Examkin

Sentence Structure and Formation

444 soru

Tüm türler444Çoktan seçmeli368Sıralama15Boşluk doldurma61
Soru 241Soru →

For decades, marine biologists have searched the abyssal plain for bioluminescent organisms, hoping to understand how these creatures adapt to extreme pressure. Because sunlight cannot penetrate these depths, the animals rely on chemical reactions to produce light, this phenomenon serves a variety of purposes. For instance, some species use light to attract prey, while others use it to escape predators.

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

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Cevap: produce light. This phenomenon serves

Cevap

The option that changes the punctuation to 'produce light. This phenomenon serves' is correct because it successfully resolves the comma splice by dividing the two independent clauses into distinct, grammatically correct sentences.
The correct answer resolves the comma splice by placing a period between the first independent clause ('Because sunlight cannot penetrate these depths, the animals rely on chemical reactions to produce light') and the second independent clause ('This phenomenon serves a variety of purposes'). Both clauses are complete thoughts and can stand alone as separate sentences.

Adım Adım Çözüm

1
Identify the clause boundaries surrounding the underlined portion.
The text contains two distinct complete thoughts: 'Because sunlight cannot penetrate these depths, the animals rely on chemical reactions to produce light' and 'this phenomenon serves a variety of purposes.'
Locating where one independent clause ends and another begins is the first step in diagnosing run-on sentences and comma splices.
2
Analyze the punctuation currently connecting the two independent clauses.
The clauses are joined only by a comma.
Joining two independent clauses with a comma and no coordinating conjunction constitutes a comma splice, which is a grammatical error.
3
Evaluate the choices to find the one that separates or connects the clauses grammatically without creating fragments.
Using a period to split the text into two sentences correctly separates the two independent clauses, whereas using a subordinating conjunction or relative pronoun with a semicolon creates dependent clause fragments.
A period is a grammatically valid way to separate two independent clauses, resolving the comma splice without introducing new errors.

Anahtar Kavram

Identifying and correcting comma splices by separating independent clauses with appropriate punctuation.
Tahmini Süre:1m 0s
Soru 242Soru →

When learning to play the violin, students practice regularly to develop muscle memory. They learn how to hold the bow, position their fingers on the strings, and will read sheet music. Over time, these actions become second nature.

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

Cevabı ve açıklamayı göster

Cevap: read

Cevap

The correct option is the one that replaces the underlined text with 'read'. This choice maintains grammatical parallelism and verb tense consistency within the sentence.
The correct choice maintains consistency in verb tense and sentence construction. The sentence lists three actions that students learn how to perform: 'hold the bow,' 'position their fingers,' and 'read sheet music.' Since 'hold' and 'position' are in the base present form following the infinitive marker 'to,' the final verb in the list must also be in the base present form ('read') to maintain parallel structure.

Adım Adım Çözüm

1
Identify the verbs in the list to determine the established pattern.
The list contains the verbs 'hold' and 'position', which are both in the base present tense following 'learn how to'.
Recognizing the existing grammatical structure helps ensure the underlined portion maintains the same format.
2
Evaluate the underlined portion 'will read' for consistency.
The auxiliary verb 'will' shifts the construction to the future tense, breaking the parallelism with 'hold' and 'position'.
Identifying grammatical shifts is necessary to correct errors in sentence construction.
3
Select the option that matches the base present tense of 'hold' and 'position'.
The verb 'read' is in the base present tense and completes the list of parallel infinitive actions: 'learn how to hold... position... and read'.
Using 'read' maintains consistent construction and parallel structure throughout the sentence.

Anahtar Kavram

Maintaining parallel structure and avoiding shifts in construction within lists.
Soru 243Soru →

Deciphering Linear B, an ancient script found on clay tablets in Crete, presented a monumental challenge to twentieth-century linguists. Alice Kober painstakingly categorized the grammatical patterns she observed on the tablets, her work laid the foundation for Michael Ventris's eventual translation of the script. Sadly, Kober passed away before seeing the script fully deciphered, but her archives remain a testament to her scholarly rigor.

Which of the following choices best maintains the grammatical correctness of the sentence?

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Cevap: ; ultimately, her work laid the foundation for Michael Ventris's eventual translation of the script.

