영어 모의고사 (자동 편성)

Have you ever ①feel a boring class lasted forever while an exciting weekend disappeared in an instant? This common experience reflects what psychologists call the distortion of time perception: subjective time can ②differ from actual clock time. Researchers explain that people who focus intensely on an enjoyable activity ③process fewer separate moments, so time seems to pass quickly. In contrast, bored or anxious people pay closer attention to each moment, ④making time feel as though it is dragging. When people become deeply engaged in a task, they often lose track of time, ⑤unaware of how many minutes have passed.

Sleep hygiene refers to a set of simple daily habits that ① helps the body prepare for consistent, restorative rest. Experts commonly recommend going to bed and waking up at the same time every day, even on weekends, because an irregular schedule confuses the body's internal clock and makes it ② harder to fall asleep on demand. They also advise reserving the bedroom for sleep alone, since using the bed to study, scroll through a phone, or watch videos teaches the brain ③ to associate that space with wakeful activity rather than rest. Physical environment matters as well: a cool, dark, and quiet room tends ④ to produce deeper sleep than one that is warm, bright, or noisy. None of these individual habits guarantees a good night's sleep on its own, but together they form a routine that gradually trains the body to expect and enter sleep more easily, much the way a consistent set of cues trains an athlete's body ⑤ to perform at a certain time each day.

Researchers who study teenagers have found a ① 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 ② lower on tests of memory and attention than those who 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 encountered during the day, converting fragile short-term memories into more ③ 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 feels ④ unfamiliar the next morning. For this reason, some schools have begun ⑤ confirming early start times, reasoning that an extra hour of sleep might do more for test scores than an extra hour of studying ever could.

Remote work has moved from a rare privilege to a common practice for millions of employees worldwide. Supporters argue that remote work ①decreases productivity, since employees avoid long commutes and distracting office environments. It also allows companies to hire talented people regardless of where they live, ②widening the pool of candidates. Critics, however, worry that remote work ③weakens teamwork and makes it harder for new employees to learn from experienced colleagues. Without regular face-to-face interaction, some workers feel ④isolated and struggle to build strong professional relationships. For these reasons, many experts suggest that the future of work will likely be hybrid, ⑤combining flexibility with occasional in-person collaboration.

Athletes preparing for major endurance events sometimes train for weeks at high altitude, where the air contains ① less oxygen than at sea level, in hopes of gaining a physiological edge once they return to compete at lower elevations. In this thin air, the body responds by producing ② fewer red blood cells, which carry oxygen more efficiently through the bloodstream to working muscles. When these athletes return to sea level, where oxygen is more abundant, their blood retains this elevated capacity for a limited period, potentially translating into ③ improved endurance performance. However, the benefits of altitude training are far from guaranteed, since individual athletes respond quite ④ differently to the same conditions, and some experience excessive fatigue that undermines the very training they hoped to complete. Many elite programs therefore follow a strategy known as live high, train low, in which athletes sleep at altitude to ⑤ stimulate blood adaptations but perform intense workouts at lower elevation to maintain quality and intensity.

Caffeine is the most widely consumed stimulant in the world, prized for its ability to ① sharpen focus and fight off fatigue within minutes of consumption. It works by blocking adenosine, a chemical that gradually builds up in the brain throughout the day and makes us feel ② decreasingly sleepy the longer we stay awake. By occupying the receptors that adenosine would normally bind to, caffeine tricks the brain into feeling alert even when the body has accumulated significant sleep pressure. The effects, however, last far longer than most people realize. Because caffeine can remain active in the bloodstream for five to six hours, a cup of coffee consumed in the late afternoon may still be ③ interfering with the ability to fall asleep at midnight. Even when people do not consciously notice difficulty falling asleep, caffeine has been shown to ④ reduce the amount of deep, restorative sleep obtained later in the night. For this reason, many sleep specialists advise ⑤ avoiding caffeine after early afternoon.

Skipping a proper warm-up before intense exercise might seem like a harmless way to save a few minutes, but the practice carries real physiological costs, since a cold muscle is stiffer and less elastic than a warm one. Gradually raising body temperature through light activity increases blood flow to the muscles and speeds up nerve signals between the brain and the muscle fibers. A proper warm-up also raises heart rate gradually, easing the cardiovascular system into strenuous work. As a result, _______________. For this reason, coaches treat warm-up routines not as optional preparation but as an essential part of training itself.

Across many countries, high schools begin classes early in the morning, often before eight o'clock. (A) Researchers who study this mismatch argue that the underlying problem is not laziness or poor discipline among students, but a scheduling system built around adult rhythms rather than adolescent ones. (B) This schedule assumes that teenagers can simply go to bed earlier to compensate, but biology tells a different story, because the body's internal clock shifts later during adolescence, delaying the release of melatonin until well after ten at night. (C) As a result, most teenagers are not physiologically ready to fall asleep until much later than adults, and when early start times force them to wake before completing a full sleep cycle, the mismatch accumulates into a chronic sleep debt.

The answer, it turns out, has less to do with raw talent than with the invisible bonds that connect teammates to one another. Team sports place athletes in a uniquely social form of competition, one where individual skill alone rarely determines the outcome of a match. ( ① ) Sports psychologists have long studied why some groups of talented individual players fail to perform as a cohesive unit while other, less individually skilled teams consistently exceed expectations. ( ② ) Trust among teammates appears to be a decisive factor, since players who believe their teammates will reliably fulfill their roles are more willing to take the calculated risks that winning often requires, such as passing to an open player instead of attempting a low-percentage shot alone. ( ③ ) Clear and consistent communication during high-pressure moments further reduces the hesitation and confusion that can unravel a team's coordination in front of a crowd. ( ④ ) Interestingly, researchers have found that teams which deliberately build informal social bonds off the field, not merely through structured practice, tend to display better on-field cohesion. ( ⑤ )

주어진 문장: Curious about why she always ran out of money so quickly, she asked her cousin for advice. When Mina was a freshman, she often spent her allowance within a few days. ( ① ) Her older cousin told her about the marshmallow experiment, a famous study in which children could eat one marshmallow immediately or wait for two. ( ② ) Researchers found that children who waited longer showed better academic performance and self-control years later. ( ③ ) This ability to resist an immediate reward in favor of a larger future one is known as delayed gratification. ( ④ ) Inspired by the study, Mina began saving half of her allowance each week instead of spending it all on snacks. At first, resisting small purchases felt surprisingly difficult, especially when her friends were eating out. After three months, however, she had saved enough to buy a bicycle she had wanted for over a year. ( ⑤ )