问题补充：
In the past 300 years, more than 130 species of animals have become extinct. One of these extinct species is the passenger pigeon(旅鸽). At one time there were millions of these birds in North America, but now there are none. The last one died in the Cincinnati Zoo in 1914. Another extinct animal is the cape lion(西非狮). The animal has been extinct since 1860.
What cause animals to become extinct? Too much hunting is one cause; pollution is another.
Governments around the world have begun to protect wild animals in danger. In the United States, the US Fish and Wildlife Service is responsible for(承担义务)endangered animals. It has listed nearly 200 species of endangered animals in North America.
【小题1】The underlined word “extinct” in the first sentence probably means “”.A．illB．dying outC．becomingD．changing【小题2】There were many cape lions in North America .A．last centuryB．in the twentieth centuryC．more than one hundred years agoD．in 1914【小题3】isn’t the reason for the extinction of wild animals in North America.A．The pollutionB．Too much killingC．Too much huntingD．The war【小题4】Three are species of wild animals in danger listed by the US Fish and Wildlife.A．less than 130B．about 200C．over 300D．nearly 300【小题5】The best title of this passage should be “”.A．A sad storyB．Endangered animals in North AmericaC．Wild animals become extinctD．The US Fish and Wildlife ServiceB
答案：
(答案→)B
解析：这篇文章主要讲的是在北美，有将近200种野生动物已经灭绝了。
【小题1】细节题。根据文章In the past 300 years, more than 130 species of animals have become extinct.可知，在过去的300年，有超过130种动物已经灭绝了。Extinct意思是灭绝。故选B
【小题2】细节题。根据文章Another extinct animal is the cape lion(西非狮). The animal has been extinct since 1860.自从1860年，西非狮已经灭绝了。可知，上个世纪北美有许多西非狮子。故选C
【小题3】细节题。根据文章Too much hunting is one cause; pollution is another.
可知，猎杀和污染是导致北美野生动物灭绝的原因。故选D
【小题4】细节题。根据文章It has listed nearly 200 species of endangered animals in North America.可知，在北美，已经列举了将近200种濒临动物。故选B
【小题5】主旨题。这篇文章主要讲的是野生动物的灭绝。故选C
