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.

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

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 ①cheaply than required can sell surplus allowances to firms facing higher reduction costs. Proponents argue that this flexibility lets society reach a given environmental target at the ②lowest overall cost, 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 ③depressed 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 ④collapsed, 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 ⑤undermining the cost-effectiveness for which trading is valued.

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.

For patients born with a single faulty gene, the disease has traditionally been treated ①indirectly, managing symptoms for a lifetime rather than addressing the genetic error itself. Gene therapy attempts something more ambitious: delivering a corrected copy of the gene directly into a patient's cells, often using a ②reinforced 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 had always lacked, in some cases ③reversing symptoms that medication alone had never been able to touch. Early trials were haunted by serious ④setbacks, including cases in which the delivery virus triggered a dangerous immune reaction. Refined delivery methods have since made the treatment considerably ⑤safer, and regulators in several countries have now approved gene therapies for a small but growing number of rare inherited disorders.

A single fertilized egg eventually gives rise to every cell type in the human body, from neurons to bone, a feat that has ①fascinated biologists for more than a century. Embryonic stem cells retain much of that original ②versatility, capable in principle of developing into almost any tissue, which is why researchers have long viewed them as a promising raw material for repairing damaged organs. Because harvesting these cells traditionally required destroying a human embryo, the research ③eliminated ethical objections fierce enough to slow funding and legislation in several countries for years. A breakthrough arrived when scientists discovered that ordinary adult skin cells could be reprogrammed into a state resembling embryonic versatility without ever touching an embryo. These induced pluripotent cells have not entirely erased the ethical debate, but they have opened a path for stem cell research that far more scientists and funding agencies are ④willing to ⑤support.

A liver no longer has to sit inside a human body to be studied closely. By coaxing stem cells to organize 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. Unlike flat cultures grown on a plastic dish, organoids let cells interact in three dimensions much as they would inside the body, yielding tissue that behaves in strikingly realistic ways. This fidelity has made organoids invaluable for testing how a drug affects human tissue before any patient is exposed, _______________. Some laboratories have even grown organoids from a single patient's own cells, raising the possibility of trialing a treatment on a miniature copy of that patient's organ before committing to an actual course of therapy.

Imagine a distant planet identical to Earth in every visible respect, except that the clear liquid its inhabitants call "water" is not H2O but a different compound, XYZ, that happens to look, taste, and behave exactly the same. (A) Even though the two speakers hold identical thoughts and mental images when they use the word, their statements refer to two different substances, because the underlying chemical composition fixes what a word ultimately picks out. (B) When an Earthling and a Twin Earthling each say the word "water," they seem to mean the same thing, since neither could tell the substances apart without a chemistry lab. (C) Philosopher Hilary Putnam used this scenario to argue that the meaning of a word is not determined solely by what happens inside a speaker's head.

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. (A) 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. (B) 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. (C) 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, a speed that has convinced many researchers the same platform could eventually fight diseases far beyond infectious illness.

Philosopher Robert Nozick devised a thought experiment to test a simple hedonist assumption: that pleasure and the avoidance of pain are all that ultimately matter to human beings. (A) If the hedonist assumption were correct, then everyone should rush to connect themselves permanently to such a machine, since it could deliver a lifetime of perfectly satisfying experiences. (B) Yet when people actually consider the offer, most hesitate and many refuse outright, a reluctance Nozick took as evidence that human beings care about more than the quality of their internal sensations. (C) He asked readers to imagine a machine capable of producing any experience they desired, from writing a great novel to falling in love, all indistinguishable from reality once they were plugged in.