单选题 .  Questions 3 and 4 are based on the news report you have just heard.
3. 
【正确答案】 A
【答案解析】[听力原文]
   Well, we're taking you to Australia next today, where the state of Queensland in northeast Australia is struggling through the effects of a powerful hurricane. If Queensland sounds familiar, this same region was hit with severe flooding recently. This time, the disaster is Cyclone Yasi. Yasi could be one of the worst hurricanes Australia has ever seen. We want you to look at this video. You can see what looks like a sign that got blown down, flying through the street, being ripped apart. People in Queensland were warned about Yasi a few days ago, so they had some time to get ready. But one official said it could be a tough couple days.
   What are the Australians suffering from?