영어 모의고사 (자동 편성)

Feed an AI music program a mood, a tempo, and a rough genre, and within seconds it can generate a complete instrumental track, ①ready to be dropped under a video or used as background music for a small business. The software has studied thousands of existing songs, ②learning which chord progressions and rhythms tend to sound pleasant together, and it recombines these patterns into something new rather than ③copying any single source directly. For independent creators who cannot afford a composer or expensive licensing fees, this has been a genuine breakthrough. Professional musicians, however, remain divided. Some welcome the tool as a quick way to sketch ideas before ④refine them by hand, while others worry that a flood of AI-generated background music could quietly push human composers out of smaller, lower-budget projects, the very jobs many musicians once ⑤relied on to build a career.

Social psychologists describe a phenomenon called the bystander effect, in which individuals become less likely ①helping a victim as the number of witnesses increases. Each observer assumes someone else will step in, and this diffusion of responsibility leaves no one ②willing to act. Cyberbullying magnifies this problem, since a single humiliating post can be witnessed by thousands of people ③scattered across the internet rather than a few standing nearby. Anonymity intensifies the effect further, allowing silent observers ④to scroll past cruel comments without feeling accountable for their inaction. Some bystanders even worry that intervening publicly might make them the bully's next target, so they choose ⑤to remain silent instead.

The term green premium ①describes the extra cost that consumers must pay when they choose an environmentally friendly product or energy source over a conventional, cheaper alternative. For example, an electric vehicle or solar-powered appliance ②often carries a higher price tag than its gasoline-powered or coal-based counterpart, even though it produces fewer emissions over time. This price gap frequently discourages shoppers who support sustainability in principle but cannot justify the additional expense within a limited household budget. In contrast, wealthier consumers can absorb the premium more easily, ③which creates unequal participation in green markets. To narrow this gap, governments have introduced subsidies and tax credits ④that lower upfront costs, while companies invest in research to make clean technologies cheaper to manufacture. As production scales up and innovation continues, many economists expect the green premium ⑤to shrinking steadily, eventually making sustainable choices the more affordable option for most consumers.

Scientists have identified certain gene variants that ①appear more frequently among elite endurance athletes than among the general population, along with a separate set that seems to favor explosive, power-based sports such as sprinting. One frequently studied variant, for instance, ②influences the proportion of slow-twitch versus fast-twitch muscle fibers a person naturally develops, a ratio that shapes whether a body leans toward endurance or explosive power. However, researchers caution strongly against ③interpreting these findings as evidence that athletic greatness is simply inherited. Even athletes who carry every favorable variant identified so far still require years of disciplined training ④to translate that genetic potential into actual performance, and many elite competitors lack some of these supposedly advantageous variants altogether. Genetics may set a rough ceiling on an individual's ultimate potential, but where any particular athlete lands within that range ⑤depend overwhelmingly on training quality, nutrition, coaching, and sheer determination.

Smartphones, tablets, and computer screens all emit a significant amount of blue light, a short-wavelength light that our eyes are especially sensitive to. During the day, exposure to blue light from the sun helps keep us ①drowsy and mentally sharp, which is generally beneficial. At night, however, the same wavelength can interfere with the body's natural preparation for sleep. Specialized cells in the retina detect blue light and send signals to the brain's internal clock, ②suppressing the release of melatonin, the hormone that signals it is time to rest. Studies have found that people who scroll through their phones in bed before sleeping take longer to fall asleep and experience ③lighter, more easily disrupted sleep than those who avoid screens. Some devices now offer a night mode that shifts the display toward ④warmer tones, reducing blue light output in the evening. While this feature may help slightly, sleep researchers generally recommend limiting screen use altogether in the hour before bedtime for the best ⑤results.

