animals are natural resources that people have wasted all through our history. animals have been killed for their fur and feathers, for food, for sport, and simply because they were in the way. thousands of kinds of animals have disappeared from the earth forever. hundreds more are on the danger list today. about 170 kinds in the united states alone are considered in danger.
why should people care? because we need animals, and because once they are gone, there will never be any more.animals are more than just beautiful or interesting. they are more than just a source of food. every animal has its place in the balance of nature. destroying one kind of animal can create many problems. for example, when farmers killed large numbers of hawks, the farmers stores of corn and grain were destroyed by rats and mice. why? because hawks eat rats and mice, with no hawks to keep down their numbers, the rats and mice multiplied quickly.
luckily, some people are working to help save the animals. some groups raise money to let people know about the problem. and they try to get the governments to pass laws protecting animals in danger. quite a few countries have passed laws. these laws forbid the killing of any animal or planton the danger list. slowly, the number of some animals in danger is growing.
新gre词汇denigrate
新gre词汇onerous
新g词汇:peccadillo考法及近反义词解析
新g词汇:impious考法及近、反义词解析
新gre词汇tortuous
新g词汇:implode考法及近反义词解析
新gre词汇transient
新gre词汇amorphous
新g词汇:ambrosial考法及近、反义词解析
gre词汇备考:常见词根词缀整理10
新g词汇:impromptu考法及近反义词解析
新g词汇:fledgling考法及近、反义词解析
新gre词汇inception
新g词汇:perfidy考法及近反义词解析
新gre词汇incendiary
新gre考试:新增词汇2
新gre词汇inalienable
gre词汇备考:常见词根词缀整理9
gre词汇备考:常见词根词缀整理15
新g词汇:pariah考法及近、反义词解析
新gre考试机考填空词汇18
新g词汇:tenuous考法及近、反义词解析
gre词汇备考:常见词根词缀整理6
gre词汇备考:常见词根词缀整理14
gre词汇备考:常见词根词缀整理5
新g词汇:impudent考法及近反义词解析
新gre词汇amalgamate
新gre考试机考填空词汇9
新gre词汇predilection
新gre词汇vociferous
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