根据“This is dangerous for the polar bears, as they depend almost only on seals for food.”可知,北极熊几乎只以海豹为食。所以如果海冰上没有海豹,北极熊可能就没有食物可吃了。该项表述正确,故选A。 【3】细节理解题。根据“Unlike brown and black bears, polar bears do not hibernate(冬眠) ...
Moose outnumber bears (the state has about 100,000 black bears and 30,000 brown bears) and are responsible for wounding five to 10 people in the state annually. Meanwhile, on average, three to four people are hospitalized each year as a result of a bear attack. Despite the incidence ...
is dangerous for the polar bears,as they depend almost only on seals for food.Unlike brown and black bears,polar bears do not hibernate(冬眠) during the winter.Only female(雌的) polar bears will go into a "little house"and stay for a long time if they are giving ...
Will a single shark that’s involved in a bite on a human be more likely to bite another human in the future? 咬过人的鲨鱼会不会更有可能咬人? In other words, is there something of the ‘Jaws’ image as we saw, unfortunately, in the movies 换句话说,鲨鱼会不会像我们在电影中看到的那...
Don’t open a hot door! The fire can grow more quickly if you open the door. Stay close to the floor! Smoke can be more dangerous than fire. The best is near the floor because smoke rises. What will you do if your hair or clothes start to burn? First, stop! Don’t run! The ...
Women drivers are more likely to be involved in an accident, according to scientists.Researchers looked at 6.5million car crashes and found a higher than expected number of accidents between two female drivers.They also discovered that women have a tough time negotiating crossroads, T-...
(4) Wear Helmets, More Dangerous? Cyclists who wear helmets are more likelyto be hit by overtaking vehicles,psychologist Dr. Ian Walker from the University of Bath published last week. He used a bicycle(1) _(fit)with a distance sensor to record data from more than 2,500 overtaking ...
A troubling trend is brewing underneath America's strong employment market: more children are working in dangerous jobs, violating the nation's labor laws and putting their lives at risk. In the last 10 months, federal regulators have found almost 4,500 children working in violation of federal...
• To discover curious facts: how long does a snail take to cross a garden? How does a spider weave its web? How many legs does a centipede have? Are scorpions dangerous? • With dozens of educational games: Create your own bug; Classify bugs; Learn their characteristics; Find spiders...
根据“This is dangerous for the polar bears, as they depend almost only on seals for food.”可知,北极熊几乎只以海豹为食。所以如果海冰上没有海豹,北极熊可能就没有食物可吃了。该项表述正确,故选A。 【3】细节理解题。根据“Unlike brown and black bears, polar bears do not hibernate(冬眠) ...