五、阅读理解。
Do you think of white when someone talks about a polar bear? In fact, the polar bear does not have white fur. It just seems to be white. Polar bears have a very good sense of smell. It helps them find food. During summer, polar bears sleep longer in the day, because they are able to find their food more easily at night. Usually, after a meal, polar bears have a short sleep. A polar bear can have 2-3 babies at a time. They live with their mothers until they are about two and a half years old.
However, polar bears will die out soon because of people. There are only 20,000 to 25,000 polar bears in the world. Those polar bears are trying to survive(生存) today. The number of them is becoming smaller and smaller because of the loss of sea ice—polar bears mostly live on the sea ice, not land ice. This is happening because of global warming. Besides, they also have to face pollution, being hunted and so on.
Some people don't care, but other people want to save polar bears. Join them and try to make the world a better place for those beautiful and lovely animals.
()1. What do polar bears have?
A. A good sense of touch.
B. A good sense of hearing.
C. A good sense of sight.
D. A good sense of smell.
()2. According to the passage, what problems are polar bears facing?
A. Pollution and global warming.
B. Lack of sleep and being hunted.
C. Lack of food and the loss of land ice.
D. A bad sense of smell and pollution.
()3. What can we learn from the passage?
A. Polar bears' fur is white.
B. Polar bears can have more than three babies at a time.
C. Polar bears have a good, happy life.
D. It's easier for polar bears to find food at night in summer.