阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Beijing is the capital city of China. It 【小题1】 (cover) an area of around 17, 000 square kilometers, in which there are different kinds of bird habitats (栖息地), 【小题2】 (include) grassland, scrubland (灌木丛林地), wetland, and also agricultural land. Researchers call these areas “service stations,” where migrating (迁徙) birds stop 【小题3】 (rest) and feed. But the birds ‘“service stations” re 【小题4】 (rapid) closing in Beijing, as the city considers scrubland, grassland and old agricultural land to be “dirty” and “ugly”.
The loss of grassland and scrubland is already having a major influence 【小题5】 Beijing’s bird life. In the north of Beijing, the land around Miyun used to be visited by thousands of cranes (鹤). Now, much of that land is covered with man-made forest and 【小题6】 number of cranes there has greatly fallen.
“Cranes are rare and valuable animals in China. At Miyun, a festival 【小题7】 (hold) to celebrate the migration of cranes every year,” one researcher, Townshend, says. “Because it is Beijing, we can attract many people—both local people 【小题8】 visitors.”
“More cooperation (合作) between 【小题9】 (country) is needed,” Townshend adds. “Migratory birds are a shared natural heritage (遗产), and with this comes a common 【小题10】 (responsible) to protect them and the places they need,” he says.