Setting a goal such as 'I will study harder' rarely leads to ①meaningful improvement. According to psychologists Edwin Locke and Gary Latham, ②specific and challenging goals produce far better performance than vague or easy ones. This idea, known as goal-setting theory, suggests that ③clear targets direct attention and sustain effort over time. To apply this theory effectively, many educators recommend the SMART framework, which requires goals to be Specific, Measurable, Achievable, Relevant, and Time-bound. For instance, a student following this framework might say, 'I will memorize thirty new words every week for two months.' Because the goal includes a clear number and a deadline, progress becomes easy to ④track and evaluate. Challenging goals also tend to increase motivation, since people often work harder when a target feels meaningfully ⑤easy rather than trivially simple.

주어진 문장: This process cannot happen overnight, since each stage depends on the completion of the one before it. Carbon neutrality refers to a state in which the amount of greenhouse gases a country or company releases into the atmosphere is balanced by the amount it removes, resulting in zero net emissions. ( ① ) Achieving this goal typically requires several sequential stages rather than a single sudden action. ( ② ) First, organizations attempt to reduce emissions directly by replacing fossil fuels with renewable energy sources such as solar or wind power. Next, they improve efficiency throughout their operations, minimizing the energy wasted during production and transportation. ( ③ ) Only after these direct measures have been maximized do most organizations turn to offsetting, which involves funding projects like reforestation or carbon capture to compensate for emissions that cannot yet be eliminated. ( ④ ) Critics argue, however, that some companies exploit offsetting too early, using it to avoid making genuine reductions. ( ⑤ ) Therefore, experts insist that a credible roadmap must always prioritize actual emission cuts before relying on compensation.

주어진 문장: This feeling is not simply nervousness about being alone, but a specific condition that researchers have begun to study closely. Many people feel a sudden wave of anxiety when their smartphone battery is nearly dead or they have left it at home. ( ① ) This intense discomfort, known as nomophobia, is short for "no-mobile-phone phobia," a term describing the fear of losing connection to one's phone. ( ② ) Nomophobia involves physical symptoms, including a racing heart, sweating, and restlessness, whenever a person cannot check messages or social media. ( ③ ) Researchers explain that this fear develops because smartphones have become tightly linked to social belonging; missing a notification can feel like being cut off from friends. ( ④ ) For example, some students check their phones dozens of times an hour, even during class, just to confirm nothing important has been missed. Therefore, experts suggest gradually reducing phone checks to weaken this anxious dependence. ( ⑤ ) Recognizing nomophobia as a real psychological pattern is the first step toward a healthier relationship with technology.

These physiological adjustments, though subtle, translate into a noticeable difference once competition actually begins. Skipping a proper warm-up before intense exercise might seem like a harmless way to save a few minutes, but the practice carries real physiological costs. ( ① ) A cold muscle is stiffer and less elastic than a warm one, making it considerably more prone to strains and tears when suddenly asked to contract forcefully. ( ② ) Gradually raising body temperature through light activity increases blood flow to the muscles, allowing oxygen to reach tissue more efficiently and enabling nerve signals to travel faster between the brain and the muscle fibers. A proper warm-up also raises heart rate gradually, easing the cardiovascular system into strenuous work rather than shocking it with a sudden demand. ( ③ ) Athletes who warm up thoroughly tend to report better performance in the early minutes of competition, since their bodies are already primed rather than adjusting on the fly. ( ④ ) For this reason, coaches treat warm-up routines not as optional preparation but as an essential part of training itself. ( ⑤ )

주어진 문장: Yet this same tendency also carries a hidden drawback. Sociologists use the term homophily to describe the tendency of people to form connections with others who share similar backgrounds, opinions, or interests. ( ① ) This principle explains why classmates from the same major often become close friends, while coworkers with shared hobbies naturally gravitate toward one another. ( ② ) Because similarity reduces the effort required to understand another person's perspective, relationships built on shared traits tend to feel comfortable and require less negotiation. ( ③ ) However, this same comfort can narrow the range of viewpoints someone encounters, since surrounding oneself with similar people limits exposure to different ideas. ( ④ ) Social media platforms intensify this pattern through recommendation algorithms that suggest new friends based on shared interests or similar browsing history. ( ⑤ ) As a result, users often find their online circles becoming increasingly homogeneous, filled with people who think and behave much like themselves.