영어 모의고사 (자동 편성)

Change blindness refers to a striking limitation of human perception in which observers fail to notice substantial alterations to a visual scene, provided the change occurs ① during a brief disruption such as an eye movement or a momentary obstruction. In a now-famous demonstration, researchers showed ② participants two versions of a photograph in alternation, separated by a short blank screen, and asked them to identify what had changed. Even when an entire building disappeared or a person's clothing shifted color, many viewers stared at the picture without detecting ③ anything unusual. This phenomenon occurs because visual attention, rather than passively recording every detail like a camera, actively selects only a narrow subset of information for processing at any given moment. Whatever falls outside that narrow spotlight represents ④ only sparsely, if at all, leaving it vulnerable to being overwritten without notice. Consequently, change blindness demonstrates that our impression of a rich, complete visual world is, to a surprising extent, an illusion constructed ⑤ by the mind, not a faithful record of external reality.

Psychologists studying human judgment often describe the mind as operating through two distinct systems rather than a single unified process. System 1 works ①quickly and automatically, generating impressions and snap judgments without any noticeable sense of effort. System 2, by contrast, is slow, ②deliberate, and demanding, engaged only when a problem requires careful calculation or conscious reasoning. Most daily decisions are handled almost entirely by System 1, which allows people to function ③efficiently without exhausting their limited mental resources. This efficiency comes at a cost, however, because System 1 relies on simple shortcuts that can produce systematic errors, and System 2 is frequently too ④diligent or too occupied to double-check them. As a result, a judgment often feels most confident precisely at the moment when it has skipped the careful scrutiny that could have caught its own mistake, leaving the thinker ⑤unaware of how easily the impression was formed.

Students are frequently told that where they study makes little difference, provided that they put in enough hours. Cognitive research on memory retrieval, however, suggests that this advice ①clarifies an important process. According to the encoding specificity principle, information becomes intertwined with the context in which it was originally learned. Cues present during encoding therefore ②facilitate retrieval far more effectively than cues encountered elsewhere. A striking demonstration involved divers who memorized word lists either underwater or on dry land. When tested later, divers recalled substantially more words if the testing environment ③matched the original learning environment. This held true regardless of which environment that happened to be. This finding implies that reviewing material exclusively in a quiet bedroom may not ④adequately prepare a student for the noisy atmosphere of an actual examination hall. Rather than assuming that memorization is a context-free process, students ought to consider ⑤deliberately varying study locations and conditions.

When consumers compare two products and assume that the one labeled "eco-friendly" is automatically the more sustainable choice, they often overlook the complexity involved in verifying such a claim. Life cycle assessment, commonly abbreviated as LCA, _______________. This method examines raw material extraction, manufacturing, transportation, use, and disposal, compiling data on energy consumption and emissions generated at each stage. By tracing a product from its origin to its disposal, this approach reveals impacts that might otherwise remain hidden from consumers who see only the finished item on a shelf. For example, an electric vehicle may produce no emissions while being driven, yet the mining of metals for its battery can generate substantial environmental costs elsewhere. Without accounting for these earlier stages, a superficial comparison could mistakenly present the vehicle as entirely emission-free. Therefore, researchers increasingly rely on life cycle assessment to make informed decisions rather than trusting labels alone.

Desalination, the process of removing dissolved salts from seawater to produce fresh water, has increasingly been adopted by coastal regions facing chronic water scarcity. (A) Pumping seawater through membranes at high pressure also demands substantial electricity, so plants powered by fossil fuels can worsen the emissions that intensify drought. Therefore, engineers increasingly argue that desalination should be treated not as a stand-alone remedy but as one component of a broader conservation strategy. (B) Nevertheless, desalination remains an inherently costly and environmentally burdensome solution, a fact often overlooked amid enthusiasm for ending water shortages. For instance, the process generates a concentrated byproduct called brine, which, when discharged without adequate dilution, can raise local salinity to levels that harm marine life. (C) Most modern facilities rely on reverse osmosis, a technique in which seawater is forced through membranes whose microscopic pores block salt while letting water molecules pass. Because this method consumes far less energy than the thermal distillation once dominant in the industry, it has become the preferred choice for large-scale plants.

