영어 모의고사 (자동 편성)

Researchers who ①study teenagers have found a strong link between how well students sleep and how well they perform in school. Students who sleep fewer than seven hours a night tend to score lower on tests of memory and attention than those who ②sleep eight or nine hours, even when the two groups study for the same number of hours. One explanation is that sleep plays an active role in learning: during certain stages of sleep, the brain replays and strengthens information ③encountered during the day, converting fragile short-term memories into more durable long-term ones. When sleep is cut short, this consolidation process is interrupted before it can finish, so material that seemed well understood the night before often ④feel unfamiliar the next morning. For this reason, some schools have begun rethinking early start times, reasoning that an extra hour of sleep might do more for test scores than an extra hour of studying ever ⑤could.

Travelers who cross several time zones in a single flight often arrive ①feeling exhausted, foggy, and strangely out of sync with the local clock. The discomfort arises because the body's internal clock, ②which governs sleep, hunger, and alertness, continues to run on the schedule of the departure city even after landing. Realigning this internal clock to a new time zone is not instantaneous; researchers estimate that the body typically needs about one day ③to adjust for every time zone crossed. Flying eastward tends to produce more severe symptoms than flying westward, because advancing the internal clock forward ④are generally harder for the body than delaying it. Exposure to natural light at the right moments after arrival can help speed up the adjustment, since light is the strongest external cue the internal clock ⑤uses to reset itself.

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.

Having grown up with smartphones and social media, they research products ①extensively online before making even small purchases. Unlike older generations, who often valued brand loyalty above all else, many members of Generation Z ②prioritize a company's values, switching brands easily if one no longer matches their beliefs. They also tend to ③favor secondhand and resale platforms, viewing sustainability as an important factor. Peer recommendations shared through short videos frequently carry ④less weight than traditional celebrity endorsements, since viewers see these creators as relatable rather than distant figures. Businesses that fail to adapt to these preferences risk losing an entire generation of potential customers, so many companies now invest in ⑤authentic engagement.

Skipping a proper warm-up before intense exercise might seem like a harmless way to save a few minutes, but the practice carries real physiological costs, since a cold muscle is stiffer and less elastic than a warm one. Gradually raising body temperature through light activity increases blood flow to the muscles and speeds up nerve signals between the brain and the muscle fibers. A proper warm-up also raises heart rate gradually, easing the cardiovascular system into strenuous work. As a result, _______________. For this reason, coaches treat warm-up routines not as optional preparation but as an essential part of training itself.

The twenty-hour rule proposes that years of practice are not needed to become skilled at a new activity. Only about twenty hours of effort are needed to reach a useful level. Unlike theories claiming true mastery requires ten thousand hours, this rule targets a more modest goal. That goal is simple competence for everyday use. According to supporters, ___________, since a beginner has room to grow. Someone learning guitar can typically strum simple chords and follow a basic song within twenty hours of daily practice. Likewise, a language learner may soon order food or ask directions without years of formal study. Advocates emphasize that the twenty hours must be deliberate and focused, broken into short daily sessions rather than one long stretch. The hours should be aimed at fixing weaknesses rather than repeating what one already knows.

Minji looked forward to Jimin's livestreams every single evening without fail. (A) Eventually, at a crowded fan event, Jimin treated her exactly like any other stranger waiting in line. (B) Over time, she began to feel that the two of them shared a genuine, personal friendship. (C) That moment made Minji realize that the closeness she had felt existed only on her side.

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. (A) In response, some school districts have experimented with delaying start times, and early results suggest that students who gain extra rest show improved grades and better mood. (B) As a result, chronic sleep loss during adolescence has been linked to impaired concentration, weakened memory, and a higher risk of anxiety and depression. (C) Part of the problem lies in biology, since the body's internal clock naturally shifts later during puberty, while school start times rarely adjust to match.

주어진 문장: Without such structure, even highly motivated students may unconsciously postpone tasks that feel too far removed from the present moment. Behavioral economists use the term temporal discounting to describe how people undervalue future rewards simply because those rewards are not immediate. ( ① ) This tendency explains why a student might choose to watch videos tonight rather than study for an exam that remains several weeks away, even though studying offers a greater long-term benefit. ( ② ) A distant reward, no matter how valuable, feels psychologically smaller than a small reward available right now. This bias contributes to procrastination, since future consequences rarely feel urgent enough to motivate immediate action. ( ③ ) To counter this tendency, students should convert distant goals into smaller, near-term milestones that feel more emotionally real. ( ④ ) Setting weekly checkpoints rather than a final deadline can make future benefits feel closer and more concrete. Teachers and parents should provide immediate, meaningful feedback, since prompt recognition helps bridge the gap between present effort and delayed reward, ultimately reducing the urge to postpone tasks. ( ⑤ )

주어진 문장: Not everyone, however, feels this financial burden equally, since household circumstances vary widely. The term green premium describes the extra cost that consumers must pay when they choose an environmentally friendly product or energy source over a conventional, cheaper alternative. ( ① ) For example, an electric vehicle or solar-powered appliance often carries a higher price tag than its gasoline-powered or coal-based counterpart, even though it produces fewer emissions over time. ( ② ) This price gap frequently discourages shoppers who support sustainability in principle but cannot justify the additional expense within a limited household budget. ( ③ ) In contrast, wealthier consumers can absorb the premium more easily, which creates unequal participation in green markets. ( ④ ) To narrow this gap, governments have introduced subsidies and tax credits that lower upfront costs, while companies invest in research to make clean technologies cheaper to manufacture. ( ⑤ ) As production scales up and innovation continues, many economists expect the green premium to shrink steadily, eventually making sustainable choices the more affordable option for most consumers.