我想請問聽力第二部分的第1和第3題
1. What do the speakers mainly discuss?
答案(2個): Whether a focus on wood harvesting is an appropriate topic for
the man's paper.
Why the man became interested in wood harvesting techniques.
為什麼不能選: How the man should narrow the focus of his paper.
後來The man不是有跟professor說要寫Native Americans in this area嗎?
3. What had the man assumed about human impact on the environment?
答案: That human impact on the environment is always harmful.
為什麼不能選:That humans have only recently had an impact on the environment.
謝謝各位！