영어 모의고사 (자동 편성)

Adaptive learning apps promise something no traditional classroom can easily offer: a lesson plan ①that adjusts itself to each individual student in real time. As a student answers practice questions, the app tracks which concepts are mastered and which remain shaky, then quietly ②reshuffles the next set of problems to target the weaker areas. Early studies suggest that this personalized pacing can help struggling students ③catch up faster than a one-size-fits-all worksheet ever could. However, critics caution that an app cannot replace the encouragement, humor, and flexibility a human teacher brings to a lesson, especially when a student ④frustrating rather than simply behind. There is also a subtler concern: students who grow used to instant, algorithm-generated feedback may struggle later with the slower, more ambiguous kind of feedback that real-world tasks and mentors typically ⑤provide.

It would be comforting to believe that anything sufficiently large or obvious appearing ①within our field of vision will automatically capture our attention, yet decades of research into inattentional blindness suggest otherwise. When people are absorbed ②in a demanding task, such as counting how many times a ball is passed between players, they frequently fail to notice an unexpected and conspicuous event unfolding in plain sight, even something as unlikely as a person in a costume walking through the scene. This failure does not stem from a defect in the eyes, which register ③the stimulus perfectly well, but from the fact that conscious perception depends heavily on where attention has been directed. Policymakers ought to take this finding more seriously than they currently do, because it implies that simply placing ④a warning sign within someone's visual range offers no guarantee that it will be consciously registered. Designing safer environments, therefore, requires account ⑤ for the limits of attention itself, not merely assuming that visibility alone ensures awareness.

Ambitious young athletes and the parents who support them sometimes ①assumes that more training automatically produces better results, a belief that occasionally leads to a condition known as overtraining syndrome. Unlike ordinary fatigue that resolves after a few days of rest, overtraining syndrome develops gradually over weeks or months of insufficient recovery relative to training load, eventually ②producing persistent exhaustion, declining performance despite continued hard work, and increased susceptibility to illness and injury. Adolescents may be especially vulnerable, since their bodies are simultaneously ③coping with the physical demands of growth and the added stress of intensive training schedules. Warning signs are often subtle at first, including disrupted sleep, irritability, and a loss of enthusiasm for a sport the athlete once genuinely enjoyed, which adults often ④mistake for ordinary moodiness. Recovery from full-blown overtraining syndrome can take months rather than days, which is why sports medicine specialists now emphasize ⑤monitoring early warning signs and scheduling rest before symptoms worsen.

Even highly capable individuals can make disastrous collective decisions once they ①absorbing into a tightly knit group, a phenomenon psychologist Irving Janis termed groupthink. Within cohesive committees, boards, and advisory councils, members often prioritize consensus and group harmony over a rigorous evaluation of alternatives, ②silencing doubts rather than risking the discomfort of dissent. Janis identified several warning signs, including an illusion of invulnerability that leads a group ③to underestimate risk, pressure on dissenters to fall in line, and self-appointed mindguards who shield the group from information that might disrupt its confidence. Sociologists extend this analysis beyond small committees, ④noting that entire organizations can develop cultures that reward conformity and punish employees who raise inconvenient questions. Historical inquiries into policy failures and corporate disasters frequently reveal that critical information existed within the organization but never ⑤reached decision makers.

Every July, our school library launches a summer reading challenge that invites students to read at least five books before classes begin again in September. Students who complete the challenge receive a ①small prize, but many say the real reward is something else entirely. Without daily homework and tests to worry about, summer gives students ②rare freedom to choose books purely because they sound interesting, not because a teacher assigned them. Librarians notice that students often pick more ③common genres during the challenge, including graphic novels, poetry, and nonfiction about hobbies they enjoy. This freedom seems to ④matter more than the prize itself, since students who only cared about winning tend to quit once the reading feels difficult, while curious readers keep going. Teachers who track student progress after summer report that challenge participants often return in September with noticeably ⑤stronger reading habits than classmates who read nothing over the break.

Two patients diagnosed with the same disease and prescribed the same medication can respond in ①strikingly different ways, one recovering quickly while the other experiences little benefit or even harmful side effects. Precision medicine starts from the observation that this variation often traces back to differences buried in each patient's genome, differences that determine how ②efficiently a body absorbs, breaks down, or responds to a given drug. By sequencing a patient's DNA before treatment begins, doctors can increasingly predict which medication is likely to work best and at what dose, replacing a strategy once described as one-size-fits-all with something closer to a ③tailored fit. This approach has proven especially valuable in cancer treatment, where tumors from two patients with the same diagnosis may carry entirely ④identical genetic mutations that respond to entirely different drugs. Widespread adoption still faces real obstacles, since genetic sequencing remains ⑤expensive in many regions and few doctors have been trained to interpret the flood of genetic data such tests now produce.

Psychologists have long wondered whether reading fiction can change how people treat others in real life. Several studies suggest that novels which describe a character's inner thoughts in detail can train readers to imagine what other people are feeling, a skill closely related to empathy. When readers follow a character through difficult choices, they practice stepping into someone else's perspective without any real risk to themselves. This kind of mental practice, researchers argue, can carry over into everyday situations, meaning that _______________. Not every book produces this effect equally, however, since stories focused only on fast action appear to build empathy far less than stories that slow down to explore emotion.

Bacteria have been cutting up invading viral DNA for billions of years, long before any scientist thought to borrow the trick for use in a laboratory. (A) Once Cas9 arrives at the target site, it slices both strands of the DNA helix, and the cell's own repair machinery rushes in to mend the cut, often introducing a small change in the process. (B) By supplying the cell with a template during this repair step, scientists can direct that machinery to insert a specific new sequence, and what once required years of painstaking work to alter a single gene can now be accomplished within days. (C) The CRISPR-Cas9 system, as it is now known, relies on a short guide RNA that matches a specific DNA sequence, leading a scissor-like enzyme called Cas9 directly to that exact location in the genome.

The lining, weakened in this way, no longer functions as the tight barrier it is meant to be. The human gut hosts trillions of microorganisms whose combined genetic material outnumbers that of the human genome itself many times over. ( ① ) Once dismissed as passive hitchhikers, these bacteria are now understood to actively shape digestion, regulate immune responses, and even influence the production of chemicals that affect mood and behavior. ( ② ) A microbiome disrupted by antibiotics, poor diet, or chronic stress can leave the gut lining more permeable than it should be. ( ③ ) This allows substances to leak into the bloodstream that would normally stay contained. ( ④ ) Researchers studying this connection have found that transplanting gut bacteria from a healthy donor into a patient can, in some cases, relieve symptoms of certain digestive disorders that conventional medication had failed to treat. ( ⑤ ) Still, scientists caution that the microbiome varies enormously between individuals, which means a treatment that restores balance in one person's gut may do little for someone else's.

Something has clearly gone wrong along the way, since no reasonable person would call one grain of sand a heap. Consider a large heap containing ten thousand grains of sand. ( ① ) Nearly everyone agrees that removing a single grain from such a heap leaves another heap behind; surely one grain could never make the difference between a heap and a non-heap. ( ② ) Yet if this principle is applied repeatedly, grain by grain, the heap eventually shrinks to a single lonely grain, or even to no grains at all. ( ③ ) Logic alone seems to force us to accept that this final result still counts as a heap. ( ④ ) Pinpointing exactly which single removal transformed a heap into a non-heap seems impossible. ( ⑤ ) The puzzle exposes a deep discomfort with vague terms like "heap," "tall," or "bald," concepts that seem to admit no sharp boundary yet are used confidently in everyday language.