六、短文填空。(每空1分,共15分)
第一节 阅读短文,在空白处填入一个适当的单词或括号内单词的正确形式。
Shanghai Chongming Island is a must-see for bird lovers. Every year, large numbers of migratory birds visit the island. They stop mainly at the Chongming Nature Reserve. The reserve 1.
sits
(sit) at the eastern end of the island. So far, about 300 bird species have been found in the area.
Why has the place become a perfect place for migratory birds? Let's look at 2.
its
(it) location. At the mouth of the Yangtze River, Dongtan is a great wetland. It's home to plenty of fish and other animals 3.
living
(live) in or on the water. Its ecosystem provides a perfect natural home 4.
for
birds. They use it for breeding(繁殖), nesting and raising young. It's also a place for birds to feed, drink, and rest.
Usually, birds migrate 5.
twice
(two) a year. In the autumn, they fly south to spend the winter. When spring comes, they head back north to breed. Many birds fly more than 10,000 kilometres in a single trip. 6.
Generally
(general), they cannot finish the journey in one go between their breeding home and wintering grounds, 7.
so
wetlands serve as way stations for them to rest and feed before continuing their journey.
The Dongtan wetland is a key stopover site(中途停留点). "About one million visits by migratory birds— 8.
including
(include) those that fly past—are recorded at Dongtan every year," says a professor.
Many years ago, many wetlands were destroyed. Bird populations have reduced because of this habitat loss. Luckily, in recent years, the government has worked hard 9.
to protect
(protect) the wetlands. The professor says that 10.
an
increasing number of birds have been seen at Dongtan. This indicates that the protection methods of wetlands have achieved certain results.