The concept of the 'Anthropocene' has gained traction among geologists and environmental scientists as a proposed new geological epoch defined by significant human impact on Earth's geology and ecosystems. Proponents argue that markers such as nuclear fallout, plastic pollution, and elevated carbon dioxide levels provide clear stratigraphic evidence of human activity. However, critics contend that the term lacks precise temporal boundaries, as human influence has been gradual rather than abrupt, and that formalizing such an epoch may oversimplify the complex interactions between natural and anthropogenic processes. Despite this debate, the Anthropocene concept has proven valuable beyond geology, fostering interdisciplinary dialogue about humanity's role in shaping planetary systems and informing policy discussions on sustainability. Thus, while its geological status remains contested, its heuristic power in highlighting the scale of human impact is widely acknowledged.
❓ According to the passage, what is a primary reason some scientists oppose formalizing the Anthropocene as a geological epoch?
A. A. The markers of human activity are not distinctive enough to be identified in rock layers.
B. B. The concept has been too heavily influenced by political agendas rather than scientific evidence.
C. C. Human influence on Earth has been gradual, making it difficult to define a clear starting point.
D. D. The term has not gained sufficient popularity among environmental scientists.
✅ 正确答案
C. Human influence on Earth has been gradual, making it difficult to define a clear starting point.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first