Tüm alıştırma soruları

In the mid-twentieth century, the modern conservation movement was revolutionized by the introduction of the wilderness concept. Proponents of this philosophy argued that certain natural areas should be set aside and completely protected from human development. This marked a significant departure from earlier conservation efforts, which had focused primarily on the sustainable extraction of resources like timber and minerals. The U.S. Congress formalized this new approach by passing the Wilderness Act of 1964, which legally defined wilderness as "an area where the earth and its community of life are untrammeled by man." Some early drafts of the legislation were composed on manual typewriters in crowded congressional offices. Today, this landmark act protects over one hundred million acres of public land, ensuring that these ecosystems remain undisturbed for future generations.

The writer is considering deleting the sentence "Some early drafts of the legislation were composed on manual typewriters in crowded congressional offices" from the paragraph. Should this sentence be deleted?

During the late nineteenth century, the invention of the kinetoscope revolutionized the entertainment industry, public parlors opened across the country, allowing patrons to view short, moving pictures through a peephole viewer.

Which of the following is the best replacement for the underlined portion of the sentence?

Identify the punctuation mark that must be placed in the blank to grammatically join the two independent clauses in the sentence below.

Passage Excerpt:

In the late nineteenth century, audio was captured on fragile, spinning wax cylinders. Over time, these cylinders have degraded, making them too delicate to be played by a physical stylus without destroying the recordings. To retrieve these sounds, scientists developed IRENE, a system that uses digital imaging. [Underlined: A camera captures high-resolution images of the grooves to create a 3D digital model, avoiding any physical contact.] This visual map is then translated by computer software back into audio, allowing archivists to preserve lost voices.

Question:

The writer wants to choose an option that most clearly explains the specific mechanism of the IRENE system while emphasizing how it protects the fragile cylinders from damage. Which choice best accomplishes this goal?

In 1857, French inventor Édouard-Léon Scott de Martinville patented the phonautograph, the earliest known device for recording sound. Unlike Thomas Edison's phonograph, which could both record and play back audio, Scott's invention was designed only to write sound waves onto soot-coated paper. Scott believed that these visual transcriptions, which he called "phonautograms," could eventually be read by eye. Consequently, because he never intended for his recordings to be heard, they remained silent, unplayed artifacts for over a century.

In 2008, scientists at the Lawrence Berkeley National Laboratory utilized digital scanning technology to examine Scott's surviving papers. By mapping the soot patterns and translating them into digital audio files, they successfully recovered the voice of a woman singing the French folk song "Au Clair de la Lune." [1]

The writer wants to add a sentence at [1] to conclude the passage by emphasizing the historic significance of Scott's invention. Which choice most effectively accomplishes this goal?

Termites are master builders, constructing towering mounds that can reach up to thirty feet in height on the African savanna. Despite the scorching daytime heat, the temperature inside these mounds remains remarkably stable. This thermal regulation is achieved through a complex network of vents and tunnels that facilitate passive ventilation. Warm air rises and escapes through a central chimney, while cooler air is drawn in at the base.

Which of the following sentences, if added at the end of the paragraph, would provide the most effective conclusion to the paragraph?

The following passage is an excerpt from an essay about Egyptology.

For centuries, the hieroglyphic inscriptions on Egyptian monuments remained an impenetrable mystery to scholars. In 1799, French soldiers discovered a dark granodiorite slab near the port city of Rashid. This artifact, later named the Rosetta Stone, contained the same decree written in three different scripts. The decipherment of the stone was not immediate, however, scholars struggled for decades to decode the glyphs because they did not understand that the symbols represented both sounds and concepts.

Which of the following is the best alternative for the underlined portion?

In 1977, oceanographers exploring the Galápagos Rift made a discovery that fundamentally altered our understanding of biology. Using the deep-diving submersible Alvin, scientists observed hydrothermal vents—geothermal geysers on the seafloor spewing superheated, mineral-rich water. To their astonishment, these dark, high-pressure environments were teeming with complex life, including giant tube worms and ghost-white crabs.

