영어 모의고사 (자동 편성)

For decades, most vaccines worked by ①injecting a weakened or inactivated version of a pathogen, coaxing the immune system into recognizing an enemy it had never truly fought. mRNA vaccines take a fundamentally different route, ②delivering 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. Once those cells display the fragment, the immune system learns to recognize it as foreign and ③builds a defense, without ever having encountered the actual pathogen. 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 ④mutating, rather than starting the years-long process required for traditional vaccines. This speed, first proven on a global scale during a recent pandemic, has convinced many researchers that the same platform could eventually ⑤be adapted to fight diseases far beyond infectious illness, including certain cancers.

Many households save far less for retirement than conventional financial advice would recommend, not necessarily because they lack the resources to do so, but because a combination of procrastination, present bias, and the discomfort of forgoing current consumption repeatedly ①delays the decision to begin saving. Recognizing this gap between intention and action, some economists have proposed a savings program in which employees commit today to allocating a portion of their future salary increases toward retirement savings, rather than being asked to ②increase their current take-home pay immediately. Because the sacrifice applies only to income not yet received, the commitment feels far less ③painful than an equivalent reduction in present earnings would, making employees considerably more willing to enroll. Once enrolled, the contribution rate automatically rises with each subsequent raise, gradually ④increasing savings without requiring any further deliberate action from participants. Field trials of such programs have reported substantial increases in average savings rates over several years, alongside participant satisfaction that remains notably ⑤high.

The framing effect describes how people respond differently to the same information depending on how it is presented, even when the underlying facts remain unchanged. When news outlets describe climate change primarily as a looming ①crisis, filled with images of disasters and warnings of irreversible damage, audiences often react with ②confidence or, paradoxically, with hopeless resignation. In contrast, when the same issue is framed as an ③opportunity, emphasizing innovative technologies and emerging green jobs, readers tend to feel more ④motivated to act and support policy change. Neither framing alone tells the complete story, since climate change genuinely involves both serious risks and promising solutions. Therefore, journalists who rely too heavily on either extreme risk distorting public understanding and discouraging meaningful engagement. A ⑤balanced approach, which honestly presents dangers while highlighting realistic paths forward, is far more likely to sustain long-term public attention and inspire lasting action.

Every plastic product carries a small recycling mark, but few students know what these marks mean. Each symbol _______________. For instance, the number one usually stands for clear plastic bottles, while the number five represents thicker containers like yogurt cups. Reading these marks is similar to reading nutrition labels on snacks, which tell you exactly what is inside. Without checking the label, you might buy something unhealthy by mistake. Likewise, throwing plastic away without checking its mark can send a reusable item straight to a landfill. Some marks even show that a material cannot be recycled at all, so it must be sorted separately. Therefore, taking a few seconds to check the mark before throwing something away makes recycling far more effective for everyone involved.

Last spring, Minji joined a new club at her school called the Green Runners. Every Saturday morning, the members jog around the neighborhood park while picking up trash. This activity, called plogging, combines jogging with cleaning up litter from the streets. At first, Minji felt embarrassed to pick up garbage in front of other people. However, _______________. For example, the group collected more than twenty bags of trash during their first month together. Picking up litter while running is like turning an ordinary workout into a meaningful mission. Minji's legs grew tired, but her heart felt proud after every session. Now, she encourages her friends, who used to tease her, to join the club as well. Minji believes that small habits, practiced together, can change a whole community.

Retailers use a variety of techniques designed to encourage customers to make unplanned purchases. Placing small, inexpensive items near checkout counters, for example, tempts shoppers who are already waiting in line with little else to do. Online stores achieve a similar effect through countdown timers that create a false sense of urgency, suggesting that a deal will vanish within minutes. Bright colors, cheerful music, and pleasant scents are also carefully chosen to put customers in a relaxed mood, making them less likely to think critically about their spending. Critics argue that these tactics ___________. Supporters of the industry insist that such techniques merely make shopping more enjoyable and are not inherently deceptive.

Good morning, residents of Green Apartment! We would like to introduce a simple way to protect our environment. Used batteries, which contain harmful chemicals, should never be thrown away with regular trash. If these chemicals leak into the soil, they can pollute water and harm plants. Therefore, _______________. Please place your old batteries inside this box instead of the trash can. The box, which is emptied every month, is easy for anyone to use. For example, small button batteries from watches and toys can also be dropped in the box. However, batteries that are still working should not be thrown away at all. We appreciate your effort to keep our neighborhood clean and safe. Thank you for your cooperation and kindness.

Riding a bicycle during summer vacation is fun, but a few safety habits are essential. (A) It is also important to wear bright or reflective clothing so that drivers can see you clearly. (B) Before you ride, always check that your tires are properly inflated and your brakes work well. (C) Finally, choose bike paths or quiet streets whenever possible, rather than busy roads with heavy traffic.

Every day, we leave behind marks of the gases that warm our planet, much like footprints left in wet sand. These marks, often called our carbon footprint, come from small choices such as driving, eating, and using electricity. (A) For example, turning off lights when leaving a room reduces the energy that power plants must produce. Walking or biking to school instead of riding in a car also lowers the amount of gas released into the air. (B) In contrast, leaving devices plugged in all night quietly increases our footprint without our notice. Therefore, students who practice these simple habits regularly can shrink their footprint significantly. Small daily choices, repeated over time, become powerful tools for protecting the environment we all share. (C) Many students think that only large factories create these marks, but ordinary habits at home also matter greatly.

This small difference in preparation determines whether an item can be reused or simply thrown away as waste. Sorting your trash correctly is one of the simplest habits that protect our environment. ① When you separate paper, plastic, glass, and cans, recycling centers can process each material more efficiently. ② 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. ③ 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. ④ 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. ⑤ Therefore, learning these basic rules now helps you build a habit that benefits your entire community.