Tüm alıştırma soruları

5556 soru

Soru 981Soru

For decades, scholars of Maya hieroglyphs viewed the inscriptions as purely mystical, representing astronomical calendars and religious symbols rather than historical records. This perspective shifted in 1960 when art historian Tatiana Proskouriakoff published a groundbreaking study of the stelae—carved stone slabs—at the site of Piedras Negras. By arranging the monuments chronologically based on their carved dates, she noticed that the life spans of the figures depicted corresponded to average human lifespans, suggesting the carvings actually recorded the histories of rulers.

The writer wants to conclude the paragraph by reinforcing the impact of Proskouriakoff’s discovery on the scholarly understanding of Maya writing. Which choice best accomplishes this goal?

Cevabı ve açıklamayı göster

Cevap: Ultimately, her findings proved that the glyphs were a historical writing system, permanently altering how researchers interpret Maya texts.

Cevap

Ultimately, her findings proved that the glyphs were a historical writing system, permanently altering how researchers interpret Maya texts.
The correct answer is the option starting with 'Ultimately' because it logically concludes the paragraph by highlighting how Proskouriakoff's findings proved the historical nature of the writing system, directly reinforcing the paragraph's focus on the shift in scholarly understanding. It is also grammatically correct and uses an appropriate transitional word.

Adım Adım Çözüm

1
Analyze the prompt to identify the specific writing goal.
The goal is to select a concluding sentence that reinforces the impact of Tatiana Proskouriakoff’s discovery on the scholarly understanding of Maya writing.
Identifying the precise rhetorical goal prevents choosing options that introduce irrelevant details.
2
Evaluate each option's relevance and alignment with the target goal.
The option discussing the proof of a historical writing system directly relates to the understanding of Maya writing, whereas the option about temple sketching introduces unrelated architectural details.
Evaluating content relevance ensures that the selected conclusion ties back to the paragraph's main thesis without introducing unsupported details.
3
Check the remaining options for correct logical transitions and grammatical accuracy.
The option using 'Nevertheless' is a comma splice, and the option using 'For instance' contains incorrect commas around a restrictive clause. The option beginning with 'Ultimately' is grammatically correct and uses a logical transitional word.
The ACT tests both style and grammar, meaning the correct option must be grammatically flawless and use appropriate transitions.

Anahtar Kavram

Selecting Concluding Sentences and Transitions
Tahmini Süre:1m 0s
Soru 982Soru

To prevent unwanted echoes in a performance space, acoustic engineers design modern concert halls using a variety of specialized materials including: sound-absorbing panels, wooden diffusers, and heavy drapery to control sound reverberation.

Which choice best punctuates the underlined portion of the sentence?

Cevabı ve açıklamayı göster

Cevap: materials: sound-absorbing panels

Cevap

The choice that places a colon directly after 'materials' and before the list of items ('materials: sound-absorbing panels').
The correct choice containing 'materials: sound-absorbing panels' uses a colon appropriately. A colon must be preceded by an independent clause. Since 'To prevent unwanted echoes in a performance space, acoustic engineers design modern concert halls using a variety of specialized materials' can stand alone as a complete sentence, the colon is correct and properly introduces the explanatory list of materials.

Adım Adım Çözüm

1
Analyze the clause preceding the punctuation mark to determine if it is independent.
The clause 'To prevent unwanted echoes in a performance space, acoustic engineers design modern concert halls using a variety of specialized materials' is independent because it contains a subject and a verb and expresses a complete thought.
In formal English, a colon must always be preceded by a complete independent clause.
2
Evaluate the relationship between the independent clause and the information that follows it.
The subsequent items ('sound-absorbing panels, wooden diffusers, and heavy drapery') form a list of examples clarifying the 'specialized materials' in the main clause.
A colon is the standard punctuation mark used to introduce a list of examples that explain or amplify a noun in the preceding independent clause.
3
Verify that other options do not introduce new punctuation errors.
Placing a colon after 'including' or using a semicolon to introduce a list are grammatical errors, and a simple comma fails to show the introductory relationship.
This confirms that only the choice with the colon after 'materials' is grammatically correct and appropriate.

Anahtar Kavram

A colon must be preceded by an independent clause and is commonly used to introduce a list, explanation, or amplification.
Tahmini Süre:1m 0s
Soru 983Soru

The following paragraphs are from an essay about the history of the chocolate chip cookie. For the sake of the logic and cohesion of this essay, in what order should the numbered paragraphs be arranged?

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The paragraphs should be arranged in the order: Paragraph [3], Paragraph [4], Paragraph [1], and Paragraph [2].
The correct order of the paragraphs is Paragraph [3], Paragraph [4], Paragraph [1], and Paragraph [2]. Paragraph [3] introduces the topic and the creator, setting the context. Paragraph [4] follows by detailing the specific accident of the invention. Paragraph [1] details the immediate aftermath and introduces Nestlé. Paragraph [2] concludes with the deal struck between Wakefield and Nestlé.

