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GRE寫作Issue部分精品素材分享之自然界的物種

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想要在GRE作文部分的考試中寫出優秀的文章,論據素材是重要的一環。好的論據不僅能幫助你支撐觀點,加強說服力,還能體現出考生在閱讀量上的積累和深厚扎實的語言功底基礎。特別是ISSUE作文,更是需要大量好素材作為儲備,才能保證考生無論遭遇那種題目,都能游刃有余地完成一篇高分作文的寫作。小編為大家整理了GRE ISSUE作文各類題目的精品優質素材,一起來看吧。


自然界中的利益

For something to require rights and protection intrinsically, it must have interests. Deep ecology is criticized for presuming that plants, for example, have their own interests. Deep ecologists claim to identify with the environment, and in doing so, criticize those who claim they have no understanding what the environment?s interests are. The criticism is that the interests that a deep ecologist purports to give to nature, such as growth, survival, balance are really human interests. “The earth is endowed with ?wisdom?, wilderness equates with ?freedom?, and life forms are said

to emit ?moral? qualities.” It has also been argued that species and ecosystems themselves have rights. However, the overarching criticism assumes that humans, in governing their own affairs, are somehow immune from this same assumption, i.e. how can governing humans truly presume to understand the interests of the rest of humanity. While the deep ecologist critic would answer that the logical application of language and social mores would provide this justification, i.e. voting patterns etc, the deep ecologist would note that these “interests” are ultimately observable solely from the logical application of the behavior of the life form, which is the same standard used by deep ecologists to perceive the standard of interests for the natural world.

物種大小歧視

The size bias is not restricted to consideration of microbes. Entomologist Nigel Stork states that “to a first approximation, all multicellular species on Earth are insects”.

A reply to this, however, is that biodiversity conservation has never focused exclusively on visible (in this sense) species. From the very beginning, the classification and conservation of natural communities or ecosystem types has been a central part of the effort. The thought behind this has been that since invisible (in this sense) diversity is, due to lack of taxonomy, impossible to treat in the same manner as visible diversity, the best that can be done is to preserve a diversity of ecosystem types, thereby preserving as well as possible the diversity of invisible organisms.

有害野生動物管理

Nuisance wildlife management is the term given to the process of selective removal of problem individuals or populations of certain species of wildlife. Some species of wildife may become habituated to man?s presence causing property damage or risk transfer of disease to humans or pets (zoonosis). Many wildlife species coexist with humans very successfully. In fact, commensal rodents have become more or less dependent on people.

Common wildlife pests include squirrels, opossums, raccoons, bats, voles, deer, mice, coyotes, bears, ravens, seagulls, woodpeckers and pigeons. Some of these species are protected by state or federal regulations, such as bears, ravens, bats, deer, woodpeckers, and coyotes, and a permit may be required to control some species.

Wildlife species are usually only pests in certain situations, such as when their number becomes excessive in a particular area. Human change in the environment will often result in increased numbers of a species. For example, piles of scrap building material make excellent sites for rodents to frequent. Food left out for household pets is often equally attractive to some wildlife species. In these situations, the wildlife has suitable food and habitat and will usually become a nuisance.

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