영어 모의고사 (자동 편성)

Memory researchers have long recognized that learning is not simply a matter of accumulating ① information without cost. Newly acquired material can collide with what the mind already holds, produce ② measurable disruptions in recall. When earlier knowledge interferes ③ with the retrieval of information learned afterward, psychologists call this proactive interference. This phenomenon explains why someone who memorized an old phone number for years may struggle to recall a new one. Conversely, when material learned later undermines the recollection of something acquired earlier, the process is labeled ④ retroactive interference. This second mechanism explains why switching to a new keyboard layout can temporarily impair typing on a familiar one. Both processes suggest that memories compete for the same limited retrieval pathways rather than resting in isolated compartments. This insight carries real implications for how students approach studying multiple similar subjects. Instead of cramming closely related material back to back, spacing out review sessions can reduce ⑤ competition between overlapping traces. Varying study contexts further helps preserve accuracy for both old and new information alike.

Working memory refers to the mental workspace in which information ①is temporarily held and manipulated while a person performs a cognitive task. Such tasks include solving an arithmetic problem, following a rapid conversation, or holding a phone number in mind before dialing it. In the mid-twentieth century, the psychologist George Miller proposed that this workspace could accommodate roughly seven discrete items. His claim proved so influential that it ②become widely known as the magic number seven. Subsequent research, however, revealed that Miller's estimate was somewhat generous, since it failed to account for the complexity of the material ③being remembered. Nelson Cowan later argued that when rehearsal strategies ④are prevented and attention is tightly controlled, genuine capacity hovers closer to four items rather than seven. This discrepancy suggests that what earlier studies had measured was not raw storage capacity itself but a hybrid quantity ⑤inflated by clever strategies. Contemporary psychologists therefore distinguish between the fixed limit of working memory and the flexible techniques that allow individuals to transcend that limit.

As more schools shift toward digital textbooks and online assignments, a student without reliable internet access at home faces a disadvantage that has little to do with talent or effort. During recent years, this gap became impossible to ignore, as families in rural areas or low-income neighborhoods ①struggled to complete schoolwork that assumed a stable connection and a personal device. Some policymakers initially treated internet access as a convenience, comparable to cable television, rather than as infrastructure ②essential to modern life. That assumption is increasingly ③reconsidering, particularly as more essential services, from job applications to medical appointments, move online by default. Closing this divide will require more than simply distributing devices; it will demand sustained investment in the physical networks ④that carry information into every home, ⑤regardless of income or location.

Behavioral economists have long observed that people tend to feel the pain of losing something more intensely than the pleasure of gaining an equivalent amount, a tendency ①known as loss aversion. This asymmetry, which ②was first documented through a series of carefully designed experiments, suggests that the psychological weight of a loss can be roughly twice that of a comparable gain. Consider an investor who refuses to sell a declining stock, ③clings to the hope that its price will eventually recover, even when all available evidence indicates that selling and reinvesting elsewhere would be more rational. Such behavior, though it ④appears irrational from a purely economic standpoint, becomes understandable once we recognize that the investor is trying to avoid the sharp discomfort associated with realizing a loss. Similarly, consumers often demand a much higher price to give up an item they already own than they would be ⑤willing to pay to acquire the same item in the first place.

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 an ①unlimited number of novel elements at any given moment, in stark contrast to the comparatively vast capacity of long-term memory. When instructional materials introduce more interacting elements than this narrow workspace can simultaneously process, learners experience what theorists call cognitive ②overload, a condition under which comprehension deteriorates and errors multiply regardless of how motivated the learner might be. 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 ③reduce unnecessary strain by eliminating redundant explanations, aligning visual and verbal elements so that learners need not mentally integrate scattered sources, and gradually ④withdrawing guidance as competence develops. Ignoring these principles, by contrast, risks ⑤overwhelming novices with demands that exceed their processing capacity, however well-organized the underlying content may be.

Identical information can provoke strikingly different reactions depending on how it is worded, a phenomenon economists call the framing effect. Patients told that a surgical procedure carries a ninety percent survival rate tend to ①consent to it far more readily than patients told that the same procedure carries a ten percent mortality rate. This discrepancy arises because language does more than transmit facts; it also supplies an ②emotional lens through which those facts are interpreted. Positive framing, which emphasizes what will be ③preserved or gained, tends to encourage risk-averse choices, whereas negative framing, which emphasizes what might be lost, often pushes people toward ④safer alternatives in an attempt to avoid the loss altogether. Marketers, healthcare providers, and policymakers alike ⑤exploit this asymmetry, sometimes to help audiences make sounder decisions and sometimes merely to steer them toward a predetermined conclusion.

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.

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.

Bacteria have been cutting up invading viral DNA for billions of years, long before any scientist thought to borrow the trick for use in a laboratory. (A) Once Cas9 arrives at the target site, it slices both strands of the DNA helix, and the cell's own repair machinery rushes in to mend the cut, often introducing a small change in the process. (B) By supplying the cell with a template during this repair step, scientists can direct that machinery to insert a specific new sequence, and what once required years of painstaking work to alter a single gene can now be accomplished within days. (C) The CRISPR-Cas9 system, as it is now known, relies on a short guide RNA that matches a specific DNA sequence, leading a scissor-like enzyme called Cas9 directly to that exact location in the genome.

Slips of paper covered with unfamiliar Chinese characters are passed in through a slot in the door, and he answers them by consulting his rulebook line by line. Imagine a man locked inside a room who does not understand a single word of Chinese, yet who possesses a giant rulebook written entirely in English. ( ① ) By matching each incoming symbol to an appropriate outgoing symbol, he produces replies that appear fluent to anyone outside. ( ② ) From the perspective of a native speaker reading the responses, the room seems to understand Chinese perfectly. ( ③ ) Yet the man inside understands nothing at all; he is merely manipulating shapes according to formal rules, without grasping their meaning. ( ④ ) This scenario was designed to challenge the assumption that a computer running a sophisticated program truly understands language simply because it produces convincing output. ( ⑤ ) Passing every external test of intelligence, the argument suggests, is not the same as possessing genuine understanding, since syntax alone can never generate semantics.