Tüm alıştırma soruları

5556 soru

Soru 1261Soru

The following sentences are from a paragraph about the preservation of ancient scrolls. Arrange the sentences in the most logical order to form a coherent paragraph that begins with a clear introduction and ends with an effective concluding sentence.

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Cevap

The sentences should be ordered as follows: first, the sentence introducing the carbonized scrolls of Herculaneum; second, the sentence describing early physical attempts to unroll them; third, the sentence introducing multi-spectral imaging; fourth, the sentence explaining how infrared light reveals the script; and finally, the sentence summarizing the preservation and restoration of the texts.
The correct ordering begins with the sentence introducing the carbonized scrolls at Herculaneum, which sets the historical context. It is followed by the sentence describing the centuries of destructive physical attempts to unroll them. The third sentence introduces multi-spectral imaging to overcome 'this barrier' (the destruction). The fourth sentence explains the mechanics of 'this technology' using infrared light. The final sentence, beginning with 'Ultimately,' provides a strong conclusion that summarizes the dual benefits of preservation and restoration.

Adım Adım Çözüm

1
Identify the opening sentence that introduces the main topic.
The sentence about the Mount Vesuvius eruption and the carbonized, unreadable scrolls establishes the context.
A coherent paragraph must begin with an introduction of the subject before describing subsequent actions or technologies.
2
Determine the logical sequence of the middle sentences using transitional cues.
The sentence about 'early attempts to unroll these scrolls' follows the introduction, and the sentence beginning 'To overcome this barrier' must follow the destructive attempts. The sentence about 'this technology' must follow the introduction of multi-spectral imaging.
Pronouns and demonstrative adjectives like 'this barrier' and 'this technology' must immediately follow the specific nouns they refer to.
3
Identify the concluding sentence that wraps up the paragraph.
The sentence starting with 'Ultimately' summarizes the overall impact (preservation and restoration of literature).
An effective conclusion synthesizes the paragraph's main points and highlights the broader significance of the topic.

Anahtar Kavram

Opening and Concluding Sentences
Tahmini Süre:2m 0s
Soru 1262Soru

The local business owners were required to comply to the new safety regulations.

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

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Cevap: comply with

Cevap

The option containing 'comply with' is correct because 'comply' idiomatically requires the preposition 'with' when referring to following regulations.
The correct answer is 'comply with' because the verb 'comply' idiomatically pairs with the preposition 'with' when expressing adherence to a rule or request.

Adım Adım Çözüm

1
Identify the verb and the preposition combination in the underlined portion.
The sentence uses 'comply to' to express the action of following safety regulations.
Idiomatic usage requires specific prepositions to follow specific verbs.
2
Determine the correct idiomatic preposition that pairs with 'comply'.
The correct idiom is 'comply with'.
The preposition 'with' must follow 'comply' to correctly express adherence to rules.

Anahtar Kavram

Idiomatic Preposition Usage
Tahmini Süre:45s
Soru 1263Soru

The baker feeds the sourdough starter flour and water on a daily basis every day, this routine keeps the wild yeast active.

Which choice most effectively eliminates redundancy from the underlined portion while maintaining correct sentence structure?

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Cevap: daily. This routine

Cevap

The correct option is 'daily. This routine' because it eliminates the redundant wording and uses a period to correctly separate the two independent clauses.
The correct choice successfully removes the redundant words 'on a daily basis' and 'every day' by using the single word 'daily'. It also correctly uses a period to separate the two independent clauses, preventing a comma splice.

Adım Adım Çözüm

1
Identify the redundant elements in the original sentence.
The phrases 'on a daily basis' and 'every day' mean the same thing, making one of them redundant.
ACT English requires the most concise phrasing that preserves meaning without repeating concepts.
2
Analyze the sentence structure for grammatical errors.
The sentence contains two independent clauses: 'The baker feeds the sourdough starter flour and water' and 'this routine keeps the wild yeast active'. Joining them with just a comma creates a comma splice.
Independent clauses must be separated by a period, a semicolon, or a comma plus a coordinating conjunction.
3
Select the option that corrects both the redundancy and the grammatical error.
The option containing 'daily. This routine' achieves conciseness and separates the independent clauses with a period.
This is the only choice that is both grammatically correct and free of redundant phrasing.

