영어 모의고사 (자동 편성)

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 ①higher than those of untrained individuals, reflecting hearts that pump larger volumes of blood and muscles that extract oxygen from that blood with remarkable efficiency. While genetics accounts for a substantial portion of an individual's potential VO2 max, consistent aerobic training can still ②raise the measurement considerably over months of dedicated effort. Interval training, which alternates short bursts of near-maximal effort with periods of recovery, has proven particularly ③effective at improving this measurement compared to steady, moderate-intensity exercise alone. It is worth noting, however, that a high VO2 max does not guarantee success in competition, since factors such as running economy, pacing strategy, and mental resilience also play a ④decisive role in determining who actually crosses the finish line first. These additional factors remain ⑤irrelevant to overall performance.

As technology continues to reshape the job market, educators and employers increasingly agree on which skills will matter most in the coming decades. Technical literacy, including basic coding and data analysis, has become nearly as ①fundamental as reading and writing once were. Beyond technical knowledge, however, employers consistently rank problem-solving and adaptability among the most ②valuable qualities in job candidates. Workers who can quickly learn new tools and adjust to unfamiliar situations tend to remain ③employable even as entire industries transform. Schools have begun redesigning curricula to emphasize these competencies, moving away from memorization toward project-based learning that mirrors real workplace ④comfort. Most experts insist that a balanced combination of technical skill, adaptability, and communication will define successful careers ⑤ahead.

Automation is transforming labor markets more ①quickly than economists predicted a decade ago. Factories once staffed by hundreds of workers now rely on robotic arms that assemble products with remarkable ②precision. This shift does not simply eliminate jobs; it also creates roles that never existed before, so technicians who maintain robotic equipment are now in high ③demand. Companies that invested early in automation often report steady increases in productivity, since machines handle repetitive tasks while employees focus on ④creative problem-solving. Without proper retraining support, the benefits of automation may not be shared fairly, ⑤narrowing inequality between skilled and unskilled labor.

Influencer marketing has become one of the most powerful tools that companies use to reach young consumers. Unlike traditional advertisements, which often feel distant and impersonal, posts created by influencers seem more like advice from a trusted friend. This sense of closeness, built through years of sharing daily life online, makes followers more willing to trust product recommendations than ordinary commercials. For example, a skincare brand promoted by a popular lifestyle influencer can sell out within hours simply because her audience believes her opinions are honest. Consumers are becoming more ①careless, checking whether reviews are sponsored before making a purchase. In the end, influencer marketing works best when it ②stays ③grounded in ④authenticity rather than mere ⑤popularity.

Modern advertising increasingly relies on personal data collected from users' browsing habits, search histories, and social media activity. Companies argue that this approach benefits consumers by showing advertisements that are more relevant to their actual interests rather than random, generic promotions. However, many critics contend that this level of tracking raises serious concerns about privacy, since users rarely understand how extensively their behavior is being monitored. Some algorithms can predict purchasing decisions before consumers themselves are consciously aware of them, which feels unsettling to many people. Furthermore, personalized advertising can trap users in a narrow bubble, repeatedly showing them similar products and limiting their exposure to alternatives. Given these competing concerns, policymakers must ___________.

Sleep apnea is a disorder in which breathing repeatedly stops and restarts during sleep, often because the muscles at the back of the throat relax too much and block the airway. Each pause can last from a few seconds to over a minute, and it may occur dozens of times in a single night without the sleeper ever waking up fully. Because these interruptions rarely produce a clear memory the next morning, _______________, even as chronic fatigue, headaches, and irritability build up over months. Doctors therefore rely less on a patient's own account of the night and more on objective measurements, such as overnight oxygen levels and airflow patterns recorded in a sleep laboratory. Left untreated, the disorder has been linked to serious long-term risks, including high blood pressure and heart disease, which makes an accurate diagnosis far more urgent than its subtle nighttime symptoms might suggest.

When the body fights off an infection, the immune system relies heavily on adequate sleep to function effectively. During deep sleep, the body produces and releases cytokines, proteins that help regulate immune responses and coordinate the fight against harmful invaders. 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 _______________. 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. Rather than being a passive state, sleep functions as an active period during which the immune system repairs itself and prepares for future threats.

Scarcity has long been recognized as one of the most effective psychological triggers in marketing. (A) For this reason, limited releases often create long lines and instant sellouts, even when the product itself is not extraordinary. (B) Consumers, fearing that they might miss a rare opportunity, tend to make quick decisions without much thought. (C) Yet this excitement can fade quickly once the item is finally obtained, leaving buyers with regret rather than satisfaction.

주어진 문장: Still, the risk of falling behind outweighs the discomfort of constant adjustment, most experts say. As technology continues to reshape nearly every profession, the idea of finishing education after graduation has become outdated. ( ① ) Workers who once expected their initial training to last an entire career now find that skills can become obsolete within just a few years. ( ② ) Lifelong learning, therefore, has shifted from being an optional pursuit to a practical necessity for staying competitive in the job market. ( ③ ) Many professionals now take short online courses, attend workshops, or earn new certifications while continuing to work full-time. ( ④ ) Critics argue that constant learning can be exhausting and difficult to balance with personal responsibilities. ( ⑤ ) In a rapidly changing economy, the ability to learn continuously may matter more than any single degree.

This built-in schedule does not simply respond to the clock on the wall; it is shaped directly by light itself. Every cell in the human body follows an internal timer known as the circadian rhythm, a roughly twenty-four-hour cycle that governs when we feel alert and when we feel drowsy. ( ① ) This clock is regulated primarily by a tiny cluster of neurons in the brain that responds to light entering through the eyes. ( ② ) When morning sunlight strikes the retina, the cluster signals the body to suppress sleep hormones and raise body temperature, preparing us for activity. ( ③ ) As evening approaches and light fades, the same mechanism triggers the release of melatonin, a hormone that promotes drowsiness. ( ④ ) Because this rhythm evolved around the natural cycle of day and night, modern habits such as staying indoors under artificial light or working night shifts can push the internal clock out of sync with the external environment. ( ⑤ ) Such misalignment does not simply cause tiredness; it has also been associated with digestive problems and reduced concentration, suggesting that timing matters as much as total sleep hours.