영어 모의고사 (자동 편성)

Soojin started posting short cooking videos on her phone during her last year of high school, never imagining it could become a career. At first, only a handful of friends watched her clips, and she nearly quit after several months without noticeable growth. She kept ①experimenting, however, adjusting her editing style and posting more consistently despite the discouraging numbers. Everything changed when one video ②demonstrated a simple recipe unexpectedly reached millions of viewers overnight. Brands began contacting her, ③offering payment in exchange for featuring their products in future videos. Within a year, Soojin was earning more from her online content than most entry-level jobs would ④have paid her. Looking back, Soojin realizes that persistence, rather than luck alone, ⑤transformed her hobby into a sustainable profession.

For centuries, dreams have fascinated scientists and philosophers alike, yet no single theory fully ① explains why the sleeping brain generates such vivid and often bizarre experiences. One prominent idea suggests that dreaming helps the brain process emotional experiences, ② replays difficult events in a safe, low-stakes environment so that their emotional intensity gradually fades. Another theory proposes that dreams serve a more practical function, ③ allowing the brain to rehearse responses to threats without any real danger. Still other researchers argue that dreaming is simply a byproduct of the brain organizing memories, with vivid imagery ④ arising as the mind sorts through the day's information rather than serving any independent purpose of its own. Because these theories rest on indirect evidence, none has ⑤ been conclusively proven.

Limited-edition products are goods that ①are released in small quantities for a short period of time. Many companies use this strategy because scarcity naturally ②increases how much people desire an item. For instance, a sneaker company that releases only a few thousand pairs of a special design can generate long lines outside stores overnight, ③drawing attention from collectors worldwide. However, this psychological pressure can lead to purchases that ④are driven by fear rather than genuine need. Marketers, aware of this pattern, ⑤continues to design new limited releases because urgency reliably drives sales.

Every day, email providers quietly block billions of unwanted messages before they ever reach a user's inbox, a task that ① would be impossible without an AI filtering system running constantly in the background. The filter examines each incoming message for suspicious patterns, including certain keywords, unusual sender addresses, and formatting tricks that scammers commonly rely on ② to slip past detection. What makes the system effective is that it keeps ③ learning after launch: whenever a user marks a message as spam or rescues a message mistakenly filtered out, that action ④ become new training data, sharpening the filter's future decisions. This creates a constant back-and-forth, since spammers study which messages get blocked and then adjust their wording to slip through again, ⑤ resulting in an ongoing contest between each side.

As more businesses move their operations online, cyberattacks ①have become one of the most serious threats facing modern companies. Hackers now target everything from small retail websites to massive financial institutions, ②stealing sensitive data or demanding ransom payments. These specialists design systems ③that detect suspicious activity, patch vulnerabilities before criminals can exploit them, and train employees to recognize phishing attempts. Unlike many technical fields, cybersecurity requires constant learning, ④since hackers continually develop new methods to bypass existing defenses. Universities have responded by creating specialized degree programs, while many companies now ⑤offers scholarships to attract students into this growing field.

Psychologists have long studied a mechanism called the variable reward schedule, in which rewards arrive ①predictably rather than after every single action. Slot machines famously exploit this principle, and social media notifications operate on strikingly similar logic. When someone posts a photo, they cannot predict exactly when likes will appear, nor how many they will eventually receive. This uncertainty triggers a small burst of dopamine each time the phone is checked, regardless of whether the result is ②disappointing or thrilling. Consequently, users often refresh their feeds ③compulsively, hoping the next check will finally bring a satisfying reward. What makes this troubling is that technology companies ④deliberately designed notification systems using insights borrowed from gambling research, rather than stumbling upon them by accident. Such practices raise serious ethical questions about ⑤manipulating users' brains for profit.

Color plays a surprisingly powerful role in how consumers perceive brands, often shaping first impressions before a single word is read. Blue, for instance, is frequently used by financial and technology companies because it tends to evoke feelings of trust and stability. Red, in contrast, is associated with energy and urgency, which explains why it appears so often in logos for fast-food chains and clearance sales. Green typically signals freshness or environmental responsibility, making it a popular choice for organic food brands. Despite these general patterns, ___________. Marketers who ignore these cultural differences risk sending unintended messages to international audiences. For this reason, companies expanding into new markets often conduct extensive research before finalizing a logo's color scheme.

Sleep is not a single, uniform state but a cycle that alternates between two very different modes: REM (rapid eye movement) sleep and non-REM sleep. (A) REM sleep, by contrast, brings rapid eye movements and brain activity resembling wakefulness, and is believed to help consolidate memories and process emotions. (B) A healthy night cycles through both stages several times, and disrupting either one can leave a person feeling unrested despite a full night in bed. (C) During non-REM sleep, particularly its deepest stage, the brain waves slow dramatically and the body focuses on physical repair.

Across many countries, high schools begin classes early in the morning, often before eight o'clock. (A) 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. (B) This schedule assumes that teenagers can simply go to bed earlier to compensate, but biology tells a different story, because the body's internal clock shifts later during adolescence, delaying the release of melatonin until well after ten at night. (C) As a result, most teenagers are not physiologically ready to fall asleep until much later than adults, and when early start times force them to wake before completing a full sleep cycle, the mismatch accumulates into a chronic sleep debt.

When the body fights off an infection, the immune system relies heavily on adequate sleep to function effectively. (A) Rather than being a passive state in which the body simply rests, sleep functions as an active period during which the immune system repairs itself and prepares for future threats, which is why doctors often recommend extra sleep when someone is fighting an illness. (B) Chronic sleep deprivation also appears to promote low-grade inflammation throughout the body, a state that has been linked to a higher risk of heart disease and other chronic conditions. (C) During deep sleep, the body produces and releases cytokines, proteins that help regulate immune responses, and people who consistently sleep fewer than six hours a night show measurably weaker antibody responses after vaccination.