Anahtar Kavram

Eliminating Redundancy
Soru 1264Soru

Although the digital archive was designed to be permanent, the fragile physical nature of magnetic tape means that data must be migrated to new media on a regular basis at recurring intervals in order to ensure its long-term preservation.

Which choice most effectively and concisely completes the sentence?

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Cevap: regularly to ensure

Cevap

regularly to ensure
The option 'regularly to ensure' is correct because it is the most concise choice that preserves the original meaning without introducing grammatical errors. It eliminates the redundant phrases 'on a regular basis' and 'at recurring intervals' and replaces the wordy 'in order to' with the simple infinitive 'to'.

Adım Adım Çözüm

1
Identify the redundancy in the underlined portion.
The phrases 'on a regular basis' and 'at recurring intervals' both mean the same thing, expressing a repeating schedule. Having both in the sentence is redundant.
ACT English tests reward conciseness and clarity, so redundant expressions must be eliminated.
2
Evaluate the remaining choices for grammatical correctness and conciseness.
The option that changes the phrase to 'regularly. In order to ensure' creates an ungrammatical sentence fragment. The option with 'regularly, this ensures' creates a comma splice by separating two independent clauses with only a comma. The option with 'regularly to ensure' resolves the redundancy and connects the clauses grammatically.
Eliminating grammatically incorrect distractors ensures the final choice is both concise and standard written English.

Anahtar Kavram

Eliminating redundancy involves removing repetitive words or phrases that express the same meaning twice, while keeping the sentence grammatically correct.
Tahmini Süre:1m 0s
Soru 1265Soru

In Barcelona, Spain, several architectural masterpieces designed by Antoni Gaudí draw millions of visitors each year. The basilica of La Sagrada Família , which is Gaudí’s most famous work, features towering spires and intricate facades. Construction on this iconic structure began in 1882 and remains unfinished to this day.

Which option represents the most grammatically correct punctuation for the underlined portion of the passage?

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Cevap: NO CHANGE

Cevap

The correct option is 'NO CHANGE' because it properly uses a pair of commas to set off the nonessential relative clause.
The correct option preserves the original punctuation, which uses a pair of commas to enclose the nonessential relative clause. Because 'La Sagrada Família' is a specific noun, the relative clause starting with 'which' is nonessential and must be set off with commas on both sides.

Adım Adım Çözüm

1
Determine if the underlined clause is essential (restrictive) or nonessential (nonrestrictive) to the meaning of the sentence.
The clause 'which is Gaudí’s most famous work' provides extra, nonessential information about the already identified noun 'the basilica of La Sagrada Família'.
Nonessential information must be set off from the rest of the sentence by punctuation (usually commas), whereas essential information must not.
2
Select the correct punctuation to set off this nonessential clause.
A matching pair of commas—one before 'which' and one after 'work'—is required to isolate the nonessential clause. Semicolons cannot be used here because they create sentence fragments when separating dependent clauses.
This maintains the grammatical flow of the sentence, allowing the subject 'The basilica of La Sagrada Família' to connect smoothly to the verb 'features' once the parenthetical information is removed.

Anahtar Kavram

Commas with Nonessential and Parenthetical Elements
Tahmini Süre:1m 0s
Soru 1266Soru

[1] Located on the remote Norwegian island of Spitsbergen, the Svalbard Global Seed Vault serves as a secure backup for the world's crop diversity. [2] The facility is built deep inside a sandstone mountain, where permafrost and thick rock ensure that the seed samples remain frozen even without electricity. [3] This isolated location offers excellent protection against political conflicts, natural disasters, and system failures. [4] Interestingly, Spitsbergen is also home to a thriving population of polar bears, which are well-adapted to the harsh Arctic climate. [5] By storing duplicates of seeds from genebanks worldwide, the vault plays a crucial role in safeguarding global food security against future agricultural crises.

