영어 모의고사 (자동 편성)

The immune system produces an almost limitless variety of antibodies, each ①shaped to latch onto one particular molecular target with remarkable specificity. Monoclonal antibody drugs harness this natural precision by cloning a single antibody-producing cell in the laboratory, ②generating an army of identical antibodies built to recognize one target, such as a protein on a cancer cell or a molecule driving an autoimmune disease. Because the antibody binds only to its intended target, these drugs tend to spare healthy tissue far more effectively than traditional chemotherapy, ③which attacks any rapidly dividing cell regardless of whether it is cancerous. Manufacturing monoclonal antibodies remains far more complicated than producing a conventional small-molecule pill, since living cells must ④cultivating in carefully controlled bioreactors for weeks before the antibody can be purified and prepared for use. This complexity keeps monoclonal antibody treatments considerably more expensive than most conventional drugs, a cost that continues ⑤to shape debates over pricing and access.

Have you ever wondered why some people stay motivated while others give up quickly? The answer often lies in whether they have a clear goal. When people have no specific goal, they usually feel confused about where ①to start, and their interest fades within days. For example, a student who simply decides ②to study harder this year often loses direction because the plan is too vague. In contrast, a student who sets a clear goal, such as raising an English score by ten points, ③knows exactly what to do every day. This clarity creates strong motivation because the brain naturally ④focus on a clear target. A clear goal also makes progress easy to measure, and noticing small improvements keeps people ⑤encouraged to continue.

On a summer evening, downtown streets often feel ①noticeably hotter than nearby parks or suburban neighborhoods, even after the sun has set. This phenomenon, known as the urban heat island effect, occurs when cities ②retain more heat than surrounding rural areas because of their dense concentration of asphalt, concrete, and buildings. Unlike soil or vegetation, which absorb and release heat ③instantly, these man-made surfaces absorb sunlight during the day and slowly radiate it back at night, preventing temperatures from cooling. Tall buildings packed closely together also block wind, trapping warm air within narrow streets. In contrast, areas with ④abundant trees and open water naturally stay cooler, since plants release moisture that helps lower surrounding temperatures. To reduce this effect, many cities have begun installing rooftop gardens and ⑤expanding public parks, hoping that additional greenery will absorb less heat than pavement does.

Jihun made a resolution to study English for two hours every day, and for the first three days, he followed his plan ①poorly and felt proud of himself. On the fourth day, however, he skipped his study time because he was too ②exhausted, and within a week, his resolution had disappeared. Feeling ③disappointed, Jihun talked to his older sister, who suggested that he try a smaller, more ④realistic goal instead of a large one. This small goal felt much less overwhelming, so he ⑤managed to keep it every day for a month.

Sorting your trash correctly is _______________. When you separate paper, plastic, glass, and cans, recycling centers can process each material more efficiently. For example, plastic bottles should be rinsed and have their caps removed before being thrown away. Paper soaked with food or oil, however, cannot be recycled and must go into general waste. Sorting garbage is similar to organizing a closet, where each type of clothing has its own shelf. If items are mixed together carelessly, finding what you need later becomes difficult. Likewise, mixing recyclables with ordinary trash makes the whole recycling process complicated. Many students believe that sorting trash takes too much time, but it actually requires only a few extra seconds. Therefore, learning these basic rules now helps you build a habit that benefits your entire community.

Social psychologists describe a phenomenon called the bystander effect, in which individuals become less likely to help a victim as the number of witnesses increases. Each observer assumes someone else will step in, and this diffusion of responsibility leaves no one willing to act. Cyberbullying magnifies this problem, since a single humiliating post can be witnessed by thousands of people scattered across the internet rather than a few standing nearby. Anonymity intensifies the effect further, allowing silent observers to scroll past cruel comments without feeling accountable for their inaction. Some bystanders even worry that intervening publicly might make them the bully's next target, so they choose to remain silent instead. However, silence signals approval to both the bully and the audience watching the exchange unfold. Experts insist that even a single supportive comment can disrupt this harmful pattern. Therefore, witnesses online must _______________.

Habit researchers often note that people overestimate the role of motivation in daily routines. (A) As a result, they frequently give up soon after starting, blaming themselves for lacking discipline. (B) In contrast, Fogg's framework suggests that shrinking the task itself is more effective than boosting motivation. (C) Because motivation naturally rises and falls, relying on it alone often leads to inconsistent effort.

Beyond restoring lost function, engineers are now exploring implants and prosthetics designed to give healthy people abilities beyond ordinary human limits. (A) Critics counter that earlier enhancements were broadly available to anyone regardless of wealth, while cutting-edge implants are likely to remain expensive for decades, potentially splitting society along economic lines. (B) Supporters frame this as simply the next step in a long history of human enhancement, no different in principle from eyeglasses or vaccines. (C) What began as a medical tool for restoring what was lost, in other words, may end up redefining the baseline of what counts as an ordinary human being.

Minjun used to leave half of his lunch tray full of untouched rice and vegetables every day. (A) However, his teacher explained that leftover food thrown away every day adds up to a huge amount of waste. She compared uneaten food to money dropped carelessly on the street, which nobody bothers to pick up. (B) Last spring, his class started a campaign called "Clean Plate Day" to reduce food waste, but at first, Minjun thought it sounded boring and unnecessary for someone like him. (C) This comparison surprised Minjun because he had never thought about food that way before. He decided to take only what he could finish and to try new vegetables slowly. Within a few weeks, his tray was almost always empty, and he felt proud of the change. Other students noticed his effort and began doing the same thing.

This combination cools rooms more efficiently while using less power than an air conditioner alone. The city government has launched a summer energy-saving campaign to reduce electricity use during the hottest months. ( ① ) To prevent blackouts, residents are asked to set air conditioners no lower than twenty-six degrees Celsius. ( ② ) Turning off lights and unplugging unused electronics can also make a noticeable difference. ( ③ ) The campaign encourages people to use fans together with air conditioners. ( ④ ) Families who reduce their electricity use by more than ten percent compared to last summer will receive a discount on their next bill. ( ⑤ ) Community centers will hold information sessions to teach simple energy-saving tips.