2019届外研版高中英语必修五课文预读课件:Module 6 Period One
2019届外研版高中英语必修五课文预读课件:Module 6 Period One第3页

Polar bears live on the Arctic sea ice that provides a platform from which they can hunt.They hunt seals on the sea ice.With their sharp sense of smell,polar bears can sense the breathing holes of seals beneath the snow and ice.As the southern edge of the Arctic ice cap melts in summer,polar bears are forced to stay on land and spend their summers fasting(禁食),living off body fat stored from hunting in spring and winter.