영어 모의고사 (자동 편성)

Travelers who cross several time zones in a single flight often arrive ① feeling exhausted, foggy, and strangely out of sync with the local clock. The discomfort arises because the body's internal clock, ② which 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 ③ to adjust for every time zone crossed. Flying eastward tends to produce more severe symptoms than flying westward, because advancing the internal clock forward ④ are 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 ⑤ uses to reset itself.

Retailers frequently rely on sales events to boost short-term revenue, but the psychology behind these promotions is more complex than simple discounting. When a price is crossed out and replaced with a lower number, consumers instinctively ①perceive the new price as a bargain. This technique, ②known as anchoring, shapes how shoppers judge value by comparing prices rather than evaluating a product on its own merits. Limited-time sales further intensify this effect, since a ticking clock ③encourage rushed decisions that leave little room for careful comparison. Retailers also use phrases such as "while supplies last" to suggest scarcity, even when inventory ④remains plentiful. Over time, frequent sales can actually train customers ⑤to wait for discounts rather than buy at full price.

Caffeine is the most widely consumed stimulant in the world, prized for its ability to ① sharpen focus and fight off fatigue within minutes of consumption. It works by blocking adenosine, a chemical that gradually builds up in the brain throughout the day and makes us feel ② decreasingly sleepy the longer we stay awake. By occupying the receptors that adenosine would normally bind to, caffeine tricks the brain into feeling alert even when the body has accumulated significant sleep pressure. The effects, however, last far longer than most people realize. Because caffeine can remain active in the bloodstream for five to six hours, a cup of coffee consumed in the late afternoon may still be ③ interfering with the ability to fall asleep at midnight. Even when people do not consciously notice difficulty falling asleep, caffeine has been shown to ④ reduce the amount of deep, restorative sleep obtained later in the night. For this reason, many sleep specialists advise ⑤ avoiding caffeine after early afternoon.

Anyone who has ridden a bicycle after a decade away from one has likely experienced muscle memory firsthand: the body seems to recall a complex skill almost instantly, even when conscious memory of the exact movements has faded. Contrary to what the name suggests, muscles themselves do not actually store memories; the phenomenon originates in the brain and nervous system, where repeated practice gradually shifts control of a well-learned movement from regions associated with conscious thought to areas that operate largely automatically. This shift explains why a skilled athlete can execute a complicated sequence of movements without consciously thinking through each individual step, freeing mental attention for strategy and decision-making instead. Interestingly, research also suggests that _______________.

Imagine a classroom discussion where nearly everyone seems to support one viewpoint. (A) As more silence accumulates, the minority opinion appears rarer than it truly is, discouraging even more people from speaking. (B) A student who privately disagrees might quickly sense this imbalance and decide to remain quiet rather than face disapproval. (C) This exact pattern, described by the spiral of silence theory, also unfolds across entire societies and online communities.

Musicians, meanwhile, have mixed feelings about this shift in how audiences discover new music. Open a music streaming app on any given morning, and a personalized playlist is usually already waiting, assembled overnight from songs the algorithm predicts will match a listener's current mood. ( ① ) This prediction relies on far more than genre alone; the system studies skip rates, replay counts, and even the time of day a song is typically played to build a remarkably detailed profile of individual taste. ( ② ) Listeners often praise the feature for introducing them to artists they never would have searched for on their own, effectively acting as a tireless music scout working around the clock. ( ③ ) A song that the algorithm decides not to promote may struggle to reach listeners no matter how well it was written. ( ④ ) This means that an artist's success can depend as much on pleasing an algorithm as on pleasing an actual audience. ( ⑤ )

주어진 문장: Many of them said they had simply seen photos online and wanted to experience the space for themselves. Last spring, a small cosmetics brand opened a pop-up store in a busy shopping district for just two weeks. ( ① ) Rather than displaying products in the usual manner, the team designed the space to resemble a colorful garden, inviting visitors to explore and take photographs. ( ② ) Word spread quickly through social media as customers shared images of the unusual setting with their friends and followers. ( ③ ) Lines formed outside the store within days, even though the products themselves were already available online. ( ④ ) Curious about this success, a marketing researcher later interviewed several visitors, who explained that the temporary nature of the event made the experience feel special. ( ⑤ ) Many admitted they had never previously purchased from the brand but decided to buy something simply to remember the visit.

This connection is not merely correlational; sleep appears to directly supply the raw materials the immune system needs. When the body fights off an infection, the immune system relies heavily on adequate sleep to function effectively. ( ① ) During deep sleep, the body produces and releases cytokines, proteins that help regulate immune responses and coordinate the fight against harmful invaders such as viruses and bacteria. ( ② ) People who consistently sleep fewer than six hours a night show measurably weaker antibody responses after vaccination compared with those who sleep seven or eight hours, suggesting that sleep loss can blunt the immune system's ability to build lasting protection. ( ③ ) Chronic sleep deprivation also appears to promote low-grade inflammation throughout the body, a state that, over time, has been linked to a higher risk of heart disease and other chronic conditions. ( ④ ) 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. ( ⑤ ) This is why doctors often recommend extra sleep, not just medication, when someone is fighting an illness.

주어진 문장: This is a significant shift from earlier generations, who often stuck with a single trusted brand for years. Generation Z, typically defined as those born between the late 1990s and early 2010s, approaches shopping quite differently from previous generations. ( ① ) Having grown up with smartphones and social media, they research products extensively online before making even small purchases. ( ② ) Unlike older generations, who often valued brand loyalty above all else, many members of Generation Z prioritize a company's values, switching brands easily if one no longer matches their beliefs. ( ③ ) They also tend to favor secondhand and resale platforms, viewing sustainability as an important factor rather than an afterthought. ( ④ ) Peer recommendations shared through short videos frequently carry more weight than traditional celebrity endorsements. ( ⑤ ) Businesses that fail to adapt to these preferences risk losing an entire generation of potential customers.

주어진 문장: Without such outside checks, companies could easily present exaggerated or even false claims as genuine achievements. As consumers become more aware of global social and environmental issues, many now expect companies to take responsibility beyond simply selling products. ( ① ) This expectation has given rise to ethical consumption, in which shoppers consider factors such as fair wages, humane treatment of animals, and environmental sustainability before making purchases. ( ② ) Companies that ignore these concerns risk public backlash, especially when unethical practices are exposed through investigative journalism or social media. ( ③ ) Some corporations have responded by publishing detailed sustainability reports, though critics question whether these documents reflect genuine change or merely serve as public relations tools. ( ④ ) Real accountability, according to many experts, requires independent verification rather than self-reported claims that cannot be easily checked. ( ⑤ ) Consumers, for their part, must also remain vigilant, since a company's marketing language does not always match its actual practices.