영어 모의고사 (자동 편성)

Even a modest level of dehydration, as little as two percent of body weight ① lost through sweat, can measurably reduce an athlete's endurance and cognitive sharpness during competition. As fluid levels drop, blood volume decreases, ② forcing the heart to work harder to deliver the same amount of oxygen to working muscles, which accelerates fatigue. Dehydration also impairs the body's ability ③ to regulate its own temperature, since sweating is the primary mechanism for releasing excess heat during intense exercise. Athletes competing in hot, humid conditions face a particularly difficult balance, because sweating heavily to stay cool simultaneously ④ depletes the very fluids needed to sustain performance. For this reason, sports scientists generally recommend a hydration strategy ⑤ tailoring to an individual athlete's sweat rate and the specific conditions of the event.

Factories that once employed hundreds of workers on an assembly line now run with a fraction of that staff, as robotic arms handle tasks ① that used to require human hands. Economists have long debated whether this shift destroys jobs or simply ② transforms them. Historical evidence offers some comfort: previous waves of automation eventually created new categories of work that no one ③ had predicted. However, critics point out that earlier transitions unfolded over generations, ④ given workers time to retrain, whereas today's robots are being deployed at a pace that leaves little room for adjustment. For this reason, many economists argue that the real challenge is not the robots themselves, but the speed at which society ⑤ is expected to adapt to them.

Summer vacation is a great time ①go camping with family or friends. First, pack enough water and snacks, since staying hydrated and energized ②is essential in hot weather. Second, bring sunscreen and insect repellent ③to protect your skin from sunburn and bug bites. In addition, check the weather forecast before you leave, and choose a campsite ④that is safe from flooding. Make sure your tent is set up on flat, dry ground away from trees ⑤that could fall in strong wind.

For much of the twentieth century, memory researchers assumed that once a memory ①had been consolidated—transformed from a fragile, short-term trace into a stable, long-term representation—it remained essentially fixed, immune to further modification unless the underlying neural circuitry was physically damaged. This assumption, however, was overturned by a body of research demonstrating that the act of retrieval itself ②can destabilizing a previously consolidated memory, ③rendering it temporarily susceptible to alteration before it is, in a sense, filed away again. During this narrow window, ④which typically lasts only a few hours, the memory can be strengthened, weakened, or even subtly distorted by new information encountered in the interim, after which it must undergo a second round of stabilization, a process now widely referred to as reconsolidation. Consequently, what we experience as a stable recollection may actually be a continuously revised construction, reshaped every time it ⑤is summoned into conscious awareness and returned to storage.

When a price is crossed out and replaced with a lower number, consumers instinctively perceive the new price as a ①loss, even if the original price was rarely charged. Limited-time sales further ②intensify this effect, since a ticking clock encourages rushed decisions that leave little room for careful comparison. Retailers also use phrases such as "while supplies last" to suggest ③scarcity, even when inventory remains plentiful. Over time, frequent sales can actually train customers to wait for discounts rather than buy at full price, which can ④hurt long-term profits. Despite this risk, many companies continue relying on sales events because the short-term boost in customer traffic usually ⑤outweighs the potential downside.

Our school's volunteer club, Helping Hands, tries to make small acts of kindness feel ①natural. Each month, students visit a nearby nursing home and spend an afternoon talking with elderly residents. For example, they read newspapers aloud or just listen to old stories from the residents. In addition, members ②collect used books and toys from classmates and donate them to a community center downtown. Some students feel ③confident before their first visit, unsure of what to say to strangers. However, most discover that a ④warm smile works better than perfect words. Therefore, the club's real goal is not just finishing hours for a report card. Instead, it teaches members that caring for others grows into a ⑤lasting habit, like watering a plant daily. By the end of the year, many students say the club changed how they see their community.

Many large companies now rely on artificial intelligence to screen job applications before a human ever sees them. These systems promise efficiency, scanning thousands of resumes in seconds and ranking candidates according to patterns drawn from previous hiring decisions. However, this reliance on historical data creates a troubling risk. If a company's past hiring favored a particular group, the algorithm may learn to treat that pattern as a marker of success and quietly reproduce it, even when no one intended discrimination. Unlike a human interviewer, the system offers no explanation for its choices, which means that _______________. Some researchers argue that fairness cannot be added afterward; it must be built into the system's design from the very beginning.

The discovery of CRISPR gene-editing technology gave scientists a tool precise enough to correct a single mistaken letter in the human genome. Yet editing a gene in a sperm, egg, or early embryo does not simply change one patient; it alters the genetic code passed down to every future generation. Scientific organizations around the world have therefore drawn a careful line, permitting gene editing to treat disease in existing patients while banning any edit that would be inherited by their descendants. Critics worry, however, that _______________.

For many years, comic books and graphic novels were seen as a lazy alternative to real reading. (A) Recent research, however, tells a more complicated story, since graphic novels actually require readers to combine written text with visual clues. (B) Parents and teachers often worried that pictures did the work that words should do, leaving young readers with weaker vocabulary and imagination. (C) Rather than replacing traditional reading, graphic novels appear to work best as a bridge that leads students toward it.

Admission is free, but some food and activities require a small fee. The Riverside Summer Festival will take place from August 1st to August 3rd at Riverside Park. ( ① ) This annual event offers a variety of programs for visitors of all ages. ( ② ) During the day, local farmers and small businesses will sell fresh fruits, snacks, and handmade crafts at outdoor booths. ( ③ ) In the evening, live music performances and a fireworks show will light up the night sky. ( ④ ) Children can enjoy water games and face painting near the fountain area. ( ⑤ ) Visitors are encouraged to bring their own water bottles and use public transportation, since parking near the park is limited.