About 470 pilot whales（巨头鲸）have been beached in Tasmania in Australia. This has been the （large）whale-beaching event in Tasmania since 1935. People are working hard （save）the whales.
Every year, around 2,000 large sea animals, such as dolphins and whales, die by （swim） onto a beach or into water that's too shallow（浅的）for （they）to swim away. This （know）as "beaching". Pilot whales and killer whales are some of the most commonly beached whales.
Rescue workers are trying to "refloat（使……再浮起）" the whales so they can swim away. The job is （especial）challenging because the whales are so large. Pilot whales can grow up to 7 meters long and can weigh up to 2,300 kg.
The rescue teams, numbering about 60 people, include （volunteer）, the police and workers from the Tasmania Parks and Wildlife Service.
So far, around 25 whales have been rescued. Since rescued whales will return to the place again where others are still in trouble, workers are trying to make sure that rescued whales don't get beached again.
Dr Carlyon from the rescue team says the cool, wet weather has helped keep the whales alive. He describes the weather as "pretty ugly out there for people on the ground, as far as the whales go, it's perfect".
About 90 whales （die）so far. Rescue efforts are likely to continue for a few more days.