Cevap

The choice that uses a semicolon followed by the transitional adverb 'ultimately' and an independent clause is the correct answer.
The correct option resolves the comma splice by replacing the comma with a semicolon, which is appropriate for connecting two independent clauses ('Alice Kober painstakingly categorized...' and 'her work laid the foundation...'). The addition of the transitional adverb 'ultimately' correctly signals the long-term outcome of Kober's work.

Adım Adım Çözüm

1
Identify the grammatical structure of the clauses flanking the underlined portion.
The clause before the comma ('Alice Kober painstakingly categorized...') is an independent clause, and the clause after ('her work laid the foundation...') is also an independent clause.
To determine if the sentence contains a comma splice or run-on error.
2
Evaluate the options to find one that correctly joins two independent clauses without creating a fragment or punctuation error.
The option using a semicolon and the transitional adverb 'ultimately' ('...tablets; ultimately, her work laid...') correctly joins the clauses, whereas the other options create fragments or perpetuate the comma splice.
A semicolon is the appropriate punctuation mark to link two closely related independent clauses.

Anahtar Kavram

Connecting independent clauses with semicolons or coordinating conjunctions to avoid run-on sentences and comma splices.
Soru 244Soru →

In eleventh-century China, Bi Sheng crafted ceramic type characters, meanwhile, in thirteenth-century Korea, metal movable type was used to print state documents.

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

Cevabı ve açıklamayı göster

Cevap: while in thirteenth-century Korea, metal movable type

Cevap

while in thirteenth-century Korea, metal movable type
The correct option, 'while in thirteenth-century Korea, metal movable type', uses the subordinating conjunction 'while' to create a dependent clause. This dependent clause is correctly joined to the preceding independent clause with a comma, establishing a logical contrast without creating a comma splice.

Adım Adım Çözüm

1
Analyze the grammatical structure of the original sentence and identify if the clauses are independent or dependent.
The two clauses ('In eleventh-century China, Bi Sheng crafted ceramic type characters' and 'meanwhile, in thirteenth-century Korea, metal movable type was used to print state documents') are both independent clauses.
This helps determine if coordination or subordination is needed to connect them correctly.
2
Evaluate the conjunctions and punctuation used to link the clauses in each option.
The original text uses the conjunctive adverb 'meanwhile' with only a comma, creating a comma splice. The option starting with 'while' uses a subordinating conjunction, which correctly turns the second clause into a dependent clause and connects it to the first clause with a comma.
A dependent clause starting with a subordinating conjunction can be joined to an independent clause using a comma.

Anahtar Kavram

Subordination and Coordination
Soru 245Soru →

In 1856, eighteen-year-old chemist William Henry Perkin was attempting to synthesize quinine, a treatment for malaria. While washing out a beaker containing a failed experiment. He noticed that the dark, sludgy residue left behind dissolved into a beautiful purple solution that could dye silk.

Which of the following options is the most grammatically correct choice for the underlined portion of the sentence?

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Cevap: Washing out a beaker containing a failed experiment, he noticed

Cevap

The grammatically correct choice is the option that converts the opening phrase into a participial modifier and connects it with a comma to the main clause: 'Washing out a beaker containing a failed experiment, he noticed'.
The correct option replaces the subordinating conjunction 'while' with a participial phrase ('Washing out a beaker...'), which functions as an introductory modifier that properly attaches to the main clause ('he noticed...') with a comma. This creates a single, grammatically complete sentence.

Adım Adım Çözüm

1
Identify the grammatical components of the original underlined portion and the surrounding text.
The first clause 'While washing out a beaker containing a failed experiment' is a dependent clause, and the second clause 'He noticed...' is an independent clause.
A dependent clause cannot stand alone as a complete sentence.
2
Evaluate the options to find a choice that resolves the fragment while maintaining a correct relationship between the clauses.
Using a comma to connect a participial phrase to the main clause is correct, whereas a semicolon requires two independent clauses and a comma splice must be avoided.
A participial phrase acts as an introductory modifier and must be joined to the independent clause it modifies by a comma.

