영어 모의고사 (자동 편성)

The metaverse, a network of interconnected virtual worlds, has begun ①generate job opportunities that did not exist just a few years ago. Companies now hire virtual world designers who build digital environments ②where users can socialize, shop, or attend events. Avatar designers create digital identities ③that represent users within these spaces, blending artistic skill with technical programming knowledge. Some analysts remain skeptical, ④pointing out that the metaverse has not yet attracted the massive user base that early predictions promised. Nevertheless, major companies continue ⑤investing heavily in this technology.

Jiho had always assumed he would join a large corporation after graduation, just as his parents expected. During his final year of university, however, he joined a small student team building an app that connected local farmers directly with restaurants. What started as a class project gradually turned into something more ①serious, as several restaurants began placing regular orders through their prototype. Jiho and his teammates decided to ②abandon their idea and instead spend a year developing it further, despite warnings from relatives who considered the plan too risky. They worked from a cramped apartment, surviving on ③limited savings while learning skills ranging from coding to negotiating with suppliers. After nearly failing twice, the team secured a small investment that allowed them to hire their first ④employee. Looking back, Jiho believes that the uncertainty of startup life taught him far more about problem-solving than any traditional job could have ⑤offered.

Feed an AI music program a mood, a tempo, and a rough genre, and within seconds it can generate a complete instrumental track, ready to be dropped under a video or used as background music for a small business. The software has studied thousands of existing songs, learning which chord progressions and rhythms tend to sound ①pleasant together, and it ②recombines these patterns into something new rather than copying any single source directly. For independent creators who cannot afford a composer or expensive licensing fees, this has been a genuine ③breakthrough. Professional musicians, however, remain divided. Some welcome the tool as a quick way to sketch ideas before refining them by hand, while others ④celebrate that a flood of AI-generated background music could quietly push human composers out of smaller, lower-budget projects. ⑤the very jobs many musicians once relied on to build a career.

Across the world, teenagers are chronically short on sleep, often getting two or three hours less than the eight to ten hours experts recommend for their age. Part of the problem lies in biology: as puberty begins, _______________. Yet school start times rarely adjust to this shift, forcing students to wake before their bodies are ready. The consequences extend well beyond simple tiredness. Chronic sleep loss during adolescence has been linked to impaired concentration, weakened memory, and a higher risk of anxiety and depression. It can also disrupt the hormones that regulate appetite, contributing to unhealthy weight gain over time. Some school districts have experimented with delaying start times by even thirty minutes, and early results suggest that students who gain that extra rest show improved grades, better mood, and fewer tardy arrivals. Despite this evidence, changing entrenched school schedules remains a slow and contentious process.

The planning fallacy describes the tendency to underestimate how long a task will take, even when experience suggests otherwise. Psychologists who studied this bias found that ___________. They focus less on how similar projects actually unfolded before. A student who insists an essay takes two hours, despite needing five hours for every previous essay, shows a clear instance of the fallacy. Large construction projects offer another example. Officials frequently predict completion dates that later prove far too optimistic once delays appear. One reason this bias persists is that people rarely review their history of missed deadlines, relying instead on hopeful imagination. Some researchers recommend a technique called reference class forecasting, comparing a new task to similar completed tasks. By anchoring predictions to real outcomes, planners can produce estimates that are considerably more accurate.

A short nap taken in the early afternoon, often called a power nap, can noticeably sharpen attention and mood without leaving a person groggy afterward. The key lies in timing: naps limited to roughly twenty minutes allow the brain to pass through the lightest stages of sleep while avoiding the deeper stages associated with slow-wave activity. If a nap extends much beyond that window, _______________. Laboratory studies comparing napping and non-napping groups have 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 strongest when the nap occurs several hours after waking, since this is when the body's natural dip in alertness makes rest most effective. For this reason, many workplaces now designate quiet rooms where employees can recharge briefly during the day.

When the body fights off an infection, the immune system relies heavily on adequate sleep to function effectively. (A) Rather than being a passive state in which the body simply rests, sleep functions as an active period during which the immune system repairs itself and prepares for future threats, which is why doctors often recommend extra sleep when someone is fighting an illness. (B) Chronic sleep deprivation also appears to promote low-grade inflammation throughout the body, a state that has been linked to a higher risk of heart disease and other chronic conditions. (C) During deep sleep, the body produces and releases cytokines, proteins that help regulate immune responses, and people who consistently sleep fewer than six hours a night show measurably weaker antibody responses after vaccination.

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.

People rarely realize how many different roles they play throughout an ordinary day. (A) A single online post, however, reaches all of these audiences simultaneously, blending roles that were once kept apart. (B) They might act formally with a manager, casually with old friends, and gently with a younger sibling, switching tones without much thought. (C) This blending, known as context collapse, can leave posters uncertain about which version of themselves to display.

The key distinction lies entirely in intensity: active recovery is not a second workout in disguise but a deliberately gentle session designed to support, rather than compete with, the body's underlying repair mechanisms. After an especially demanding training session, the instinct to collapse onto a couch and remain motionless is understandable, yet exercise physiologists increasingly recommend the opposite approach. ( ① ) Active recovery involves performing low-intensity movement, such as a light jog, an easy swim, or a gentle bike ride, on days following intense exertion rather than resting completely. ( ② ) This gentle activity keeps blood circulating through tired muscles, which appears to help clear metabolic byproducts that accumulate during hard exercise more efficiently than complete stillness does. ( ③ ) Some athletes worry that any movement at all will interfere with the repair process. ( ④ ) Research suggests, however, that truly light activity, kept well below the intensity of the original workout, does not meaningfully slow healing and may even reduce the perceived soreness that follows a hard session. ( ⑤ )