首页
登录
职称英语
The introduction of non-native " exotic" species is now seen as a major thre
The introduction of non-native " exotic" species is now seen as a major thre
游客
2024-09-24
8
管理
问题
The introduction of non-native " exotic" species is now seen as a major threat to biodiversity. In 1825, a particularly vigorous female clone of itadori ( called Japanese knotweed) was introduced into Holland and later distributed throughout Europe by the plant collector and nurseryman, Von Seybold. British gardeners loved it and by 1886 it was even found growing on cinder tips in South Wales. By the turn of the century, the plant had colonized many other sites, and gardeners were advised against planting it in shrubberies. By 1994, it was almost everywhere railways, riversides, hedgerows, cemeteries swamping a wide range of habitats and displacing rare species. Botanists fearing that the plant is still spreading and may yet colonize other new habitats have generated recent attempts to eradicate it by mechanical and chemical methods, all in vain as yet.
The evidence stacked against Japanese knotweed is damning. But there is a deep anxiety that behind the desire to correct human ecological cook-ups often manifested as a passion to save endangered species and vulnerable ecosystems is a thinly disguised xenophobia; that we are simply seeing yet another form of ecological imperialism which defines what is "natural" based on human preferences.
But whatever our reaction to "problem" or alien species is, it must involve moral decisions; and who should make such decisions and to what degree they are accountable must also be up for review. The conclusions of scientists and other sections of society may differ vastly about what to do about the introduced animals and plants. For example, the scheme to control rabbits in Australia by deliberately spreading the disease myxomatosis was a success in that huge numbers of rabbits were wiped out for the greater good the " health" of Australian ecosystems. But would inflicting such a horrifically slow agonizing death on sentient creatures win popular support if it were proposed today?
Scientists of biodiversity are by their very nature concerned with the organization of species into systems and not necessarily with the interests and well-being of individuals, particularly those that are seen as a threat to the maintenance of those systems. Yet there is a growing feeling for the democratization of decisions concerning nonhuman life. The movement towards environmental values must surely involve a movement away from imperialism and a search for a relationship with nature as it truly is, rather than as we would design it. Then, when our lawns have long disappeared, we may yet come to honor the humble dandelion. [br] Botanists have generated attempts to remove the Japanese knotweed because
选项
A、it threatens the local biodiversity.
B、it is regarded as exotic.
C、it is so vigorous as to spread everywhere.
D、it checks other plants growth.
答案
A
解析
本题要求考生区分论点和论据。文章第一段的论点是一些外来物种对生物多样性造成了威胁,作者以节草为例来支持这一论点,故答案为[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/3771470.html
相关试题推荐
Thehumanspeciescameintobeingatthetimeofthegreatestbiologicaldiv
Thehumanspeciescameintobeingatthetimeofthegreatestbiologicaldiv
Theintroductionofnon-native"exotic"speciesisnowseenasamajorthre
Theintroductionofnon-native"exotic"speciesisnowseenasamajorthre
Theintroductionofnon-native"exotic"speciesisnowseenasamajorthre
Whatisthepassagemainlyabout?[originaltext]Greetingsandintroductions
Theintroductionofcomputersintoclassroomhasgreatlychangedthetraditi
ThefollowingareendangeredspeciesEXCEPT[originaltext]Manykindsofanim
SuggestopediaI.IntroductionA.Derivedfromsuggestio
SuggestopediaI.IntroductionA.Derivedfromsuggestio
随机试题
[originaltext]FourAmericanteenagers,allchildrenofU.S.militaryperson
身体上、下部值相等的年龄是()A.11岁 B.12岁 C.9岁
枕前位胎头娩出后的第一个动作是A.衔接 B.仰伸 C.俯屈 D.复位 E
股票及其他有价证券的( )是根据现值理论而来的。A.利率价格 B.市场价格
大剂量咖啡因对心血管的作用错误的是A.使心率加快B.血压升高C.舒张胆道D.抑制
某组原状样室内压力与膨胀率δep(%)的关系如表8-11所示。按《膨胀土地区建筑
共用题干 某企业大量大批生产某零件,现正对生产过程进行时间组织。若零件投产批量
经络的作用为 A.联系脏腑 B.沟通内外 C.运行气血,营养全身
下列疾病现象中,属于阳的是A.呼吸微弱 B.沉静少言 C.语声低微 D.声
为了简化工作手续,可以将不同内容和类别的原始凭证汇总,填制在一张记账凭证上。()
最新回复
(
0
)