Insomnia is rarely caused by a single factor; it usually emerges from an interaction between psychological stress and physiological arousal that keeps the body from settling into sleep. (A) At the same time, the body's stress response system can become chronically activated, releasing hormones such as cortisol that keep heart rate and body temperature elevated at night, both of which interfere with the natural drop in arousal needed to fall asleep. (B) Poor sleep habits, including irregular bedtimes and excessive screen use before bed, can further weaken the body's internal signals for sleep onset. Because these psychological and physiological factors reinforce one another, effective treatment for chronic insomnia addresses both the racing mind and the underlying pattern of physical tension, rather than relying on medication alone. (C) A common trigger is what researchers call cognitive hyperarousal, in which the mind continues to race with worries about work, relationships, or even the inability to sleep itself, creating a frustrating cycle where anxiety about insomnia becomes a cause of insomnia.

Speed-reading courses promise a simple result: read several times faster while understanding just as much as before. (A) In careful studies, speed-reading graduates often score no better on comprehension tests than ordinary readers who read at a normal pace, and for difficult material, there may be no real shortcut around attentive reading. (B) The techniques usually involve moving your eyes quickly down the page, skipping small words, and avoiding the habit of silently pronouncing each word, and some students do learn to move their eyes faster after a short course. (C) However, researchers who study reading have found a serious problem with these claims, since understanding a text depends on how deeply your brain processes each sentence, not simply on how quickly your eyes move.

Riding a bicycle is one of the most popular ways for teenagers to get around, yet many students still skip the one piece of equipment that could save their life: the helmet. (A) Wearing a helmet does not prevent a fall, but it dramatically reduces the chance of a serious head injury when one occurs. (B) A sudden pothole, a car door opening without warning, or a patch of gravel can throw even an experienced cyclist off balance in an instant. (C) Some argue that a short trip to a nearby store does not require any special protection, since the risk feels distant and unlikely, but most accidents actually happen close to home, on familiar streets where riders feel too comfortable to expect danger.

Simply naming these warning signs, however, does not guarantee that a child will know how to react in the moment. Teaching children to be cautious around strangers used to rely mainly on a single blunt warning: never talk to people you do not know. ( ① ) Child safety experts now argue that this advice is too simple to be useful, since most children will inevitably need to interact with unfamiliar adults, whether asking a store employee for help or greeting a new neighbor. ( ② ) A more effective approach focuses on specific situations rather than people in general, teaching children to recognize behavior that feels wrong, such as an adult asking a child to keep a secret from parents or offering a reason to get into a car alone. ( ③ ) Role-playing these scenarios in advance helps children respond quickly under pressure, rather than freezing because the situation feels unfamiliar and confusing. ( ④ ) Experts also emphasize that children should be taught they will never get in trouble for refusing an adult's request or for loudly saying no in public. ( ⑤ ) This is because hesitation caused by politeness can cost precious seconds in a genuine emergency.

This eagerness to get moving is understandable, but it can come at a real physical cost. Physical education class often feels like the one period of the day when students can finally move freely, which sometimes leads them to skip the warm-up routine that teachers insist on before any real activity begins. ( ① ) Cold muscles, however, are noticeably less flexible than warmed ones, and stretching a stiff hamstring or ankle too quickly can cause a strain that keeps a student off the field for weeks rather than minutes. ( ② ) Coaches often compare an unwarmed muscle to a cold rubber band that snaps rather than stretches under sudden pressure. ( ③ ) Beyond warming up, wearing proper footwear matters more than most students realize; running in worn-out sneakers with little grip left on the sole significantly raises the chance of a twisted ankle on a gym floor or an outdoor field. ( ④ ) Reporting a minor pain immediately, rather than pushing through it to finish a game, also prevents a small issue from becoming a repeated injury that lingers for an entire season. ( ⑤ )