영어 모의고사 (자동 편성)

When people look back on a multi-day journey, they rarely ①recall every hour with equal clarity; instead, memory tends to compress the entire experience into just a few representative moments. Psychologists have found that two points carry disproportionate weight in this process: the single moment when emotion, whether joy or discomfort, ②reached its highest intensity, and whatever happened right before the experience concluded. Consider two hikers who complete an identical five-day trek. The first finishes with a grueling, rain-soaked final climb, while the second enjoys a calm, scenic descent on the last afternoon despite having ③endure an equally difficult ascent earlier in the trip. Even though both hikers faced comparable hardship overall, the second is far more likely to remember the journey fondly, simply because the trip ④ended pleasantly. This pattern reveals that overall satisfaction is not calculated as an average of every experienced moment; rather, it is shaped disproportionately by whichever moments ⑤felt most intense and by however the experience happened to end.

A single fertilized egg eventually ①gives rise to every cell type in the human body, from neurons to bone, a feat that has fascinated biologists for more than a century. Embryonic stem cells retain much of that original versatility, capable in principle of ②develop 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 ③destroying a human embryo, the research provoked 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 ④reprogrammed, through the introduction of a handful of specific genes, 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 willing ⑤to support.

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.

When engineers design the software that controls a self-driving car, they inevitably face a question that philosophers have debated for ①decades. If a crash becomes unavoidable, should the vehicle protect its own passenger at all costs, or should it be programmed to ②minimize total harm, even if that means steering toward the person inside? Surveys reveal an uncomfortable ③contradiction: 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 gap between the ideal and the personal choice suggests that ethical programming cannot be settled by public opinion alone. Manufacturers, regulators, and philosophers must instead agree on ④transparent rules before autonomous vehicles are ⑤forbidden to make such decisions on the road.

When people evaluate their personal contribution to water scarcity, they often consider only the water that flows directly from household taps, overlooking a far larger quantity consumed indirectly through the goods they purchase. The water footprint, a concept that extends this ①broad view, measures the total volume of freshwater used to produce the goods and services an individual or a nation consumes. Central to this concept is the notion of virtual water, the water embedded ②invisibly within a product, from irrigating cotton fields to livestock raised for meat. For instance, producing a kilogram of beef can require several thousand liters of water, whereas a kilogram of vegetables typically demands a fraction of that amount. Nations that import water-intensive goods rather than producing them domestically are importing virtual water from regions that may face ③severe shortages. Critics caution, however, that focusing ④exclusively on aggregate volume can mislead policymakers, since a liter of water drawn from a region suffering drought carries far greater consequences than one drawn from a water-⑤abundant area.

Suppose a mysterious being with a near-perfect track record of predicting human choices presents a player with two boxes. Box A always contains a visible thousand dollars, while Box B contains either a million dollars or nothing at all, depending on a prediction the being made before the game even began. If the being predicted the player would take only Box B, it ①emptied the box entirely; if it predicted the player would take both boxes, it left Box B empty. The player may choose to take only Box B, or to take both boxes, and the prediction has already been made and cannot change. One line of reasoning says taking both boxes is ②strictly better, since whatever is already inside the boxes cannot be altered by the player's choice at this point. A second line of reasoning says taking only Box B is better, since the being's near-perfect ③accuracy means that choosing both boxes almost guarantees an empty Box B. This apparent ④conflict between two seemingly sound arguments has made the puzzle a lasting ⑤challenge for decision theory.

When an oil tanker ruptures and crude spreads across open water, cleanup crews increasingly reach not only for skimmers and floating booms but also for something far smaller: bacteria that eat oil. Certain naturally occurring microbes possess enzymes capable of breaking hydrocarbon molecules apart, using the carbon as an energy source and gradually converting a toxic slick into carbon dioxide and harmless byproducts. Bioremediation, as this approach is called, works far more slowly than mechanical cleanup, often taking months rather than days, but it can reach contamination trapped in soil or sediment that skimmers and booms can never reach. Scientists have learned to accelerate the process by adding nutrients that help native microbial populations multiply faster, or in some cases by introducing engineered strains selected specifically for their appetite for a particular pollutant. _______________.

When people are asked to judge how risky or beneficial a particular technology is, they rarely conduct anything resembling a careful cost-benefit analysis. (A) This mental shortcut, known as the affect heuristic, produces a curious pattern that traditional risk theory struggles to explain: activities people like tend to be judged as both safer and more beneficial, while activities they dislike are judged as both riskier and less beneficial, even when no logical relationship between risk and benefit exists. (B) Instead, they consult a quick emotional impression, an instinctive sense of whether the technology feels good or feels bad, and let that impression guide their entire judgment. (C) For example, when researchers presented a fictional industrial chemical alongside a brief description emphasizing its convenience, participants rated it not only as more useful but also, illogically, as less dangerous. Because emotional impressions form so rapidly and feel so trustworthy, correcting for this heuristic requires deliberate effort; simply presenting more accurate statistics to already anxious or enthusiastic audiences rarely changes their underlying judgment.

Military researchers have developed weapons systems capable of identifying and engaging targets without a human pressing the final button. (A) Human rights organizations counter that removing a person from the final decision strips away moral responsibility at the exact moment it matters most. (B) Advocates within defense agencies argue that autonomous systems can react faster than any human operator and may even reduce casualties. (C) Diplomatic negotiations toward an international treaty have repeatedly stalled, partly because military powers disagree on how to define autonomy precisely enough to regulate it.

Because no alternative is ever removed, defenders insist that the intervention remains fully compatible with individual liberty. One of the most frequently cited nudge programs involves the redesign of cafeteria layouts to encourage healthier eating among students. ( ① ) Rather than banning unhealthy snacks outright, administrators simply relocate them to less convenient shelves while placing fruit and vegetables within easy reach. ( ② ) Students remain completely free to seek out the relocated items if they wish to do so. ( ③ ) Data collected across numerous schools show that this modest rearrangement increases the selection of healthier options by a meaningful margin, without any accompanying complaints about restricted choice. ( ④ ) Skeptics nonetheless point out that the very effectiveness of such nudges depends on exploiting the same mental shortcuts, such as convenience and visibility, that lead people to make less healthy choices in the first place. ( ⑤ ) Whether this exploitation is ethically troubling or simply a pragmatic use of known psychological tendencies remains a matter of ongoing disagreement.