1. 阅读理解

In the past 300 years, more than 130 species of animals have become extinct. One of these extinct species is the passenger pigeon (鸽子). At one time there were millions of these birds in North America, but now there are none. The last one died in Cincinati Zoo in 1914. Another extinct animal is the cape lion. This animal has been extinct since 1860.

What causes animals to become extinct? Too much hunting is one cause. Pollution is another.

Governments around the world have begun to protect endangered animals that could become extinct. In the United States, the Fish and Wildlife Service is responsible (负责) for endangered animals. It has listed nearly 200 endangered species in North America.

1. （1） How many species of animals have become extinct in the past 300 years?

   A . Nearly 200 species. B . More than 130 species. C . More than 200 species. D . More than 300 species.
3. （2） The underlined word "extinct" in the first paragraph probably means "_____".

   A . becoming ill B . dying out C . becoming less D . changing more
5. （3） There were cape lions in North America _____.

   A . in the last century B . in the nineteenth century C . over two hundred years ago D . in Cincinati Zoo in 1914
7. （4） The following may lead to the extinction of wild animals EXCEPT _____.

   A . pollution B . too much killing C . too much hunting D . hunger
9. （5） The best title of this passage should be "_____".

   A . A sad story B . Dangerous animals C . Endangered animals D . The Fish and Wildlife Service