영어 모의고사 (자동 편성)

Long before cognitive scientists possessed the tools to observe the brain directly, Donald Broadbent proposed an influential model suggesting that the human capacity to process incoming sensory information ①constrained by a structural bottleneck through which only a single stream of input can pass at any given instant. According to this filter theory, multiple channels of stimulation, such as competing voices in a crowded room, ②are initially registered at a shallow, physical level, but only one channel is selected for further, meaning-based analysis while the rest are blocked from advancing beyond that early filter. Although later researchers challenged the rigidity of this early selection mechanism, ③pointing to instances in which unattended information, such as one's own name, nevertheless ④breaks through and captures awareness, the core insight that attention imposes a genuine processing limit rather than a mere matter of willpower has remained remarkably durable. This basic bottleneck principle ⑤continues to inform contemporary explanations of why multitasking so reliably degrades performance on demanding tasks.

Extended producer responsibility, a policy requiring manufacturers to bear responsibility for their products even after use, has been adopted by governments seeking to ①increase landfill waste. Under such schemes, companies must ②finance the collection and recycling of goods once consumers discard them, rather than leaving municipalities to absorb the cost. Advocates maintain that shifting this burden onto producers creates a powerful incentive to design products that are more ③durable, easily disassembled, and readily recyclable from the outset. Critics counter that the policy, whatever its theoretical merits, often fails to reduce waste meaningfully unless paired with ④rigorous enforcement and transparent reporting requirements. For instance, some manufacturers merely pass the added cost of compliance on to consumers, without making substantive changes to how products are designed. In contrast, jurisdictions that combine producer responsibility with strict eco-design standards and independent audits tend to witness ⑤genuine improvements in recyclability.

As solar and wind power expand ①rapidly across national grids, engineers face a challenge that receives far less public attention than the construction of the generating facilities themselves. Unlike conventional power plants, which can adjust their output to match demand at almost any moment, solar panels and wind turbines generate electricity only when sunlight or wind is available, producing supply that fluctuates ②rarely. One proposed solution involves large-scale battery storage systems, which absorb ③surplus electricity generated during periods of high output and release it later when generation declines. Another approach relies on expanding transmission networks across wider regions, so that electricity generated in a sunny area can be redirected to places experiencing a ④shortfall. Without such investment, integrating renewable energy could ⑤paradoxically undermine the very reliability that modern electricity grids are expected to provide.

Desalination, the process of removing dissolved salts from seawater to produce fresh water, has increasingly been adopted by coastal regions facing chronic water scarcity. 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. Nevertheless, _______________. 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. 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.

When a resource is shared among many users, none of whom bears the full cost of its depletion, _______________. This dynamic, famously labeled the tragedy of the commons, describes how shared pastures and fisheries can be degraded even when every participant privately understands the danger of overuse. A single herder who adds one more animal to a communal pasture gains the entire benefit of that addition, whereas the resulting damage to the grass is shared among other herders who depend on the land. Because self-interest offers no incentive to restrain consumption unilaterally, the resource tends to be exhausted long before any user intends such an outcome. For decades, economists assumed that only two remedies existed: strict regulation or the conversion of shared resources into private property. Elinor Ostrom challenged this assumption, however, by documenting communities that had sustainably managed fisheries and forests for generations through locally devised rules and mutual monitoring rather than external control.

For most of the twentieth century, a library was simply a quiet room full of books, and visitors were expected to stay silent while they searched the shelves. Today, many public libraries look completely different. _______________. Librarians say this change did not happen by accident. As more information moved online, fewer people needed a library simply to find facts, so librarians began asking what their communities actually needed instead.

Biodegradable plastics have been promoted as a promising solution to plastic waste, since they are designed to decompose into natural substances rather than persist for centuries. (A) For example, a bag labeled biodegradable may take years, not the weeks advertised, to break down in a landfill or ocean, where temperature and microbial activity remain low. In addition, when mixed with conventional plastics in recycling streams, they can contaminate the process, weakening the quality of materials produced afterward. (B) Some engineers therefore compare biodegradable plastics to a bridge that leads nowhere unless paired with infrastructure that completes the journey. Ultimately, realizing their genuine potential requires not only technological refinement but also facilities capable of providing the precise conditions decomposition demands. (C) Manufacturers derive these materials from renewable resources such as corn starch, blending them with additives that accelerate microbial breakdown once discarded. However, their environmental benefits are often exaggerated, largely because decomposition depends on specific conditions rarely found outside industrial composting facilities.

Researchers have found that athletes who follow a consistent routine tend to show more stable performance under pressure than those who approach each attempt differently. Elite athletes rarely walk up to a free throw line or a golf ball without first performing a highly specific sequence of movements, a habit sports psychologists call a pre-performance routine. ( ① ) Far from being mere superstition, this consistent sequence, whether it involves bouncing a basketball a fixed number of times or taking a particular number of practice swings, serves a genuine cognitive purpose. ( ② ) Repeating the same physical and mental steps before every attempt narrows an athlete's focus away from distracting thoughts about outcome or crowd noise and toward the specific technical cues needed to execute the skill correctly. ( ③ ) The routine essentially functions as a trigger, cuing the body to shift automatically into a familiar, well-rehearsed state. ( ④ ) For this reason, coaches now actively teach young athletes to develop and rehearse individualized routines rather than treating them as personal quirks. ( ⑤ )

주어진 문장: A well-designed multimedia lesson, for instance, presents narration and matching diagrams simultaneously rather than forcing students to consult them separately. Cognitive load theory begins from the premise that working memory, the mental workspace in which incoming information is temporarily held and manipulated, can accommodate only a limited number of novel elements at any given moment, in stark contrast to the comparatively vast capacity of long-term memory. ( ① ) When instructional materials introduce more interacting elements than this narrow workspace can simultaneously process, learners experience what theorists call cognitive overload, a condition under which comprehension deteriorates and errors multiply regardless of how motivated the learner might be. ( ② ) Because much of this burden arises not from the intrinsic difficulty of the subject matter itself but from the manner in which information is presented, instructional designers can substantially reduce unnecessary strain by eliminating redundant explanations, aligning visual and verbal elements so that learners need not mentally integrate scattered sources, and gradually withdrawing guidance as competence develops. ( ③ ) Ignoring these principles, by contrast, ( ④ ) risks overwhelming novices with demands that exceed their processing capacity, however well-organized the underlying content may be. ( ⑤ )

주어진 문장: Such assessments are grounded in the principle that potential harm should be identified before a project begins, rather than addressed only after damage has already occurred. Before a large-scale construction project such as a highway or dam receives government approval, planners in many countries are required to conduct an environmental impact assessment, a formal process designed to predict and evaluate the ecological consequences of a proposed development. ① This process begins with a baseline survey, in which specialists document existing conditions, including wildlife, water quality, and air composition, so that future changes can be measured against a reference point. ② Analysts then model how the project might alter these conditions, drawing on data from comparable developments. ③ For instance, a proposed highway that would bisect a forest might be evaluated for its potential to fragment habitats, disrupting migration routes on which certain species depend. ④ If the assessment identifies unacceptable risks, planners may be required to redesign the project or adopt mitigation measures such as wildlife corridors. ⑤ Critics contend, however, that assessments are sometimes treated as a bureaucratic formality rather than a genuine constraint, since developers who commission the studies retain strong influence over how the findings are interpreted. ① ② ③ ④ ⑤