영어 모의고사 (자동 편성)

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

Aerobic exercise, such as jogging, swimming, or cycling at a steady pace, strengthens the heart by forcing it to pump ① larger volumes of blood with each beat. Over weeks of consistent training, the heart gradually enlarges and becomes more efficient, meaning it can deliver the same amount of oxygen to working muscles while beating ② fewer times per minute. This adaptation explains why trained athletes often have a much ③ lower resting heart rate than sedentary individuals of the same age. Beyond the heart itself, aerobic activity encourages the body to build new capillaries within muscle tissue, ④ worsening the delivery of oxygen and nutrients at a cellular level. Researchers have also found that regular aerobic exercise ⑤ reduces inflammation throughout the body and improves the way cells respond to insulin.

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.

Choice architecture refers to how decisions are designed. It determines which option is automatically selected unless a person chooses otherwise, known as the default option. Research consistently shows that ___________, even when changing it takes only seconds. Organ donation is a well-known example. Countries where citizens are automatically registered as donors unless they opt out show much higher donation rates than opt-in countries. Retirement savings programs show a similar pattern, since employees automatically enrolled in a pension plan rarely cancel it. Voluntary sign-ups, in contrast, often delay indefinitely. Critics argue that default options can be manipulated to benefit companies rather than individuals, so transparency about how defaults are chosen becomes essential. Still, supporters insist that because some default must always exist, it should support people's own long-term interests rather than mere institutional convenience.

Ego depletion theory has sparked considerable debate among psychologists studying self-control. (A) One well-known experiment asked participants to resist eating fresh cookies while a bowl of radishes sat nearby, and these participants later gave up more quickly on a difficult puzzle. (B) The theory originally proposed that resisting temptation consumes a limited mental resource, leaving less energy available for subsequent tasks. (C) Researchers interpreted this result as evidence that resisting the cookies had drained the mental resource needed to persist on the puzzle.

Not all environmental changes happen at the same steady pace. (A) A well-known example involves melting Arctic ice, which exposes darker ocean water that absorbs more sunlight and speeds up further melting in a self-reinforcing cycle. (B) Once this kind of threshold is crossed, reversing the damage becomes extremely difficult, which is why scientists consider identifying these points an urgent priority. (C) Some changes accumulate slowly and predictably, while others can suddenly accelerate once a critical threshold, known as a tipping point, is crossed.

A documentary director named Mira set out on her first trip to a remote Arctic glacier, eager to film its towering cliffs of blue ice. (A) Comparing the two sets of footage side by side, she realized that a transformation she had expected to take centuries was actually happening within a single decade, which convinced her that climate change was an urgent process reshaping landscapes before her eyes. (B) Five years later, however, she returned to the very same coordinates, only to discover that the glacier had retreated so dramatically that the ice cliffs had nearly disappeared, leaving bare rock and meltwater behind. (C) Standing before the massive wall of ice on that first trip, she assumed that such an enormous structure could hardly change within a lifetime.

주어진 문장: Vague intentions, by contrast, give the brain no clear signal about when effort should begin or end. Setting a goal such as 'I will study harder' rarely leads to meaningful improvement. ( ① ) According to psychologists Edwin Locke and Gary Latham, specific and challenging goals produce far better performance than vague or easy ones. ( ② ) This idea, known as goal-setting theory, suggests that clear targets direct attention and sustain effort over time. ( ③ ) To apply this theory effectively, many educators recommend the SMART framework, which requires goals to be Specific, Measurable, Achievable, Relevant, and Time-bound. ( ④ ) 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 track and evaluate. Challenging goals also tend to increase motivation, since people often work harder when a target feels meaningfully difficult rather than trivially simple. ( ⑤ )

In other words, what looks like a lack of discipline may actually be a biological mismatch. Across many countries, high schools begin classes early in the morning, often before eight o'clock. ( ① ) This schedule assumes that teenagers can simply go to bed earlier to compensate, but biology tells a different story. ( ② ) During adolescence, the body's internal clock shifts later, delaying the release of melatonin until well after ten at night. ( ③ ) As a result, most teenagers are not physiologically ready to fall asleep until much later than younger children or adults are, and when early start times force them to wake before their bodies have completed a full sleep cycle, the mismatch accumulates into a chronic sleep debt that affects concentration and mood throughout the school day. ( ④ ) Researchers who study this mismatch argue that the underlying problem is not laziness or poor discipline among students, but a scheduling system built around adult rhythms rather than adolescent ones. ( ⑤ ) Some school districts that delayed their start times by thirty minutes reported improvements in attendance.

This kind of quiet anticipation is precisely what makes the technology feel almost invisible in daily life. A smart thermostat that learns a family's daily rhythm can lower the temperature automatically before everyone wakes up cold, while smart lights that follow a resident's schedule no longer need to be switched on and off by hand. ( ① ) These small conveniences rest on a shared foundation: sensors collect data about temperature, motion, and light throughout the home, and an algorithm gradually learns which settings match each household's actual habits rather than a factory default. ( ② ) Over months of use, the system becomes noticeably better at anticipating needs, often adjusting settings moments before a resident would have reached for a switch. ( ③ ) Yet convenience comes with a trade-off that many households overlook. ( ④ ) Every one of these small adjustments depends on constant data collection, meaning that a detailed record of when people wake, leave, and return home is quietly being stored somewhere beyond their immediate control. ( ⑤ )