Adım Adım Çözüm

1
Identify the introductory paragraph that provides the overall context for the essay.
Paragraph [3] is identified as the introduction.
Paragraph [3] introduces the central topic (the chocolate chip cookie) and the creator (Ruth Wakefield) while setting up the premise of an accidental invention.
2
Find the paragraph that explains the details of the accidental invention mentioned in Paragraph [3].
Paragraph [4] is identified as the second paragraph.
Paragraph [4] describes the specific details of the accident ('Wakefield had intended... Instead...'), which directly explains the accidental invention introduced in Paragraph [3].
3
Determine the paragraph that describes the immediate result of the cookies' creation and introduces the next logical topic.
Paragraph [1] is identified as the third paragraph.
Paragraph [1] details the immediate popularity of these new cookies and introduces the Nestlé chocolate company, preparing the reader for the final paragraph.
4
Identify the paragraph that describes the business deal made between Nestlé and Wakefield.
Paragraph [2] is identified as the final paragraph.
Paragraph [2] must follow Paragraph [1] because it begins by referencing Nestlé's recognition of a business opportunity, which builds directly on Nestlé's interest introduced at the end of Paragraph [1].

Anahtar Kavram

Paragraph Reordering and Placement
Soru 984Soru

The following paragraphs are from an essay about the history of synthetic chemistry.

Paragraph 1
In 1856, eighteen-year-old chemist William Henry Perkin was attempting to synthesize quinine, a treatment for malaria, in his home laboratory. Instead of obtaining the clear drug, his experiments resulted in a dark, sludge-like residue. When cleaning the beaker with alcohol, Perkin noticed that the substance left behind a vibrant, purple wash. He had accidentally created mauveine, the world's first synthetic aniline dye. At the time, purple clothing was a luxury reserved exclusively for the wealthy, as natural purple dye had to be painstakingly harvested from thousands of Mediterranean sea snails.

Paragraph 2
[1] Soon, the streets of London and Paris were awash in mauve garments, sparking a fashion revolution. This breakthrough did not merely change the fashion industry; it also laid the foundation for the modern chemical industry, showing that valuable organic compounds could be synthesized from cheap, abundant coal tar.

Which choice provides the most effective transition from the preceding paragraph to the rest of the passage at the underlined portion [1]?

Cevabı ve açıklamayı göster

Cevap: Recognizing the commercial potential of this easily produced alternative to rare sea snails, Perkin patented his discovery and built a factory.

Cevap

Recognizing the commercial potential of this easily produced alternative to rare sea snails, Perkin patented his discovery and built a factory.
The correct choice effectively transitions between the two paragraphs by directly linking the reference to rare sea snails at the end of the first paragraph to the actions of patenting the discovery and building a factory. This connects the idea of a costly natural dye with the creation of an accessible synthetic alternative, setting up the subsequent sentence about the widespread fashion revolution in London and Paris.

Adım Adım Çözüm

1
Analyze the end of the first paragraph to identify the main focus.
The paragraph concludes by highlighting that natural purple dye was extremely rare and costly because it had to be harvested from Mediterranean sea snails.
An effective paragraph transition must connect back to the ideas that directly precede it.
2
Analyze the second paragraph to identify the subsequent focus.
The second paragraph describes how the mauve garments became widespread in London and Paris, sparking a fashion revolution and launching the chemical industry.
The transition must set up the ideas that follow it, bridging scarcity to mass accessibility.
3
Evaluate the choices for logical coherence and grammatical correctness.
The correct choice links the sea snails (preceding paragraph) with the factory and commercialization (following paragraph) without any grammatical errors, unlike the distractors which contain a comma splice, a tense shift, or a preposition error.
The ideal option must satisfy both logical and grammatical criteria.

Anahtar Kavram

Paragraph-Level Transitions
Soru 985Soru

Refer to the underlined portion marked [1] in the following passage:

'Many people believe that camels store water in their humps. [1] Furthermore, these humps are actually filled with fat, which provides the animals with energy when food is scarce.'

Which choice provides the most logical transition between the two sentences?

Cevabı ve açıklamayı göster

Cevap: However,

Cevap

The transition 'However,' is the correct choice because it establishes a logical contrast between the common belief that camels store water in their humps and the actual fact that their humps are filled with fat.
The transition 'However' is correct because the second sentence introduces a factual reality that directly contradicts the common misconception mentioned in the first sentence.

Adım Adım Çözüm

1
Analyze the logical relationship between the two sentences.
The first sentence describes a common belief, and the second sentence introduces a fact that contradicts that belief, representing a contrasting relationship.
Identifying the relationship between the sentences is required to select the appropriate transitional word.
2
Evaluate the transition words in the given options.
'Furthermore' (addition), 'Therefore' (cause-effect), and 'Likewise' (comparison) do not express contrast. Only 'However' correctly expresses contrast.
Eliminating incorrect relationship categories leaves the one correct transition.

Anahtar Kavram

Sentence-level transitions must reflect the precise logical relationship (contrast, cause-effect, addition, or illustration) between the sentences they connect.
Tahmini Süre:45s
Soru 986Soru

The following passage is an excerpt from an article about modern engineering challenges.

Constructed deep inside a sandstone mountain on a remote Arctic island, the Svalbard Global Seed Vault was designed to preserve the world's crop diversity against global catastrophes. The facility was built there specifically because the surrounding permafrost was expected to act as a natural, fail-safe coolant even if the vault's mechanical refrigeration systems failed. Consequently, rising Arctic temperatures in 2017 caused the permafrost to melt, sending meltwater rushing into the entrance tunnel and forcing engineers to install waterproof walls.

Which choice provides the most logical transition between the two sentences?

Cevabı ve açıklamayı göster

Cevap: However,

Cevap

The transition 'However,' is the correct choice because it establishes the appropriate contrast relationship and is punctuated correctly.
The correct answer uses the contrast transition 'However,' starting a new sentence. This transition logically connects the expectation that the permafrost would serve as a fail-safe coolant with the reality that rising temperatures caused it to melt. It is grammatically correct because a period separates the two independent clauses.