The writer is considering deleting Sentence 4 from the passage. Should the writer make this deletion?

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Cevap: Yes, because the sentence interrupts the paragraph's focus on the security and function of the seed vault by introducing irrelevant information about local wildlife.

Cevap

Yes, because the sentence interrupts the paragraph's focus on the security and function of the seed vault by introducing irrelevant information about local wildlife.
The correct answer is the option stating that the sentence should be deleted because it interrupts the paragraph's focus on the security and function of the seed vault by introducing irrelevant information about local wildlife. The main focus of the paragraph is the secure storage of crop diversity, and details about polar bear populations are off-topic and disrupt the unity of the passage.

Adım Adım Çözüm

1
Identify the primary topic and focus of the paragraph.
The paragraph explains the location, physical security, and global importance of the Svalbard Global Seed Vault.
Understanding the main idea is essential for determining if a specific sentence belongs in the text.
2
Analyze the function of Sentence 4 within the paragraph.
Sentence 4 describes the presence of polar bears on the island of Spitsbergen.
This step determines whether the sentence supports, transitions, or distracts from the main topic.
3
Evaluate the relevance of the polar bear detail to the seed vault's security and purpose.
The detail about polar bears is tangential and does not support the discussion of crop diversity, physical fortification, or global food security.
Identifying that the sentence is irrelevant leads to the conclusion that it should be deleted.

Anahtar Kavram

Evaluating the relevance of a sentence to the main focus of a paragraph to determine whether it should be added or deleted.
Soru 1267Soru

The writer wants to organize the sentences below to logically present the chronological steps and historical significance of the accidental discovery of YInMn Blue. What is the most logical order for these sentences?

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Cevap

The correct sequence begins with the introduction of the 2009 experiment, followed by the description of the heat reaction, then the realization of the pigment's durability, and concludes with its naming and historical significance.
The correct order follows a clear chronological and logical progression. It starts by introducing the initial experiment in 2009, followed by the immediate reaction to the heating process, then details the physical properties observed by the chemist, and concludes with the naming and historical impact of the pigment.

Adım Adım Çözüm

1
Identify the introductory sentence.
The sentence introducing the initial 2009 experiment by Mas Subramanian must come first.
It establishes the timeline, the research group, and the original objective of the study.
2
Identify the direct outcome of the experiment.
The sentence describing the surprise transformation under intense heat must follow.
It details what actually happened during the experiment described in the first step.
3
Determine the immediate evaluation of the outcome.
The sentence about Subramanian's realization of the unique crystal structure is placed third.
It explains the next logical step: testing and analyzing the properties of the unexpected blue material.
4
Identify the concluding summary.
The sentence naming the pigment 'YInMn Blue' and describing its historical context goes last.
It wraps up the narrative by naming the creation and summarizing its long-term significance.

Anahtar Kavram

Organizing sentences to establish chronological coherence and meet rhetorical goals.
Soru 1268Soru

A student is writing a paragraph about the invention of the chocolate chip cookie. Arrange the following sentences in the most logical order to create a coherent paragraph that begins with a clear introduction and ends with an effective conclusion.

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Cevap

The correct order begins with the introduction of Ruth Wakefield's accidental creation, followed by her running out of baker's chocolate, then her substituting chopped semi-sweet chocolate, and concluding with the chocolate pieces remaining intact to create a new favorite treat.
The correct order follows a logical and chronological flow. The paragraph begins with an introduction to Ruth Wakefield and her creation. The middle sentences describe the chronological process of running out of baker's chocolate and substituting semi-sweet chocolate. The final sentence wraps up the narrative by detailing the final outcome of the baking process, serving as a clear conclusion.

