Question

一道阅读分析题，麻烦帮忙详细解答一下：

原文选段：
The theory of global warming is no longer a theory. Most scientists agree that the earth is getting warmer and that CO2 gases are part of the problem. But is global warming going to destroy the planet throough his carelessness and indifference? Probably not.

问题：Why did the author say "the theoty of global warming is no longer a theory" according to the passage?
A. Because this theory is not so complicated as it used to be.
B. Because global warming has been taking place.
C. Because now everyone understand the theory and it is common knowledge rather than a theory.
D. Because global warming won't happen and theory will exist no longer.

Answer 1

选B.
题干有according to the passage。文章中提到原因是Most scientists agree that the earth is getting warmer and that CO2 gases are part of the problem. 因为is getting,所以已经在发生了。B选项has been taking place,过去完成进行时，表示过去现在一直在发生，将来很可能继续发生，符合题意。

Answer 2

B,theory有“推测,揣度”的意向。