Adım Adım Çözüm

1
Analyze the relationship between the two sentences.
The first sentence describes the expectation that permafrost would act as a fail-safe coolant. The second sentence describes the reality that rising temperatures caused the permafrost to melt. This is a contrast relationship.
Identifying the logical connection is the first step in choosing the correct transition word.
2
Evaluate the transition words based on the logical relationship.
The transition 'However' represents contrast, whereas 'Consequently' represents cause-and-effect, and 'For example' represents illustration.
Only a contrast transition makes sense in this context.
3
Check the punctuation and grammatical structure of the options.
The option containing 'however' preceded by a comma creates a comma splice because 'however' cannot join two independent clauses. The option starting a new sentence with 'However,' is grammatically correct.
Transitions must be punctuated correctly to avoid sentence structure errors like comma splices.

Anahtar Kavram

Selecting the correct transition word to establish logical relationships between sentences while maintaining proper punctuation and avoiding comma splices.
Tahmini Süre:1m 0s
Soru 987Soru

During the stress test of the experimental titanium alloy, the materials scientist observed that the lightweight, durable, metal, deformed under extreme pressure, she decided to adjust the chemical composition for the next trial.

Which option represents the correct punctuation for the underlined portion?

Cevabı ve açıklamayı göster

Cevap: lightweight, durable metal deformed under extreme pressure; she decided

Cevap

lightweight, durable metal deformed under extreme pressure; she decided
The correct answer properly separates the coordinate adjectives 'lightweight' and 'durable' with a comma while keeping the noun 'metal' joined to its modifying adjectives and its verb 'deformed' without unnecessary commas. It also correctly uses a semicolon to separate the two independent clauses.

Adım Adım Çözüm

1
Analyze the punctuation between the adjectives 'lightweight' and 'durable' and the noun 'metal'.
Since 'lightweight' and 'durable' are coordinate adjectives (they can be reversed or joined by 'and'), they must be separated by a comma. However, no comma should separate the final adjective from the noun it modifies.
To ensure correct adjective punctuation.
2
Examine the punctuation between the subject 'metal' and the verb 'deformed'.
No punctuation should separate the subject from its verb.
To avoid separating the subject and the verb.
3
Evaluate the clause boundary between the two independent clauses: the observation clause and the decision clause.
Since both parts function as independent clauses, they must be separated by a semicolon or a comma followed by a coordinating conjunction. Using a semicolon with a subordinating conjunction like 'because' creates a dependent clause fragment.
To connect the independent clauses grammatically without creating a comma splice or sentence fragment.

Anahtar Kavram

Identifying coordinate adjectives, avoiding punctuation between subject and verb, and correctly connecting independent clauses using semicolons rather than comma splices or dependent clause fragments.
Tahmini Süre:1m 0s
Soru 988Soru

The following paragraphs are from an essay about the history of the potato in Europe. Arrange the paragraphs in the most logical order to create a cohesive passage.

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The correct order of the paragraphs is: the introduction of the potato's arrival, followed by the paragraph describing initial European suspicion, and concluding with the paragraph explaining its eventual adoption as a staple crop.
The most logical order begins with the introduction of the potato's origin and arrival in Europe, continues with the paragraph describing the public suspicion that existed despite botanical interest, and concludes with the paragraph detailing its eventual acceptance as a staple crop due to famine and war.

Adım Adım Çözüm

1
Identify the introductory paragraph.
The paragraph describing the Incas and the Spanish explorers introducing the potato to Europe is identified as the starting point.
It establishes the subject of the essay and provides the necessary context before any reaction to the crop is discussed.
2
Use transition words to link the next paragraph.
The paragraph beginning with 'Despite this botanical interest' is placed second.
The phrase 'this botanical interest' directly references the curiosity of European botanists mentioned at the end of the introductory paragraph.
3
Verify the logical conclusion of the passage.
The paragraph beginning with 'Over time, however' is placed last.
It explains how the initial fear and decorative use of the plant evolved into adoption as a staple food source, resolving the narrative.

Anahtar Kavram

Paragraph-Level Transitions
Soru 989Soru

The sentences below are from a draft of an essay about historical preservation. To ensure the paragraph logically builds its claim that optical scanning technologies safely retrieve sound from fragile wax cylinders, arrange the sentences in the most logical order.

Öğeleri doğru sıraya koymak için sürükleyin

Cevabı ve açıklamayı göster

Cevap

The correct order of the sentences begins with the explanation of the fragile wax cylinders and traditional stylus wear, followed by the introduction of non-contact optical scanners, then the conversion of those visual scans into a three-dimensional digital model, and concludes with the software recreating the audio from the model.
The paragraph develops logically by first identifying the problem (stylus wear on fragile wax cylinders), introducing the technological solution (optical scanners), explaining the intermediate processing step (creating a three-dimensional model), and concluding with the final output (software recreating the audio).

Adım Adım Çözüm

1
Identify the introductory sentence that sets up the context or claim.
The sentence describing the historical struggle to preserve wax cylinders due to physical stylus wear is the only logical start.
It introduces the topic and the central problem that the rest of the paragraph addresses.
2
Connect the problem to the proposed solution using cohesive transitions.
The sentence starting with 'In response to this preservation crisis' follows next, introducing the optical scanning method.
The phrase 'this preservation crisis' directly references the stylus damage described in the opening sentence.
3
Trace the step-by-step technological process.
The sentence about converting visual scans into a three-dimensional digital model follows the introduction of scanners.
The phrase 'These detailed visual scans' references the scans generated by the optical scanners in the second sentence.
4
Locate the concluding sentence that resolves the problem.
The sentence starting with 'Ultimately' comes last.
It uses the phrase 'this digital model' to refer to the model generated in the third step, and completes the explanation of how audio is safely retrieved.

