영어 모의고사 (자동 편성)

When Mina was a freshman, she often ①spent her allowance within a few days. Her older cousin told her about the marshmallow experiment, a famous study ②in which children could eat one marshmallow immediately or wait for two. Researchers found that children who waited longer ③shown better academic performance and self-control years later. Inspired by the study, Mina began ④saving half of her allowance each week instead of spending it all on snacks. After three months, however, she had saved enough to buy a bicycle she had ⑤wanted for over a year.

Consider a village green shared freely by every herder in the community, where each individual may graze as many animals as they wish without ①paying any fee. From the perspective of any single herder, adding one more animal to the shared pasture ②brings a clear personal benefit, since the extra income belongs entirely to that herder alone. The cost of the additional grazing, however, is spread thinly across every herder who uses the green, so no single individual ③bears more than a tiny fraction of the damage. Because this calculation favors adding more animals for every rational herder, the shared pasture is gradually overgrazed until it can no longer ④support any animals at all, harming the very community whose rational members caused the collapse. Philosophers use this scenario to illustrate a troubling gap between what benefits an individual in the short term and what preserves a shared resource in the long term, a gap that voluntary self-restraint alone rarely ⑤closing.

The twenty-hour rule proposes that years of practice ①are not needed to become skilled at a new activity. Only about twenty hours of effort are needed to reach a useful level. Unlike theories ②claiming true mastery requires ten thousand hours, this rule targets a more modest goal. According to supporters, practicing any new skill produces the fastest visible improvement, since a beginner ③has room to grow. Someone learning guitar can typically strum simple chords and follow a basic song within twenty hours of ④daily practice. Advocates emphasize that the twenty hours must be deliberate and focused, broken into short daily sessions rather than one long stretch, and ⑤aims at fixing weaknesses rather than repeating what one already knows.

Psychologists who study daily behavior describe habits through a model called the cue-routine-reward loop. This theory explains that every habit ①begins with a cue, a signal that tells the brain to start an ②automatic behavior. The brain then performs a routine, which is the action itself, whether physical or mental. Finally, the brain receives a reward, a ③negative feeling that makes it want to ④repeat the same behavior. For example, a notification sound can act as a cue that leads a student to check a phone, and the relief from boredom becomes the reward. Similarly, opening a refrigerator out of habit rather than hunger shows how a routine can run almost without ⑤conscious thought. Because this loop operates automatically, breaking a bad habit requires changing the routine while keeping the same cue and reward. Understanding this structure helps people redesign daily patterns more effectively than relying on willpower alone.

Behavioral economists use the term temporal discounting to describe how people ①undervalue future rewards simply because those rewards are not immediate. This tendency explains why a student might choose to watch videos tonight rather than study for an exam that remains several weeks away, even though studying offers a ②smaller long-term benefit. A distant reward, no matter how valuable, feels psychologically smaller than a small reward available right now. This bias contributes to procrastination, since future consequences rarely feel ③urgent enough to motivate immediate action. To counter this tendency, students should ④convert distant goals into smaller, near-term milestones that feel more emotionally real. Setting weekly checkpoints rather than a final deadline can make future benefits feel ⑤closer and more concrete.

The science club at Hanul High School is running a project called "Grow Light." It tests how different colors of light affect plant growth. Each week, members place ①identical bean sprouts under red, blue, and white light and record their height. At first, many students expected the white light to produce the tallest plants. However, the results showed that plants under red light grew ②noticeably faster 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 ③efficiently than others. To make the data ④reliable, students repeat each trial three times and calculate the average. They also keep a shared notebook, recording sunlight, watering time, and temperature. Next month, the club plans to ⑤hide these findings at the school science fair.

Last Saturday, Jimin visited the recycling center near her apartment with her science class. She had expected the place to be dirty and unpleasant, but _______________. A worker named Mr. Park guided the students through each area, explaining how bottles, cans, and paper were sorted. He showed them a machine that crushed plastic bottles into small pieces before they were sent to factories. Jimin was surprised to learn that mixed trash, thrown into the wrong bin, often ruined an entire batch of recyclables. For example, one greasy pizza box could contaminate a whole pile of clean paper. However, when items were sorted correctly, they could be reused many times, almost like ingredients in a favorite recipe. Walking home, Jimin realized that her small effort at home truly mattered. She decided to sort her family's trash more carefully.

Anthropologist Robin Dunbar proposed a concept now known as Dunbar's number, suggesting that human beings can only maintain about one hundred fifty stable social relationships at any given time. This limit, he argued, comes from the size of the human brain, which restricts how many meaningful connections a person can cognitively manage. In contrast, many social media users today have hundreds or even thousands of online friends and followers, a number far exceeding what Dunbar's research predicts. However, having numerous digital contacts does not necessarily mean that all of these relationships are close or emotionally supportive. Most users, when asked, admit that they interact regularly with only a small fraction of their total followers, while the rest remain largely unnoticed. Therefore, Dunbar's number reminds us that ___________.

Parkinson's Law appears frequently in everyday workplaces, often without employees even realizing it. (A) As a result, the meeting naturally stretches to fill the entire hour, even though very little new information is actually discussed. (B) This situation illustrates the law's central claim that the amount of time allotted for a task directly shapes how long the task actually takes. (C) Consider a manager who schedules an hour-long meeting to discuss a minor issue that could realistically be resolved in only a few minutes.

Before you head to the gym for the dance performance, keep a few viewing tips in mind. (A) Also, save your applause until the very end of each act so performers are not interrupted. (B) First, check the printed schedule near the entrance to confirm the exact start time. (C) Next, choose a seat near the aisle if you think you might need to leave early.