Adım Adım Çözüm

1
Identify the introductory sentence.
The sentence introducing Ruth Wakefield and her famous accidental creation is identified as the opening sentence.
An effective paragraph must begin with an introduction that establishes the main subject before describing specific events.
2
Establish the chronological order of the body sentences.
The sentence about running out of baker's chocolate is followed by the sentence explaining the substitution of semi-sweet chocolate.
The narrative must flow logically from identifying a problem to taking an action to resolve it.
3
Identify the concluding sentence.
The sentence describing the final baked result and its lasting status as a staple is placed at the end.
An effective conclusion resolves the narrative conflict and summarizes the overall outcome or significance of the topic.

Anahtar Kavram

Opening and Concluding Sentences
Soru 1269Soru

[1]
_____________________________. For decades, the vast wetlands were viewed as nothing more than a useless, disease-ridden swamp that hindered progress. Under the banner of development, developers and politicians sought to drain the land to build farms and cities. This widespread perception persisted until Marjory Stoneman Douglas published her seminal book, *The Everglades: River of Grass*, in 1947. Her writing completely redefined the region not as a stagnant marsh, but as a dynamic, free-flowing river crucial to Florida's ecological survival.

[2]
Douglas’s advocacy went far beyond the page. She founded the Friends of the Everglades, mobilizing citizens to fight against destructive projects such as a proposed jetport in the middle of the wetlands. Her efforts helped secure the preservation of the unique habitat, which is home to rare species like the Florida panther and the West Indian manatee. Today, her work remains a foundational pillar of modern wetland conservation.

The writer wants to begin the passage with a sentence that introduces the main topic and sets up the discussion of how public perception of the Everglades shifted. Which choice best accomplishes this goal?

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Cevap: Before the mid-twentieth century, the Florida Everglades were widely misunderstood and actively targeted for destruction.

Cevap

Before the mid-twentieth century, the Florida Everglades were widely misunderstood and actively targeted for destruction.
The statement about the historical misunderstanding and targeted destruction of the Everglades is correct because it is grammatically accurate and establishes the central focus of the passage, preparing the reader for the discussion of how public perception transitioned from seeing the area as a useless swamp to an ecosystem worth saving.

Adım Adım Çözüm

1
Analyze the passage to identify the central theme and the role of the introductory sentence.
The passage discusses the shift from viewing the Everglades as a useless swamp to recognizing its ecological importance, largely due to Marjory Stoneman Douglas's work.
This establishes that the correct introduction must set up the historical misunderstanding and targeted destruction of the wetlands.
2
Evaluate the choices for grammatical correctness.
The choice about developers wanting to drain the Everglades contains a comma splice, and the choice mentioning early developers' efforts contains a subject-verb agreement error.
Eliminating grammatically incorrect options ensures the final answer is grammatically sound.
3
Assess the remaining grammatically correct choices for rhetorical relevance.
The choice about the geographical acreage is off-topic, while the choice regarding historical misunderstanding directly sets up the main theme of the passage.
The correct choice must satisfy the specific rhetorical goal stated in the prompt.

Anahtar Kavram

Establishing Introductions and Thesis Statements
Tahmini Süre:1m 0s
Soru 1270Soru

Passage Excerpt:
Before the invention of radar, Britain’s coastlines were guarded by acoustic mirrors: massive, curved concrete structures designed to reflect and concentrate sound waves. Operators sat in front of these dishes with stethoscopes, listening intently for the distant drone of enemy aircraft engines. [1]

Which choice most effectively emphasizes the acoustic mirrors' scale and visual dominance on the landscape?

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Cevap: These towering concrete monoliths loomed over the flat coastal marshes, serving as imposing sentinels.

Cevap

These towering concrete monoliths loomed over the flat coastal marshes, serving as imposing sentinels.
The correct answer successfully uses descriptive imagery ('towering concrete monoliths loomed') and metaphors ('imposing sentinels') to capture the grand scale and visual presence of the acoustic mirrors against the flat coastal background, satisfying all aspects of the rhetorical goal while remaining grammatically correct.

