Trả lời. The passage describes Professor Jeffcott's lecture as "lively" and "engaging," indicating Dave found him enthusiastic.

Based on common academic listening materials (such as the IELTS Intensive Listening exercises), the relationship between Professor Jeffcott

Today, the relationship remains tense but productive—at least from Dave’s perspective. In his most recent update (published just last month), Dave wrote a piece titled “What I Still Think About Professor Jeffcott (Three Years Later).”

The Jeffcott Effect: Why Enthusiasm is the Secret Ingredient to Prehistory

In the context of typical listening comprehension materials (often found in or similar exams), Dave thinks Professor Jeffcott is very enthusiastic about archaeology .