Anahtar Kavram

Sentence fragments occur when a dependent clause or phrase is punctuated as a complete sentence. They can be corrected by joining them to an independent clause using appropriate punctuation or modifying their structure.
Tahmini Süre:1m 0s
Soru 246Soru →

In the sentence below, the introductory participial phrase 'Running quickly to catch the bus' is a dangling modifier because it does not have a logical subject to modify. Complete the sentence by typing the correct pronoun in the blank so that the modifier logically describes the subject of the main clause.

Aşağıdaki boşlukları doldurun

Running quickly to catch the bus, dropped my keys on the sidewalk.
Cevabı ve açıklamayı göster

Cevap

I
The correct pronoun is 'I' because it refers to the person who was running to catch the bus and who dropped the keys. Placing 'I' as the subject of the main clause resolves the dangling modifier.

Adım Adım Çözüm

1
Identify the action in the introductory modifier.
The modifier 'Running quickly to catch the bus' describes an action performed by a person.
An introductory participial modifier must logically describe the subject of the main clause.
2
Determine the correct subject based on the context clue 'my keys'.
The possessive adjective 'my' indicates that the first-person pronoun 'I' is the subject who dropped the keys and was running.
Choosing the pronoun 'I' aligns the subject of the main clause with the action in the modifier, correcting the dangling modifier.

Anahtar Kavram

Misplaced and Dangling Modifiers
Soru 247Soru →

For centuries, Polynesian navigators traveled across thousands of miles of open ocean without any modern instruments. Instead of relying on compasses or maps, these sailors used the stars, ocean swells, and bird migration patterns to guide their canoes. This ancient system of wayfinding was highly reliable, it allowed them to colonize remote Pacific islands.

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

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Cevap: This ancient system of wayfinding was highly reliable; it allowed

Cevap

This ancient system of wayfinding was highly reliable; it allowed
The correct option correctly uses a semicolon to separate two closely related independent clauses ('This ancient system of wayfinding was highly reliable' and 'it allowed them to colonize remote Pacific islands') without any coordinating conjunctions.

Adım Adım Çözüm

1
Identify the clause structure of the original underlined portion.
The text contains two independent clauses: 'This ancient system of wayfinding was highly reliable' and 'it allowed them to colonize remote Pacific islands'.
Understanding clause boundaries is necessary to determine the correct punctuation needed to join them.
2
Analyze how the independent clauses are joined.
They are joined only by a comma, which is a comma splice error.
Independent clauses cannot be joined by a comma alone; they require a coordinating conjunction, a semicolon, or a period.
3
Evaluate the choices to find the option that correctly separates or joins the independent clauses without creating new grammatical errors.
The option containing 'highly reliable; it allowed' correctly uses a semicolon to link the two independent clauses. The options containing a semicolon followed by 'which' or a period followed by 'Because' both create dependent clause fragments.
A semicolon is a grammatically correct way to join two closely related independent clauses without any conjunctions.

Anahtar Kavram

Run-on Sentences and Comma Splices
Soru 248Soru →

After running three miles, the glass of cold water refreshed Marcus.

Which of the following versions of the underlined portion results in the most clear and grammatically correct sentence?

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Cevap: Marcus was refreshed by the glass of cold water

Cevap

Marcus was refreshed by the glass of cold water
The correct option places 'Marcus' immediately after the introductory modifying phrase 'After running three miles.' Since Marcus is the one who ran, this structure correctly aligns the modifier with the noun it modifies, making the sentence logical and grammatically complete.

Adım Adım Çözüm

1
Identify the introductory modifying phrase and determine what it describes.
The phrase 'After running three miles' describes an action performed by a person.
An introductory modifier must logically describe the noun that immediately follows the comma.
2
Check the subject of the main clause in each option to ensure it matches the modifying phrase.
The subject immediately following the comma must be 'Marcus' because a glass of water cannot run three miles.
Matching the modifier to the correct logical subject fixes the dangling modifier error.
3
Verify that the selected option does not introduce other grammatical errors such as sentence fragments or comma splices.
The option beginning with 'Marcus was refreshed' forms a complete, grammatically sound sentence without any punctuation or structure issues.
Eliminating options that create fragments or comma splices ensures syntactic correctness.

