영어 모의고사 (자동 편성)

Bacteria have been cutting up invading viral DNA for billions of years, long before any scientist ①thought to borrow the trick for use in a laboratory. The CRISPR-Cas9 system, as it is now known, relies on a short guide RNA that matches a specific DNA sequence, ②lead a scissor-like enzyme called Cas9 directly to that exact location in the genome. Once Cas9 arrives at the target site, it slices both strands of the DNA helix, and the cell's own repair machinery rushes in ③to mend the cut, often introducing a small change in the process. By supplying the cell with a template during this repair step, scientists can direct that machinery ④to insert a specific new sequence rather than merely disabling the original gene. What once required years of painstaking work to alter a single gene can now, with a properly designed guide RNA, ⑤be accomplished within days, a shift in speed that has reshaped nearly every corner of biological research.

Economists have long debated whether prosperity and environmental quality are fundamentally opposed, or whether the relationship between them ①changes shape as an economy matures. The Environmental Kuznets Curve, a hypothesis ②borrowed from earlier theories of income inequality, proposes that pollution initially rises alongside economic growth before eventually declining once a society crosses a certain threshold of wealth. In its early stages, industrializing nations prioritize output over conservation, ③treats clean air and water as expendable costs of development to be addressed later. Beyond a certain point, however, rising incomes generate both the technological capacity and the political will ④to demand stricter regulation, so degradation begins to reverse even as production keeps expanding. Some scholars regard this trajectory as a reassuring paradox, suggesting that the very growth ⑤blamed for ecological harm may eventually finance its own repair. Critics, by contrast, argue that the curve rests on a narrow selection of pollutants that happen to decline with wealth, while ignoring greenhouse gases and resource depletion, which show no comparable tendency to fall.

Sensors buried in the soil now report moisture levels in real time, drones survey entire fields for signs of disease within minutes, and automated systems adjust irrigation without a farmer ever walking the rows. For large operations with the capital to invest, these tools have ①measurably increased yields while ②reducing water waste, addressing two problems that traditional farming has struggled with for generations. Smaller family farms, however, often ③cannot afford the upfront cost of this equipment, and some worry that the gap between high-tech and traditional operations will only widen as the technology advances further. There is also a quieter cultural cost that rarely appears in productivity reports: generations of farming knowledge risk being ④preserved by dashboards and automated alerts that few young farmers are taught to question, a loss productivity reports rarely ⑤capture.

Few ideas in policy debate provoke as much philosophical unease as the notion that a government might ①deliberately steer citizens toward better choices while leaving every option technically available. Defenders insist that freedom is ②preserved as long as no option is banned and no penalty is attached, arguing that a citizen who is merely steered, rather than coerced, remains free to choose otherwise. Critics counter that this defense rests on an ③impoverished notion of liberty, one that ignores how engineered defaults and calculated framing can shape decisions just as powerfully as an outright prohibition would. If a policy is designed because officials expect it to bypass conscious deliberation, these critics ask, can the resulting choice still be called ④autonomous, even though no law was broken? The dispute ultimately turns on what freedom actually requires: the mere absence of coercion, or a decision-making process that remains ⑤opaque and undistorted.

When people estimate the value of an unfamiliar product, they rarely rely on objective calculation alone; instead, they anchor their judgment to whatever numerical reference happens to be presented first, however arbitrary that number may be. A shopper who first sees a jacket listed at $300 before it is marked down to $150 will likely judge the discounted price as an excellent bargain. Such evidence indicates that rational deliberation alone cannot fully explain how value is perceived, since the ___________ ultimately shapes what buyers are willing to pay.

The immune system produces an almost limitless variety of antibodies, each shaped to latch onto one particular molecular target with remarkable specificity. Monoclonal antibody drugs harness this natural precision by cloning a single antibody-producing cell in the laboratory, generating an army of identical antibodies built to recognize one target, such as a protein on a cancer cell or a molecule driving an autoimmune disease. _______________. Manufacturing monoclonal antibodies remains far more complicated than producing a conventional small-molecule pill, since living cells must be cultivated in carefully controlled bioreactors for weeks before the antibody can be purified and prepared for use. This complexity keeps monoclonal antibody treatments considerably more expensive than most conventional drugs, a cost that continues to shape debates over pricing and access.

As private companies develop the technology to mine asteroids for rare metals and water, a legal question once confined to science fiction has suddenly become urgent: who, if anyone, owns the resources of outer space? (A) Some governments have already passed domestic laws granting their own companies rights to material mined in space, a move other nations view as a unilateral attempt to settle a shared question. (B) Existing international treaties state that no nation may claim sovereignty over celestial bodies, but they say remarkably little about whether a private company may extract and sell what it finds there. (C) Supporters of space mining argue that new resources could ease shortages on Earth, while critics warn that treating space as an open frontier for extraction risks repeating past mistakes.

As buildings account for a substantial share of global energy consumption, architects have increasingly turned to a design philosophy known as the passive house standard, which minimizes energy demand through the building's own structure rather than through mechanical systems. (A) Consequently, many architects regard passive house design not as a luxury for wealthy homeowners but as a practical model capable of reshaping mainstream construction. (B) Central to this approach is airtight construction, in which continuous insulation and sealed joints prevent conditioned air from leaking outward, thereby reducing the heating and cooling loads conventional buildings require. Triple-glazed windows, oriented to capture sunlight in winter while shading interiors in summer, further stabilize indoor temperatures without relying heavily on furnaces or air conditioners. (C) Ventilation systems equipped with heat exchangers also recover warmth from outgoing air, transferring it to incoming air so that comfort is maintained without excessive energy use. For example, some passive houses built in cold climates have reduced heating costs by more than ninety percent.

Scarcity cues of this kind are becoming increasingly common across online retail platforms, appearing on everything from hotel bookings to concert tickets. A shopper browsing an online store notices that a particular item is marked as "only three left in stock." ( ① ) Before seeing this notice, the shopper had regarded the item with only mild interest, uncertain whether it was worth purchasing at all. ( ② ) After seeing the notice, however, the same shopper suddenly feels a pressing urge to complete the purchase before the remaining stock disappears, even though nothing about the item itself has changed. ( ③ ) This shift in urgency illustrates how scarcity cues can transform hesitation into immediate action within moments. ( ④ ) Retailers are well aware of this dynamic, which is why such notices frequently appear even when actual stock levels are difficult for customers to verify independently. ( ⑤ ) Whether the stated scarcity is genuine or exaggerated, its psychological effect on the shopper's behavior remains remarkably similar.

주어진 문장: This shows that expertise alone does not guarantee immunity from such intuitive shortcuts. Suppose you meet a quiet, gentle man who speaks softly, tends a small garden, and organizes his bookshelf with meticulous care. ( ① ) Asked whether he is more likely a florist or a truck driver, most people instinctively choose florist, since his personality matches the stereotype so neatly. ( ② ) This judgment, however, ignores a crucial fact: truck drivers vastly outnumber florists in almost every country, which means that, statistically, he is far more likely to belong to the larger group regardless of how well he fits the flower-shop image. ( ③ ) Relying on resemblance to a familiar category rather than on underlying numerical proportions, known among researchers as representativeness, leads people to overlook these base rates almost automatically. ( ④ ) Even trained professionals, who should know better, often fall into the same trap when a vivid description feels more convincing than plain statistics. ( ⑤ ) Consequently, teaching people to pause and ask how common something actually is, instead of merely how typical it appears, can meaningfully improve the accuracy of everyday predictions and reduce costly errors in judgment.