영어 모의고사 (자동 편성)

Parents and coaches sometimes worry that heavy resistance training might damage the growth plates in a young athlete's bones, cartilage regions near the ends of long bones ① that are responsible for lengthening as a child develops. This concern kept strength training out of many youth programs for decades. However, extensive research over the past twenty years has found little evidence ② that properly supervised resistance training harms growth plates in healthy children. The actual risk arises not from lifting weights itself but from poor technique, excessive load, and inadequate supervision, factors ③ that can injure any part of a young athlete's body regardless of the activity involved. Major pediatric and sports medicine organizations now generally agree that structured strength programs, when ④ teaching with correct form and appropriate weight, can safely ⑤ improve bone density, coordination, and injury resistance in young athletes.

A growing number of health apps now track steps, sleep, and heart rate throughout the day, ① quietly building a detailed picture of a user's physical condition without requiring a single visit to a doctor's office. By comparing this stream of data against patterns drawn from millions of other users, the app's algorithm can flag early warning signs, such as an irregular heartbeat, long before the person ② experiencing it would have noticed anything unusual on their own. For people living far from specialists or unable to afford frequent checkups, this kind of constant monitoring can ③ feel like a genuine safety net. Doctors caution, however, that these apps ④ are designed to detect patterns, not to diagnose illness, and that a worried user should always confirm any alarming reading with a professional. Treating a wellness app as a substitute for medical expertise, they warn, can ⑤ being just as risky as ignoring a warning altogether.

Long before a user finishes typing a sentence, the keyboard on most smartphones has already begun ① guessing what word comes next. This feature relies on a language model ② trained to notice which words commonly follow one another, so it can offer a shortlist of likely candidates above the keyboard, saving users countless keystrokes over the course of a day. The system also adapts to each individual, gradually ③ learning a person's favorite phrases, slang, and even the names of friends that no generic dictionary would recognize. This constant personalization, however, creates a subtle side effect that few users ④ notices. Because the keyboard nudges people toward its own suggestions, some linguists worry that autocomplete may be quietly narrowing everyday vocabulary, encouraging writers ⑤ to accept a convenient suggestion rather than searching for the more precise word.

Psychologist Roy Baumeister proposed a concept ①called ego depletion theory, which suggests that willpower functions like a muscle that gradually tires after repeated use. According to this theory, every act of self-control, from resisting a snack to concentrating on difficult homework, ②draws from the same limited mental resource. As this resource becomes depleted throughout the day, later decisions ③require more effort and are more likely to fail. For instance, someone who exercises discipline avoiding distractions all morning may struggle ④to resist checking a phone by evening. Likewise, dieters report that self-control weakens sharply at night, after hours of resisting food. Some researchers argue that short breaks, adequate sleep, and blood sugar levels can help restore this depleted resource. Although later studies have questioned how strong this effect is, the theory still ⑤offer a useful framework for understanding why willpower seems to fade throughout a long day.

Instead of typing keywords into a search bar, a growing number of people now simply upload a photo and let an algorithm figure out what it contains. This process, known as reverse image search, compares the visual patterns in a picture against a massive database, identifying everything from a landmark in the background to the exact model of a pair of sneakers. Shoppers use it to find where an item seen on the street can be purchased, while students use it to ① identify plants, insects, or historical artworks in seconds. The system works by breaking an image down into countless small features, such as edges, colors, and shapes, then matching that pattern against millions of stored examples. It is ② flawless, however; a ③ blurry photo, an unusual camera angle, or an object partly hidden behind another can easily ④ confuse the algorithm, leading to search results that have ⑤ nothing to do with the original picture at all.

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 ① pleasant together, and it ② recombines 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 ③ breakthrough. Professional musicians, however, remain divided. Some welcome the tool as a quick way to sketch ideas before refining them by hand, while others ④ celebrate that a flood of AI-generated background music could quietly push human composers out of smaller, lower-budget projects. ⑤ the 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, the body's internal clock naturally ① shifts later, making it difficult for teenagers to fall asleep before eleven at night. 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 ② impaired concentration, weakened memory, and a higher risk of anxiety and depression. It can also disrupt the hormones that regulate appetite, contributing to ③ 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 ④ worsened grades, better mood, and fewer tardy arrivals. Despite this evidence, changing entrenched school schedules remains a slow and ⑤ contentious process.

Many people feel a ①sudden wave of anxiety when their smartphone battery is nearly dead or they have left it at home. This ②intense discomfort, known as nomophobia, is short for "no-mobile-phone phobia." Researchers explain that this fear develops because smartphones have become ③tightly linked to social belonging; missing a notification can feel like being cut off from friends. Therefore, experts suggest gradually reducing phone checks to ④strengthen this anxious dependence. Recognizing nomophobia as a real psychological pattern is the first step toward a ⑤healthier relationship with technology.

Minji had tried for years to build a bedtime reading habit but always forgot once under the blanket. During summer, she found a method called habit stacking. It means attaching a new habit to an existing one so it acts as a reminder. Her existing habit was brushing her teeth every night, so she decided to place her book beside her toothbrush. After brushing her teeth, she would pick up the book, letting one action trigger the next. Within two weeks, opening the book after brushing felt almost automatic, requiring no conscious effort. Encouraged by this success, Minji stacked another habit onto her morning routine, reviewing vocabulary words after making her bed. She realized ___________. By the end of summer, both habits felt like steady parts of her routine, requiring no reminders.

Elite athletes rarely walk up to a free throw line or a golf ball without first performing a highly specific sequence of movements, a habit sports psychologists call a pre-performance routine. Far from being mere superstition, this consistent sequence serves a genuine cognitive purpose: repeating the same physical and mental steps before every attempt narrows an athlete's focus away from distracting thoughts and toward the specific technical cues needed to execute the skill correctly. Researchers have found that athletes who follow a consistent routine tend to show more stable performance under pressure than those who approach each attempt differently, because _______________. For this reason, coaches now actively teach young athletes to develop and rehearse individualized routines rather than treating them as personal quirks.