In many countries today, laws protect (36)______. In India the need for such protection was realized centuries ago. About 30

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问题     In many countries today, laws protect (36)______. In India the need for such protection was realized centuries ago.
    About 300 BC, an Indian writer (37)______ that forests were like national parks today. The game of killing beasts was carefully (38)______. Some animals were fully protected, nobody was allowed to cut down (39)______, hum wood for (40)______, or (41)______ animals for their (42)______ Animals that became dangerous to human visitors were trapped or killed outside the park, so that other animals would not become (43)______.
    (44)____________. About a thousand species(种类) of animals are in danger of dying out, and the rate at which they are being destroyed has increased. (45)____________.From AD 1 to 1800, the rate was about one species every fifty years.(46)____________.

  
In many countries today, laws protect wildlife. In India the need for such protection was realized centuries ago.
    About 300 BC, an Indian writer described that forests were like national parks today. The game of killing beasts was carefully supervised. Some animals were fully protected, nobody was allowed to cut down timber, bum wood for charcoal, or trap animals for their furs. Animals that became dangerous to human visitors were trapped or killed outside the park, so that other animals would not become uneasy.
    The need for wildlife protection is greater now than ever before. About a thousand species of animals are in danger of dying out, and the rate at which they are being destroyed has increased. With mammals, for example, the rate of extinction, is about one species every year. From AD 1 to 1800, the rate was about one species every fifty years. Everywhere men are trying to solve the problem of preserving wildlife while caring for the world’s growing population.

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答案With mammals,for example,the rate of extinction is a- bout one species every year

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