填空题

We often see bears in the zoo. They are so cute and big. Bears are found in (36) , Asia, Africa and America. They are massively (37) with short tails and (38) legs. Bears are not really carnivores, because they cat almost anything. The (39) exception is the polar bear which in its (40) state lives on fish and seals, However in (41) they seem to enjoy meat, (42) , fruit, milk, rice and porridge. Bears are not quite as dangerous as people (43) them to be. Like most animals, they will do their best to avoid human beings. However, bears are by no means cowardly animals. Many hunters have been killed by bears for they can be extremely dangerous and cunning.
Bears have a very keen sense of smell but they had very poor eyesight. (44) They feed mainly on roots, berries, frogs, rodents, dish and also small insects. (45) but they seem to prefer small creatures like termites or beetle grubs. In the colder regions, bears hibernate, or go to sleep, from October to April. (46) . These enegy could help them to pass the whole winter.