영어 모의고사 (자동 편성)

Last spring, a small cosmetics brand opened a pop-up store in a busy shopping district for just two weeks. Rather than displaying products in the usual manner, the team ①designed the space to resemble a colorful garden, inviting visitors to explore and take photographs. Word spread quickly through social media as customers ②shared images of the unusual setting with their friends and followers. Curious about this success, a marketing researcher later interviewed several visitors, ③who explained that the temporary nature of the event made the experience feel special. Many admitted they had never previously purchased from the brand but ④decided to buy something simply to remember the visit. When the two weeks ended, the brand reported a significant increase in both sales and social media ⑤follower.

Researchers who study teenagers have found a ①strong 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 ②lower on tests of memory and attention than those who sleep 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 encountered during the day, converting fragile short-term memories into more ③durable 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 feels ④unfamiliar the next morning. For this reason, some schools have begun ⑤confirming early start times, reasoning that an extra hour of sleep might do more for test scores than an extra hour of studying ever could.

Soyeon joined an online study group chat where dozens of students planned a class project together every evening. When one member suggested skipping a required survey step to save time, several others ①quickly agreed, and no one raised any objections. Soyeon ②privately worried that skipping the survey might weaken their project, but seeing everyone else nodding along, she stayed ③vocal rather than risk sounding difficult. The group proceeded confidently, convinced their shortcut was harmless, until their teacher pointed out ④serious gaps once the project was submitted. She realized that the chat's friendly, unified atmosphere had actually discouraged critical thinking, making poor decisions feel completely ⑤normal at the time.

As artificial intelligence grows more capable of performing tasks once considered exclusively human, many people wonder which skills will remain valuable in the future. AI can now analyze data, generate text, and even diagnose certain medical conditions with ①impressive accuracy. However, most researchers argue that AI still ②struggles with tasks requiring genuine empathy, ethical judgment, and creative problem-solving in unfamiliar situations. A machine can recommend a treatment plan based on statistics, for instance, but it can ③easily comfort a frightened patient the way a compassionate nurse can. Similarly, AI can generate countless design variations, yet it ④lacks the lived experience that allows humans to judge which idea truly resonates with people. For this reason, educators increasingly emphasize skills such as collaboration and emotional intelligence, arguing that these human capabilities will become more ⑤valuable as automation spreads.

The concept of energy management has gained popularity among workplace researchers who study how people sustain productivity throughout the day. (A) For this reason, experts recommend that people identify the hours when they naturally feel most alert and schedule their most demanding tasks during those windows. (B) Unlike time, which passes at the same rate for everyone, personal energy fluctuates throughout the day depending on factors such as sleep and nutrition. (C) Simple or repetitive tasks, on the other hand, can be handled during low-energy periods without much loss in quality.

Social media algorithms are designed to keep users engaged by showing them content they are likely to enjoy. (A) As a result, users are gradually exposed to a narrower and narrower range of perspectives over time. (B) This pattern, known as an echo chamber, can eventually lead to greater political polarization within a society. (C) To achieve this goal, the algorithms recommend posts and articles similar to what a user has already liked or shared.

Many students assume that old social media posts disappear once enough time has passed. (A) A few years later, however, a teacher reviewing her application happened to notice an old, unkind comment she had posted and forgotten. (B) Minji, for instance, once left a careless comment mocking a classmate, assuming no one would ever see it again. (C) This experience taught her that a digital footprint, the lasting trail left by online activity, can resurface at unexpected moments.

Retailers rarely leave the shopping environment to chance. (A) For instance, cheerful background music and pleasant lighting are chosen specifically to keep shoppers relaxed and unhurried. (B) Every detail, from store layout to background music, is carefully designed to influence customer behavior. (C) As a result, customers often spend more time browsing and end up buying items they never intended to purchase.

주어진 문장: At first glance, this seems to suggest that Dunbar's theory no longer applies in the digital age. Anthropologist Robin Dunbar proposed a concept now known as Dunbar's number, suggesting that human beings can only maintain about one hundred fifty stable social relationships at any given time. ( ① ) This limit, he argued, comes from the size of the human brain, which restricts how many meaningful connections a person can cognitively manage. ( ② ) In contrast, many social media users today have hundreds or even thousands of online friends and followers, a number far exceeding what Dunbar's research predicts. ( ③ ) However, having numerous digital contacts does not necessarily mean that all of these relationships are close or emotionally supportive. ( ④ ) Most users, when asked, admit that they interact regularly with only a small fraction of their total followers, while the rest remain largely unnoticed. ( ⑤ ) Therefore, Dunbar's number reminds us that genuine, lasting relationships require consistent effort and attention, something that a large online network alone cannot provide.

This mismatch between internal time and local time is the true source of the problem, not the flight itself. Travelers who cross several time zones in a single flight often arrive feeling exhausted, foggy, and strangely out of sync with the local clock, a condition widely known as jet lag. ( ① ) The discomfort arises because the body's internal clock, which governs sleep, hunger, and alertness, continues to run on the schedule of the departure city even after landing. ( ② ) Realigning this internal clock to a new time zone is not instantaneous; researchers estimate that the body typically needs about one day to adjust for every time zone crossed. ( ③ ) Flying eastward tends to produce more severe symptoms than flying westward, because advancing the internal clock forward is generally harder for the body than delaying it. ( ④ ) 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 uses to reset itself. ( ⑤ ) Without such adjustments, travelers may continue to experience disrupted sleep and reduced concentration for several days after a long international flight.