Set 9: Form, Structure & Sense (Intermediate)
Explanation
PASSAGE
Evidence indicates that the study of astronomy requires patience, _______ celestial events often occur over vast timescales.
Which choice completes the text so that it conforms to the conventions of Standard English?
Detailed Answer Explanation
[Variation 4] This question tests your understanding of sentence function and text organization. 'Because' introduces a reason. The second clause explains why astronomy requires patience (events occur over vast timescales). Each sentence in a well-constructed text serves a specific purpose. Consider what role this sentence plays in the argument: does it introduce, support, contrast, or conclude an idea? Understanding why an author includes specific sentences helps you grasp the overall argument. Each sentence should serve a clear purpose: introducing ideas, providing evidence, acknowledging counterarguments, or drawing conclusions. Identify the role to understand the structure.
Key Evidence:
• "requires patience"
• "celestial events often occur over vast timescales"
Why others are wrong: D ('However' shows contrast, but the two clauses have a causal relationship.), B ('Although' shows contrast; the relationship here is causal.), C ('Therefore' indicates result; the second clause is a cause, not result.).