首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Should we care if over 150 known species of animals have【1】from the earth in the last fifty years? Should we be concerned that t
Should we care if over 150 known species of animals have【1】from the earth in the last fifty years? Should we be concerned that t
admin
2013-11-24
26
问题
Should we care if over 150 known species of animals have【1】from the earth in the last fifty years? Should we be concerned that there are【2】thousands of species whose very existence is【3】endangered—largely because of our activities?【4】, after all, is the natural end of populations. Species are born, then【5】, and then die. Some live a【6】time, perhaps millions of years; some die more quickly. We have【7】the extinction of many species we know about, and we have undoubtedly sealed the【8】of others. In fact, there are undoubtedly many other species that have lived among us during our time on earth, but that have disappeared as a(n)【9】of our activities without our ever having known they existed.
It is hard to explain the rationale of many of us who are concerned about such matters. I have never seen a sea whale,【10】I don’t want them to become extinct. Moreover, I felt this way long before I understood anything about how they might be an important part of an ecosystem. Possibly such feelings merely reflect the cultural attitude that it is "nice" to wish other living things well; thus, the attitude is【11】.I feel nice.
There are, of course, more rational reasons for【12】the extermination of any species. For one thing, the kind of attitude that encourages or sanctions the destruction of other species is a threat【13】our own wellbeing. If such an attitude exists, we ourselves might【14】victim to it. Living things(including us)might be expected to fare better where there is【15】for life. The extinction of other species could also threaten us【16】by simplifying the system of which we are a part or by destroying parts of the ecosystem【17】which we directly rely. For example, if we continue to poison the oceans【18】we are willing to believe only a few bottom dwellers are affected, we might【19】overstep some critical threshold and trigger the wholesale death of plankton, thus finding ourselves without a major【20】of the world’s food and with|our oxygen supplies dwindling.
【9】
选项
A、effect
B、result
C、issue
D、event
答案
B
解析
四个选项中只有result符合句意,a result of即“……的结果”。
转载请注明原文地址:https://kaotiyun.com/show/ufmO777K
0
考博英语
相关试题推荐
Socialpsychologistsarcusedtohearingthattheirexperimentsareawasteoftimebecausetheyjustprovetheobvious,andtel
Socialpsychologistsarcusedtohearingthattheirexperimentsareawasteoftimebecausetheyjustprovetheobvious,andtel
Criticismwithoutsuggestingareasofimprovementisnot______andshouldbeavoidedifpossible.
Forlaymenethnologyisthemostinterestingofthebiologicalsciencesfortheveryreasonthatitconcernsanimalsintheirno
Perhapsallcriminalsshouldberequiredtocarrycardswhichread;Fragile;HandlewithCare.Itwillneverso,thesedaystog
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthedifferencebetweenmarketingandselling.