题目

题型：不详难度：来源：

British adventurer and swimmer Lewis Gordon Pugh became the first person to swim in the icy waters of North Pole，to raise awareness of how global warming ______ the polar ice cap.

A．had affected

B．is affecting

C．affected

D．will affect

答案

B

解析

因为全球变暖是现在人类面临的有待解决的客观问题。现在进行时态在句中表示渐进的意味。