영어 모의고사 (자동 편성)

Across the world, teenagers are chronically short on sleep, often getting two or three hours less than the eight to ten hours experts recommend for their age. Part of the problem lies in biology: as puberty begins, the body's internal clock naturally ①shifts later, making it difficult for teenagers to fall asleep before eleven at night. Yet school start times rarely adjust to this shift, forcing students to wake before their bodies are ready. The consequences extend well beyond simple tiredness. Chronic sleep loss during adolescence has been linked to ②impaired concentration, weakened memory, and a higher risk of anxiety and depression. It can also disrupt the hormones that regulate appetite, contributing to ③unhealthy weight gain over time. Some school districts have experimented with delaying start times by even thirty minutes, and early results suggest that students who gain that extra rest show ④worsened grades, better mood, and fewer tardy arrivals. Despite this evidence, changing entrenched school schedules remains a slow and ⑤contentious process.

It is often assumed that memory operates independently of bodily context, yet research suggests that this assumption deserves reconsideration. When information is learned under a particular physiological or emotional condition, retrieval tends to ①improve if that same condition is reinstated at recall, a phenomenon researchers call state-dependent memory. Individuals who study while mildly anxious, for instance, often recall material more ②accurately when tested under similarly anxious conditions than when tested while calm, even though calmness is typically considered more conducive to concentration. This finding should prompt educators to reconsider the assumption that a single optimal testing environment exists for every learner, since matching internal states across encoding and retrieval provides retrieval cues that a ③mismatched state cannot supply. Critics might argue that such effects are minor and inconsistent, yet accumulated evidence across pharmacological and emotional studies is ④easy to dismiss. Policymakers designing assessments should therefore weigh not only content difficulty but also the physiological continuity between preparation and examination, since ignoring this dimension risks ⑤underestimating certain students' actual knowledge.

Students who read many books across many different subjects often develop a habit that quieter learners sometimes lack: the habit of comparing new information with what they already know. A student who has read about ancient wars, ocean ecosystems, and modern economics can more easily notice when two different subjects share a similar pattern. This kind of connection-making is closely related to what psychologists call critical thinking, since _______________. Extensive reading also builds a large mental library of examples, which makes it easier to evaluate whether a new claim sounds reasonable or exaggerated.

Economists have long debated whether prosperity and environmental quality are fundamentally opposed, or whether the relationship between them changes shape as an economy matures. (A) In its early stages, industrializing nations prioritize output over conservation, treating clean air and water as expendable costs of development to be addressed later. Beyond a certain point, however, rising incomes generate both the technological capacity and the political will to demand stricter regulation, so degradation begins to reverse even as production keeps expanding. (B) Some scholars regard this trajectory as a reassuring paradox, suggesting that the very growth blamed for ecological harm may eventually finance its own repair. Critics, by contrast, argue that the curve rests on a narrow selection of pollutants that happen to decline with wealth, while ignoring greenhouse gases and resource depletion, which show no comparable tendency to fall. (C) The Environmental Kuznets Curve, a hypothesis borrowed from earlier theories of income inequality, proposes that pollution initially rises alongside economic growth before eventually declining once a society crosses a certain threshold of wealth.

Memory researchers have long recognized that learning is not simply a matter of accumulating information without cost. Newly acquired material can collide with what the mind already holds, producing measurable disruptions in recall. (A) Conversely, when material learned later undermines the recollection of something acquired earlier, the process is labeled retroactive interference. This second mechanism explains why switching to a new keyboard layout can temporarily impair typing on a familiar one. (B) Both processes suggest that memories compete for the same limited retrieval pathways rather than resting in isolated compartments. This insight carries real implications for how students approach studying multiple similar subjects. Instead of cramming closely related material back to back, spacing out review sessions can reduce competition between overlapping traces. Varying study contexts further helps preserve accuracy for both old and new information alike. (C) When earlier knowledge interferes with the retrieval of information learned afterward, psychologists call this proactive interference. This phenomenon explains why someone who memorized an old phone number for years may struggle to recall a new one.

Riding a bicycle is one of the most popular ways for teenagers to get around, yet many students still skip the one piece of equipment that could save their life: the helmet. (A) Wearing a helmet does not prevent a fall, but it dramatically reduces the chance of a serious head injury when one occurs. (B) A sudden pothole, a car door opening without warning, or a patch of gravel can throw even an experienced cyclist off balance in an instant. (C) Some argue that a short trip to a nearby store does not require any special protection, since the risk feels distant and unlikely, but most accidents actually happen close to home, on familiar streets where riders feel too comfortable to expect danger.

Why do people often overvalue objects they have partly built themselves, even when the finished product is objectively inferior to something they could have simply purchased? (A) This puzzle, which researchers named after a furniture retailer famous for selling items that require home assembly, challenges the standard economic assumption that value is determined solely by an object's inherent qualities. (B) In a series of experiments, participants who assembled a plain storage box were willing to pay nearly as much for their own imperfect creation as they were for a professionally built version, despite being fully aware of its flaws. (C) Labor, it seems, functions as a kind of psychological investment: once effort has been poured into a task, individuals become reluctant to judge the outcome objectively, because doing so would require admitting that their effort was partly wasted. This tendency helps explain why consumers often prefer products that demand some degree of personal assembly, even when a comparable finished item is available at a lower price and requires no time investment whatsoever.

After a viewer finishes an episode, a streaming service rarely leaves the choice of what to watch next entirely up to chance. (A) The system is not without drawbacks, however, since favoring titles similar to what a viewer already enjoys can quietly narrow someone's exposure to unfamiliar genres, directors, or cultures. (B) Instead, a recommendation algorithm compares that viewer's habits with patterns drawn from millions of other users, then ranks thousands of titles in order of predicted interest. (C) This approach keeps viewers engaged far longer than a simple list of new releases ever could, which is precisely why streaming companies invest so heavily in refining it.

Scarcity has long been recognized as one of the most effective psychological triggers in marketing. (A) For this reason, limited releases often create long lines and instant sellouts, even when the product itself is not extraordinary. (B) Consumers, fearing that they might miss a rare opportunity, tend to make quick decisions without much thought. (C) Yet this excitement can fade quickly once the item is finally obtained, leaving buyers with regret rather than satisfaction.

주어진 문장: This durability is especially evident in modern debates about whether people can truly perform two demanding tasks at once. Long before cognitive scientists possessed the tools to observe the brain directly, Donald Broadbent proposed an influential model suggesting that the human capacity to process incoming sensory information is constrained by a structural bottleneck through which only a single stream of input can pass at any given instant. ( ① ) According to this filter theory, multiple channels of stimulation, such as competing voices in a crowded room, are initially registered at a shallow, physical level, but only one channel is selected for further, meaning-based analysis while the rest are blocked from advancing beyond that early filter. ( ② ) Although later researchers challenged the rigidity of this early selection mechanism, pointing to instances in which unattended information, such as one's own name, nevertheless breaks through and captures awareness, ( ③ ) the core insight that attention imposes a genuine processing limit rather than a mere matter of willpower has remained remarkably durable. ( ④ ) This basic bottleneck principle continues to inform contemporary explanations of why multitasking so reliably degrades performance on demanding tasks. ( ⑤ )