Anahtar Kavram

Logical paragraph development and cohesive transitions supporting a claim with step-by-step details.
Tahmini Süre:1m 30s
Soru 990Soru

In the late nineteenth century, bicycling was a privilege reserved primarily for athletic young men who could navigate the precarious "ordinary" bicycle—popularly known as the penny-farthing. With its massive front wheel and lack of brakes, the penny-farthing was notoriously difficult to mount and prone to sending riders headfirst over the handlebars.

[1] __________________________________________________. This new design featured two wheels of equal size, a steerable front wheel, and a chain drive connected to the rear wheel, making cycling accessible to the general public. As a result, millions of people, particularly women, gained a new sense of independence and mobility.

Given that all the choices are true, which one, if inserted at [1], provides the most effective introduction to the second paragraph and best establishes the focus of the remainder of the passage?

Cevabı ve açıklamayı göster

Cevap: However, the invention of the safety bicycle in 1885 transformed the activity from a hazardous sport into a mass phenomenon.

Cevap

However, the invention of the safety bicycle in 1885 transformed the activity from a hazardous sport into a mass phenomenon.
The correct option correctly uses the transition 'However' to contrast the dangerous penny-farthing described in the first paragraph with the safer design of the safety bicycle. It introduces the subject of the second paragraph and sets up the passage's thesis about how this design made cycling accessible to the public.

Adım Adım Çözüm

1
Analyze the surrounding context to determine the relationship between the first and second paragraphs.
The first paragraph describes the dangerous and exclusive nature of early penny-farthing bicycles. The second paragraph describes a new, safer design and its broad social accessibility.
This establishes that a contrasting transition is needed to link the two paragraphs logically.
2
Identify the primary topic of the second paragraph and the overall focus of the passage.
The second paragraph details the features of the safety bicycle, and the passage concludes with its impact on the general public. Thus, the introduction must establish the safety bicycle and its transformative impact.
This helps filter out choices that are off-topic or fail to establish the correct thesis.
3
Evaluate the choices for grammatical correctness and rhetorical fit.
The choice beginning with 'However' is grammatically correct and logically connects the paragraphs. The option starting with 'Because' is a fragment. The option discussing 'steel goods' is off-topic. The option starting with 'Inventors in England' is a comma splice.
This eliminates grammatically incorrect or rhetorically weak options, leaving the correct choice.

Anahtar Kavram

Establishing Introductions and Thesis Statements
Soru 991Soru

Passage:

In 1964, radio astronomers Arno Penzias and Robert Wilson were using a large horn antenna in Holmdel, New Jersey, to detect weak radio waves bounced off balloon satellites. To their frustration, they kept detecting a persistent, low-level hum in the microwave spectrum that seemed to come from all directions in the sky. They spent months checking their equipment, going so far as to clean out nesting pigeons and their waste from the horn, but the static remained. Ultimately, this mysterious noise was identified not as a technical malfunction, but as the cosmic microwave background radiation—the relic radiation left over from the Big Bang.

The writer wants to add a concluding sentence at the end of the passage to emphasize the significance of the scientists' discovery. Which of the following sentences best accomplishes this goal?

Cevabı ve açıklamayı göster

Cevap: This accidental discovery provided the first direct observational evidence for the Big Bang theory, fundamentally transforming our understanding of the universe's origin.

Cevap

The sentence that describes the accidental discovery providing the first direct observational evidence for the Big Bang theory, fundamentally transforming our understanding of the universe's origin.
The correct option is the sentence stating that the accidental discovery provided the first direct observational evidence for the Big Bang theory. This sentence summarizes the historical significance of the discovery described in the passage and connects directly to the mention of the Big Bang without introducing unrelated details.

Adım Adım Çözüm

1
Analyze the main focus of the passage.
The passage describes the accidental discovery of cosmic microwave background radiation, which is the relic radiation from the Big Bang.
Understanding the core topic of the passage is necessary to determine what information a concluding sentence should summarize or emphasize.
2
Evaluate each option for grammatical correctness and logical flow.
Identify that the option containing a comma splice is grammatically incorrect, and the option with a future tense shift is inconsistent with the historical narrative. The option discussing Pyotr Kapitsa introduces irrelevant details.
ACT questions often test multiple grammatical and rhetorical skills simultaneously, so eliminating grammatically flawed options narrows down the choices.
3
Choose the option that best concludes the passage by emphasizing its significance without introducing unrelated details.
The sentence emphasizing the direct observational evidence for the Big Bang theory is chosen because it logically concludes the narrative about the discovery's significance.
An effective conclusion must wrap up the main point of the passage and connect back to its central thesis.

Anahtar Kavram

Selecting effective concluding sentences that align with the passage's main thesis.
Tahmini Süre:1m 0s
Soru 992Soru

During their long voyages across the Pacific Ocean, ancient Polynesian wayfinders navigated without instruments; instead, they relied on a variety of natural clues, such as: the patterns of ocean swells, the flight paths of nesting seabirds, and the positions of stars.

