영어 모의고사 (자동 편성)

A smartwatch strapped to a runner's wrist can now do far more than simply count steps; it monitors heart rate variability, running form, and recovery time, then uses that data ①to suggest a training plan tailored to the individual rather than a generic weekly schedule. When the device detects signs of overtraining, such as an unusually high resting heart rate several mornings in a row, it may recommend a lighter workout or an extra rest day before fatigue ②turns into an actual injury. Amateur athletes often credit this kind of guidance with ③help them train more consistently without pushing their bodies too hard. Sports scientists note an important caveat, however: a wrist-based sensor cannot fully capture the same physiological detail ④available in a professional lab, so its suggestions should be treated as a helpful guideline rather than an infallible medical judgment, particularly for anyone ⑤managing a chronic health condition.

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

Walking down a crowded street while staring at a phone screen has become such a common sight that it barely draws attention anymore, even though the habit turns a pedestrian into one of the ①most alert people on the sidewalk. Researchers who study attention describe this as a kind of tunnel vision: a person absorbed in a text message or a video processes only a ②narrow slice of the surrounding environment, filtering out approaching cars, uneven pavement, and other pedestrians almost entirely. What makes this danger especially difficult to address is that pedestrians ③rarely recognize the risk in the moment; unlike distracted driving, which is widely ④condemned, glancing at a phone while crossing the street still feels like a ⑤harmless habit to most people who do it every day.

Political philosophers have long debated how much authority, if any, a government may legitimately claim over free individuals. Robert Nozick imagined a hypothetical starting point in which people live without any state at all, each relying on private arrangements to protect their own person and property. He argued that a minimal state, limited strictly to enforcing contracts and protecting citizens from violence, theft, and fraud, could arise gradually through a series of voluntary exchanges, without anyone's rights ever being violated along the way. Critics on one side, the anarchists, insist that even this minimal government inevitably violates the rights of those who never consented to join it. Critics on the other side argue that a state limited to bare protection cannot address deeper inequalities that arise naturally in any free market. Nozick's thought experiment therefore _______________.

Audiobooks have grown rapidly in popularity over the past several years. Some traditional readers argue that listening to a book is not the same as truly reading it, because the listener does not process written words directly. However, researchers who study this question have found that comprehension scores for listeners and readers are usually very similar, as long as the material is not too complex. The biggest difference tends to appear with dense, technical material. For most everyday reading, however, _______________.

Walking through the old industrial district downtown, I noticed that a gray concrete wall had been transformed overnight into a wild swirl of color, letters, and cartoon figures. (A) Some residents complained to the city office, calling it vandalism and demanding that workers paint over it immediately. (B) Others argued that the same wall had been an ugly, forgotten eyesore for years, and that the graffiti artist had simply given it a voice no one else bothered to give it. (C) This disagreement reveals a tension at the heart of street art: without permission, even a skillful piece can be labeled a crime, yet many cities now invite artists to paint designated walls legally.

At the time, I had no particular career goal in mind. Two years ago, I began volunteering at an animal shelter near my neighborhood on weekends. ( ① ) My tasks included feeding animals, cleaning cages, and helping visitors choose a pet to adopt. ( ② ) Over time, I noticed how much I enjoyed calming nervous or injured animals. ( ③ ) One rainy afternoon, a frightened puppy refused to eat, and I sat quietly beside it for over an hour until it finally relaxed. ( ④ ) I began researching careers in veterinary medicine and animal behavior, subjects I had never seriously considered before. ( ⑤ ) My volunteer work, which started as a simple hobby, slowly turned into the clearest career direction I had ever found.

This constant, individualized adjustment is what makes the technology feel so different from a standard workbook. Adaptive learning apps promise something no traditional classroom can easily offer: a lesson plan that adjusts itself to each individual student in real time. ( ① ) As a student answers practice questions, the app tracks which concepts are mastered and which remain shaky, then quietly reshuffles the next set of problems to target the weaker areas. ( ② ) Early studies suggest that this personalized pacing can help struggling students catch up faster than a one-size-fits-all worksheet ever could. ( ③ ) However, critics caution that an app cannot replace the encouragement, humor, and flexibility a human teacher brings to a lesson, especially when a student is frustrated rather than simply behind. ( ④ ) There is also a subtler concern: students who grow used to instant, algorithm-generated feedback may struggle later with the slower, more ambiguous kind of feedback that real-world tasks and mentors typically provide. ( ⑤ )

He termed the resulting gap cultural lag, describing the friction that appears when institutions have not yet caught up with new technological realities. Sociologist William Ogburn observed that when a society undergoes technological change, its material culture, meaning tools and inventions, tends to advance faster than its nonmaterial culture, meaning norms, laws, and values. ( ① ) The rise of the automobile, for instance, transformed daily mobility long before traffic laws, insurance systems, and urban planning fully adapted to the risks it introduced. ( ② ) A contemporary example can be found in genetic testing, which now allows individuals to learn detailed information about inherited disease risk well before most legal systems have settled questions about its use. ( ③ ) Cultural lag theory reminds us that technological progress is not automatically matched by social progress. ( ④ ) The resulting gap can produce confusion or exploitation until laws and customs eventually adjust to new material conditions. ( ⑤ )

In other words, what looks like a lack of discipline may actually be a biological mismatch. Across many countries, high schools begin classes early in the morning, often before eight o'clock. ( ① ) This schedule assumes that teenagers can simply go to bed earlier to compensate, but biology tells a different story. ( ② ) During adolescence, the body's internal clock shifts later, delaying the release of melatonin until well after ten at night. ( ③ ) As a result, most teenagers are not physiologically ready to fall asleep until much later than younger children or adults are, and 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. ( ④ ) Researchers who study this mismatch argue that the underlying problem is not laziness or poor discipline among students, but a scheduling system built around adult rhythms rather than adolescent ones. ( ⑤ ) Some school districts that delayed their start times by thirty minutes reported improvements in attendance.