Examkin

Soru

Zorluk: OrtaColons

To maximize crop yields in urban areas, vertical farms rely on sophisticated automated systems: LED lighting, nutrient-rich mist, and climate sensors.

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

  1. systems: LED lighting,Cevap
  2. B
    systems, that include: LED lighting,
  3. C
    systems; LED lighting,
  4. D
    systems, they include LED lighting,

Cevap

The correct option is the one that leaves the sentence unchanged, using a colon after 'systems' and before 'LED lighting' to introduce the list.
The correct answer properly uses a colon after the independent clause 'To maximize crop yields in urban areas, vertical farms rely on sophisticated automated systems' to introduce the list of items 'LED lighting, nutrient-rich mist, and climate sensors.' Under ACT English guidelines, a colon is the standard punctuation mark to introduce a list of items when it follows a complete sentence.

Adım Adım Çözüm

1
Analyze the clause preceding the underlined portion.
The clause 'To maximize crop yields in urban areas, vertical farms rely on sophisticated automated systems' can stand alone as a complete sentence, making it an independent clause.
A colon can only be used if it is preceded by a complete, independent clause.
2
Examine the phrase that follows the underlined portion.
The phrase 'LED lighting, nutrient-rich mist, and climate sensors' is a list of three noun phrases that elaborates on the 'automated systems.'
A colon is the appropriate punctuation mark to introduce a list or explanation following an independent clause.
3
Evaluate the grammar of the remaining choices to eliminate incorrect alternatives.
The choice using 'systems, that include:' incorrectly places a colon after a verb. The choice using a semicolon incorrectly separates an independent clause from a noun phrase fragment. The choice using 'systems, they include' creates a comma splice by joining two independent clauses with only a comma.
Correct punctuation must avoid introducing fragments after semicolons, placing colons after verbs, or creating comma splices.

Anahtar Kavram

Use of colons to introduce lists after an independent clause
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Konular

Colons

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