영어 모의고사 (자동 편성)

The science club at Hanul High School is running a project ①called "Grow Light." It tests how different colors of light affect plant growth. Each week, members place identical bean sprouts under red, blue, and white light and ②record their height. At first, many students expected the white light ③to produce the tallest plants. However, the results showed that plants under red light grew noticeably ④fast than the others. The club's advisor explained this by comparing light to food. Just as people need certain nutrients to grow strong, plants absorb certain colors of light more efficiently than others. To make the data reliable, students repeat each trial three times and calculate the average. They also keep a shared notebook, ⑤recording sunlight, watering time, and temperature.

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 ①more 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 ②increases 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, ③easing the cardiovascular system into strenuous work rather than shocking it with a sudden demand. Athletes who warm up thoroughly tend to report ④better performance in the early minutes of competition, since their bodies are already ⑤primed rather than adjusting on the fly.

Have you ever noticed your mood shifting after scrolling through a friend's ①gloomy post online? However, researchers have ②discovered that emotional contagion also occurs online, where only text or images are exchanged, without any physical presence at all. For instance, when someone posts a ③negative comment beneath a cheerful photo, the comments that follow often turn noticeably more negative in tone. In contrast, a single ④kind comment can shift an entire thread toward positivity within minutes. Consequently, many experts now argue that being ⑤careless of what we post matters more than we typically assume.

Many people believe that a new habit becomes automatic after only twenty-one days, but researchers who examined real behavior found a different number. This project, called the 66-day habit formation study, tracked volunteers who tried to adopt a new daily habit, like drinking water with lunch. Researchers measured how automatic each action felt over time and found that habits needed ___________. Yet the actual time varied widely, ranging from about eighteen days for simple habits to over two hundred days for difficult ones. This wide range explains why the popular twenty-one-day claim, though easy to remember, rarely matches real experience.

For decades, productivity advice has focused almost entirely on managing time efficiently, yet many experts now argue this approach overlooks something important. This alternative approach, known as energy management, suggests that ___________. Unlike time, which flows at a constant rate, human energy naturally rises and falls in cycles shaped by sleep, food, and mental fatigue. A person who tackles difficult tasks during a low-energy period, for instance, may need two hours to finish what takes thirty minutes at peak energy.

Setting a career plan early in high school offers several important benefits. (A) However, this plan should remain flexible, since interests and circumstances often change during the teenage years. (B) A clear direction helps students choose subjects and activities that support their goals. (C) For this reason, counselors recommend reviewing and adjusting a plan every few months.

Whole, uncut melons, however, can be stored at room temperature until you are ready to eat them. Summer brings a wide variety of delicious fruits, but many of them spoil quickly in the heat. ( ① ) Knowing how to store fruit properly can help you avoid waste and enjoy fresher flavors. ( ② ) Fruits such as watermelon and melon should be kept in the refrigerator once they are cut, since exposure to warm air speeds up spoiling. ( ③ ) Berries are especially delicate and should not be washed until just before eating, because moisture encourages mold to grow. ( ④ ) Bananas, on the other hand, turn black quickly in cold air, so they are best kept on the counter. ( ⑤ ) Wrapping cut fruit tightly in plastic wrap also helps keep it fresh longer.

주어진 문장: This memory advantage occurs because the brain treats an open task as unresolved business that deserves continued attention. Have you ever noticed that an unfinished task keeps returning to your mind long after you stopped working? ( ① ) This phenomenon was first noticed by psychologist Bluma Zeigarnik, who saw that waiters remembered unpaid orders better than paid ones. ( ② ) Her observation led to what is now called the Zeigarnik effect: people remember incomplete tasks more vividly than completed ones. ( ③ ) According to this theory, the mind maintains mental tension until a task reaches closure, keeping the unfinished task active in memory. ( ④ ) Once the task is completed, the tension is released, and the mind lets go of the details. This effect explains why students often think about unsolved homework even during unrelated activities like eating dinner. It also explains why writing down an incomplete plan can reduce anxiety, since a note serves as temporary closure. Teachers sometimes use this principle, leaving lessons purposely unfinished to encourage students to keep thinking about the material. ( ⑤ )

주어진 문장: Because the number of likes a post will receive is never guaranteed, every notification carries a small element of suspense. Psychologists have long studied a mechanism called the variable reward schedule, in which rewards arrive unpredictably rather than after every single action. ( ① ) Slot machines famously exploit this principle, and social media notifications operate on strikingly similar logic. ( ② ) When someone posts a photo, they cannot predict exactly when likes will appear, nor how many they will eventually receive. ( ③ ) This uncertainty triggers a small burst of dopamine each time the phone is checked, regardless of whether the result is disappointing or thrilling. ( ④ ) Consequently, users often refresh their feeds compulsively, hoping the next check will finally bring a satisfying reward. ( ⑤ ) What makes this troubling is that technology companies deliberately designed notification systems using insights borrowed from gambling research, rather than stumbling upon them by accident. Such practices raise serious ethical questions about manipulating users' brains for profit. Therefore, people must consciously recognize this hidden mechanism and set firm limits on their checking habits.

None of these individual passersby, however, has any direct evidence that the food itself is worth the wait. Consider how a line forms outside a small restaurant on an otherwise quiet street. ( ① ) The first few patrons may have arrived simply because of a personal recommendation or a delayed reservation, factors entirely unrelated to the restaurant's actual quality. ( ② ) As the line grows, passersby begin to notice it and, assuming that such popularity must be earned, decide to join the queue themselves. ( ③ ) Each additional person who joins makes the line appear even more compelling to the next passerby, creating a self-reinforcing cycle of imitation. ( ④ ) They are, in effect, relying entirely on the visible behavior of strangers as a proxy for information they do not personally possess. ( ⑤ ) The restaurant's true culinary merit, whatever it may be, has become almost irrelevant to the continued growth of the line.