영어 모의고사 (자동 편성)

Retailers frequently rely on sales events to boost short-term revenue, but the psychology behind these promotions is more complex than simple discounting. When a price is crossed out and replaced with a lower number, consumers instinctively ①perceive the new price as a bargain. This technique, ②known as anchoring, shapes how shoppers judge value by comparing prices rather than evaluating a product on its own merits. Limited-time sales further intensify this effect, since a ticking clock ③encourage rushed decisions that leave little room for careful comparison. Retailers also use phrases such as "while supplies last" to suggest scarcity, even when inventory ④remains plentiful. Over time, frequent sales can actually train customers ⑤to wait for discounts rather than buy at full price.

VO2 max, ①defined as the maximum volume of oxygen a person's body can consume and use during intense exercise, is widely regarded as one of the best single indicators of cardiorespiratory fitness. Elite endurance athletes typically post VO2 max values far higher than those of untrained individuals, ②reflecting hearts that pump larger volumes of blood and muscles that extract oxygen from that blood with remarkable efficiency. While genetics accounts for a substantial portion of an individual's potential VO2 max, consistent aerobic training can still ③raise the measurement considerably over months of dedicated effort. Interval training, which alternates short bursts of near-maximal effort with periods of recovery, has proven particularly effective at ④improve this measurement compared to steady, moderate-intensity exercise alone. It is worth noting, however, that a high VO2 max does not guarantee success in competition, since factors such as running economy, pacing strategy, and mental resilience also ⑤play a decisive role in determining who actually crosses the finish line first.

Sociologists use the term homophily ①to describe the tendency of people to form connections with others who share similar backgrounds, opinions, or interests. This principle explains why classmates from the same major often become close friends, while coworkers with shared hobbies naturally gravitate toward one another. Because similarity reduces the effort required to understand another person's perspective, relationships ②built on shared traits tend to feel comfortable and require less negotiation. However, this same comfort can narrow the range of viewpoints someone ③encounters, since surrounding oneself with similar people limits exposure to different ideas. Social media platforms intensify this pattern through recommendation algorithms that ④suggest new friends based on shared interests or similar browsing history. As a result, users often find their online circles becoming increasingly homogeneous, filled with people who think and behave much like themselves. Recognizing this tendency ⑤allow individuals to make deliberate efforts to broaden their social networks.

Aerobic exercise, such as jogging, swimming, or cycling at a steady pace, strengthens the heart by forcing it to pump ①larger 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 ②fewer times per minute. This adaptation explains why trained athletes often have a much ③lower 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, ④worsening the delivery of oxygen and nutrients at a cellular level. Researchers have also found that regular aerobic exercise ⑤reduces inflammation throughout the body and improves the way cells respond to insulin.

For decades, athletes were taught to stretch a muscle and hold the position before any competition, believing that this practice alone would ①prevent injury. Recent research, however, has complicated that assumption considerably. Static stretching, in which a muscle is held at its longest length for an extended period, can actually ②reduce the muscle's ability to generate explosive force immediately afterward, which is troubling for sprinters or jumpers who need maximum power right away. Dynamic stretching, which involves controlled, repeated movement through a joint's full range of motion, appears to ③prepare muscles for activity without this temporary weakening effect. As a result, many coaches now recommend ④saving static stretching for after a workout, when it may help restore muscle length and reduce soreness, while reserving dynamic movements for the warm-up period before intense effort begins. The right technique, in other words, depends heavily on ⑤chance.

Three-dimensional printing technology is changing how products are designed and manufactured across many industries. Unlike traditional manufacturing, which often requires expensive molds and long production times, 3D printers can create ①simple objects directly from digital files within hours. This flexibility allows companies to produce small batches of customized products without the massive costs typically associated with mass production. Hospitals now use 3D printing to create prosthetic limbs tailored ②precisely to individual patients, while automakers use it to build lightweight parts that ③reduce vehicle weight. Small businesses, too, have benefited enormously, since the technology ④lowers the barrier to entry for entrepreneurs. However, experts caution that 3D printing still struggles to ⑤match the speed of mass production for extremely large orders.

Across many countries, high schools begin classes early in the morning, often before eight o'clock. This schedule assumes that teenagers can simply go to bed earlier to compensate, but biology tells a different story. During adolescence, the body's internal clock shifts later, delaying the release of melatonin until well after ten at night. As a result, most teenagers are not physiologically ready to fall asleep until much later than younger children or adults. When early start times force them to wake before their bodies have completed a full sleep cycle, the mismatch accumulates into a chronic sleep debt that affects concentration and mood throughout the school day. Researchers who study this mismatch argue that _______________. Some school districts that delayed their start times by thirty minutes reported improvements in attendance, suggesting that the timing of the school day matters more than commonly assumed.

Many self-help books emphasize the cue-routine-reward loop as a tool for building better habits. (A) For example, athletes who want to build a stretching habit often rely on a specific cue, such as arriving at the gym, to trigger the same short routine every time. (B) Over time, this consistent pairing strengthens the neural pathway connecting the cue to the routine, making the behavior feel almost automatic. (C) According to this model, every habit consists of three connected parts: a cue that triggers behavior, a routine that follows, and a reward that reinforces it.

Only in recent years have researchers begun to seriously question whether this long-standing fear was ever justified in the first place. Parents and coaches sometimes worry that heavy resistance training might damage the growth plates in a young athlete's bones, cartilage regions near the ends of long bones that are responsible for lengthening as a child develops. ( ① ) This concern kept strength training out of many youth programs for decades. ( ② ) However, extensive research over the past twenty years has found little evidence that properly supervised resistance training harms growth plates in healthy children. ( ③ ) The actual risk arises not from lifting weights itself but from poor technique, excessive load, and inadequate supervision, factors that can injure any part of a young athlete's body regardless of the activity involved. ( ④ ) Major pediatric and sports medicine organizations now generally agree that structured strength programs, when taught with correct form and appropriate weight, can safely improve bone density, coordination, and injury resistance in young athletes. ( ⑤ )

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 )