Animals that kill other game for food are called predators. The predators include the wolf, mountain lion, fox, bobcat, and bear. Attack against these animals began with the arrival of the first European settlers, who wished to protect their livestock. Eventually, a reward was offered to hunters for every predator that was killed. This reward is called a bounty. Ironically, the Federal government is the chief founder of predator-control programs.
The settlers also brought in their Old World fears and superstitions concerning predators. Whether preying on livestock or not, predators were shot on sight. This attitude continues to this day for coyotes, eagles, foxes, mountain lions, and bobcats, and is largely responsible for placing the eastern timber wolf, grizzly bear, and bald eagle on the endangered species list.
Yet every animal, including the predator, has its place in natures grand design. Predators help maintain the health of their prey species by eliminating the diseased, young, old and injured. Predators like the mountain lion and the wolf help to keep the deer herds healthy. Occasional loss of livestock must be weighed against the good these animals do in maintaining the balance of nature.
26. In North America, the number of wild animals has reduced most greatly mainly 112
because_______.
A. the birds, mammals and fish there are most predators
B. the development there has been at the highest pace
C. only a few species still live in the world
D. many species have been put on the endangered species list
27. The first European settlers killed predators chiefly in order to_______.
A. eat their meat B. protect themselves
C. please the Federal government D. protect their livestock
28. Some animal species are in danger of disappearing altogether from the earth as a result of_______.
A. peoples superstitious attitude
B. peoples dislike of some animals, such as bald eagle
C. peoples hunting games
D. the self-killing of the predators
29. Bounty hunters are people who_______.
A. take care of wilderness areas
B. preserve our wildlife
C. kill meat-eating animals for money
D. work in the fund of predator-control programs
30. According to the writer, even if the meat-eating animals sometimes caused losses of livestock, man should_______.
A. estimate the value of predators
B. compare the losses with the benefits of predators
C. keep the balance of nature
D. raise more livestock
26. B 27. D 28. A 29. C 30. B
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雅思写作高频短语:社会发展
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雅思写作常用词汇:合适的职业
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烤鸭必备:雅思写作6分保命50句
小词大作用 教你用小词写雅思作文
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雅思小作文范文:说明信
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