영어 모의고사 (자동 편성)

Athletes preparing for major endurance events sometimes ① trains for weeks at high altitude, where the air contains 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 more red blood cells, ② 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 ③ retains this elevated capacity for a limited period, potentially translating into improved endurance performance. However, the benefits of altitude training are far from guaranteed, since individual athletes respond quite differently to the same conditions, and some experience excessive fatigue that ④ 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 stimulate blood adaptations but perform intense workouts at lower elevation ⑤ to maintain quality and intensity.

The gig economy, in which people take on short-term or freelance jobs, ①has grown rapidly over the past decade. Digital platforms now connect customers directly with drivers, designers, and writers, ②allowing workers to choose when and how much they work. Businesses, meanwhile, can hire help only when they ③actually need it. For many young people entering the job market, gig work provides valuable flexibility ④that traditional employment rarely allows. However, gig workers often lack benefits such as health insurance, which full-time employees typical ⑤receive.

Elite athletes often perform in front of enormous crowds with championships, contracts, and years of training riding on a single moment, and the psychological weight of that pressure can ① undermine skills that feel automatic in practice. Sports psychologists explain that intense anxiety ② narrows attention and disrupts the smooth, unconscious execution of well-learned movements, a phenomenon sometimes called choking under pressure. Rather than trying to eliminate nervousness entirely, which research suggests is nearly impossible, many trainers now teach athletes to ③ reinterpret the physical symptoms of anxiety, such as a racing heart, as signs of readiness rather than danger. Structured breathing exercises and pre-performance routines also help athletes ④ lose a sense of control before a decisive moment. Over time, repeated exposure to high-pressure situations in practice allows athletes to build tolerance, so that pressure gradually feels ⑤ familiar rather than overwhelming.

Last January, Minji wrote the same resolution she always wrote: study English for an hour every day. By February, she had already quit, just as in previous years. ①Frustrated, she asked her teacher why her willpower always failed, and learned about a concept called implementation intentions. This idea, developed by psychologists, means forming a ②specific if-then plan that links a certain situation to a certain action in advance. She also prepared a ③backup plan: if she felt too tired, then she would study for just ten minutes instead of skipping entirely. Because these plans ④removed the need to decide anything in the moment, starting became far easier for Minji. By December, she had studied for eleven straight months, proving that clear if-then plans ⑤complicated vague intentions.

Scientists have identified certain gene variants that appear ① less frequently among elite endurance athletes than among the general population, along with a separate set that seems to favor explosive, power-based sports such as sprinting. One frequently studied variant, for instance, influences the proportion of slow-twitch versus fast-twitch muscle fibers a person naturally develops, a ratio that ② shapes whether a body leans toward endurance or explosive power. However, researchers caution strongly against interpreting these findings as evidence that athletic greatness is simply ③ inherited. Even athletes who carry every favorable variant identified so far still require years of ④ disciplined training to translate that genetic potential into actual performance. Genetics may set a rough ceiling on an individual's ultimate potential, but where any particular athlete lands within that range depends overwhelmingly on training quality, nutrition, coaching, and sheer ⑤ determination.

As artificial intelligence grows more capable of performing tasks once considered exclusively human, many people wonder which skills will remain valuable in the future. AI can now analyze data, generate text, and even diagnose certain medical conditions with ①impressive accuracy. However, most researchers argue that AI still ②struggles with tasks requiring genuine empathy, ethical judgment, and creative problem-solving in unfamiliar situations. A machine can recommend a treatment plan based on statistics, for instance, but it can ③easily comfort a frightened patient the way a compassionate nurse can. Similarly, AI can generate countless design variations, yet it ④lacks the lived experience that allows humans to judge which idea truly resonates with people. For this reason, educators increasingly emphasize skills such as collaboration and emotional intelligence, arguing that these human capabilities will become more ⑤valuable as automation spreads.

Value-based consumption refers to the practice of spending money on products or experiences that align with a person's personal beliefs, even if cheaper alternatives exist. Rather than simply seeking the lowest price, value-conscious consumers consider factors such as labor conditions, environmental impact, and community benefit before making a purchase. Some critics dismiss this approach as impractical, arguing that most people cannot afford to prioritize ethics over affordability in daily life. However, supporters point out that value-based spending does not require constant sacrifice; it often means buying fewer, higher-quality items rather than accumulating cheap goods that wear out quickly. This shift also encourages companies to improve their practices, since consumer demand increasingly rewards transparency and responsibility. Ultimately, value-based consumption suggests that ___________.

When Daniel was a child, he dreamed of becoming an astronaut, yet he assumed such careers belonged only to a handful of government scientists. During an internship, he helped design a small satellite intended to monitor crop health from orbit, a project that combined engineering with agricultural science. He realized that ___________. After graduation, Daniel joined a startup developing lunar landing equipment, a job that barely existed when he first imagined his future career.

Psychologists have long debated why some people find it easier than others to wait for future rewards. (A) For example, children who distracted themselves by singing or looking away were far more successful at waiting. (B) One explanation involves specific strategies, such as focusing attention away from the tempting object. (C) In the original marshmallow studies, researchers observed that success depended heavily on how children managed their attention.

For this reason, nutritionists generally advise spreading moderate portions of protein evenly across several meals throughout the day rather than saving it all for one large post-workout meal. After a strenuous workout, muscle fibers experience thousands of microscopic tears, and the body immediately begins a repair process that ultimately makes the muscle stronger than it was before. ( ① ) This repair depends heavily on amino acids, the building blocks that protein supplies, which is why sports scientists recommend consuming protein within a couple of hours after training. ( ② ) Waiting too long to eat can slow recovery, since a muscle's sensitivity to amino acids gradually declines once that window closes. ( ③ ) Many athletes assume that eating an enormous quantity of protein in a single sitting will speed up this process. ( ④ ) But the body can only use a limited amount at once; the rest is simply burned for energy or stored as fat. ( ⑤ )