Anahtar Kavram

Introductory Dangling Modifiers
Tahmini Süre:45s
Soru 249Soru →

In the late nineteenth century, physicist Wallace Sabine revolutionized the field of architectural acoustics by introducing a mathematical formula to calculate reverberation time. Prior to his work, concert halls were constructed with little understanding of sound physics, resulting in unpredictable auditory qualities. Sabine’s research led to the design of Boston’s Symphony Hall, a venue widely considered an acoustic masterpiece, today, architects still consult his formulas to ensure optimal sound distribution.

Which of the following choices best replaces the underlined portion to make the sentence grammatically correct?

Cevabı ve açıklamayı göster

Cevap: masterpiece; today, architects

Cevap

The correct choice is the one that separates the two independent clauses with a semicolon and maintains the introductory word 'today'.
The correct choice correctly uses a semicolon to separate two closely related independent clauses. The first clause describes Sabine's research leading to the design of Symphony Hall, and the second clause describes how architects continue to use his formulas. Since these are both complete thoughts, a semicolon is an appropriate punctuation mark to link them without a coordinating conjunction.

Adım Adım Çözüm

1
Identify the two main clauses separated by the underlined portion.
The first clause is 'Sabine’s research led to the design of Boston’s Symphony Hall, a venue widely considered an acoustic masterpiece,' and the second clause is 'today, architects still consult his formulas to ensure optimal sound distribution.'
To determine the correct punctuation, we must identify whether the clauses being joined are independent, dependent, or a combination of both.
2
Analyze the grammatical structure of both clauses.
Both clauses contain a subject and a verb and express a complete thought, making them independent clauses.
Independent clauses must be separated by a period, a semicolon, or a comma followed by a coordinating conjunction (FANBOYS).
3
Evaluate the choices to find the one that correctly connects these two independent clauses without creating new grammatical errors.
Using a semicolon after 'masterpiece' correctly separates the two independent clauses. The comma after the introductory adverb 'today' is also appropriate.
Only the semicolon option correctly adheres to the rules of sentence structure for joining two independent clauses without introducing dependent-clause fragments.

Anahtar Kavram

Run-on Sentences and Comma Splices
Tahmini Süre:1m 0s
Soru 250Soru →

In 1962, marine biologist Rachel Carson published *Silent Spring*, a book that drew public attention to the environmental hazards of pesticides. The book became a bestseller, it also sparked a nationwide ban on DDT and inspired the creation of the US Environmental Protection Agency.

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

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Cevap: bestseller, and it also sparked a nationwide ban on DDT

Cevap

The option that reads 'bestseller, and it also sparked a nationwide ban on DDT' is correct because it uses a comma and the coordinating conjunction 'and' to properly connect two independent clauses.
The correct option correctly joins the two independent clauses using a comma and the coordinating conjunction 'and'. This avoids a comma splice and maintains the logical connection between the book's success and its societal impact.

Adım Adım Çözüm

1
Identify the clause structure of the sentence.
The sentence consists of two clauses: 'The book became a bestseller' and 'it also sparked a nationwide ban on DDT and inspired...'. Both clauses can stand alone as complete thoughts, making them independent clauses.
Determining whether clauses are independent or dependent is necessary to apply the correct punctuation and conjunction rules.
2
Evaluate the original sentence for coordination or subordination errors.
The original sentence joins two independent clauses with only a comma, which is a comma splice error.
Recognizing a comma splice helps eliminate the original phrasing and look for a correct coordination method.
3
Evaluate the choices to find the correct way to join the clauses.
Using a semicolon before 'because' creates a fragment; using a period before 'Which' creates a sentence fragment; using a comma combined with the coordinating conjunction 'and' properly joins the two independent clauses.
Testing the grammatical function of each choice ensures the sentence is structurally sound and avoids fragments or run-ons.

Anahtar Kavram

Subordination and Coordination
Tahmini Süre:1m 0s
Soru 251Soru →

To recover audio from fragile nineteenth-century wax cylinders, preservationists use a non-contact optical scanning system to map the grooves. A computer then reconstructs the sound, consequently, this digital restoration bypasses the physical wear caused by traditional playback styluses. By protecting the delicate wax from damage, this technology ensures that historical recordings can be preserved for future generations.

Which of the following options is the most grammatically correct replacement for the underlined portion of the passage?

Cevabı ve açıklamayı göster

Cevap: sound; consequently, this

Cevap

sound; consequently, this
The correct option properly uses a semicolon to separate two independent clauses. Because the clauses are connected by the conjunctive adverb 'consequently', a semicolon is required before the adverb and a comma is required after it.

