영어 모의고사 (자동 편성)

Exercise does far more than strengthen muscles and the heart; it also produces measurable changes within the brain itself. During sustained physical activity, the body ① releases a protein called brain-derived neurotrophic factor, which supports the growth of new neurons and ② strengthens connections between existing ones, particularly in regions associated with memory and learning. Studies comparing physically active students to sedentary peers have repeatedly found that the active group ③ performing better on tests of attention and problem-solving, even when the exercise session ends well before the test begins. Researchers believe that exercise increases blood flow to the brain, ④ delivering oxygen and nutrients more efficiently, while also reducing levels of stress hormones that can interfere with clear thinking. These findings have encouraged some schools ⑤ to schedule exercise before demanding academic classes.

Opening most camera apps today reveals a row of filters that can smooth skin, brighten eyes, and reshape a jawline before a photo is even taken, all powered by AI models ① trained to recognize facial features in real time. What began as a playful novelty has become a default setting for many users, subtly ② adjusting nearly every selfie posted online. Psychologists have grown concerned about a specific consequence of this shift: people increasingly compare their unfiltered reflection in a mirror to a filtered version of themselves ③ seeing constantly on a screen, a comparison that earlier generations never had to face. Some social media platforms have responded by ④ labeling heavily edited photos or banning certain filters that alter body shape. Whether such small warnings can meaningfully counter the daily flood of filtered images, however, ⑤ remains an open question that researchers are only beginning to study.

Turning on automatic captions used to mean settling for garbled text full of obvious errors, but recent speech-recognition models have made same-language captions ① accurate enough that many viewers now leave them on by default, even when watching content in their native language. The technology listens to audio, breaks it into individual sounds, and matches those sounds against a massive library of words and phrases ② to predict what was actually said. For viewers who are deaf or hard of hearing, this improvement has quietly ③ transformed everyday access to video content that once required a human transcriber. The system still stumbles over overlapping speakers, strong accents, and specialized vocabulary, ④ occasionally producing captions that are unintentionally funny. Even with these flaws, most users agree that imperfect captions ⑤ is far more useful than no captions at all.

Mira had lived in a coastal village since birth, watching the tide creep closer to her family's doorstep every year. When the sea finally ①swallowed the rice paddies that had fed her village for generations, her parents decided that staying was no longer possible. Together with many neighbors, they packed what little they could carry and moved inland, becoming what experts now call climate migrants, people forced to ②abandon their homes because of rising seas, droughts, or other disasters. This term, rarely used a decade ago, has become increasingly ③common as extreme weather displaces communities worldwide. Mira missed her old house terribly, yet she slowly began to build a new life in the crowded city, learning to adapt just as her ancestors once had. International organizations, however, still ④manage to agree on how to protect people like her, since climate migrants are not officially ⑤recognized as refugees under current law.

Many teenagers check their social media accounts dozens of times a day, worried that they might miss something ①important happening among their friends. This anxiety, known as FOMO, or the fear of missing out, arises when people believe that others are enjoying experiences from which they themselves are excluded. For example, a student scrolling through photos of a party she was not invited to may suddenly feel a wave of ②loneliness and regret, even though the event has already ended. Constantly refreshing feeds to avoid missing such updates, however, makes it difficult to concentrate on schoolwork or conversations happening in the present moment. Moreover, this endless comparison with curated highlights of other people's lives tends to ③deepen feelings of anxiety rather than ④worsen them. Therefore, students should learn to ⑤limit their social media use and focus more attention on the relationships and activities directly in front of them.

To compensate 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 appealing: 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 _______________. 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 additional. Therefore, relying heavily on offsets allows businesses to maintain harmful practices while appearing responsible. Experts insist that offsetting should complement, not replace, direct reductions in fossil fuel use if the strategy is to remain credible.

Not all relationships that people form are equally close or meaningful. (A) Robin Dunbar, an anthropologist, argued that the human brain can only support about one hundred fifty stable relationships at once. (B) Consequently, most of the hundreds of online followers a person accumulates never become genuinely close acquaintances. (C) This cognitive limit applies regardless of how many friends or followers a person collects on social media.

주어진 문장: Over time, these short breaks stopped feeling like sacrifices and started feeling like small rewards. For most of last year, Junho refreshed his social media feed constantly, terrified of missing a party, a trending meme, or gossip among his friends. ( ① ) This restless anxiety, often called FOMO, or the fear of missing out, left him exhausted and strangely unsatisfied even after hours of scrolling. ( ② ) One weekend, his phone battery died during a hiking trip, and, to his surprise, he actually enjoyed the quiet afternoon without notifications interrupting his thoughts. ( ③ ) Curious about this unexpected calm, Junho began deleting social apps for a few hours each day, gradually extending the breaks as weeks passed. ( ④ ) Instead of dreading what he might be missing, he started noticing small pleasures, such as finishing a book or having an uninterrupted conversation with his family. ( ⑤ ) This shift in attitude reflects what psychologists now call JOMO, the joy of missing out, a mindset that treats disconnection as freedom rather than loss.

주어진 문장: Even small purchasing decisions, they argue, can accumulate into meaningful pressure on how companies operate. 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. ( ① ) 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. ( ② ) Some critics dismiss this approach as impractical, arguing that most people cannot afford to prioritize ethics over affordability in daily life. ( ③ ) 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. ( ④ ) This shift also encourages companies to improve their practices, since consumer demand increasingly rewards transparency and responsibility. ( ⑤ ) For example, a clothing brand that openly shares its supply chain information may attract loyal customers willing to pay slightly more.

주어진 문장: Curious about why she always ran out of money so quickly, she asked her cousin for advice. When Mina was a freshman, she often spent her allowance within a few days. ( ① ) Her older cousin told her about the marshmallow experiment, a famous study in which children could eat one marshmallow immediately or wait for two. ( ② ) Researchers found that children who waited longer showed better academic performance and self-control years later. ( ③ ) This ability to resist an immediate reward in favor of a larger future one is known as delayed gratification. ( ④ ) Inspired by the study, Mina began saving half of her allowance each week instead of spending it all on snacks. At first, resisting small purchases felt surprisingly difficult, especially when her friends were eating out. After three months, however, she had saved enough to buy a bicycle she had wanted for over a year. ( ⑤ )