as a stick of butter (一块黄油). Polar bears are not good at finding food. Only about 2 percent... as a stick of butter (一块黄油). Polar bears are not good at finding food. Only about 2 percent ……

a new food source – goose and duck eggs.The eggs could be coming in part from an increasing goose...鸭蛋也许可以拯救北极熊。词数 312 建议阅读时间 4分钟 测试见7版POLAR bears could avoid extinction despite the fact that many ……

, a polar bear is standing on ice to find food. But it is very weak (虚弱的).Because of global warming (全球变暖), the ice is getting smaller. There is less food for polar bears. Many bears run out of food ……

Polar bears are left-handed. ……

is melting faster. The polar bears can’t find enough food to eat.There is some bad news... of global warming (全球变暖), the sea ice is melting faster. The polar bears can’t find enough food ……

than polar bears. And today there are already fewer polar bears because there is less food...全球变暖或导致“混血”熊出现。词数 300 建议阅读时间 6分钟 课件及教案见网站 测试见7版YOU probably know of grizzly bears (大灰熊) and polar ……

greatlyB. goose and duck eggs as food source will prevent polar bears from starving C. bears could... into SpaceD. The North Pole of Mars and China Soars into SpacePolar bears find new... (P6)Choose the best ……

Polar bears are left-handed (左撇子). ……

. There is less food for polar bears. Many bears don’t have food to eat and some even (甚至) die....骨瘦如柴的北极熊Polar bears are fat and cute. But now they are boney (瘦骨嶙峋的). In this picture, a polar bear ……

''s main source of food. But as the documentary shows, global warming has made the polar bear...) of the mother polar bear won''t be alive next year because of lack of food. Now we find ……

.Users will even be able to find out they have new mail by the smell of coffee.Warm and greenLife in the warm and wet tropics (热带) has made two polar bears go green at the Singapore Zoo. Polar bears' hair ……

冰雪世界里的北极熊On Oct 29, a group of Chinese scientists met five polar bears (北极熊) in the Arctic (北极...外). What’s special1 about them? What can they do? Let’s have a look!Ice-cold swimmers游泳高手Polar bears ……

to go back. In the last few months, about 52 polar bears have “visited” the island in northern... there is becoming warmer. The ice on the sea is turning into water. The polar bears are losing their homes ……

北极熊真的是白色吗？What color are polar bears? You might think they are white. But actually, this is not the case.According to The Washington Post, although polar bears usually look white, their fur (皮毛) isn ……

for stronger action to control the virus.Polar bears in CanadaABOUT 1,200 polar bears, majestic meat-eating... they range across.Even at subzero temperatures, polar bears retain virtually all their body heat. Two ……