영어 모의고사 (자동 편성)

Science labs feel far safer than they actually are, largely because the equipment looks harmless and the experiments are carefully ①planned by a teacher. This false sense of security leads some students ②to skip small precautions, such as wearing safety goggles for a "simple" experiment or tasting a substance out of curiosity. Chemical reactions, however, do not distinguish between a professional laboratory and a classroom; a small amount of the wrong substance ③splashed into an eye can cause permanent damage within seconds, regardless of how basic the experiment seemed. Teachers repeatedly emphasize ④to read each instruction before touching any material, since even a familiar-looking chemical can behave unpredictably when combined with something new. Most laboratory accidents, researchers note, do not happen during advanced or unusual experiments but during routine ones that students ⑤have performed many times before.

For decades, productivity advice has focused almost entirely on managing time efficiently, yet many experts now argue this approach ①emphasizes something important. Unlike time, which flows at a ②constant rate, human energy naturally rises and falls in cycles shaped by sleep, food, and mental fatigue. A person who tackles difficult tasks during a low-energy period, for instance, may need two hours to finish what takes thirty minutes at ③peak energy. Similarly, someone who forces themselves to keep working without rest often produces careless mistakes that require additional time to ④correct later. Advocates of energy management recommend identifying one's peak hours and reserving them for demanding work, while saving low-energy periods for ⑤routine tasks.

Last year our art club received a set of digital drawing tablets, and I assumed switching from paper would feel like cheating, since a screen seemed to remove the physical struggle of real drawing. After a few weeks of practice, though, I noticed the tablet demanded a ①different kind of skill rather than an easier one. Because there is no paper texture to guide the pen, beginners often press too ②lightly or draw shaky lines until their hand adjusts to the smooth glass surface. What the tablet does offer is the freedom to undo a mistake instantly and experiment with colors without wasting a single sheet of paper, which encourages artists to take ③risks they might avoid with a permanent ink pen. Several club members who once avoided painting because they feared ruining their work now try ④bold new styles daily. The tool changed, but the patience and observation required to create something meaningful stayed exactly the ⑤same.

The human gut hosts trillions of microorganisms whose combined genetic material ①trails that of the human genome itself many times over. Once dismissed as ②passive 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. A microbiome disrupted by antibiotics, poor diet, or chronic stress can leave the gut lining more ③permeable than it should be, allowing substances to leak into the bloodstream that would normally stay contained. Researchers studying this connection have found that transplanting gut bacteria from a healthy donor into a patient can, in some cases, ④relieve symptoms of certain digestive disorders that conventional medication had failed to treat. Still, scientists caution that the microbiome varies enormously between individuals, which means a treatment that restores balance in one person's gut may do ⑤little for someone else's.

Every summer, lifeguards repeat the same warnings to swimmers, yet drowning remains one of the most common causes of accidental death among teenagers. Part of the problem is that danger in water rarely looks ①dramatic; a swimmer struggling to stay afloat often makes little noise and shows no obvious signs of panic, which means bystanders may not realize help is needed until it is too late. Rip currents present a particularly ②deceptive threat, since the water's surface can appear calm even while a powerful current pulls a swimmer steadily away from shore. Experts advise that anyone caught in such a current should swim parallel to the beach rather than struggling directly against it, since fighting the current head-on quickly ③strengthens even a strong swimmer. Simple habits, such as swimming near a lifeguard station and never entering the water alone, dramatically ④lower the risk of a minor mistake turning into a fatal ⑤one.

A shocking headline can spread across social media within minutes, long before anyone checks whether it is actually true. Studies show that false stories often travel ①slower than accurate ones, partly because surprising or emotional claims get shared more quickly than careful, balanced reporting. To handle this flood of information, students today need a skill that previous generations rarely had to practice: checking a source before believing it. Simple habits can make a ②real difference, such as looking for the original source of a claim, checking the date an article was published, and searching to see whether other trustworthy outlets are reporting the same story. Media literacy classes now teach students to ③pause before they share anything, asking who wrote it and why. This small pause, teachers say, is often the only thing standing between a curious reader and a piece of ④convincing misinformation, protecting not only the reader but everyone in their online ⑤network.

Central High School will host its annual career fair next Thursday in the main gymnasium. More than thirty companies and organizations will set up booths to introduce different careers. Each booth will offer a short activity so visitors can experience a small part of the job. In addition, three guest speakers will give short talks about their career paths during the lunch break. Teachers strongly encourage all students to attend, even those who already have a career in mind, because ___________. The fair will end at 3 p.m., and light refreshments will be provided for all visitors.

Volunteer work can sometimes reveal career interests students never expected to have. (A) This kind of quiet, patient care revealed a deep interest she never knew she had. (B) For example, a student volunteering at an animal shelter once spent an hour calming a frightened puppy. (C) She later began exploring careers in veterinary medicine because of that single experience.

Journalists now face the burden of verifying footage that once would have been accepted as self-evident proof. A few years ago, spotting a manipulated video required a trained eye and specialized software. ( ① ) Today, freely available applications allow almost anyone to swap a face or fabricate a voice convincingly enough to fool casual viewers within minutes. ( ② ) This shift has quietly undermined one of the oldest assumptions in human communication: that seeing and hearing something is a reasonably reliable way to confirm it happened. ( ③ ) Perhaps more troubling than any single fake video is the broader effect on public trust, sometimes called the liar's dividend, in which genuine footage can be dismissed as fabricated simply because deepfakes exist. ( ④ ) In this environment, the mere possibility of manipulation can be almost as damaging as manipulation itself. ( ⑤ )

That single moment made me forget my nervousness completely. Last spring, I joined a one-day job experience program at a local hospital. ( ① ) A kind nurse named Ms. Park showed me around the ward and explained her daily duties. ( ② ) At first, I was nervous about talking to real patients, but I helped an elderly patient find her room. ( ③ ) The busiest moment came when several patients needed attention at once, and the nurses worked together calmly. ( ④ ) I realized that teamwork matters as much as medical knowledge. ( ⑤ ) By the end of the day, my interest in nursing had grown even stronger.