Set 1: Transitions (Intermediate)
Explanation
PASSAGE
The deep ocean remains largely unexplored, with scientists estimating that over 80% of it has never been mapped or studied. New species are frequently discovered in these dark waters. _______ a 2022 expedition to the Mariana Trench identified three previously unknown species of fish.
Which choice completes the text with the most logical transition?
Detailed Answer Explanation
This question asks you to choose the transition that best connects two ideas. General claim: New species are frequently discovered. Specific example: 2022 Mariana Trench expedition. 'For instance' introduces an illustrative example. Transitions signal the relationship between sentences or paragraphs. Determine the logical relationship (addition, contrast, cause-effect, example) and select the transition that accurately expresses it. The right transition makes the relationship between ideas crystal clear. Consider what logical connection exists: Is the second idea adding to the first? Contrasting it? Showing a result? The transition should accurately reflect this relationship.
Key Evidence:
• "New species are frequently discovered"
• "2022 expedition... identified three previously unknown species"
Why others are wrong: B (Contrast - the example supports, not contrasts with, the claim.), C (Contrast - there's no unexpected element here.), D (Cause/effect - the expedition isn't caused by species being discovered.).