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.

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.

People routinely seek out information that confirms what they already believe while ①overlooking or dismissing evidence that contradicts those beliefs, a pattern known as confirmation bias. This tendency operates not because individuals are deliberately dishonest, but because the mind finds it cognitively less ②taxing to absorb information that fits an existing framework than to reconstruct that framework from scratch. Investors who believe a particular company will succeed, for instance, tend to interpret ambiguous news about that company ③unfavorably, while investors who are skeptical of the same company interpret identical news unfavorably, even though both groups are examining the same underlying facts. Social media platforms can ④intensify this effect by algorithmically presenting users with content similar to what they have previously engaged with. Over time, such selective exposure can harden initial impressions into convictions that feel objectively verified, even though they rest on a systematically ⑤filtered sample of evidence.

For decades, most vaccines worked by injecting a ①weakened or inactivated version of a pathogen, coaxing the immune system into recognizing an enemy it had never truly fought. mRNA vaccines take a fundamentally ②different route, delivering only a short genetic instruction wrapped in a protective lipid capsule, one that tells the body's own cells how to manufacture a single harmless piece of a virus's outer surface protein. Once those cells display the fragment, the immune system learns to recognize it as ③foreign and builds a defense, without ever having encountered the actual pathogen. Because the vaccine contains no live virus and cannot alter a cell's own DNA, developers can ④redesign the genetic instructions within weeks whenever a pathogen mutates, rather than starting the years-long process required for traditional vaccines. This speed has convinced many researchers that the same platform could eventually be adapted to fight diseases far beyond infectious illness, ⑤excluding certain cancers.

The ancient puzzle known as the ship of Theseus asks a deceptively simple question. If every plank of a wooden ship is replaced one by one over many years, is the vessel that eventually results still the same ship it once was? Most people's first instinct is to answer yes, since each individual replacement seems too small to erase the ship's identity. The puzzle grows far sharper, however, once a second twist is introduced. Suppose a careful collector gathered every discarded plank and reassembled them into a second vessel, built exactly as the original once stood. Two ships would then exist side by side, each with an equal claim to being the genuine one, and no obvious way to decide between them. Philosophers return to this old story again and again, not because they care about timber, but because it forces us to ask whether identity depends on continuous material, continuous form, or _______________.

A liver no longer has to sit inside a human body to be studied closely. By coaxing stem cells to organize themselves within a nutrient-rich gel, scientists can now grow miniature three-dimensional structures called organoids, which reproduce much of the architecture and function of a real organ. Unlike flat cultures grown on a plastic dish, organoids let cells interact in three dimensions much as they would inside the body, yielding tissue that behaves in strikingly realistic ways. This fidelity has made organoids invaluable for testing how a drug affects human tissue before any patient is exposed, _______________. Some laboratories have even grown organoids from a single patient's own cells, raising the possibility of trialing a treatment on a miniature copy of that patient's organ before committing to an actual course of therapy.

Socialization is the lifelong process through which individuals absorb the norms, values, and roles that allow them to function within a society. Most of this process unfolds gradually and is barely noticed by the people experiencing it. Resocialization, by contrast, refers to a deliberate and often abrupt process in which an individual is stripped of a previous identity and trained to adopt a new set of norms, typically within what sociologist Erving Goffman called a total institution. These institutions frequently begin the process with what Goffman termed a mortification of self, removing personal possessions and erasing markers of prior status so that _______________. While resocialization can help individuals adapt to demanding new roles, critics note that total institutions can also produce lasting psychological strain.

Sensors buried in the soil now report moisture levels in real time, and automated systems adjust irrigation without a farmer ever walking the rows. For large operations with the capital to invest, these tools have measurably increased yields while reducing water waste. Smaller family farms, however, often cannot afford the upfront cost of this equipment, and some worry that _______________.

The eventual collapse of a speculative bubble often unfolds with surprising speed compared with the gradual climb that preceded it. (A) As prices begin to fall, investors who bought near the peak, motivated largely by fear of missing further gains, are often the first to sell, since they have the least conviction in the asset's underlying value. (B) Their selling triggers further price declines, which in turn prompt additional investors to sell out of a newly urgent fear of continued loss rather than a fear of missing out. (C) This reversal illustrates that the same herd psychology driving prices upward can just as easily reverse direction, converting collective optimism into collective panic within a remarkably short period.

This detachment, while sometimes criticized as cold or impersonal, also grants urban residents a distinctive freedom: because so few people know or judge them personally, city dwellers can experiment with identities and lifestyles that would invite intense scrutiny in a smaller, more tightly knit community. German sociologist Georg Simmel argued that the psychological experience of city life differs fundamentally from life in small towns, primarily because urban residents are bombarded with a much greater volume of stimuli than the human nervous system evolved to process. ( ① ) To cope with this constant sensory overload, Simmel proposed, city dwellers develop what he called a blasé attitude. ( ② ) This is a protective indifference in which individuals mentally blunt their emotional reaction to the surrounding crowd, treating most encounters with calculated detachment rather than genuine engagement. ( ③ ) Simmel therefore viewed anonymity as a double-edged feature of modern life. ( ④ ) It isolates individuals from deep communal bonds while simultaneously liberating them from the constant surveillance of small-town social life. ( ⑤ )