영어 모의고사 (자동 편성)

Coaches have traditionally focused athlete preparation on training volume and nutrition, but a growing body of research ① suggests that sleep deserves equal attention. During deep sleep, the body releases growth hormone, a substance essential for ② repairing muscle tissue damaged during intense training, while the brain consolidates motor skills practiced earlier that day into more stable, efficient patterns. Athletes who sleep fewer than seven hours a night have been shown ③ suffering more injuries, slower reaction times, and reduced accuracy compared to well-rested peers performing the identical drills. Frequent travel across time zones compounds this challenge considerably, since jet lag can ④ disrupt an athlete's natural sleep-wake cycle for several days after a long flight. In response, many professional teams now employ sleep specialists ⑤ who design travel schedules, control bedroom lighting and temperature, and even adjust competition start times when possible.

Automation is transforming labor markets more quickly than economists predicted only a decade ago. Factories once staffed by hundreds of workers now rely on robotic arms ①that assemble products with remarkable precision. Warehouses use automated systems ②to sort and deliver packages within a few hours. This shift does not simply eliminate jobs; it also creates roles that ③never exists before. Technicians who maintain robotic equipment are now in high demand, and engineers who design efficient systems ④are highly valued. Policymakers argue that retraining programs ⑤are essential to help displaced workers move into emerging fields.

Many people believe that building a new habit requires strong willpower or motivation. However, psychologist BJ Fogg argues that habits form more ①easily when a behavior itself becomes simple to perform. His theory, called the Fogg Behavior Model, states that a behavior happens only when motivation, ability, and a prompt occur together. When motivation is ②low, the model suggests, the task must be made extremely ③difficult, or it will not happen at all. For instance, a person who wants to exercise daily succeeds more often by committing to one push-up than to a long workout. Fogg calls this idea the law of ④least effort, since people naturally choose the option requiring the least energy. A student who wants to read more might leave a book open on the desk rather than setting a vague goal. By lowering the required effort, people reduce the ability barrier and make steady action far more ⑤achievable.

A short nap taken in the early afternoon, often called a power nap, can noticeably sharpen attention and mood without leaving a person ① refreshed afterward. The key lies in timing: naps limited to roughly twenty minutes allow the brain to pass through the ② lightest stages of sleep while avoiding the deeper stages associated with slow-wave activity. If a nap extends much beyond that window, the sleeper risks waking during deep sleep, which produces a ③ foggy, disoriented feeling known as sleep inertia that can persist for thirty minutes or more. Laboratory studies comparing napping and non-napping groups have ④ repeatedly shown that a brief nap improves reaction time and short-term memory almost as effectively as a full night of extra rest. Interestingly, the benefit appears ⑤ strongest when the nap occurs several hours after waking, since this is when the body's natural dip in alertness makes rest most effective.

Researchers who 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 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, _______________. 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 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 could.

Psychologists who study daily behavior describe habits through a model called the cue-routine-reward loop. This theory explains that every habit begins with a cue, a signal that tells the brain to start an automatic behavior. The brain then performs a routine, which is the action itself, whether physical or mental. Finally, the brain receives a reward, a positive feeling that makes it want to repeat the same behavior. For example, a notification sound can act as a cue that leads a student to check a phone, and the relief from boredom becomes the reward. Similarly, opening a refrigerator out of habit rather than hunger shows how a routine can run without conscious thought. Because this loop operates automatically, breaking a bad habit requires ___________. Understanding this structure helps people redesign daily patterns more effectively than relying on willpower alone.

For centuries, dreams have fascinated scientists and philosophers alike, yet no single theory fully explains why the sleeping brain generates such vivid and often bizarre experiences. One prominent idea suggests that dreaming helps the brain process emotional experiences, _______________. Another theory proposes that dreams serve a more practical function, allowing the brain to rehearse responses to threats without any real danger, a kind of nightly simulation that may have offered early humans a survival advantage. Still other researchers argue that dreaming is simply a byproduct of the brain organizing memories, with vivid imagery arising as the mind sorts through the day's information rather than serving any independent purpose of its own.

Pop-up stores have become a popular way for brands to create memorable experiences. (A) As a result, visitors often feel a stronger emotional connection to the brand than they would from an ordinary store visit. (B) Because these spaces exist only temporarily, customers feel a sense of urgency to visit before the opportunity disappears. (C) Many brands design these spaces to be visually striking, encouraging visitors to share photographs on social media.

주어진 문장: In contrast, downward comparison, which involves comparing oneself with someone worse off, can temporarily boost self-esteem instead. Psychologist Leon Festinger introduced social comparison theory, which explains that people evaluate their own abilities and opinions by comparing themselves with others. ( ① ) According to this theory, individuals engage in upward comparison when they measure themselves against someone who appears more successful, attractive, or accomplished. ( ② ) Social media platforms, filled with carefully edited photos and exaggerated achievements, provide endless opportunities for this kind of comparison. ( ③ ) For instance, a teenager browsing vacation pictures posted by classmates may begin to feel that her own ordinary life is somehow inadequate. ( ④ ) Unlike comparing oneself with someone in a similar position, which can sometimes boost confidence, upward comparison frequently triggers envy, dissatisfaction, and lower self-esteem. ( ⑤ ) Researchers have found that frequent upward comparison online is linked to higher depression and anxiety. Consequently, this theory helps explain why scrolling through social media often leaves users feeling worse rather than better about themselves.

These physiological adjustments, though subtle, translate into a noticeable difference once competition actually begins. 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. ( ① ) A cold muscle is stiffer and less elastic than a warm one, making it considerably more prone to strains and tears when suddenly asked to contract forcefully. ( ② ) Gradually raising body temperature through light activity increases blood flow to the muscles, allowing oxygen to reach tissue more efficiently and enabling nerve signals to travel faster between the brain and the muscle fibers. A proper warm-up also raises heart rate gradually, easing the cardiovascular system into strenuous work rather than shocking it with a sudden demand. ( ③ ) Athletes who warm up thoroughly tend to report better performance in the early minutes of competition, since their bodies are already primed rather than adjusting on the fly. ( ④ ) For this reason, coaches treat warm-up routines not as optional preparation but as an essential part of training itself. ( ⑤ )