Adım Adım Çözüm

1
Identify the clause structure of the sentence containing the underlined portion.
The sentence consists of two clauses: 'A computer then reconstructs the sound' and 'this digital restoration bypasses the physical wear caused by traditional playback styluses.' Both clauses have a subject and a verb and can stand alone as complete thoughts, making them independent clauses.
Determining clause type is essential for choosing the correct punctuation.
2
Evaluate the transition word 'consequently' connecting the two clauses.
'Consequently' is a conjunctive adverb, not a coordinating conjunction.
Conjunctive adverbs require specific punctuation (a semicolon or period before, and usually a comma after) when joining independent clauses.
3
Eliminate options that fail to properly join these two independent clauses.
The original phrasing in the passage creates a comma splice. The option with 'sound; consequently, which' makes the second clause dependent, creating a fragment. The option with 'sound. Consequently, because this' also turns the second clause into a fragment using the word 'because'.
Punctuation must preserve complete sentence structure and avoid run-ons, comma splices, or fragments.
4
Select the option that correctly separates the independent clauses.
The phrasing 'sound; consequently, this' uses a semicolon to separate the two independent clauses, followed by a comma after the conjunctive adverb.
This configuration is grammatically correct and logically sound.

Anahtar Kavram

Run-on Sentences and Comma Splices
Tahmini Süre:1m 0s
Soru 252Soru →

The chief restorer explained that preserving the ancient tapestry required not only maintaining a stable humidity level in the gallery but also to carefully clean the fragile fibers with a specialized vacuum.

Which of the following options best maintains the parallel structure of the sentence?

Cevabı ve açıklamayı göster

Cevap: carefully cleaning

Cevap

carefully cleaning
The correct answer maintains grammatical parallelism. The correlative conjunction 'not only... but also' links two elements. Since the first element is a gerund phrase ('maintaining a stable humidity level'), the second element must also be a gerund phrase. The phrase 'carefully cleaning' is a gerund phrase, which matches the structure of 'maintaining'.

Adım Adım Çözüm

1
Locate the correlative conjunction structure in the sentence, which is 'not only... but also'.
Identified the parallel elements linked by this structure.
Correlative conjunctions must connect grammatically identical elements.
2
Analyze the grammatical form of the first element in the pair.
The first element is 'maintaining a stable humidity level', which is a gerund phrase.
Understanding the first element's structure defines the required structure for the second element.
3
Evaluate the choices to find the one that uses a matching gerund phrase.
The option 'carefully cleaning' is a gerund phrase that fits perfectly after 'but also'.
This maintains parallel structure within the sentence.

Anahtar Kavram

Parallel Structure with Correlative Conjunctions
Soru 253Soru →

Determine the form of the verb 'expand' that correctly completes the sentence without introducing an inconsistent shift in grammatical construction.

Aşağıdaki boşlukları doldurun

To revitalize the downtown area, the city council proposed a series of urban renewal projects. The committee recommended both renovating the historic facade of the theater and the interior seating capacity. By implementing these modernizations, the city hopes to attract larger touring productions and boost local tourism.
Cevabı ve açıklamayı göster

Cevap

expanding
The correct answer is the gerund form 'expanding'. The sentence uses the correlative conjunction 'both... and' to connect two actions. The first action is introduced by the gerund 'renovating' ('renovating the historic facade'). To maintain grammatical parallelism and avoid an unnecessary shift in construction, the second action must also use a gerund ('expanding the interior seating capacity').

Adım Adım Çözüm

1
Identify the parallel structure established by the correlative conjunction 'both... and...'.
The first item in the parallel structure is the gerund phrase starting with the word 'renovating'.
Correlative conjunctions require the coordinated elements to share the same grammatical form to avoid a shift in construction.
2
Determine the required grammatical form for the second item in the coordinated structure.
The second item must also begin with a gerund (the '-ing' verb form acting as a noun).
Matching the gerund form 'renovating' with another gerund ensures grammatical consistency and parallelism.
3
Conjugate the verb 'expand' into its gerund form.
The gerund form of 'expand' is 'expanding'.
This form completes the coordinated phrase parallelly as 'both renovating... and expanding...'

