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Zorluk: OrtaRun-on Sentences and Comma Splices

Glaciologists studying subglacial Lake Mercer in Antarctica deployed a customized hot-water drill to penetrate over one thousand meters of ice. They successfully recovered sediment cores containing ancient microbial forms, however, maintaining sterile conditions throughout the drilling process presented unprecedented technological challenges. Subsequent analysis revealed viable bacteria that had survived in extreme isolation for thousands of years.

Which choice produces a grammatically correct sentence that properly joins the two independent clauses?

  1. A
    NO CHANGE
  2. forms; however, maintainingCevap
  3. C
    forms; because maintaining
  4. D
    forms, maintaining

Cevap

The option containing 'forms; however, maintaining' is correct because a semicolon is required to separate two independent clauses when joined by a conjunctive adverb like 'however'.
The correct choice places a semicolon after the first independent clause ('forms') and follows the conjunctive adverb ('however') with a comma. This correctly resolves the comma splice while preserving the logical relationship between the two complete sentences.

Adım Adım Çözüm

1
Identify the clause boundary and structure
The text contains two independent clauses: 'They successfully recovered sediment cores containing ancient microbial forms' and 'maintaining sterile conditions throughout the drilling process presented unprecedented technological challenges.'
Both clauses contain complete subjects and verbs and can stand alone as complete thoughts.
2
Evaluate punctuation rules for conjunctive adverbs
When a conjunctive adverb such as 'however' connects two independent clauses, it must be preceded by a semicolon (or a period) and followed by a comma.
A single comma combined with 'however' is insufficient to join two independent clauses and results in a comma splice.

Anahtar Kavram

Joining Independent Clauses with Conjunctive Adverbs
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Konular

Run-on Sentences and Comma Splices

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