Which of the following options is the correct way to write the underlined portion?

Cevabı ve açıklamayı göster

Cevap: clues: the

Cevap

clues: the
The correct option replaces the incorrect punctuation with a colon. A colon is appropriate here because the preceding clause ('During their long voyages across the Pacific Ocean, ancient Polynesian wayfinders navigated without instruments; instead, they relied on a variety of natural clues') is independent and can stand alone as a complete sentence, and the colon introduces a list that details those clues.

Adım Adım Çözüm

1
Analyze the clause preceding the punctuation to determine if it is independent.
The clause 'During their long voyages across the Pacific Ocean, ancient Polynesian wayfinders navigated without instruments; instead, they relied on a variety of natural clues' is independent and can stand alone as a complete sentence.
A colon can only be used if it is preceded by a complete independent clause.
2
Evaluate the structure of the list following the punctuation.
The text following the punctuation is a list of three noun phrases detailing the natural clues.
A colon is appropriate for introducing a list of items that explain or elaborate on a general term in the preceding clause.
3
Check the distractors against punctuation rules.
The option with 'such as:' is incorrect because 'such as' cannot precede a colon. The option with 'clues. Because the' creates a sentence fragment. The option with 'clues, they studied the' creates a comma splice by joining two independent clauses with a comma.
Eliminating grammatically incorrect punctuation choices confirms the correct option.

Anahtar Kavram

Colons must be preceded by an independent clause and can be used to introduce a list, explanation, or elaboration.
Soru 993Soru

A writer is drafting an essay about concert hall design.

Concert hall design relies heavily on the strategic placement of acoustic clouds—suspended overhead panels that reflect sound waves toward the audience. In large halls, sound traveling directly from the stage can dissipate before reaching the rear seats, resulting in a muffled listening experience. Acoustic clouds solve this by intercepting upward-traveling sound waves and directing them downward. These panels are typically constructed from dense materials like glass-reinforced gypsum or hardwood to ensure they reflect rather than absorb sound. By carefully adjusting the angle and height of these panels, acousticians can customize the sound distribution to suit different musical performances, from intimate chamber ensembles to full orchestras.

The writer is considering deleting the bolded sentence. Should the sentence be kept or deleted?

Cevabı ve açıklamayı göster

Cevap: Kept, because it provides concrete details about the material composition of acoustic clouds that explain how they function as reflectors.

Cevap

The sentence should be kept because it provides concrete details about the material composition of acoustic clouds that explain how they function as reflectors.
The option suggesting the sentence be kept because it provides concrete details about the material composition of acoustic clouds is correct. The paragraph focuses on how acoustic clouds function to redirect sound waves to prevent them from dissipating. Explaining that the panels are made of dense materials like glass-reinforced gypsum or hardwood to ensure they reflect rather than absorb sound directly supports this focus by explaining how the clouds are structurally suited to perform their designated function.

Adım Adım Çözüm

1
Analyze the main focus of the paragraph.
The paragraph describes the purpose of acoustic clouds in concert halls, explaining how they prevent sound from dissipating by reflecting sound waves downward.
Understanding the paragraph's focus is essential to determine whether the bolded sentence contributes to or interrupts the development of the topic.
2
Evaluate the purpose of the bolded sentence.
The bolded sentence explains that the panels are made of dense materials to ensure they reflect sound rather than absorb it.
This step assesses how the specific sentence relates to the paragraph's overall discussion of sound reflection.
3
Determine whether the sentence should be kept or deleted.
Since the sentence explains how the panels achieve their reflective function, it is relevant and should be kept.
This guides the final decision between keeping or deleting the sentence.
4
Select the option that matches the correct decision and provides the correct logical reasoning.
The correct choice is the option that states the sentence should be kept because it provides concrete details about the material composition explaining how the panels function as reflectors.
This eliminates distractors that have the wrong decision or incorrect justifications.

Anahtar Kavram

Evaluating Relevance for Adding or Deleting Content
Soru 994Soru

[1] __________________________________________________

[2] For generations, Western epigraphers had treated Maya hieroglyphs as purely ideographic symbols representing abstract concepts rather than phonetic sounds. This consensus was largely enforced by the prominent archaeologist J. Eric S. Thompson, who dismissed any phonetic interpretations as groundless speculation.

In 1952, Soviet linguist Yuri Knorozov challenged this dogma by publishing a paper proposing that the writing system was logo-syllabic, combining logograms with phonetic syllables. By applying this syllable-based reading to the 16th-century manuscripts of Bishop Diego de Landa, Knorozov successfully decoded glyphs phonetically. This breakthrough ultimately unlocked the rich historical records of the Maya civilization, proving that their writing was a fully functional, spoken language.

Which of the following sentences, if placed at the beginning of the passage (replacing the placeholder [1]), would most effectively introduce the main topic of the passage?

Cevabı ve açıklamayı göster

Cevap: For decades, the effort to decode Maya hieroglyphs was stalled by academic consensus until a Soviet linguist demonstrated that the writing system was phonetic.

Cevap

The correct answer is the option stating that the effort to decode Maya hieroglyphs was stalled by academic consensus until a Soviet linguist demonstrated that the writing system was phonetic.
The correct answer introduces both the core challenge (the long-held belief that Maya glyphs were non-phonetic) and the main breakthrough (Knorozov showing the script was phonetic) discussed throughout the passage. This provides a comprehensive introduction to the passage's primary focus.

