(
B
) 7. The old man compared the man's struggles to ________.
A. breaking through the soil
B. developing strong roots
C. taking care of one's plants
D. protecting one's family
(
D
) 8. After hearing the old man's advice, the man will probably ________.
A. live in the forest
B. give up his dreams
C. plant some bamboo trees
D. try to put his life back together
C
Do you think of white when someone talks about a polar bear? In fact, the polar bear does not have white fur. It just appears to be white. Polar bears have a very good sense of smell. It helps them to find food. During summer, polar bears sleep longer, because they are able to find food more easily at night. Usually, after a meal, polar bears have a short sleep. A polar bear can have 2 to 3 babies at a time. They don't leave their mothers until they are about 2.5 years old.
However, polar bears will die out soon because of people. There are about 20,000 polar bears in the world. The ones that are left are trying to survive today. The number of polar bears is becoming smaller and smaller because of the loss of sea ice—polar bears mostly inhabit（居住于）the sea ice, not the land ice. This is happening because of global warming（全球变暖）, pollution, hunting and so on.
Ordinary people don't care, but great people have the power and want to save tigers, fight for giant pandas and save polar bears. Ordinary people will wait, but great people will find a new world. Join me and save the polar bears, and, of course, the tigers, the giant pandas and...
(
D
) 9. According to the passage, which of the following does NOT make sea ice less?
A. Global warming.
B. Pollution.
C. Hunting.
D. Traveling.
(
B
) 10. What can we learn from the passage?
A. The polar bear's fur is white.
B. Perhaps the writer will drive his car less.
C. It's harder for polar bears to find food in summer.
D. The polar bears have a good and happy life.
(
D
) 11. What is the main idea of this passage?
A. To show that the number of polar bears is getting smaller.
B. To tell people that polar bears will soon have no-where to live.
C. To let people know why polar bears are in danger.
D. To talk about polar bears and suggest that people should protect animals.
