The giant panda loves bamboo. An adult panda requires 12.5 kilograms of bamboo, which it____(hungry) pulls out with its powerful paws, to satisfy its daily needs. Wild pandas live only in the high bamboo forests of Central China. These mountain forests are cool and wet--just as pandas like it. In the summer, they may climb as high as 4000 meters to help themselves to bamboo ____（grow) at higher altitudes. Frequently, pandas____(see) eating in a relaxed sitting position, with their back legs stretched out before them.____ they may appear inactive, they are in fact skilled tree-climbers and efficient swimmers.

    Giant pandas are unsociable. They have a highly developed sense of smell that males use____(avoid) each other and to find females for mating in the spring. After a five-month pregnancy, a female gives birth ____ a cub. The blind baby pandas weigh only 142 grams and cannot crawl(爬行)____ they reach three months of age____ are born white, and develop their much loved coloring later.

    There are only about 1000 giant pandas left in ____ wild, with perhaps another 100 in zoos. Because they are so rare, much of____ we know about pandas comes from studying these zoo animals.