[1]

Previously, scientists believed that all food chains on Earth ultimately relied on sunlight for energy through photosynthesis. However, these vent communities thrived in complete darkness. Instead of using sunlight, specialized bacteria in the vents utilized hydrogen sulfide—a toxic chemical to most land animals—to produce organic molecules. This process, known as chemosynthesis, proved that life could flourish under conditions once thought completely uninhabitable.

Which choice provides the most effective transition from the preceding paragraph to the paragraph that follows?

The following paragraphs are from an essay about Alexander Fleming's discovery of penicillin. Arrange the paragraphs in the most logical order to create a cohesive transition flow.

During the nineteenth century, the printing industry underwent rapid technological growth, demanding faster methods for producing newspapers and books. To speed up the typesetting process, workers cast commonly used phrases or words into single metal plates rather than composing them letter by letter. These cast plates were named after the clicking sound made during their creation: clichés. The term eventually transitioned from a technical printing word to a metaphor for overused expressions.

Which choice most effectively concludes the paragraph by reinforcing the relationship between the origin of the term 'cliché' and its current definition?

In 1912, German meteorologist Alfred Wegener proposed the theory of continental drift, suggesting that all landmasses were once joined. Wegener argued that the continents fit together like pieces of a jigsaw puzzle. The evidence, that he compiled, from fossil distributions and rock formations, supported his claims, but his contemporaries remained unconvinced.

Choose the option that represents the correct punctuation for the underlined portion.

The sentences below are from a draft of an essay about Mesoamerican architecture. To ensure that the paragraph logically builds its claim that the pyramid produces a bird-like sound and explains how this effect is achieved, in what order should the sentences be placed?

Located on the northeast coast of Northern Ireland, the Giant's Causeway is an area of about 40,000 interlocking basalt columns. The site , which was formed by an ancient volcanic fissure eruption, attracts thousands of tourists and geologists each year. Visitors marvel at the near-perfect hexagonal pillars that stretch from the cliffs into the sea.

Which choice is the most grammatically correct punctuation of the underlined portion?

Cellulose nitrate served as the primary base for motion picture film from the inception of cinema until the early 1950s, lauded for its luminous quality and high tensile strength. However, this compound is notoriously unstable: it is highly flammable, prone to spontaneous combustion under ambient conditions, and susceptible to auto-catalytic decay that reduces the film to an acidic, highly combustible powder. [1] __________________________________________________ Consequently, archives worldwide must house these fragile historical documents in specialized, sub-freezing vaults designed to suppress chemical degradation and mitigate fire hazards.

Which choice most effectively introduces the paragraph's discussion of the specialized storage and safety measures required to preserve cellulose nitrate film?

The following passage is an excerpt from a biography of Filippo Brunelleschi.

Filippo Brunelleschi’s dome for the Florence Cathedral remains a marvel of the Renaissance. The massive brick structure—a masterpiece of Renaissance engineering, puzzled contemporary builders who deemed its construction impossible without temporary wooden scaffolding. Brunelleschi resolved this challenge by inventing an entirely new hoisting machine and utilizing a herringbone brick-laying pattern.

Which of the following choices best completes the sentence, ensuring correct punctuation and sentence structure?

The following passage is an essay about Marie Tharp and ocean mapping.

[1]
For decades, the consensus among geologists was that the ocean floor was a flat, featureless plain. In the early 1950s, Marie Tharp, a geologist and cartographer at Columbia University, set out to challenge this assumption. Working with raw topographic data collected by her colleague Bruce Heezen, Tharp spent years drafting detailed profiles of the Atlantic Ocean floor. Because women were barred from working on research vessels at the time, Tharp relied entirely on Heezen's sonar data, painstakingly hand-drawing the underwater landscapes.

