The concept of the 'Anthropocene' has gained traction among geologists as a proposed new geological epoch defined by significant human impact on Earth's systems. Unlike earlier epochs, which were characterized by natural climate shifts and biological evolution, the Anthropocene is marked by the pervasive influence of industrial activity, including elevated atmospheric carbon dioxide levels, widespread plastic pollution, and alterations to the nitrogen cycle. Proponents argue that these changes are stratigraphically distinct, appearing in sediment layers as a 'technofossil' record. However, critics contend that the term lacks formal geological precision, as human effects are asynchronous across the globe, and they question whether it should be defined by a specific date, such as the onset of nuclear testing in the mid-20th century. This debate highlights a broader tension between scientific classification and the recognition of humanity's transformative role.
❓ According to the passage, what is a primary reason some scholars oppose formalizing the Anthropocene as a geological epoch?
A. Human impacts are not visible in sediment layers.
B. Its defining markers may not occur uniformly worldwide.
C. It fails to account for climate changes in earlier epochs.
D. The term is too widely used by non-geologists.
✅ 正确答案
Its defining markers may not occur uniformly worldwide.
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