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.

When choosing a future career, students often face a common question: should I follow what I love, or what I am good at? Passion can provide strong ①motivation, pushing a person to practice for hours without feeling tired. However, loving an activity does not always mean a person will become ②unskilled at it professionally. On the other hand, natural talent can lead to quick success, but without genuine interest, that success may eventually feel ③empty or exhausting. Career experts suggest looking for an ④overlap between the two instead of choosing only one side. Finding this balance takes time and self-reflection, but it often leads to a more ⑤satisfying and sustainable career.

The discovery of CRISPR gene-editing technology gave scientists a tool ①precise enough to correct a single mistaken letter in the human genome, raising hope for curing inherited diseases that have resisted treatment for generations. Yet the same precision that makes CRISPR so promising also makes it ②dangerous in the wrong hands. 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, a decision no single person should be allowed to make ③alone. Scientific organizations around the world have therefore drawn a careful line, ⑤permitting gene editing to treat disease in existing patients while ④permitting any edit that would be inherited by their descendants. Critics worry, however, that as the technology becomes cheaper and more widely available, this line will become harder to enforce than it is to draw.

Riding a bicycle is one of the most ①popular ways for teenagers to get around, yet many students still skip the one piece of equipment that could save their life: the helmet. Some argue that a short trip to a nearby store does not require any special protection, since the risk of a serious accident feels ②distant and unlikely. However, most bicycle accidents happen close to home, on familiar streets where riders feel too comfortable to expect danger. A sudden pothole, a car door opening without warning, or a patch of gravel can throw even an experienced cyclist off balance in an ③instant. Wearing a helmet does not prevent a fall, but it dramatically ④increases the chance of a serious head injury when one occurs. For this reason, safety experts insist that a helmet should be treated not as an optional accessory, but as a ⑤basic requirement every time wheels touch the pavement.

Every spring, the art club at Sejong High School creates one large mural together instead of individual paintings. The process begins with a session where members suggest themes and vote on their favorite idea. Once a theme is chosen, the club divides into small teams, each responsible for one section of the wall. One team sketches the outline while another mixes colors to match the design. Communication becomes essential at this stage, since each section must connect smoothly with the ones beside it. If one team paints too dark a shade, the whole picture can look unbalanced. Therefore, members regularly step back to compare their section with the rest of the mural. After several weekends, the teams combine their sections into a single image. The finished mural is displayed near the entrance, reminding everyone _______________________.

Turning off lights when you leave a room seems like a tiny action, but _______________. Every light left on in an empty room wastes electricity that could have powered something useful elsewhere. For example, a single classroom light left on overnight can waste enough energy to charge dozens of phones. This habit is similar to leaving a faucet running while you brush your teeth, where water flows out for no reason. Both actions seem harmless in the moment, but they add up to a serious waste over time. Some students argue that a single light does not make much difference. However, when an entire school forms this habit together, the total amount of saved energy becomes significant. Therefore, this small daily habit can create a surprisingly large positive effect for the whole planet.

Before making a purchase, most online shoppers now read reviews written by previous customers rather than relying solely on advertisements. These reviews, posted by people who have no financial connection to the seller, often seem more trustworthy than promotional claims. Research shows that products with a large number of positive reviews sell significantly more than those with few or no reviews at all. However, fake reviews written by paid writers or even automated programs have become a serious problem, undermining consumer trust. Platforms that fail to detect these fraudulent posts risk losing credibility with their users, who expect authentic opinions when making decisions. To address this issue, several review platforms have begun using artificial intelligence to identify suspicious patterns. Ultimately, the power of online reviews ___________.

Anyone who has tried to name the ink color of a word like red printed in blue letters knows how surprisingly difficult the task can feel. This everyday struggle, known as the Stroop effect, deserves more attention than casual curiosity grants it, because it reveals something fundamental about how the mind allocates its limited resources. (A) Educators should not dismiss this delay as a trivial curiosity confined to laboratories, since the same competition between habit and intention underlies far more consequential situations, such as a driver's struggle to resist checking a phone despite knowing the danger. Recognizing how automatic responses can hijack conscious intentions is essential for designing environments, from classrooms to highways, that support rather than undermine our efforts at self-control. (B) When these two processes point toward conflicting answers, the automatic pathway tends to intrude upon the controlled one, slowing responses and increasing errors. (C) Reading a familiar word is an automatic process practiced so extensively since childhood that it proceeds almost involuntarily, whereas naming a color requires deliberate, controlled attention.

Jihun's new year resolution to study English two hours a day did not go as planned. (A) He studied exactly as planned for the first three days, but on the fourth day, he skipped his study time because he felt too exhausted. (B) Following her advice, Jihun changed his plan to studying English for only twenty minutes each night, and this small change made a big difference. (C) After his resolution completely disappeared within a week, Jihun talked to his older sister, who suggested trying a smaller, more realistic goal.

주어진 문장: Relieved, he watched his teammates continue the race with newfound energy. During the sports day relay race, Jun was nervous, and his hands were shaking as he waited for the baton. ① When his turn came, he grabbed the baton but nearly dropped it while turning the first corner. ② His teammates, watching from the field, shouted his name and encouraged him to keep running. Even though Jun felt embarrassed, their cheering gave him confidence to focus on the runner ahead of him. ③ As he handed the baton smoothly to the next runner, he realized that the team's effort mattered more than his mistake. ④ After the race, his teammates gathered around him and said that his recovery had kept the team in the competition. ⑤ Jun understood then that teamwork means supporting each other even after something goes wrong. His class did not win first place, but they celebrated together as if they had.