Anahtar Kavram

Parallel Structure and Shifts in Construction
Tahmini Süre:1m 0s
Soru 254Soru →

Mycelial networks in temperate rainforests act as underground communication channels, connecting trees and sharing essential nutrients. While these fungal threads stretch across vast areas of the forest floor. They play a crucial role in maintaining forest health.

Which of the following options is the best correction for the underlined portion of the passage?

Cevabı ve açıklamayı göster

Cevap: Stretching across vast areas of the forest floor, these fungal threads

Cevap

The option that changes the construction to 'Stretching across vast areas of the forest floor, these fungal threads' is correct because it uses a modifying participial phrase followed by a comma and a complete independent clause, resolving the fragment without creating a comma splice or semicolon error.
The correct option is the phrase beginning with 'Stretching across...' because it changes the fragmented dependent clause into an introductory participial phrase that modifies 'these fungal threads'. This links the ideas together in a single, grammatically correct sentence.

Adım Adım Çözüm

1
Analyze the underlined portion and surrounding context to identify grammatical errors.
The original text features a dependent clause beginning with the subordinating conjunction 'While' that is punctuated as a complete sentence, which constitutes a sentence fragment.
Recognizing sentence boundaries and independent vs. dependent clauses is the first step in resolving sentence structure issues.
2
Evaluate the options to eliminate choices that introduce new grammatical errors.
The option containing the semicolon after the dependent clause beginning with 'Although' creates a semicolon fragment, while the option joining two independent clauses with only a comma creates a comma splice.
Eliminating grammatically incorrect distractors ensures the chosen option adheres to standard conventions of punctuation and sentence structure.
3
Identify the option that correctly establishes a complete, cohesive sentence.
The correct option uses a participial phrase to introduce the subject, resulting in a single, well-structured independent clause.
The correct structure integrates the introductory information smoothly as a modifier, forming a complete sentence.

Anahtar Kavram

Identifying and correcting sentence fragments, comma splices, and semicolon fragments to ensure correct sentence structure.
Tahmini Süre:1m 0s
Soru 255Soru →

Read the passage below and select the option that best corrects the underlined portion.

Urban planners design modern cities to be both functional and sustainable. They analyze traffic patterns and public transit <u>routes, they work closely</u> with civil engineers to improve general accessibility. Ultimately, their goal is to create communities that balance environmental responsibility with economic growth.

Which of the following choices best corrects the underlined portion of the passage?

Cevabı ve açıklamayı göster

Cevap: routes; they work closely

Cevap

routes; they work closely
The correct answer is the option that replaces the comma with a semicolon. The sentence contains two independent clauses: 'They analyze traffic patterns and public transit routes' and 'they work closely with civil engineers to improve general accessibility.' A semicolon is the correct punctuation to join these two independent clauses because it resolves the comma splice without introducing any subordinating words that would turn either clause into a fragment.

Adım Adım Çözüm

1
Identify the boundary between the two main ideas in the sentence.
The two clauses are 'They analyze traffic patterns and public transit routes' and 'they work closely with civil engineers to improve general accessibility.'
Determining where one complete thought ends and the next begins helps identify if a run-on or comma splice is present.
2
Determine the grammatical status of both clauses.
Both clauses contain a subject and a verb and can stand alone as complete sentences (independent clauses).
Independent clauses cannot be joined with just a comma; they require a coordinating conjunction, a semicolon, or separation into two sentences.
3
Evaluate the choices to find the one that correctly connects the two independent clauses without creating new grammatical errors.
The option containing a semicolon correctly connects two independent clauses. The options containing subordinating conjunctions create fragment errors.
A semicolon is a standard and grammatically correct way to join two independent clauses when no coordinating conjunction is used.

Anahtar Kavram

Run-on Sentences and Comma Splices
Tahmini Süre:45s
Soru 256Soru →

After analyzing the distinctive X-ray diffraction patterns of DNA, Rosalind Franklin's critical contribution to the discovery of the double helix was finally recognized by the scientific community.

Which of the following versions of the underlined portion is correct?

Cevabı ve açıklamayı göster

Cevap: Rosalind Franklin finally received recognition from the scientific community for her critical contribution to the discovery of the double helix.

