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Zorluk: ZorRun-on Sentences and Comma Splices

The following passage contains an underlined portion.

Astrophysicists use gravitational lensing to map the distribution of dark matter in distant galaxy clusters. When light from a background galaxy passes near a massive foreground cluster, the cluster’s gravity acts like a giant lens. This bends and distorts the light into arcs and multiple images, consequently, these cosmic mirages reveal the total mass of the lens, including both visible stars and invisible dark matter. By analyzing the distortions, researchers can construct detailed dark matter maps.

Which option best replaces the underlined portion to ensure the sentence is grammatically correct?

  1. A
    NO CHANGE
  2. This bends and distorts the light into arcs and multiple images; consequently, these cosmic miragesCevap
  3. C
    This bends and distorts the light into arcs and multiple images. Consequently, because these cosmic mirages
  4. D
    This bends and distorts the light, that is shaped into arcs and multiple images; consequently, these cosmic mirages

Cevap

The option that uses a semicolon and the transitional adverb 'consequently' to separate the two independent clauses: 'This bends and distorts the light into arcs and multiple images; consequently, these cosmic mirages'.
The correct option uses a semicolon to separate two independent clauses: the first clause describes how the light is bent and distorted, and the second clause explains what these cosmic mirages reveal. When a conjunctive adverb like 'consequently' is used to introduce the second independent clause, a semicolon must precede it, and a comma must follow it. This structure resolves the comma splice without introducing new errors.

Adım Adım Çözüm

1
Identify the two main clauses in the underlined portion and the surrounding text.
The first clause is 'This bends and distorts the light into arcs and multiple images' (independent), and the second clause is 'these cosmic mirages reveal the total mass...' (independent).
Understanding the grammatical status of the clauses helps determine what punctuation is needed to join or separate them.
2
Evaluate the punctuation joining the two independent clauses.
Joining two independent clauses with only a comma before the conjunctive adverb 'consequently' creates a comma splice.
Independent clauses must be separated by a period, a semicolon, or a comma coupled with a coordinating conjunction.
3
Evaluate the remaining options to find the correct correction.
The option with a semicolon before 'consequently' and a comma after it correctly separates the two independent clauses. The option starting with 'Consequently, because...' creates a dependent clause fragment. The option placing a comma before 'that is shaped...' incorrectly punctuates a restrictive relative clause.
A semicolon is the appropriate mark to link related independent clauses, while subordinating conjunctions and misplaced restrictive commas create fragments or punctuation errors.

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Run-on Sentences and Comma Splices
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Run-on Sentences and Comma Splices

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