Adım Adım Çözüm

1
Analyze the prompt to identify the specific rhetorical goal.
The goal is to emphasize the scale and visual dominance of the acoustic mirrors on the landscape.
Understanding the precise criteria of the prompt is essential for selecting the correct choice.
2
Evaluate the grammar and punctuation of each option.
The option containing 'they loomed over the landscape' is a comma splice because it joins two independent clauses without a coordinating conjunction or semicolon. The other options are grammatically correct.
Any option containing grammatical errors must be eliminated first.
3
Assess the remaining grammatically correct options against the rhetorical goal.
The option mentioning 'thirty feet tall' is too plain. The option describing 'several different shapes' focuses on utility and design. Only the option describing 'towering concrete monoliths' that 'loomed' and served as 'imposing sentinels' directly conveys both scale and visual dominance.
The correct choice must satisfy both grammatical correctness and the specific rhetorical criteria.

Anahtar Kavram

Meeting Specific Rhetorical Goals
Soru 1271Soru

Although the team had initially planned to examine multiple variables, the lead researcher decided to focus at the effects of temperature on the enzyme's stability. Which of the following is the most appropriate choice to replace the underlined portion?

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Cevap: focus on

Cevap

focus on
The correct answer is the option containing 'focus on' because the verb 'focus' idiomatically requires the preposition 'on' when describing the act of directing concentration or attention toward a specific subject, such as the effects of temperature.

Adım Adım Çözüm

1
Identify the verb in the underlined portion and the relationship it establishes with the following noun phrase.
The verb is 'focus', and it introduces 'the effects of temperature'.
This determines which preposition is required to establish the correct idiomatic relationship.
2
Evaluate the idiomatic combination of 'focus' with different prepositions to see which is correct.
The verb 'focus' requires the preposition 'on' when it means concentrating attention or effort on something.
Prepositional idioms are fixed and must match established usage.

Anahtar Kavram

Idiomatic Preposition Usage with Verbs
Soru 1272Soru

In the summer of 1967, postgraduate student Jocelyn Bell Burnell was analyzing data from a newly constructed radio telescope. She noticed a faint, repeating signal in the charts that pulsed with astonishing regularity. Due to the fact that the signals recurred at such highly periodic intervals of time, some astronomers initially wondered if they had detected a transmission from an extraterrestrial civilization.

Which option is the most effective choice for the underlined portion of the sentence?

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Cevap: Because the signals recurred periodically,

Cevap

Because the signals recurred periodically,
The correct choice is the most concise option. It correctly uses the subordinating conjunction 'Because' to link the cause to the main clause, and it avoids the redundancy of 'intervals of time' by using the adverb 'periodically.'

Adım Adım Çözüm

1
Identify wordiness and redundancy in the underlined portion.
The phrase 'Due to the fact that' is a wordy equivalent of 'Because,' and 'periodic intervals of time' is redundant because 'periodic' already means occurring at intervals of time.
ACT English questions require eliminating redundant and wordy phrasings.
2
Evaluate the options for conciseness and check for grammatical errors.
The option beginning with 'Because' is concise and grammatically correct. The option beginning with 'The signals' removes wordiness but joins two independent clauses with only a comma, resulting in a comma splice.
Eliminating wordiness must not introduce grammatical errors.

Anahtar Kavram

Eliminating Wordiness
Soru 1273Soru

In 1928, Scottish biologist Alexander Fleming returned to his laboratory and noticed that a mold had contaminated one of his petri dishes. This mold was a substance that possessed the ability to destroy the surrounding bacteria, leading to the discovery of penicillin.

Which of the following is the most effective replacement for the underlined portion of the sentence?

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Cevap: This mold destroyed

Cevap

The correct answer is the option stating 'This mold destroyed' because it expresses the action most concisely and directly without introducing redundancy or grammatical errors.
The option stating 'This mold destroyed' is the most direct and concise option. It correctly uses a simple active-voice verb to link the subject to its action without unnecessary words.

