영어 모의고사 (자동 편성)

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. A cold muscle is ① more flexible and less elastic than a warm one, making it considerably more prone to strains and tears when suddenly asked to contract forcefully. Gradually raising body temperature through light activity ② 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, ③ easing the cardiovascular system into strenuous work rather than shocking it with a sudden demand. Athletes who warm up thoroughly tend to report ④ better performance in the early minutes of competition, since their bodies are already ⑤ primed rather than adjusting on the fly.

As efforts to ①curb greenhouse gas emissions intensify, industries unable to eliminate carbon dioxide from their processes have turned to a technology known as carbon capture and storage. This technology involves separating carbon dioxide from the exhaust of power plants before it is released into the atmosphere, then transporting the captured gas for underground injection. Once injected into porous rock formations, the gas is trapped beneath layers of impermeable rock that prevent it from escaping into the air. Proponents argue that carbon capture and storage functions as a bridge technology, allowing heavy industries to keep operating while more sustainable alternatives are ②developed. For instance, cement and steel production, both of which release carbon dioxide as an ③unavoidable byproduct of chemical reactions, are considered prime candidates for this approach. However, critics contend that the technology remains prohibitively ④cheap and that building pipelines requires investments few companies make voluntarily. Despite such concerns, many governments continue funding pilot projects, convinced that this technology will play an ⑤indispensable role in reaching emission targets.

Last summer, our neighborhood association invited students to help paint a mural on the long wall beside the community center, and nearly forty volunteers with completely different painting abilities showed up on the first day. I worried that combining so many different skill levels would create an ① ugly, mismatched result, since some volunteers had painted for years while others, including me, had never held a large brush before. The project leader solved this by dividing the huge design into small, connected sections and assigning each volunteer a section matched to their ② comfort level, from simple solid-color backgrounds to detailed flowers. Beginners filled in wide open skies, while experienced painters added fine details like veins on leaves or shadows under birds. When the plastic sheets finally came down, the mural looked remarkably ③ unified, not despite the many different hands involved, but because each hand had been given a task ④ unrelated to what it could do well, which made the ⑤ collaboration feel effortless in the end.

Every semester, students groan when the fire alarm rings for another routine drill, filing out of the building as if the exercise were simply a break from class. During an actual fire, thick smoke can fill hallways within minutes, cutting visibility to almost nothing and making it dangerously easy to panic or take a wrong turn. Repeating the same evacuation route again and again trains the body to move automatically, even when the mind is too frightened to think clearly. Firefighters note that _______________. A fire drill that feels pointless in the classroom can therefore become the very reason a real evacuation succeeds without injury.

Many schools give students a list of recommended books at the start of each year. Choosing these books is not as simple as picking well-known titles. Teachers must think about a wide range of student interests, not just their own favorites. A good list should also include stories from different cultures and different kinds of characters, so that every student can find someone to relate to. Reading level matters too; a book that is too difficult can make a student give up on reading altogether, while a book that is too easy may feel boring. Teachers often ask students for feedback after they finish a book, and they slowly update the list based on what students actually enjoyed. In the end, _______________.

Have you ever felt a boring class lasted forever while an exciting weekend disappeared in an instant? This common experience reflects what psychologists call the distortion of time perception: ___________. Researchers explain that people who focus intensely on an enjoyable activity process fewer separate moments, so time seems to pass quickly. In contrast, bored or anxious people pay closer attention to each moment, making time feel as though it is dragging.

Psychologists have long studied how people determine their own worth by looking at those around them. (A) Festinger's theory explains this tendency, showing that individuals often compare themselves with others to evaluate their own abilities and opinions. (B) When people compare themselves with someone who seems more accomplished, a process called upward comparison, they often experience envy and lower self-esteem. (C) Social media intensifies this effect by constantly presenting curated images of other people's seemingly perfect lives.

Scientists have studied exactly how a habit becomes part of daily life over time. (A) In the early stage, the brain still treats the new activity as unusual, so a person must rely heavily on willpower to continue. (B) By the final stage, the behavior no longer requires effort, since it has become a natural and comfortable part of the daily routine. (C) As the weeks pass, the behavior gradually becomes easier because the brain begins to expect it at a certain time each day.

Change blindness refers to a striking limitation of human perception in which observers fail to notice substantial alterations to a visual scene, provided the change occurs during a brief disruption such as an eye movement or a momentary obstruction. (A) In a now-famous demonstration, researchers showed participants two versions of a photograph in alternation, separated by a short blank screen, and asked them to identify what had changed. Even when an entire building disappeared or a person's clothing shifted color, many viewers stared at the picture without detecting anything unusual. (B) Consequently, change blindness demonstrates that our impression of a rich, complete visual world is, to a surprising extent, an illusion constructed by the mind, not a faithful record of external reality. (C) This phenomenon occurs because visual attention, rather than passively recording every detail like a camera, actively selects only a narrow subset of information for processing at any given moment. Whatever falls outside that narrow spotlight is represented only sparsely, if at all, leaving it vulnerable to being overwritten without notice.

In other words, people want the safest outcome for society in theory, but the safest outcome for themselves in practice. When engineers design the software that controls a self-driving car, they inevitably face a question that philosophers have debated for decades. ( ① ) If a crash becomes unavoidable, should the vehicle protect its own passenger at all costs, or should it be programmed to minimize total harm, even if that means steering toward the person inside? ( ② ) Surveys reveal an uncomfortable contradiction: most people say a car should be programmed to save the greater number of lives. ( ③ ) Yet the same people admit they would never buy a vehicle designed to sacrifice its own owner. ( ④ ) This gap between the ideal and the personal choice suggests that ethical programming cannot be settled by public opinion alone. ( ⑤ ) Manufacturers, regulators, and philosophers must instead agree on transparent rules before autonomous vehicles are allowed to make such decisions.