영어 모의고사 (자동 편성)

Sleep debt refers to the cumulative gap between the amount of sleep a person needs and the amount they actually get. Unlike a financial debt, however, this deficit cannot simply ① be repaid with a single long weekend of rest. When someone loses two hours of sleep every night for a week, the body does not treat the shortage as fourteen separate small losses; instead, it accumulates the deficit, and the resulting impairment in attention and mood can resemble that of a person ② who has been awake for an entire night. Researchers have found that even modest, chronic sleep restriction gradually impairs reaction time and decision-making, often without the affected person ③ noticing the decline. This is because subjective feelings of tiredness tend to plateau after a few days, even as objective performance keeps ④ deteriorate. Consequently, people frequently underestimate how much sleep debt they are carrying until a demanding task suddenly ⑤ exposes the accumulated cost.

To ①compensate for their carbon emissions, many individuals and companies now purchase carbon offsets, financial credits that fund projects such as planting trees or building renewable energy plants. The idea is ②unappealing: paying for an equivalent amount of carbon to be absorbed elsewhere should cancel out the harm caused by activities like flying. However, critics argue that this system often functions as a convenient excuse for postponing ③genuine emission cuts rather than achieving them. For example, a newly planted forest may take decades to absorb the promised carbon, and it could later burn down or be cut, erasing any benefit. Moreover, some offset projects would have happened anyway, meaning the credits fund nothing truly ④additional. Experts insist that offsetting should complement, not replace, direct reductions in fossil fuel use if the strategy is to remain ⑤credible.

The metaverse, a network of interconnected virtual worlds, has begun to generate job opportunities that did not ①exist just a few years ago. Avatar designers create digital identities that represent users within these spaces, ②blending artistic skill with technical programming knowledge. Virtual event planners organize concerts, conferences, and product launches entirely within online platforms, reaching audiences that would be ③easy to gather in person. Some analysts remain skeptical, pointing out that the metaverse has not yet attracted the massive user base that early predictions promised. Nevertheless, major companies continue ④investing heavily in this technology, betting that virtual spaces will eventually become as ⑤significant as physical retail venues.

Smartphones, tablets, and computer screens all emit a significant amount of blue light, a short-wavelength light that our eyes are especially sensitive to. During the day, exposure to blue light from the sun helps keep us ① drowsy and mentally sharp, which is generally beneficial. At night, however, the same wavelength can interfere with the body's natural preparation for sleep. Specialized cells in the retina detect blue light and send signals to the brain's internal clock, ② suppressing the release of melatonin, the hormone that signals it is time to rest. Studies have found that people who scroll through their phones in bed before sleeping take longer to fall asleep and experience ③ lighter, more easily disrupted sleep than those who avoid screens. Some devices now offer a night mode that shifts the display toward ④ warmer tones, reducing blue light output in the evening. While this feature may help slightly, sleep researchers generally recommend limiting screen use altogether in the hour before bedtime for the best ⑤ results.

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.

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.

Social psychologists describe a phenomenon called the bystander effect, in which individuals become less likely to help a victim as the number of witnesses increases. Each observer assumes someone else will step in, and this diffusion of responsibility leaves no one willing to act. Cyberbullying magnifies this problem, since a single humiliating post can be witnessed by thousands of people scattered across the internet rather than a few standing nearby. Anonymity intensifies the effect further, allowing silent observers to scroll past cruel comments without feeling accountable for their inaction. Some bystanders even worry that intervening publicly might make them the bully's next target, so they choose to remain silent instead. However, silence signals approval to both the bully and the audience watching the exchange unfold. Experts insist that even a single supportive comment can disrupt this harmful pattern. Therefore, witnesses online must _______________.

Anyone who has ridden a bicycle after a decade away from one has likely experienced muscle memory firsthand: the body seems to recall a complex skill almost instantly, even when conscious memory of the exact movements has faded. Contrary to what the name suggests, muscles themselves do not actually store memories; the phenomenon originates in the brain and nervous system, where repeated practice gradually shifts control of a well-learned movement from regions associated with conscious thought to areas that operate largely automatically. This shift explains why a skilled athlete can execute a complicated sequence of movements without consciously thinking through each individual step, freeing mental attention for strategy and decision-making instead. Interestingly, research also suggests that _______________.

주어진 문장: Because the videos looked completely unscripted, audiences trusted them in a way that polished commercials rarely achieve. When a beverage company launched a new flavor last summer, the marketing team faced a tight budget and needed a creative solution. ( ① ) Instead of relying on expensive television commercials, they designed a simple dance challenge and invited a handful of everyday users to post videos using the product. ( ② ) Within days, thousands of people began recreating the dance and tagging the brand, turning an ordinary product launch into a viral trend. ( ③ ) Because participants created the content themselves, viewers found the videos far more entertaining than a traditional advertisement would have been. ( ④ ) The company barely spent any money on production, yet the challenge reached millions of viewers across multiple platforms. ( ⑤ ) Encouraged by this success, other brands quickly attempted similar challenges, though many failed to generate the same excitement.

주어진 문장: This pattern echoes what happened during previous waves of industrial automation. Self-driving technology is advancing rapidly, and its impact on the transportation industry is becoming increasingly visible. ( ① ) Companies are testing autonomous trucks that can travel long distances without human drivers, potentially transforming how goods move across countries. ( ② ) At the same time, millions of professional drivers worry about losing their jobs as automation spreads through the industry. ( ③ ) Experts predict that certain driving jobs, particularly long-distance trucking, may shrink significantly within the next two decades. However, new roles are also emerging, including remote vehicle operators and technicians who maintain the complex sensors these vehicles depend on. ( ④ ) Workers who adapt their skills toward supervising and maintaining these systems are likely to find new opportunities rather than face unemployment. ( ⑤ )