Adım Adım Çözüm

1
Read the passage to determine its main focus and theme.
The passage describes how the academic consensus historically viewed Maya hieroglyphs as purely non-phonetic symbols, and how Yuri Knorozov disproved this by showing they were phonetic.
An effective introduction must set up the central conflict and subject matter of the passage.
2
Evaluate the grammatical correctness of each choice.
The option containing a comma splice and the option starting with 'Because' are grammatically incorrect.
ACT English questions require grammatically sound sentences.
3
Compare the remaining grammatically correct options for relevance.
The option discussing the destruction of manuscripts is off-topic, while the option about the phonetic breakthrough correctly introduces the passage's main thesis.
The introduction must align with the passage's focus on decipherment.

Anahtar Kavram

Establishing Introductions and Thesis Statements
Soru 995Soru

Passage

In the early twentieth century, astronomer Henrietta Swan Leavitt made a groundbreaking discovery while analyzing photographic plates at the Harvard College Observatory. By studying Cepheid variable stars, she established that a star’s intrinsic luminosity is directly related to the period of its pulsations. This relationship became a vital tool, enabling astronomers to calculate the distance to far-off galaxies. Indeed, Edwin Hubble used Leavitt’s law to determine the distance to the Andromeda Nebula, showing that it lay far outside our own galaxy.

Given that all the choices are true, the writer wants to revise the bolded sentence to provide the most specific, concrete details that support the claim that Leavitt's discovery was essential in measuring the vast scale of the universe. Which choice best accomplishes this goal?

Cevabı ve açıklamayı göster

Cevap: Indeed, Edwin Hubble used Leavitt's law to calculate that the Andromeda Nebula was 2.5 million light-years away, proving it was a separate galaxy rather than a local cloud of gas.

Cevap

Indeed, Edwin Hubble used Leavitt's law to calculate that the Andromeda Nebula was 2.5 million light-years away, proving it was a separate galaxy rather than a local cloud of gas.
The correct choice successfully meets the rhetorical goal by providing highly specific, concrete details—such as the precise distance of '2.5 million light-years away' and the impact of 'proving it was a separate galaxy rather than a local cloud of gas'—which directly support the claim about measuring the scale of the universe.

Adım Adım Çözüm

1
Analyze the prompt's rhetorical goal.
The goal is to find the option that provides the most specific, concrete details supporting the claim that Leavitt's discovery helped measure the vast scale of the universe.
This establishes the criteria for evaluating the choices.
2
Evaluate the choices against the goal and look for factual relevance and level of detail.
The option about the Nobel Prize nomination is about professional recognition, not cosmic distance. The option about 'extremely far away' is too vague. The option with '2.5 million light-years away' provides specific, quantitative, concrete data.
This filters out irrelevant or overly generalized choices.
3
Check the remaining candidates for grammatical accuracy.
The option containing the semicolon before 'which lay' is grammatically incorrect, leaving only the option with the concrete measurement of 2.5 million light-years as both grammatically correct and rhetorically optimal.
This ensures the final selection meets both rhetorical goals and standard grammatical rules.

Anahtar Kavram

Supporting Claims with Evidence and Details
Soru 996Soru

The following paragraph may or may not be in the most logical order.

[1] In the 1970s, cognitive scientists began investigating how the human brain processes metaphors, challenging the traditional view that metaphor is merely a decorative literary device. [2] According to this conventional perspective, metaphors are secondary linguistic tools that are processed only after a literal interpretation has been analyzed and rejected as nonsensical. [3] To explain this immediacy, researchers proposed the conceptual mapping hypothesis, which asserts that we automatically understand abstract domains in terms of concrete physical experiences. [4] Later psycholinguistic experiments, however, demonstrated that participants comprehended metaphorical expressions just as quickly as literal ones. [5] This surprising speed suggests that metaphors are processed automatically and are fundamental to everyday communication.

For the sake of the logic and cohesion of the paragraph, where is the most logical placement for Sentence 3?

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Cevap: after Sentence 5

Cevap

Sentence 3 should be placed after Sentence 5.
Placing Sentence 3 after Sentence 5 is correct because it maintains a logical progression of ideas and preserves the referential integrity of the text. Sentence 4 introduces the observation that metaphorical language is understood 'just as quickly' as literal language. Sentence 5 immediately follows this observation, referencing 'This surprising speed' to conclude that metaphors are processed automatically. Sentence 3 then logically follows Sentence 5, using the phrase 'this immediacy' to refer back to this rapid, automatic processing and proposing the conceptual mapping hypothesis as an explanation for it.

Adım Adım Çözüm

1
Identify key transition and reference words in the target sentence.
In Sentence 3, the phrase 'this immediacy' is identified as a demonstrative noun phrase requiring an antecedent that establishes speed or rapid processing.
Determining what 'this immediacy' refers to is necessary to find its logical placement in the paragraph.
2
Analyze the remaining sentences to locate the introduction and development of the concept of speed.
Sentence 4 states that participants comprehended metaphors 'just as quickly' as literal expressions, and Sentence 5 references 'This surprising speed' and notes that metaphors are processed 'automatically.'
This establishes that the concept of immediate processing is only introduced and defined in Sentences 4 and 5.
3
Evaluate the placement of Sentence 3 relative to Sentences 4 and 5 to ensure uninterrupted reference chains.
Sentence 5 must immediately follow Sentence 4 to maintain the link between 'just as quickly' and 'This surprising speed.' Consequently, Sentence 3 must follow Sentence 5 so that 'this immediacy' can refer back to the automatic, rapid processing described.
This configuration avoids separating linked sentences and ensures all demonstrative references have clear, immediate antecedents.

