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Zorluk: OrtaSentence-Level Transitions

Passage

Scientists had long believed that all marine life ultimately depended on sunlight for energy. . Consequently, the ecosystems surrounding hydrothermal vents rely on chemosynthesis, a process that requires no light.

Which of the following choices best establishes a logical and grammatically correct transition between the two sentences?

  1. A
    NO CHANGE
  2. . However,Cevap
  3. C
    , however,
  4. D
    . Furthermore,

Cevap

The option that begins a new sentence with the contrast transition '. However,' is correct.
The correct option correctly identifies the contrast relationship between the two sentences and uses the appropriate punctuation. The first sentence states that scientists believed all life depends on sunlight, whereas the second sentence presents the opposite reality: hydrothermal vent ecosystems thrive in the dark. Thus, a contrast transition is needed. Starting a new sentence with a capital 'H' and a comma prevents a comma splice.

Adım Adım Çözüm

1
Analyze the relationship between the two sentences.
The first sentence describes a historical scientific belief: that all marine life relies on sunlight. The second sentence describes a contradictory fact: that hydrothermal vent ecosystems rely on chemosynthesis without light.
Identifying the logical relationship helps determine the correct type of transition word needed.
2
Evaluate the transition word category.
Since the second sentence contradicts the first, a contrast transition (like 'however') is required. Cause-and-effect transitions (like 'consequently') and addition transitions (like 'furthermore') are incorrect.
Eliminating options with the incorrect logical relationship narrows down the choices.
3
Check the punctuation and sentence structure of the remaining choices.
Joining two independent clauses with a comma and a conjunctive adverb like 'however' creates a grammatically incorrect comma splice. Starting a new sentence with '. However,' is grammatically correct.
Ensuring the choice follows standard rules of punctuation and sentence structure.

Anahtar Kavram

Selecting logical transition words that fit the context while avoiding grammatical errors like comma splices.
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Konular

Sentence-Level Transitions

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