영어 모의고사 (자동 편성)

Open a music streaming app on any given morning, and a personalized playlist is usually already waiting, ①assembled overnight from songs the algorithm predicts will match a listener's current mood. This prediction relies on far more than genre alone; the system studies skip rates, replay counts, and even the time of day a song is typically ②playing, building a remarkably detailed profile of individual taste. Listeners often praise the feature for ③introducing them to artists they never would have searched for on their own, effectively acting as a tireless music scout working around the clock. Musicians, meanwhile, have mixed feelings about this shift in how audiences ④discover new music. A song that the algorithm decides not to promote may struggle ⑤to reach listeners no matter how well it was written.

Change blindness refers to a striking limitation of human perception in which observers fail to notice substantial alterations to a visual scene, provided the change occurs ① during a brief disruption such as an eye movement or a momentary obstruction. In a now-famous demonstration, researchers showed ② participants two versions of a photograph in alternation, separated by a short blank screen, and asked them to identify what had changed. Even when an entire building disappeared or a person's clothing shifted color, many viewers stared at the picture without detecting ③ anything unusual. This phenomenon occurs because visual attention, rather than passively recording every detail like a camera, actively selects only a narrow subset of information for processing at any given moment. Whatever falls outside that narrow spotlight represents ④ only sparsely, if at all, leaving it vulnerable to being overwritten without notice. Consequently, change blindness demonstrates that our impression of a rich, complete visual world is, to a surprising extent, an illusion constructed ⑤ by the mind, not a faithful record of external reality.

For most of the twentieth century, a library was simply a quiet room full of books, and visitors were expected ①to stay silent while they searched the shelves. Today, many public libraries look completely different. Alongside the usual shelves, you might find group study rooms, comfortable sofas for reading, computer labs, and even small recording studios for podcasts. Librarians say this change ②did not happen by accident. As more information moved online, fewer people ③needing a library simply to find facts, so librarians began asking what their communities actually needed instead. The answer, in many neighborhoods, turned out ④to be space itself: a warm, free place where students could study together, job seekers could print a resume, and children could attend a story hour. Librarians respond that reading and gathering have always belonged together, and that a library survives only by ⑤changing with its readers.

For much of the twentieth century, memory researchers assumed that once a memory had been ①consolidated—transformed from a fragile, short-term trace into a stable, long-term representation—it remained essentially fixed, immune to further modification unless the underlying neural circuitry was physically damaged. This assumption, however, was ②overturned by a body of research demonstrating that the act of retrieval itself can ③stabilize a previously consolidated memory, rendering it temporarily susceptible to alteration before it is, in a sense, filed away again. During this narrow window, which typically lasts only a few hours, the memory can be ④strengthened, weakened, or even subtly distorted by new information encountered in the interim, after which it must undergo a second round of stabilization, a process now widely referred to as reconsolidation. Consequently, what we experience as a stable recollection may actually be a continuously ⑤revised construction, reshaped every time it is summoned into conscious awareness and returned to storage.

Scientists have long searched for a way to describe, in a single coherent framework, the outer limits within which human activity can safely continue without ①stabilizing the planet's fundamental systems. The concept of planetary boundaries, introduced by earth-system researchers, identifies nine interconnected processes, including climate change, biodiversity loss, and nitrogen pollution, each possessing a threshold beyond which abrupt and ②irreversible change becomes likely. Unlike conventional environmental limits, often defined locally, these boundaries are framed at a planetary scale, reflecting the idea that the Earth functions as a single ③interdependent system rather than a collection of isolated regions. Crossing one boundary, proponents argue, does not merely damage the system involved but can also ④destabilize others, since climate, oceans, and land are bound together by feedback loops that transmit disturbance across the system. Some philosophers have likened this framework to a ship's safe operating margin, within which passengers may move freely without risking the vessel's stability. Critics, however, contend that the boundaries are drawn with more ⑤confidence than the data can support.

When workers receive a five percent raise in a year when prices have climbed five percent as well, their real purchasing power has not changed at all, yet many still report _______________. This tendency to judge economic well-being by nominal figures printed on a paycheck, rather than by what that money can actually purchase, is known among economists as money illusion. Employers exploit this pattern by favoring modest nominal raises over deeper structural adjustments, since a visible increase on a payslip satisfies employees more effectively than an explanation about inflation could.

Imagine watching a fair coin land on heads five times in a row and feeling an increasingly strong intuition that the next flip is somehow due to produce tails. This intuition rests on a basic misunderstanding of probability, since each flip of a fair coin remains entirely independent of every flip that came before it. Casinos have long profited from this misconception, watching gamblers place larger bets after a losing streak simply because they mistakenly believe that a win has become statistically overdue. Economists have even documented the same error among trained professionals, including loan officers who grow more likely to approve a risky application simply because _______________.

Classical economic theory assumes that consumers evaluate every price change in the same rational way, weighing marginal benefit against marginal cost regardless of the absolute numbers involved. Behavioral economists, however, have discovered a striking exception: the moment a price drops to exactly zero, people's judgment shifts in a way that ordinary discounting cannot explain. In a well-known laboratory experiment, participants chose between two chocolates, one of higher quality priced at a small fee and one of lower quality offered for free. When both prices were merely reduced by the same amount, most participants still preferred the higher-quality option. Yet once the cheaper chocolate's price was lowered to zero, the majority abruptly switched their preference, even though the price gap between the two options had not actually changed. Researchers explain this reversal by noting that _______________.

주어진 문장: Such admiration is common, for instance, toward chess grandmasters, medical diagnosticians, or professional musicians who seem to recall vast bodies of specialized knowledge without visible strain. When people encounter an individual who appears to memorize enormous quantities of specialized information effortlessly, they often assume that person possesses an innate gift. ( ① ) Cognitive psychologists, however, contend that such feats rarely stem from raw talent alone. Instead, such feats arise from a learned skill known as chunking, whereby scattered pieces of information are consolidated into larger, meaningful units. ( ② ) A landmark study of chess players demonstrated this principle. When shown a board arranged according to plausible game positions, grandmasters reproduced the layout perfectly. ( ③ ) Yet when the same pieces were scattered randomly, their performance collapsed to the level of novices. This pattern reveals that expert memory is not larger in raw capacity but is instead organized around patterns accumulated through years of deliberate practice. ( ④ ) If chunking, rather than innate aptitude, underlies expert performance, then educators should stop treating talent as fixed and destiny-bound. ( ⑤ ) Curricula ought to be redesigned to cultivate pattern recognition explicitly, since doing so would grant far more students access to expertise once presumed reserved for the naturally gifted.

Simply naming these warning signs, however, does not guarantee that a child will know how to react in the moment. Teaching children to be cautious around strangers used to rely mainly on a single blunt warning: never talk to people you do not know. ( ① ) Child safety experts now argue that this advice is too simple to be useful, since most children will inevitably need to interact with unfamiliar adults, whether asking a store employee for help or greeting a new neighbor. ( ② ) A more effective approach focuses on specific situations rather than people in general, teaching children to recognize behavior that feels wrong, such as an adult asking a child to keep a secret from parents or offering a reason to get into a car alone. ( ③ ) Role-playing these scenarios in advance helps children respond quickly under pressure, rather than freezing because the situation feels unfamiliar and confusing. ( ④ ) Experts also emphasize that children should be taught they will never get in trouble for refusing an adult's request or for loudly saying no in public. ( ⑤ ) This is because hesitation caused by politeness can cost precious seconds in a genuine emergency.