第一节（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
A
Whether you live in Seattle or the Sahara desert, the time has come to invest in a good raincoat or umbrella, a new study suggests.
As global temperatures continue to rise, more “extreme rain” events --- intense, cats-and-dogs downpour --- can be expected, said the study, published Monday in the journal Nature Climate Change. And that, scientists said, means an increased flood risk, particularly for the world’s driest areas. The study challenges the idea that global warming is causing dry areas to become drier and wet areas wetter.
