영어 모의고사 (자동 편성)

Caffeine is the most widely consumed stimulant in the world, ①prizing for its ability to 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 ②makes us feel increasingly sleepy the longer we stay awake. By occupying the receptors that adenosine would normally bind to, caffeine tricks the brain into ③feeling 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 ④consumed in the late afternoon may still be interfering with the ability to fall asleep at midnight. Even when people do not consciously notice difficulty falling asleep, caffeine has been shown ⑤to reduce the amount of deep, restorative sleep obtained later in the night.

Modern factories increasingly rely on collaborative robots, often called cobots, which are designed to work ①safely alongside human employees. Unlike traditional industrial robots that operate behind safety cages, cobots use sensors to detect nearby workers and adjust their movements accordingly. Cobots typically handle repetitive or physically demanding tasks, while human workers focus on tasks that require ②judgment and fine motor skills. This division of labor increases overall ③efficiency, since each side contributes what it does best. Manufacturers who have introduced cobots report ④more workplace injuries, largely because employees no longer perform exhausting repetitive motions all day. As the technology becomes more affordable, smaller companies are also beginning to ⑤adopt cobots.

Sleep debt refers to the ①cumulative gap between the amount of sleep a person needs and the amount they actually get. Unlike a financial debt, however, this deficit cannot simply be ②repaid with a single long weekend of rest. When someone loses two hours of sleep every night for a week, the body does not treat the shortage as fourteen separate small losses; instead, it ③accumulates the deficit, and the resulting impairment in attention and mood can resemble that of a person who has been awake for an entire night. Researchers have found that even modest, chronic sleep restriction gradually impairs reaction time and decision-making, often without the affected person noticing the decline. This is because subjective feelings of tiredness tend to plateau after a few days, even as objective performance keeps deteriorating. Consequently, people frequently ④underestimate how much sleep debt they are carrying until a demanding task suddenly exposes the ⑤diminished cost.

VO2 max, defined as the maximum volume of oxygen a person's body can consume and use during intense exercise, is widely regarded as one of the best single indicators of cardiorespiratory fitness. Elite endurance athletes typically post VO2 max values far higher than those of untrained individuals. While genetics accounts for a substantial portion of an individual's potential VO2 max, consistent aerobic training can still raise the measurement considerably over months of dedicated effort. It is worth noting, however, that a high VO2 max does not guarantee success in competition, since _______________.

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.

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.

Personalized advertising has sparked an ongoing debate between technology companies and privacy advocates. (A) Privacy advocates, on the other hand, warn that constant tracking erodes users' control over their own personal information. (B) Technology companies argue that analyzing user data allows them to deliver advertisements that consumers actually find useful. (C) Given these opposing views, many experts call for clearer regulations that balance innovation with individual rights.

주어진 문장: Not everyone welcomes this shift, however, and some worry that it comes at a cost. As technology continues to reshape the job market, educators and employers increasingly agree on which skills will matter most in the coming decades. ( ① ) Technical literacy, including basic coding and data analysis, has become nearly as fundamental as reading and writing once were. ( ② ) Schools have begun redesigning curricula to emphasize problem-solving and adaptability, moving away from rote memorization toward project-based learning that mirrors real workplace challenges. ( ③ ) Most experts insist that a balanced combination of technical skill, adaptability, and communication will define successful careers ahead. ( ④ ) Communication skills matter as well, since many future jobs will require collaborating with both human colleagues and intelligent systems. ( ⑤ )

주어진 문장: Once audiences discover that a recommendation was insincere, they rarely trust that influencer again. Influencer marketing has become one of the most powerful tools that companies use to reach young consumers. ( ① ) Unlike traditional advertisements, which often feel distant and impersonal, posts created by influencers seem more like advice from a trusted friend. ( ② ) This sense of closeness, built through years of sharing daily life online, makes followers more willing to trust product recommendations than ordinary commercials. ( ③ ) However, this trust can be exploited when influencers promote products they have never actually tried. ( ④ ) As a result, several countries now require influencers to clearly disclose paid partnerships before posting sponsored content. ( ⑤ ) In the end, influencer marketing works best when it stays grounded in authenticity rather than mere popularity.

For this reason, nutritionists generally advise spreading moderate portions of protein evenly across several meals throughout the day rather than saving it all for one large post-workout meal. After a strenuous workout, muscle fibers experience thousands of microscopic tears, and the body immediately begins a repair process that ultimately makes the muscle stronger than it was before. ( ① ) This repair depends heavily on amino acids, the building blocks that protein supplies, which is why sports scientists recommend consuming protein within a couple of hours after training. ( ② ) Waiting too long to eat can slow recovery, since a muscle's sensitivity to amino acids gradually declines once that window closes. ( ③ ) Many athletes assume that eating an enormous quantity of protein in a single sitting will speed up this process. ( ④ ) But the body can only use a limited amount at once; the rest is simply burned for energy or stored as fat. ( ⑤ )