영어 모의고사 (자동 편성)

Every day, email providers quietly block billions of ①unwanted messages before they ever reach a user's inbox, a task that would be impossible without an AI filtering system running constantly in the background. The filter ②examines each incoming message for suspicious patterns, including certain keywords, unusual sender addresses, and formatting tricks that scammers commonly rely on to slip past detection. What makes the system effective is that it ③stops learning after launch, since whenever a user marks a message as spam or rescues a message mistakenly filtered out, that action becomes new training data, sharpening the filter's future decisions. This creates a constant back-and-forth, since spammers study which messages get blocked and then ④adjust their wording to slip through again. As a result, spam filtering is less like a fixed wall and more like an ⑤ongoing contest, with each side continuously adapting to outsmart the other.

A rational approach to decision-making dictates that only future costs and benefits should influence a choice, since resources already spent cannot be ①recovered regardless of what is decided next. In practice, however, people routinely allow such irrecoverable expenditures, known as sunk costs, to shape their subsequent decisions, a pattern referred to as the sunk cost fallacy. A moviegoer who finds a film thoroughly ②disappointing after the first thirty minutes will often remain in the theater until the credits roll, reasoning that leaving early would somehow waste the money already spent on the ticket. Organizations exhibit the same fallacy on a larger scale: a company that has invested heavily in a failing project frequently ③abandons funding it, arguing that stopping the project now would render the prior investment meaningless. Yet continuing to invest in a venture destined to fail merely adds new losses to old ones, ④compounding the very waste the decision-makers hoped to avoid. Economists therefore urge decision-makers to evaluate each choice based solely on its prospective outcomes, treating past expenditures as ⑤irrelevant to the decision at hand.

Last month, our class began practicing for the school choir contest, but rehearsals quickly turned ①tense. Minji, who had the loudest voice, kept correcting other members in the middle of songs. Several students felt ②hurt and began skipping practice, saying it felt more like criticism than teamwork. Our music teacher noticed the empty seats and asked what was happening. Minji explained that she only wanted the group to sound perfect. However, Junho said her tone made people afraid to sing at all. After an ③awkward silence, Minji admitted she had never noticed how her words affected others. So the class tried something new: each member shared one compliment before rehearsal began. Slowly, the tension ④faded and attendance returned to normal. On the day of the contest, the choir sang together with real ⑤doubt and earned second place.

During the rainy season, umbrellas and raincoats become ①essential items for daily life. After using a wet umbrella, let it ②dry fully in a well-ventilated place before folding it again. Storing a damp umbrella in a closed bag can cause mold and a bad smell, so this habit is actually quite ③harmful. It is helpful to wipe off dirt and mud with a soft cloth, since dirt left on the fabric can ④protect the waterproof coating over time. Checking the umbrella's frame regularly for rust also helps it last ⑤longer.

Climate scientists frequently warn about tipping points, _______________. Unlike gradual warming, which unfolds steadily over decades, crossing a tipping point can produce dramatic consequences within a short period. For instance, as Arctic ice melts, it exposes darker ocean water that absorbs more sunlight than reflective ice, accelerating further melting in a self-reinforcing cycle. Similarly, scientists worry that a major ocean current, which currently redistributes heat across the planet, could slow dramatically if enough freshwater from melting glaciers dilutes the surrounding seawater. Once such thresholds are crossed, restoring the original balance may become nearly impossible, even if emissions are later reduced. Therefore, researchers argue that preventing these transitions matters more than merely slowing average temperature increases. Identifying how close each system stands to its threshold remains one of the most urgent challenges in climate research.

During the sports day relay race, Jun was nervous, and his hands were shaking as he waited for the baton. When his turn came, he grabbed the baton but nearly dropped it while turning the first corner. His teammates, watching from the field, shouted his name and encouraged him to keep running. Even though Jun felt embarrassed, their cheering gave him confidence to focus on the runner ahead of him. As he handed the baton smoothly to the next runner, he realized that the team's effort mattered more than his mistake. After the race, his teammates gathered around him and said that his recovery had kept the team in the competition. Jun understood then that _______________. His class did not win first place, but they celebrated together as if they had.

Not every default setting, however, produces beneficial outcomes for the people subject to it. (A) A default that automatically enrolls customers in a costly subscription renewal, for example, can generate continued revenue for a company precisely because inertia discourages customers from canceling, even when they would prefer to stop paying. (B) This example illustrates that the power of defaults is ethically neutral in itself, capable of serving either the interests of the individual or the interests of whoever designs the choice environment. (C) Regulators in several jurisdictions have responded by requiring companies to make cancellation just as simple as enrollment, reducing the asymmetry that defaults can otherwise exploit.

The Riverside Summer Festival returns this year with exciting programs for the whole community. (A) In the evening, visitors can enjoy live music performances and a spectacular fireworks show. (B) During the day, local farmers and small businesses will sell fresh fruits, snacks, and handmade crafts. (C) Since parking near the park is limited, visitors are encouraged to use public transportation.

Mental accounting also shapes how consumers respond to windfalls of different sizes and origins. (A) A modest windfall, such as a small cash-back reward, tends to be absorbed into everyday spending and disappears almost unnoticed within a household's general budget. (B) A substantial windfall, by contrast, such as an inheritance or a large bonus, is more likely to be mentally assigned to a separate category, sometimes labeled as "extra" money reserved for investment or a significant purchase. (C) This difference in treatment suggests that the perceived significance of a sum, rather than its objective purchasing power, determines the mental account into which it is placed.

Jiho's path into entrepreneurship began almost by accident, far from the corporate career his parents had imagined for him. (A) Despite warnings from relatives who considered the plan too risky, Jiho and his teammates decided to delay job applications and pursue the idea further. (B) A class project he joined during his final year gradually evolved into something more serious, as restaurants began placing regular orders through their prototype. (C) That decision eventually paid off, as the team secured a small investment after nearly failing twice.