Anahtar Kavram

Sentence Reordering and Placement based on reference chains and transitions
Soru 997Soru

If aa, bb, and cc are positive real numbers such that a(b+c)=20a(b + c) = 20, b(c+a)=13b(c + a) = 13, and c(a+b)=25c(a + b) = 25, what is the value of the product abcabc?

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Cevap: 24

Cevap

The product abcabc is equal to 24.
By applying the distributive property, we expand the system to ab+ac=20ab + ac = 20, ab+bc=13ab + bc = 13, and bc+ac=25bc + ac = 25. Adding these yields 2(ab+bc+ac)=582(ab + bc + ac) = 58, so ab+bc+ac=29ab + bc + ac = 29. We isolate the individual products: bc=9bc = 9, ac=16ac = 16, and ab=4ab = 4. Multiplying these gives (abc)2=4×9×16=576(abc)^2 = 4 \times 9 \times 16 = 576. Since the variables are positive, abc=576=24abc = \sqrt{576} = 24.

Adım Adım Çözüm

1
Expand the equations using the distributive property.
ab+ac=20ab + ac = 20, ab+bc=13ab + bc = 13, and bc+ac=25bc + ac = 25
This allows us to work with the pairwise products abab, bcbc, and acac directly.
2
Sum the three equations and divide by 2.
ab+bc+ac=29ab + bc + ac = 29
By adding the equations, each pairwise product appears twice: (ab+ac)+(ab+bc)+(bc+ac)=2(ab+bc+ac)=58(ab + ac) + (ab + bc) + (bc + ac) = 2(ab + bc + ac) = 58. Dividing by 2 gives their sum.
3
Solve for each pairwise product by subtracting the original equations from the sum.
bc=9bc = 9, ac=16ac = 16, and ab=4ab = 4
Subtracting ab+ac=20ab + ac = 20 from ab+bc+ac=29ab + bc + ac = 29 isolates bc=9bc = 9. Similarly, subtracting ab+bc=13ab + bc = 13 isolates ac=16ac = 16, and subtracting bc+ac=25bc + ac = 25 isolates ab=4ab = 4.
4
Multiply the pairwise products and take the square root.
(abc)2=576    abc=24(abc)^2 = 576 \implies abc = 24
Multiplying (ab)(bc)(ac)(ab)(bc)(ac) gives (abc)2(abc)^2. Since aa, bb, and cc are positive, their product abcabc must also be positive, so we take the positive square root of 576576, which is 2424.

Anahtar Kavram

Distributive property of multiplication over addition, and properties of equality in systems of equations.
Soru 998Soru

The following paragraphs are from an essay about the architectural design of the dome of Florence Cathedral.

Paragraph 1
In the early fifteenth century, Florence's cathedral committee faced a monumental engineering crisis: the massive octagonal expanse of Santa Maria del Fiore remained completely open to the sky. No existing scaffolding technology could support the weight of a stone dome of such unprecedented span, nor could the forest of timber required for traditional centring be sourced. Filippo Brunelleschi, a goldsmith by training rather than a master builder, proposed a revolutionary double-shelled design that would build itself upward without any temporary wooden support structure. By laying bricks in a self-supporting herringbone pattern, Brunelleschi managed to distribute the weight outward and downward, solving the structural puzzle that had baffled Italy's greatest minds for decades.

[1]

Paragraph 2
Today, visitors who climb the narrow passageways between the two brick shells can still observe this herringbone masonry, which serves as a testament to the dome's structural stability. Far from being a relic of the past, this architectural marvel continues to inspire modern engineers seeking sustainable, self-supporting building methods. Brunelleschi's fusion of aesthetics and structural mathematics proved that physical limitations could be overcome through sheer innovation.

Which choice provides the most effective transition at [1] from the preceding paragraph to the paragraph that follows?

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Cevap: Although many citizens doubted that such an ambitious plan could succeed, the completed dome stood as a triumph of Renaissance engineering.

Cevap

The option stating that the completed dome stood as a triumph of Renaissance engineering despite initial doubts is the correct answer because it bridges the design proposal phase with the finished dome's long-term stability and is grammatically correct.
The correct option provides a logical bridge by transitioning from the doubts surrounding the design plan (Paragraph 1) to the successful completion of the dome, which directly sets up the discussion of its modern-day stability and legacy (Paragraph 2). It is also grammatically correct.

Adım Adım Çözüm

1
Analyze the focus of Paragraph 1 and Paragraph 2.
Paragraph 1 discusses the proposed design solutions to build the dome without wooden support. Paragraph 2 discusses the modern-day legacy and observation of the completed dome's structural stability.
Understanding the topic of each paragraph is necessary to identify the logical transition needed between them.
2
Evaluate the logical connection required at the transition point.
The transition must bridge the historical design phase with the finished, durable structure, leading smoothly to the description of visitors observing it today.
A paragraph transition must connect the ideas of both surrounding paragraphs.
3
Evaluate the choices for grammatical correctness.
Three options contain grammatical errors: one has a comma splice, one has an incorrect tense shift, and one contains unidiomatic preposition usage. The correct option is grammatically flawless.
ACT English questions require both logical flow and grammatical correctness.

Anahtar Kavram

Paragraph-Level Transitions
Tahmini Süre:1m 15s
Soru 999Soru

The following paragraphs are from an essay about a major discovery in marine biology.

