12.Animals are natural resources(自然資源) that people have wasted all through our history.Animals have been killed for their fur and feathers,for food,for sports,and simply because they were in the way. (1)
Hundreds more are on the danger list today.About 170 kinds of animals in the United States alone are considered in danger. Why should people care about animals?Because we need animals. (2)
Animals are more than just beautiful or interesting.They are more than just a source of food. (3)
Destroying one kind of animal can cause many problems.For example,when farmers kill large numbers of hawks(鷹),the farmers' stores of corn and grain will be destroyed by rats and mice.Why?(4)
With no hawks to keep down their numbers,the rats and mice will multiply quickly. Luckily,some people are working to help save animals.Some groups raise money to let people know about the problem. (5)
Quite a few countries have passed laws.These laws forbid the killing of the animals and plants on the danger list.Slowly,the number of some animals in danger is growing.
A.Every animal has its place in the balance of nature. B.Because hawks eat rats and mice. C.Thousands of kinds of animals have disappeared from the earth forever. D.And they try to get the governments to pass laws to protect animals in danger. E.And because once they are gone,there will never be that kind any more. F.And if they are gone,there will be more.