영어 모의고사 (자동 편성)

When people evaluate their personal contribution to water scarcity, they often consider only the water that flows directly from household taps, overlooking a far larger quantity ①consumed indirectly through the goods they purchase. The water footprint, a concept that extends this narrow view, measures the total volume of freshwater used to produce the goods and services an individual or a nation consumes. Central to this concept is the notion of virtual water, the water ②embedded invisibly within a product, from irrigating cotton fields to livestock ③raised for meat. For instance, producing a kilogram of beef can require several thousand liters of water, whereas a kilogram of vegetables typically demands a fraction of that amount. Nations that import water-intensive goods rather than ④producing them domestically are importing virtual water from regions that may face severe shortages. Critics caution, however, that focusing exclusively on aggregate volume can mislead policymakers, since a liter of water drawn from a region suffering drought ⑤carry far greater consequences than one drawn from a water-abundant area.

In a classic experiment inspired by Keynes's beauty contest analogy, participants choose a number between zero and one hundred, and the winner is whoever selects the number closest to two-thirds of the average of all guesses ①submitted. A perfectly rational player, ②assuming every other participant reasons with unlimited depth, would conclude the equilibrium number is zero, since reasoning about others' reasoning collapses the average toward that single point. In practice, however, actual guesses rarely converge on zero; most participants stop reasoning after a round or two of imagining what others might guess, ③producing average guesses that cluster between twenty and thirty-five. This gap between theoretical equilibrium and observed behavior reveals that human reasoning is bounded, ④capable of anticipating a few steps ahead but rarely capable of iterating the process indefinitely. Economists use this game as a diagnostic tool, since the number a person submits ⑤reveal how many levels of strategic thinking that person is willing to perform.

In the late nineteenth century, the psychologist Hermann Ebbinghaus undertook a rigorous investigation of forgetting ①by serve as his own experimental subject. He memorized thousands of meaningless three-letter syllables ②so that prior knowledge could not skew his results. After learning each list to perfection, he tested his retention at intervals ③ranging from twenty minutes to a month later. He recorded how many repetitions were required to relearn the material each time. The resulting curve revealed a consistent pattern. Forgetting proceeds rapidly during the initial hours following learning, then gradually ④decelerates until the rate of loss becomes almost imperceptible. Roughly half of the acquired information vanished within the first hour alone. Yet whatever survived that initial plunge tended to persist for much longer periods. Ebbinghaus further found that ⑤distributing study sessions across several days produced better retention than cramming the same repetition into one sitting.

Many students imagine a librarian simply sitting behind a desk and stamping books. Ms. Han, who has worked at a school library for over ten years, says that image is far from accurate. A large part of her job involves choosing which new books to buy, based on both student requests and current trends in youth literature. She also spends hours training students to search databases and judge whether an online source is trustworthy, a skill she considers just as important as reading itself. According to Ms. Han, the most rewarding moment is not organizing shelves but _______________. She admits that budgets are often tight and that new technology keeps changing how libraries operate.

For my birthday, my older sister took me to a small pottery studio where visitors can shape their own bowl or cup on a spinning wheel. (A) My first attempt collapsed into a shapeless lump within seconds, because I had not realized how much steady, centered pressure the clay actually requires before it can be shaped at all. (B) After nearly a dozen failed attempts, I finally produced a lopsided but recognizable cup, and the small imperfection along its rim somehow made me prouder of it than a perfectly smooth, machine-made mug ever could have. (C) I expected the wheel to do most of the difficult work automatically, since it was already spinning quickly by the time I sat down.

On the first day of the club fair, the gym was filled with noise and color. Every table had a banner, and members called out to new first-graders like me. (A) She showed me a sketchbook filled with simple drawings by first-year members. Her gentle voice made me feel relaxed for the first time that day. Without much thought, I wrote my name on the sign-up sheet before leaving. Walking out of the gym, I finally felt that I belonged in this new school. (B) My friend Somin dragged me toward the robotics club, insisting it would suit me. However, the long list of coding projects looked too complicated for a beginner. (C) Just then, I noticed a quiet table where students were sketching posters together. A calm senior named Jian explained that the art club welcomed complete beginners.