Cevap

The correct option is the phrasing that changes the main subject of the sentence to 'Rosalind Franklin,' ensuring she is the logical actor of the introductory modifier, and avoids any fragment or comma splice errors.
The introductory phrase 'After analyzing the distinctive X-ray diffraction patterns of DNA' is a participial modifier. In standard written English, an introductory modifier must describe the subject of the main clause that immediately follows it. Because the original sentence uses 'Rosalind Franklin's critical contribution' as the subject, it implies that the contribution did the analyzing, which is illogical. The correct revision makes 'Rosalind Franklin' the subject of the main clause, making the relationship clear and logical.

Adım Adım Çözüm

1
Identify the logical performer of the action in the introductory modifier 'After analyzing the distinctive X-ray diffraction patterns of DNA.'
The person performing the analysis is Rosalind Franklin.
An introductory participial phrase must modify the subject of the main clause.
2
Check the main clause subject in each option to verify it matches the logical performer, ensuring the sentence remains grammatically complete and avoids comma splices.
The revision that makes 'Rosalind Franklin' the subject of a single complete independent clause is correct, while other options either retain the dangling modifier, create a fragment, or introduce a comma splice.
Only one option resolves the modifier error while maintaining correct sentence structure.

Anahtar Kavram

Misplaced and Dangling Modifiers
Soru 257Soru →

Looking through the telescope, the rings of Saturn were clearly visible to the astronomer.

Which of the following versions of the underlined portion results in a grammatically correct sentence?

Cevabı ve açıklamayı göster

Cevap: the astronomer clearly saw the rings of Saturn

Cevap

the astronomer clearly saw the rings of Saturn
The correct option resolves the dangling modifier by placing the logical subject—the astronomer—directly after the introductory phrase 'Looking through the telescope.' This makes it clear that the astronomer is the one looking through the telescope.

Adım Adım Çözüm

1
Identify the introductory phrase and its logical subject.
The phrase 'Looking through the telescope' describes an action that must be performed by a person (the astronomer), not an inanimate object (the rings of Saturn).
Introductory participial phrases must modify the subject of the main clause that immediately follows them.
2
Evaluate the choices to find the one that places the correct subject immediately after the comma.
The phrasing starting with 'the astronomer' places the correct subject in the proper position. We must also verify that this option is grammatically correct and does not introduce other errors like comma splices or fragments.
This ensures the sentence is clear, logical, and grammatically sound.

Anahtar Kavram

Dangling Modifiers
Soru 258Soru →

Preservationists working on medieval tapestries must exercise extreme caution. Exposure to moisture can cause fibers to swell and warp; therefore, humidity levels in exhibition galleries are strictly regulated. Modern conservation clinics, however, employ low-energy laser cleaning to remove decades of grime, this non-invasive technique vaporizes contaminants without damaging the fragile silk and wool threads.

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

Cevabı ve açıklamayı göster

Cevap: decades of grime; this non-invasive technique

Cevap

decades of grime; this non-invasive technique
The correct answer properly resolves the comma splice. The sentence consists of two independent clauses: the first ends with 'grime' and the second begins with 'this non-invasive technique'. A semicolon is the appropriate punctuation mark to separate these two closely related independent clauses without the need for coordinating conjunctions.

Adım Adım Çözüm

1
Identify the clause boundary and determine the grammatical status of the clauses.
The text before the underlined portion, 'Modern conservation clinics, however, employ low-energy laser cleaning to remove decades of grime,' is a complete independent clause. The text after the comma, 'this non-invasive technique vaporizes contaminants without damaging the fragile silk and wool threads,' is also a complete independent clause.
Recognizing the structure of the clauses is necessary to determine how they can be punctuated or connected.
2
Evaluate the original punctuation to check for errors.
The original phrasing uses only a comma to separate the two independent clauses. This is a comma splice, which is a grammatical error.
Identifying the comma splice shows that a change is required.
3
Evaluate the choices to find the one that correctly resolves the comma splice without introducing new errors.
Using a semicolon to separate the two independent clauses correctly fixes the splice. Adding 'because' after a semicolon makes the second clause dependent (a fragment). Adding 'and' and 'which' makes the second clause incomplete because it lacks a main verb.
This determines the single correct grammatical configuration.

