(E)
Ryrkaypiy, a village with about 700 people, is located in the north-east of Russia. Standing on the coast of the Arctic Ocean (北冰洋), it has to brave both the Arctic's cold weather and wild animals like polar bears. Most of the area's polar bears live a few miles away from Ryrkaypiy.

Only a few bears come near to the village now and then.
But last winter, over 50 polar bears went to Ryrkaypiy in search of food. The villagers were told to stay indoors to avoid danger. Now polar bears come to the village more often and in larger numbers than ever.
Although polar bears are born on land, they spend most of their life on the sea ice. The ice gives them a place where they can have a rest and catch fish. But as the temperature rises because of global (全球的) warming, the bears have started to find their home disappearing (消失).
Polar bears normally (通常地) go onto dry land in summer, and return to the ice when the ocean freezes (冰冻) again in autumn. But over the past few years, the ocean has frozen later and later, and the ice area has become smaller and smaller. Unable to live on the ice, hungry polar bears have to look for food on land, including villages like Ryrkaypiy.
In some countries, polar bears are considered as endangered animals. If the Earth becomes so warm that there is no longer enough sea ice for the bears to live on, there will probably be no polar bears.
Actions must be taken to protect both polar bears and humans.
每题答案不超过 8 个单词
1. Which ocean do these polar bears live in?

2. Why did so many polar bears go to Ryrkaypiy last year?

3. What causes the loss of polar bears' home?

4. When do polar bears normally return to the ice from the dry land?

5. What do you think we can do for both polar bears and ourselves?