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Difficulty: MediumWords in Context: High-Utility Vocabulary

Which choice completes the text with the most logical and precise word or phrase?

Answer:In historical linguistics, researchers face significant challenges when reconstructing languages that left no written records. Because direct evidence is entirely absent, linguists must rely on comparative methods, analyzing cognates across descendant languages to infer ancestral forms. This process is inherently 【speculative】; while it can suggest highly plausible ancestral structures, it cannot definitively prove them without corroborating archeological or textual discoveries.

Answer

speculative
The correct answer must describe a process that is based on inference and lacks absolute certainty. Words such as 'speculative', 'conjectural', 'hypothetical', or 'tentative' convey that the linguistic reconstruction is a theoretical model rather than a definitively proven fact.

Step-by-Step Solution

1
Analyze the context of the blank.
The passage discusses reconstructing languages with 'no written records' and where 'direct evidence is entirely absent.'
Understanding the context establishes the constraints for the missing word.
2
Evaluate the contrast or transition clues in the target sentence.
The target sentence notes that the process 'cannot definitively prove' structures but only suggests 'highly plausible' ones.
This contrast indicates that the process is based on theoretical inference rather than concrete, proven facts.
3
Identify a precise, high-utility academic word that matches this meaning.
Words like 'speculative', 'conjectural', 'hypothetical', or 'tentative' fit the context perfectly.
These terms describe reasoning or conclusions based on incomplete evidence rather than direct proof.

Key Concept

Words in Context: High-Utility Vocabulary
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Topics

Words in Context: High-Utility Vocabulary

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