Anahtar Kavram

Identifying and correcting comma splices and run-on sentences using appropriate punctuation such as semicolons.
Tahmini Süre:1m 0s
Soru 259Soru →

The following passage contains an underlined portion. Choose the option that best replaces this portion to ensure the sentence is grammatically correct.

Discovered in 1977, deep-sea hydrothermal vents support extraordinary ecosystems that thrive in complete darkness. Because these organisms cannot access sunlight, they must find alternative energy sources; consequently, they rely on chemosynthetic bacteria. These specialized microbes, which live in symbiosis with tube worms, convert toxic chemicals into usable organic <u>matter, they form</u> the foundation of a unique food web.

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

Cevabı ve açıklamayı göster

Cevap: matter, forming

Cevap

The correct choice is 'matter, forming', which uses a comma and a participial phrase to avoid a comma splice.
The correct option is 'matter, forming'. In the original sentence, the clause before the comma ('These specialized microbes... convert toxic chemicals into usable organic matter') and the clause after the comma ('they form the foundation of a unique food web') are both independent clauses. Separating them with only a comma results in a comma splice. Replacing the second independent clause with a participial phrase starting with the present participle 'forming' eliminates the subject 'they' and subordinates the clause, turning it into a modifying phrase. This resolves the comma splice grammatically and maintains a smooth flow.

Adım Adım Çözüm

1
Identify the clause boundary and structure of the sentence.
The sentence contains two main clauses: 'These specialized microbes... convert toxic chemicals into usable organic matter' and 'they form the foundation of a unique food web'.
Understanding the structure of the clauses helps determine if they are independent or dependent.
2
Determine if the clauses are independent.
Both clauses contain a subject and a verb and can stand alone as complete thoughts, making them independent clauses.
Two independent clauses cannot be joined by a comma alone (comma splice) or separated by a semicolon if one is modified into a fragment.
3
Evaluate the choices to fix the comma splice.
Using the option with 'matter, forming' changes the second clause into a dependent participial phrase modifying the main clause, which correctly resolves the comma splice.
A participial phrase does not require a coordinating conjunction and can be attached to an independent clause with a comma.

Anahtar Kavram

Avoiding comma splices by subordinating one of the independent clauses using a participial phrase.
Tahmini Süre:1m 0s
Soru 260Soru →

In the late nineteenth century, the invention of the safety bicycle revolutionized personal transportation. Earlier models featured a massive front wheel that made them difficult and dangerous to ride, the new design introduced equal-sized wheels and a chain drive. This innovation made cycling accessible to the general public. As a result, women in particular gained unprecedented mobility and independence.

Which choice best corrects the underlined portion of the passage?

Cevabı ve açıklamayı göster

Cevap: ride. The new design

Cevap

The correct choice is the one that replaces the comma with a period and capitalizes the next word: 'ride. The new design'.
The correct option separates the two independent clauses into two distinct sentences using a period and capitalizing the first letter of the next sentence. The first clause, describing the large front wheel of earlier bicycle models, and the second clause, describing the equal-sized wheels and chain drive of the new design, are both complete thoughts that must be separated by appropriate end punctuation.

Adım Adım Çözüm

1
Identify the two clauses separated by the underlined portion.
Clause 1: 'Earlier models featured a massive front wheel that made them difficult and dangerous to ride.' Clause 2: 'The new design introduced equal-sized wheels and a chain drive.'
Determining the clause types is necessary to identify the correct punctuation needed to join or separate them.
2
Evaluate the grammatical function of both clauses.
Both clauses contain a subject and a verb and express a complete thought, meaning they are both independent clauses.
Two independent clauses cannot be joined by a comma alone without a coordinating conjunction; doing so creates a comma splice.
3
Select the option that correctly separates or joins these two independent clauses.
Replacing the comma with a period creates two separate, grammatically complete sentences: 'Earlier models featured a massive front wheel that made them difficult and dangerous to ride. The new design introduced equal-sized wheels and a chain drive.'
A period is a grammatically correct way to resolve a comma splice by separating independent clauses.

Anahtar Kavram

Run-on Sentences and Comma Splices
Tahmini Süre:45s
ÖncekiSayfa 13 / 23Sonraki
Sentence Structure and Formation Alıştırma Soruları — ACT — Sayfa 13 | Examkin