[1]
In 1977, a team of oceanographers aboard the research submersible *Alvin* descended into the Pacific Ocean near the Galápagos Islands. They expected to find a barren, freezing desert at the ocean floor, where sunlight could not reach. Instead, they discovered a bustling ecosystem of giant tube worms, blind crabs, and vast fields of clams thriving in the pitch-black waters.

[2]
To sustain this vibrant community without sunlight, a process entirely different from photosynthesis had to be occurring. Geochemists quickly identified that specialized bacteria were oxidizing toxic hydrogen sulfide spewing from the hydrothermal vents, converting the chemical energy into organic matter. This ground-breaking discovery of chemosynthesis challenged the long-held biological dogma that all life ultimately relies on solar energy.

[3]
Prior to this expedition, marine biologists had assumed that the deep ocean depended solely on a sparse "rain" of organic debris drifting down from the sunlit surface. The discovery of hydrothermal vents completely upended this model, proving that planetary heat could also fuel complex life.

[4]
Consequently, these hydrothermal vent communities became a primary model for studying how life might arise on other worlds, such as Jupiter's icy moon Europa. Before scientists could speculate about extraterrestrial life, however, they had to understand how this ecosystem survived in such extreme conditions.

For the sake of the logic and cohesion of this essay, where is the most appropriate place to position Paragraph 2?

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Cevap: after Paragraph 4

Cevap

after Paragraph 4
The correct choice is to place Paragraph 2 after Paragraph 4. Paragraph 4 ends with the observation that scientists needed to understand how the hydrothermal vent ecosystem survived in extreme conditions. Placing Paragraph 2 immediately after Paragraph 4 creates a logical sequence, as Paragraph 2 explains the process of chemosynthesis that allowed the community to survive. Furthermore, this ordering places Paragraph 3 immediately after Paragraph 1, which works well because Paragraph 3's reference to 'this expedition' points directly back to the 1977 expedition introduced in Paragraph 1.

Adım Adım Çözüm

1
Analyze the connection between Paragraph 1 and the other paragraphs to determine chronology.
Paragraph 1 introduces the 1977 expedition and the discovery of a deep-sea ecosystem. Paragraph 3 begins with 'Prior to this expedition,' which directly refers to the 1977 expedition in Paragraph 1. Therefore, Paragraph 3 must follow Paragraph 1.
To establish a clear chronological and thematic link between the expedition and the scientific assumptions that preceded it.
2
Determine the placement of Paragraph 4 relative to Paragraph 3.
Paragraph 3 concludes by stating that the discovery proved planetary heat could fuel complex life. Paragraph 4 begins with 'Consequently,' which draws a logical conclusion from this proof by explaining that these communities became models for studying extraterrestrial life on worlds like Europa. Thus, Paragraph 4 must follow Paragraph 3.
To maintain a logical cause-and-effect transition between the discovery's implications on Earth and its application to space exploration.
3
Determine the placement of Paragraph 2 based on cohesion clues.
Paragraph 4 concludes with the statement that scientists 'had to understand how this ecosystem survived.' Paragraph 2 directly answers this query by explaining the process of chemosynthesis that sustains the community. Therefore, Paragraph 2 must be placed after Paragraph 4.
To ensure that the explanation of the survival mechanism immediately follows the statement of the need to understand it.

Anahtar Kavram

Determining the logical order of paragraphs in an essay using transitional phrases, chronological markers, and pronoun references.
Tahmini Süre:2m 0s
Soru 1000Soru

For centuries, the ancient city of Petra remained hidden from the Western world behind a wall of sandstone cliffs. In 1812, Swiss explorer Johann Ludwig Burckhardt, a scholar who was fluent in Arabic finally gained entry to the valley. Disguised as a Bedouin, he successfully bypassed local guards to document the breathtaking ruins.

Which of the following options represents the correct punctuation for the underlined portion of the passage?

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Cevap: Burckhardt, a scholar who was fluent in Arabic,

Cevap

The correct option is the one that sets off the nonessential appositive with a pair of commas: 'Burckhardt, a scholar who was fluent in Arabic,'
The correct option correctly uses a pair of commas to set off the nonessential appositive phrase 'a scholar who was fluent in Arabic' from the main clause. Because this phrase provides extra, nonessential information about the explorer, it must be enclosed by commas on both sides.

Adım Adım Çözüm

1
Identify whether the underlined phrase is essential or nonessential to the sentence structure.
The phrase 'a scholar who was fluent in Arabic' is an appositive that describes Johann Ludwig Burckhardt. Removing it leaves a grammatically complete sentence: 'In 1812, Swiss explorer Johann Ludwig Burckhardt finally gained entry to the valley.' Therefore, the phrase is nonessential.
Nonessential elements must be set off from the rest of the sentence using punctuation on both sides.
2
Determine the correct punctuation to set off the nonessential appositive.
The appositive begins with a comma after 'Burckhardt', so it must end with a comma after 'Arabic' before the main verb 'finally'. Inside the appositive, the relative clause 'who was fluent in Arabic' is restrictive to 'scholar' and should not be separated from it by a comma. A semicolon cannot be used because the appositive is not an independent clause.
Applying these rules ensures the sentence is grammatically correct and clearly distinguishes between essential and nonessential information.

Anahtar Kavram

Commas with Nonessential and Parenthetical Elements
Tahmini Süre:1m 0s
ÖncekiSayfa 50 / 278Sonraki
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