Polar bears can’t___for long on land.
A: survive
B: rehearse
C: swim
D: exercise
A: survive
B: rehearse
C: swim
D: exercise
举一反三
- As is told about bears in the passage, we know that (). A: it is easy for bears to find enough food if they can climb trees. B: a bear can long remember where it has found food. C: all except polar bears are able to climb trees to catch their prey. D: all except polar bears and adult brown bears feed on small animals.
- By saying "Spring is usually prime food time for 1,200 polar bears" ( Line 1, Para. 1 ), the author means that ______. A: spring is usually a good time for polar bears to carry out their mating rituals B: the polar bears usually eat a lot in the spring C: spring is generally a good time to hunt polar bears D: polar bears usually hibernate in the spring
- What can we learn from the first paragraph（） A: A dolphin is a special kind of fish. B: Dolphins can"t swim very quickly. C: Dolphins can live only in the sea. D: Dolphins produce their babies on land.
- Where can I find polar bears? 句中划线单词的正确意思是_____。
- Due to global warming, thefor polar bears is shrinking, causing the number of polar bears to keep decreasing. A: habit B: habitat C: apparatus D: habitant