【正文】 rotect and breed these animals more effectively. Pandas are exceedingly elusive. Pandas are natural vagrants, unsociable and eccentric. There has been considerable debate over the evolution of pandas. Some experts have thought that they descended from raccoons*. Others believe they share a mon ancestor with the bear, but evolved independently. The animals could once be found in much of southern and eastern China, as well as parts of Southeast Asia. And though the panda39。s range has steadily shrunk, its habits are unaltered. The panda39。s routine is indeed a bum39。s life, spent wandering from one bad meal to another and bedding down in the nearest dark corner. Although pandas can swim and climb trees, they spend most of their time seeking out and chewing bamboo. Pandas have been known to eat chicken and honey when bamboo is in short supply. But in the wild, bamboo is their primary fare. And because it is such a poor source of nutrition and hard for them to digest, pandas must eat prodigious amounts. Pandas consume about 30 pounds of bamboo a day. On this monotonous diet, they attain weights of up to 250 pounds. They make a variety of sounds: bleating, chirping, huffing, snorting and even barking like a dog if startled. At about age five, the female, smaller than the male, will moan, signaling she is receptive. Her call is often answered by as many as three or four males. In late August or September, after a gestation period estimated at 90 to 160 days, the female gives birth. Her litter often consists of two mousesize newborns covered in sparse white hair, through which their pink skin shows. But she is likely to focus on a single cub not necessarily the healthier and let the other die. The baby is cared for in a cave or hollow tree that the female has lined with bamboo twigs. The mother assumes sole responsibility for the cub, nursing it often during the first six months. She guards her infant closely, carrying it in her paw or teeth. Not until it is 18 months old is her offspring*, by then almost 100 pounds heavier, ready to live on its own. A female can conceive only two or three days a year. Because she takes 18 months to rear her offspring, she will reproduce only once every two years. The most promising hope for the panda39。s future seems to be the increased efforts by the Chinese government. Public concern for the welfare of pandas has been heightened by stiff penalties for poaching. So we can, perhaps, begin to dream again of a future with the pandas, born in the wild or returned there after birth, fullfurred giants wandering and occasionally meeting deep in the verdant tangles of bamboo. We may never see them, but it is rewarding to think the pandas will be there, for these captivating creatures clearly hold a special place in our hearts. A: Prelistening Question Do you know how long the panda will live in the wild or in the zoo?It is said that a panda in the wild will live around 25 while in the zoo it might live much longer. It is reported that the panda, Meimei, in Guilin Zoo died nearly at the age of 37, the longest life of the panda that has ever been recorded. B: Sentence Dictation Directions: Listen to some sentences and write them down. You will hear each sentence three times.New insights into behavior, diet and physiology offer hope that we may be able to protect and breed these animals more effectively. Although pandas can swim and climb trees, they spend most of their time seeking out and chewing bamboo. They make a variety of sounds: bleating, chirping, huffing, snorting and even barking like a dog if startled. The mother assumes sole responsibility for the cub, nursing it often during the first six months, and guarding her infant closely. We may never see them, but it is rewarding to think the pandas will be there, for these captivating creatures clearly hold a special place in our hearts. C: Detailed Listening Directions: Listen to the passage and choose the best answer to plete each of the following sentences. D: Afterlistening Discussion Directions: Listen to the passage again and discuss the following questions.Pandas are natural vagrants, unsociable and eccentric. Some experts have thought that they descended from raccoons. Others believe they share a mon ancestor with the bear. The animals could once be found in much of southern and eastern China, as well as parts of Southeast Asia. The panda39。s routine is indeed a bum39。s life, spent wandering from one bad meal to another and bedding down in the nearest dark corner. Although pandas can swim and climb trees, they spend most of their time seeking out and chewing bamboo. Pandas have been known to eat chicken and honey when bamboo is in short supply. They make a variety of sounds: bleating, chirping, huffing, snorting and even barking like a dog if startled.