacture a single harmless piece of a virus's outer surface protein. ( ② ) Once those cells display the fragment, the immune system learns to recognize it as foreign and builds a defense, without ever having encountered the actual pathogen. ( ③ ) Because the vaccine contains no live virus and cannot alter a cell's own DNA, developers can redesign the genetic instructions within weeks whenever a pathogen mutates. ( ④ ) This is far shorter than the years-long process required for traditional vaccines. ( ⑤ ) This speed, first proven on a global scale during a recent pandemic, has convinced many researchers that the same platform could eventually be adapted to fight diseases far beyond infectious illness, including certain cancers.