It was, I realized, a lesson about storytelling disguised as a lesson about furniture. My grandmother keeps a wooden cabinet filled with tiny furniture, each piece no larger than a fingernail, that she has been building for over a decade as a miniature hobby. ( ① ) When I first saw the cabinet, I assumed the appeal was simply how impressively small and precise the pieces looked. ( ② ) Talking with her while she worked, though, I learned that the real challenge lies in imagining an entire, believable world at a scale the eye can barely process, deciding where a miniature family might set down a teacup or leave a chair pulled slightly away from the table. ( ③ ) She once spent three weekends carving a single tiny bookshelf, only to leave two of its shelves deliberately empty, ( ④ ) explaining that a completely full room would look staged rather than lived-in. ( ⑤ ) That small decision taught me that miniature craft is not primarily about precision, but about convincingly imagining an ordinary life small enough to fit inside a shoebox.

Researchers sometimes call this ability perspective-taking, and it does not stay confined to the pages of a book. Psychologists have long wondered whether reading fiction can change how people treat others in real life. ( ① ) 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. ( ② ) When readers follow a character through difficult choices, they practice stepping into someone else's perspective without any real risk to themselves. ( ③ ) This kind of mental practice, researchers argue, can carry over into everyday situations, making readers more likely to notice a classmate's hidden sadness or understand a stranger's unusual behavior. ( ④ ) Not every book produces this effect equally. Stories that stay focused only on fast action, with little attention to characters' inner lives, appear to build empathy far less than stories that slow down to explore emotion. ( ⑤ ) For this reason, some psychologists now recommend that young readers balance fast-paced adventure novels with quieter stories about ordinary people and their feelings.

The cell then acts as a temporary factory, translating that instruction into an actual protein without ever altering the cell's permanent genetic code. For decades, most vaccines worked by injecting a weakened or inactivated version of a pathogen, coaxing the immune system into recognizing an enemy it had never truly fought. ( ① ) mRNA vaccines take a fundamentally different route, delivering only a short genetic instruction wrapped in a protective lipid capsule, one that tells the body's own cells how to manufacture a single harmless piece of a virus's outer surface protein. ( ② ) Once those cells display the fragment, the immune system learns to recognize it as foreign and builds a defense, without ever having encountered the actual pathogen. ( ③ ) Because the vaccine contains no live virus and cannot alter a cell's own DNA, developers can redesign the genetic instructions within weeks whenever a pathogen mutates. ( ④ ) This is far shorter than the years-long process required for traditional vaccines. ( ⑤ ) This speed, first proven on a global scale during a recent pandemic, has convinced many researchers that the same platform could eventually be adapted to fight diseases far beyond infectious illness, including certain cancers.

This sudden and violent stop is precisely what causes so many of the most severe injuries in a crash. Seatbelts are so woven into the experience of riding in a car that many passengers buckle them without thinking, yet a surprising number of teenagers still skip them for short trips, assuming that a five-minute drive to a friend's house does not carry much risk. ( ① ) Traffic safety data tell a different story: most fatal crashes occur within a few kilometers of home, on roads drivers know so well that they let their guard down. ( ② ) In a collision, a body traveling at a moderate speed continues moving forward at that same speed until something stops it, and without a seatbelt, that something is often the windshield or the dashboard rather than a slower deceleration. ( ③ ) A seatbelt spreads the force of a sudden stop across the stronger parts of the body, such as the hips and chest, instead of concentrating it on the head and neck. ( ④ ) Despite decades of public awareness campaigns, seatbelt use for backseat passengers remains lower than for those sitting in the front. ( ⑤ )