ACT (Enhanced)ReadingEasy
A scientific report discusses the impact of climate change on ocean ecosystems: "Rising sea temperatures are leading to coral bleaching events of unprecedented scale and frequency. This phenomenon, where corals expel symbiotic algae, not only threatens the biodiversity of coral reefs but also impacts the livelihoods of coastal communities reliant on these ecosystems for fishing and tourism. The long-term implications include significant reductions in marine species and increased coastal vulnerability to storms." The phrase "unprecedented scale and frequency" primarily serves to:
- AEmphasize the severity and increasing occurrence of coral bleaching.
- BSuggest that previous coral bleaching events were less harmful.
- CIntroduce a new scientific discovery about coral biology.
- DProvide a historical context for understanding ocean temperatures.
Show answer & explanationAnswer & explanation
Correct answer: A. Emphasize the severity and increasing occurrence of coral bleaching.
The word 'unprecedented' means never done or known before, indicating a new level of severity. 'Scale and frequency' directly refer to how widespread and often these events are occurring. Together, they strongly emphasize the increasing severity and occurrence.
Why the other options are wrong
- B. While implied that previous events were less severe, the primary purpose is to highlight the *current* situation's gravity, not solely to compare the past.
- C. The phrase describes the *current state* of bleaching, not a new discovery about coral biology itself.
- D. The phrase describes bleaching events, not directly providing historical context for ocean temperatures, though related.
Author's Word Choice (Connotation)
The author's deliberate selection of specific words to evoke particular feelings, ideas, or associations beyond their literal meaning, influencing the tone and message.
- Connotation adds emotional or cultural associations.
- Denotation is the literal dictionary definition.
- Word choice can shape reader perception.
Memory trick: Words Carry Weight, Choose Wisely.