[2]
As Tharp plotted the data points, she noticed a distinct V-shaped valley running down the center of the Mid-Atlantic Ridge. She hypothesized that this feature was a rift valley, which would indicate that the ocean floor was spreading apart. This concept of continental drift was highly controversial and widely dismissed by the scientific community at the time. When Tharp first showed her findings to Heezen, he dismissed it as "girl talk." Undeterred, Tharp insisted on re-evaluating the data until Heezen was convinced, leading to their collaborative publication of the first physiographic map of the North Atlantic in 1957.

[3]
Tharp and Heezen's map revolutionized the field of earth science, providing visual evidence that supported the theory of plate tectonics. By showing that the ocean floor was dynamic and actively changing, their work transformed our understanding of how Earth's crust is formed and recycled. Today, Tharp is recognized not only for her monumental contributions to marine cartography but also as a pioneer who broke through the gender barriers of mid-century academia.

Suppose the writer's goal had been to write an essay that profiles the collaborative relationship between Marie Tharp and Bruce Heezen, emphasizing their shared academic backgrounds and mutual career development. Would this essay fulfill that goal?

In 1856, eighteen-year-old chemist William Henry Perkin was attempting to synthesize quinine, a treatment for malaria, in his home laboratory in London. Instead of obtaining a clear drug, Perkin ended up with a dark, sludge-like residue. When he attempted to clean the flask with alcohol, the mixture turned a brilliant purple. Recognizing the potential of the vibrant hue, Perkin realized he had accidentally created the first synthetic organic dye, which he eventually named mauveine.

Prior to Perkin’s discovery, dyes were derived exclusively from natural sources like plants, insects, and minerals. Purple, historically harvested from the glands of Mediterranean sea snails, was so rare and expensive that it was reserved almost entirely for royalty. Mauveine transformed this landscape. Because it could be mass-produced in a laboratory at a fraction of the cost, purple fabric suddenly became accessible to the general public. Perkin quickly patented his process, secured financial backing, and built a factory to manufacture the dye, sparking a fashion craze across Europe.

Perkin’s success did more than just revolutionize fashion; it laid the foundation for the modern chemical industry. The methods used to synthesize mauveine demonstrated that valuable organic compounds could be engineered systematically from coal tar, a waste product of coal gas production. This breakthrough prompted researchers to develop synthetic colors, artificial pharmaceuticals, and new plastics. By transforming chemistry from a descriptive science to a creative, industrial enterprise, Perkin’s accidental residue reshaped the modern world.

Suppose the writer’s goal had been to write an essay demonstrating how an accidental laboratory discovery influenced both nineteenth-century European fashion and the trajectory of industrial chemistry. The essay successfully achieves this goal.

Before the archivist could catalog the rare documents, she had to stabilize the brittle, yellowed, parchment sheets, and she worked under a fume hood to avoid inhaling mold spores.

Which choice best punctuates the underlined portion of the sentence?

[1] In 1910, French engineer Georges Claude introduced the neon lamp to the public at the Paris Motor Show, capitalizing on a byproduct of his air liquefaction business. [2] Claude had been searching for a way to utilize the abundant neon gas left over from producing pure oxygen for industrial applications. [3] He discovered that passing an electric current through the gas in a sealed glass tube produced a brilliant, luminous red light. [4] Under normal atmospheric conditions, neon is a colorless, odorless, and chemically inert monatomic gas. [5] Recognizing the advertising potential of his discovery, Claude soon sold the first commercial neon signs to a Parisian barber, launching a global industry that would permanently transform the nighttime aesthetics of modern cities.

The writer is considering deleting Sentence 4 from the paragraph. Should the sentence be kept or deleted?

In 1873, tailor Jacob Davis and merchant Levi Strauss patented a new type of durable work pants. These pants featured copper rivets at points of strain, such as pocket corners, to prevent tearing. The rivets were manufactured in a small factory located in Maryland. The sturdy trousers, later known as blue jeans, quickly became popular among miners who needed clothing that would not rip during hard labor.

The writer is considering deleting the underlined sentence from the passage. Should this sentence be deleted?