Adım Adım Çözüm

1
Identify the relationship between the subject ('This mold') and the action ('destroying the bacteria').
The subject directly performs the action of destroying.
This helps determine if a direct active verb can replace the wordy phrasing.
2
Evaluate the choices for conciseness and grammatical correctness.
'This mold destroyed' is the shortest and most direct option, while others are wordy, redundant, or create a fragment.
ACT English tests reward the most concise option that is grammatically correct and preserves the original meaning.

Anahtar Kavram

Eliminating Wordiness
Soru 1274Soru

In 1948, Bernard Silver and Norman Joseph Woodland set out to design a system that could automatically read product information at checkout. Their initial design, which was inspired by Morse code, used a series of [underlined_start]concentric circular rings that formed circles, but this[underlined_end] pattern was prone to smudging during printing.

Which choice most clearly and concisely presents the underlined portion of the sentence?

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Cevap: concentric rings, but this

Cevap

concentric rings, but this
The correct option is the most concise choice that avoids redundancy and maintains proper punctuation. The term 'concentric rings' conveys the full meaning without repeating 'circular' or 'that formed circles' (as concentric rings are inherently circular). The coordinating conjunction 'but' correctly and logically connects the two clauses.

Adım Adım Çözüm

1
Identify the redundancy in the underlined portion.
The original phrasing contains 'concentric,' 'circular,' and 'rings that formed circles,' which all repeat the idea of circles. This can be reduced to just 'concentric rings.'
ACT English requires the most concise wording that retains the original meaning without adding repetitive information.
2
Evaluate the grammar and punctuation connecting the two clauses.
The sentence consists of two independent clauses: the first ends with 'concentric rings' and the second begins with 'this pattern was prone...' To connect them, we need a comma followed by a coordinating conjunction (like 'but').
Using just a comma results in a comma splice, and using 'Although' starts a dependent clause that creates a fragment.

Anahtar Kavram

Eliminating Redundancy
Soru 1275Soru

In ancient Rome, salt was so valuable that it was sometimes used as a form of currency. Roman soldiers were paid in salt, or given a stipend to purchase it, which is the origin of the modern word *salary*. This precious commodity was essential not only for flavoring food but also for preserving meat in an era long before refrigeration.

[1] Indeed, the economic value of salt made it a highly sought-after import across the Mediterranean. It was offered to the gods during religious sacrifices to ensure purity and favor. Furthermore, sharing salt with a guest was a gesture of friendship and trust, establishing a bond that could not be easily broken.

Which choice provides the most effective transition from the preceding paragraph?

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Cevap: Despite its primary role as a practical and economic resource, salt also possessed a sacred dimension in Roman daily life.

Cevap

The option that begins with 'Despite its primary role' is the correct answer.
The correct option establishes a clear connection between the first paragraph's focus on the economic and practical uses of salt and the second paragraph's focus on its religious and symbolic value in Roman life.

Adım Adım Çözüm

1
Analyze the main idea of the first paragraph.
The first paragraph focuses on the practical and economic value of salt in ancient Rome, including its use as currency and for food preservation.
Understanding the preceding context is essential to determine what the transition must connect from.
2
Analyze the main idea of the second paragraph.
The second paragraph discusses the cultural, religious, and symbolic significance of salt, such as its role in sacrifices and friendship.
Understanding the succeeding context is essential to determine what the transition must connect to.
3
Evaluate the choices based on both grammatical correctness and transition effectiveness.
The option beginning with 'Despite its primary role' is grammatically correct and explicitly links 'practical and economic resource' (from the first paragraph) to 'sacred dimension' (setting up the second paragraph). The other options contain grammatical errors (comma splice, tense shift) or fail to transition logically.
Standard ACT questions test both grammar and rhetorical strategy; eliminating choices with grammatical errors and choosing the one that best connects the ideas yields the correct answer.

Anahtar Kavram

Selecting transitional sentences that bridge paragraphs by linking preceding and succeeding ideas.
Soru 1276Soru

Dendrochronologists analyze the annual growth rings of ancient trees to reconstruct past climate patterns. Because these records provide a chronological history of the environment that is arranged in order of time, they allow researchers to map centuries of precipitation levels.

Which choice most effectively and concisely writes the underlined portion of the sentence?

