请教大家一道阅读的题目~~

jocelyn_2008UID：3733250

Objectively, of course, the various ecosystems that sustain life on the planet proceed independently of human agency, just as they operated before the hectic ascendancy of Homo sapiens. But it is also true that it is difficult to think of a single such system that has not, for better or worse, been substantially modified by human culture. Nor is this simply the work of the industrial centuries. It has been happening since the days of ancient Mesopotamia. It is coeval with the origins of writing, and has occurred throughout our social existence. And it is this irreversibly modified world, from the polar caps to the equatorial forests, that is all the nature we have.

1.It can be inferred from the passage that the author would agree with which of the following statements?
A.Over tie, the impact of human culture on the natural world has been largely benign.
B.It is a mistake to think that the natural world contains many areas of pristine wilderness.
C.The only substantial effects that human agency has had on ecosystems have been inadvertent.

2.The author mentions “ancient Mesopotamia” primarily in order to  
A.provide some geographical and historical context for an earlier claim about the ascendancy of Homo sapiens
B.support the idea that the impact of human culture on nature was roughly the same in the ancient world as in later times
C.identify a place where the relationship between culture and nature was largely positive
D.emphasize the extent to which the modification of nature by human culture preceded the industrial period
E.make a connection between the origins of writing and other aspects of human cultural development

第1题用排除法选出的B，但是感觉题目中没有特别的提到B里面的内容呢。。。第2题很茫然，感觉文章中没有提到人类对于自然的影响呀~~请大家指教，谢谢~

jocelyn_2008UID：3733250

有同学知道吗？