영어 모의고사 (자동 편성)

Researchers who ① study teenagers have found a strong link between how well students sleep and how well they perform in school. Students who sleep fewer than seven hours a night tend to score lower on tests of memory and attention than those who ② sleep eight or nine hours, even when the two groups study for the same number of hours. One explanation is that sleep plays an active role in learning: during certain stages of sleep, the brain replays and strengthens information ③ encountered during the day, converting fragile short-term memories into more durable long-term ones. When sleep is cut short, this consolidation process is interrupted before it can finish, so material that seemed well understood the night before often ④ feel unfamiliar the next morning. For this reason, some schools have begun rethinking early start times, reasoning that an extra hour of sleep might do more for test scores than an extra hour of studying ever ⑤ could.

Aerobic exercise, such as jogging, swimming, or cycling at a steady pace, strengthens the heart by forcing it to pump ① larger volumes of blood with each beat. Over weeks of consistent training, the heart gradually enlarges and becomes more efficient, meaning it can deliver the same amount of oxygen to working muscles while beating ② fewer times per minute. This adaptation explains why trained athletes often have a much ③ lower resting heart rate than sedentary individuals of the same age. Beyond the heart itself, aerobic activity encourages the body to build new capillaries within muscle tissue, ④ worsening the delivery of oxygen and nutrients at a cellular level. Researchers have also found that regular aerobic exercise ⑤ reduces inflammation throughout the body and improves the way cells respond to insulin.

Ambitious young athletes and the parents who support them sometimes assume that more training automatically produces ① better results, a belief that occasionally leads to a condition known as overtraining syndrome. Unlike ordinary fatigue that resolves after a few days of rest, overtraining syndrome develops ② rapidly within a single day of insufficient recovery, eventually producing persistent exhaustion, declining performance despite continued hard work, and increased susceptibility to illness and injury. Adolescents may be especially vulnerable, since their bodies are simultaneously coping with the physical demands of growth and the added stress of intensive training schedules. Warning signs are often ③ subtle at first, including disrupted sleep, irritability, and a loss of enthusiasm for a sport the athlete once genuinely enjoyed. Recovery from full-blown overtraining syndrome can take ④ months rather than days, which is why sports medicine specialists now emphasize monitoring early warning signs and scheduling rest before symptoms ⑤ worsen.

Planning a multi-city trip once meant hours spent comparing flight schedules, reading hotel reviews, and mapping out which sights were close enough to visit in a single day. AI travel planners now ① compress much of that work into a short conversation, asking about a budget, a travel style, and a handful of preferences before generating a full day-by-day itinerary within minutes. The tool draws on enormous amounts of data to suggest a route that avoids obvious ② scheduling conflicts. Many travelers appreciate having a solid starting point rather than a ③ blank page. Still, seasoned travelers warn that these itineraries can feel oddly ④ unique, often steering users toward the same popular landmarks that every other AI-generated plan recommends, while ⑤ overlooking smaller, lesser-known places that a knowledgeable local guide might have suggested instead.

The twenty-hour rule proposes that years of practice are not needed to become skilled at a new activity. Only about twenty hours of effort are needed to reach a ①worthless level. Unlike theories claiming true mastery requires ten thousand hours, this rule targets a more ②modest goal. That goal is simple competence for everyday use. According to supporters, practicing any new skill produces the ③fastest visible improvement, since a beginner has room to grow. Advocates emphasize that the twenty hours must be ④deliberate and focused, broken into short daily sessions rather than one long stretch. The hours should be aimed at fixing weaknesses rather than ⑤repeating what one already knows.

Time-management researchers frequently mention a principle known as Parkinson's Law, which states that work ①expands to fill the time available for its completion. According to this idea, a task that could be finished in one hour will often stretch to fill an entire afternoon if that much time is scheduled for it. Students who set ②vague deadlines frequently experience this effect, spending extra hours refining a report that was already ③complete. Employees given a full week for a simple project may also delay meaningful progress until the final days, even though the actual work requires far ④more effort. This pattern happens partly because people unconsciously adjust their pace to match perceived urgency. Setting shorter, more specific deadlines can ⑤counter this tendency, forcing tasks to fit within a tighter and more realistic window.

Sociologist Mark Granovetter introduced an idea that seems contradictory at first glance, known as the strength of weak ties. According to this theory, people who see each other only occasionally, called weak ties, often provide more valuable information than close friends or family members, who are considered strong ties. This happens because strong ties tend to share the same social circles and, therefore, already possess similar knowledge. Weak ties, in contrast, move within different networks, which allows them to introduce ideas or opportunities that would otherwise remain unknown. For example, a former classmate rarely contacted might mention a job opening unavailable through one's immediate circle. Social media platforms have made maintaining such connections remarkably easier, letting users keep hundreds of loose acquaintances active without frequent face-to-face meetings. Consequently, these platforms _______________.

FOMO refers to the anxious feeling that arises when people believe they are missing out on rewarding experiences that others are having. (A) For instance, a student who sees photos of a gathering she missed may feel sudden regret, even though the event is already over. (B) This feeling often leads people to check their phones compulsively, which makes it hard to focus on tasks at hand. (C) Such experiences are common among heavy social media users, who constantly compare their lives with the curated posts of others.

Climate change deniers often seem to ignore evidence that contradicts their views, and psychologists have a specific explanation for this behavior. (A) For example, someone whose job depends on fossil fuels may search for reasons to doubt the data, even while insisting that they respect science. (B) This concept, called motivated reasoning, describes how people process information in ways that protect their existing beliefs and lifestyles rather than pursue objective truth. (C) Rather than being a simple failure of intelligence, this pattern reflects a well-documented psychological tendency studied for decades.

주어진 문장: This feeling is not simply nervousness about being alone, but a specific condition that researchers have begun to study closely. Many people feel a sudden wave of anxiety when their smartphone battery is nearly dead or they have left it at home. ( ① ) This intense discomfort, known as nomophobia, is short for "no-mobile-phone phobia," a term describing the fear of losing connection to one's phone. ( ② ) Nomophobia involves physical symptoms, including a racing heart, sweating, and restlessness, whenever a person cannot check messages or social media. ( ③ ) Researchers explain that this fear develops because smartphones have become tightly linked to social belonging; missing a notification can feel like being cut off from friends. ( ④ ) For example, some students check their phones dozens of times an hour, even during class, just to confirm nothing important has been missed. Therefore, experts suggest gradually reducing phone checks to weaken this anxious dependence. ( ⑤ ) Recognizing nomophobia as a real psychological pattern is the first step toward a healthier relationship with technology.