Cevabı ve açıklamayı göster

Cevap: These chronological records allow

Cevap

The choice that reads 'These chronological records allow' is the correct answer because it removes the redundancy of 'arranged in order of time' and expresses the idea in a direct, grammatically complete sentence.
The option stating 'These chronological records allow' is correct because it is the most concise choice that preserves the original meaning without introducing any grammatical errors. It eliminates the redundant phrase 'arranged in order of time,' which repeats the definition of 'chronological,' and simplifies the wordy structure of the original sentence.

Adım Adım Çözüm

1
Identify the redundant phrase in the underlined portion.
The phrase 'arranged in order of time' is identified as redundant with the adjective 'chronological,' since both terms express the same concept of temporal ordering.
To meet the ACT standards for conciseness, repetitive words or phrases that mean the same thing must be eliminated.
2
Evaluate the remaining choices for grammatical correctness.
The choice beginning with 'These chronological records, which...' creates a fragment because it lacks a main verb. The choice 'These records provide..., they allow...' creates a comma splice by joining two independent clauses with only a comma. The choice 'These chronological records allow' is grammatically correct and complete.
The correct choice must not only eliminate redundancy but also form a grammatically correct sentence structure.

Anahtar Kavram

Eliminating redundant words or phrases while maintaining proper grammatical structure (avoiding fragments and comma splices).
Soru 1277Soru

The following paragraphs are from an essay about Marie Tharp's mapping of the ocean floor. To make the essay flow most logically, in what order should the paragraphs be placed?

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Cevap

The paragraphs should be placed in the order: first, the paragraph describing the historical assumption of a flat ocean floor; second, the paragraph introducing Marie Tharp's sonar analysis and creation of topographic profiles; and third, the paragraph explaining the impact of this groundbreaking map on continental drift theory.
The correct sequence begins with the paragraph establishing the historical belief that the seafloor was a featureless plain. The next paragraph transitionally shifts focus using 'however' to describe Marie Tharp's mid-1950s research and her creation of topographic profiles. The final paragraph logically follows by using 'This groundbreaking map' to refer back to Tharp's profiles and explain the map's role in supporting plate tectonics.

Adım Adım Çözüm

1
Identify the introductory paragraph that establishes the context or baseline belief.
The paragraph starting with 'For centuries' describes the historical view that the ocean floor was a flat, featureless plain.
This establishes the status quo before any discoveries were made.
2
Look for transition words or phrases that signal a shift away from this status quo.
The paragraph starting with 'In the mid-1950s, however' uses the contrast transition 'however' to introduce Marie Tharp's research and the discovery of a mountain range, contradicting the flat seafloor theory.
The word 'however' directly connects to and refutes the idea of a featureless seabed established in the first paragraph.
3
Identify the paragraph that builds upon the details of the discovery.
The paragraph starting with 'This groundbreaking map' references the map created in the previous step ('topographic profiles') and explains its larger scientific implications.
The demonstrative adjective 'This' in 'This groundbreaking map' requires a prior mention of mapmaking, which occurs at the end of the second paragraph.

Anahtar Kavram

Paragraph-Level Transitions
Soru 1278Soru

In 1856, eighteen-year-old chemist William Henry Perkin accidentally created mauveine, the world’s first synthetic aniline dye, while attempting to synthesize a treatment for malaria. Recognizing the commercial potential of the vibrant purple substance, Perkin quickly patented his process and established a factory to mass-produce the dye. Indigo, another highly valued natural dye, was later successfully synthesized by German chemist Adolf von Baeyer in 1883. Perkin’s inexpensive synthetic dye revolutionized the fashion industry, making the color purple—previously reserved only for royalty—widely accessible to the general public.

The writer is considering deleting the underlined sentence from the passage. Should the writer make this deletion?

Cevabı ve açıklamayı göster

Cevap: Yes, because the sentence interrupts the paragraph's focus on Perkin's discovery of mauveine and its impact.

