语言类
公务员类
工程类
语言类
金融会计类
计算机类
医学类
研究生类
专业技术资格
职业技能资格
学历类
党建思政类
大学英语考试
大学英语考试
全国英语等级考试(PETS)
英语证书考试
英语翻译资格考试
全国职称英语等级考试
青少年及成人英语考试
小语种考试
汉语考试
专业英语四级TEM4
大学英语三级A
大学英语三级B
大学英语四级CET4
大学英语六级CET6
专业英语四级TEM4
专业英语八级TEM8
全国大学生英语竞赛(NECCS)
硕士研究生英语学位考试
单选题{{B}}TEXT A{{/B}} 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' fears 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 tn 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.
进入题库练习
单选题There was a ______ of his latest novel in a local newspaper immediately after its publication.A. commentB. reviewC. remarkD. revision
进入题库练习
单选题 Questions 29 and 30 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now listen to the news.
进入题库练习
单选题
进入题库练习
单选题To ______ is to save and protect, to leave what we ourselves enjoy in such good condition that others may also share the enjoyment.A. conserveB. conceiveC. convertD. contrive
进入题库练习
单选题
进入题库练习
单选题 Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation.
进入题库练习
单选题
进入题库练习
单选题______ often I try, I cannot find the answer.
进入题库练习
单选题Questions 23 and 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now listen to the news.
进入题库练习
单选题Taking photographs is strictly ______ here, as it may damage the precious cave paintings.A. forbiddenB. rejectedC. excludedD. denied
进入题库练习
单选题What could be said about the third paragraph of the passage?
进入题库练习
单选题
进入题库练习
单选题Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.
进入题库练习
单选题
进入题库练习
单选题 {{B}} Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation.{{/B}}
进入题库练习
单选题Slavery was ______ in America in the 19th century. A. abolished B. cancelled C. abandoned D. terminated
进入题库练习
单选题Questions 1 to 4 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.Now listen to the conversation.
进入题库练习
单选题There is a real possibility that these animals could be frightened, ______ a Sudden loud noise.
进入题库练习
单选题What is the speed of the outpost?
进入题库练习