Cevap

Yes, because the sentence interrupts the paragraph's focus on Perkin's discovery of mauveine and its impact.
The correct choice is the option that recommends deleting the sentence because it interrupts the paragraph's focus on Perkin's discovery of mauveine and its impact. The passage details Perkin's accidental synthesis of mauveine and how it popularized the color purple. The sentence about Adolf von Baeyer synthesizing indigo in 1883 is a tangential detail that disrupts the paragraph's focus on Perkin's mauveine.

Adım Adım Çözüm

1
Determine the main topic of the paragraph.
The paragraph centers on William Henry Perkin's accidental discovery of the purple dye mauveine and how it revolutionized the fashion industry by making the color accessible.
Establishing the main focus is necessary to evaluate whether other details are relevant to this focus.
2
Evaluate the relevance of the underlined sentence to the main topic.
The underlined sentence discusses Adolf von Baeyer's synthesis of indigo in 1883, which introduces a different chemist and a different dye.
This step helps identify if the sentence provides essential context or if it is a distraction.
3
Determine the correct deletion decision and the reasoning behind it.
Since the sentence shifts the focus away from Perkin and mauveine, it should be deleted. The correct option is the one stating that the deletion should occur because the sentence interrupts the focus on Perkin's discovery and its impact.
This step matches the analysis to the correct multiple-choice option.

Anahtar Kavram

Evaluating Relevance for Adding or Deleting Content
Soru 1279Soru

In his latest research paper, the marine biologist explained that the migration patterns of humpback whales are similar with those of blue whales, suggesting a shared evolutionary history. Which of the following is the best replacement for the underlined portion?

Cevabı ve açıklamayı göster

Cevap: similar to

Cevap

similar to
The correct answer is 'similar to' because the adjective 'similar' must be paired with the preposition 'to' to form the correct idiomatic phrase when comparing two things.

Adım Adım Çözüm

1
Identify the comparison being made in the sentence.
The sentence compares 'the migration patterns of humpback whales' with 'those of blue whales' using the adjective 'similar'.
Recognizing the comparison points to the need for a preposition to link 'similar' to the second object of comparison.
2
Evaluate the idiomatically correct preposition that follows 'similar'.
The standard English idiom for comparing things that are alike is 'similar to'.
Using other prepositions such as 'with', 'from', or comparison words like 'than' violates idiomatic English conventions.

Anahtar Kavram

Idiomatic Prepositions
Soru 1280Soru

In 1941, Swiss engineer George de Mestral went for a walk in the woods with his dog. Upon returning, he noticed that burdock seeds had clung to his clothes and his dog's fur. Under a microscope, he saw that the seeds were covered in tiny hooks that attached to the small loops in the fabric. This discovery led to the invention of Velcro, which is a fastening system that is composed of two components: a hook side and a loop side.

Which of the following choices best replaces the underlined portion of the sentence?

Cevabı ve açıklamayı göster

Cevap: a fastening system consisting of two components: a hook side and a loop side.

Cevap

a fastening system consisting of two components: a hook side and a loop side.
The correct option replaces the wordy relative clause with a concise appositive phrase ('a fastening system consisting of...'). This expresses the same meaning directly and efficiently without violating any rules of grammar.

Adım Adım Çözüm

1
Analyze the underlined portion for wordiness and structural efficiency.
The original phrasing 'which is a fastening system that is composed of' contains excessive relative pronouns ('which is', 'that is') and a passive verb phrase ('is composed of').
Identifying unnecessary helper verbs and relative pronouns is key to simplifying sentences on the ACT.
2
Evaluate the remaining choices for conciseness and grammatical correctness.
The correct choice replaces the wordy clause with a concise appositive phrase starting with 'a fastening system consisting of'. The other choices either preserve the wordiness or introduce grammatical errors like a comma splice or sentence fragment.
The correct answer on the ACT must be both grammatically correct and the most concise option available.

Anahtar Kavram

Eliminating Wordiness
ÖncekiSayfa 64 / 278Sonraki
Tüm alıştırma soruları — ACT | Examkin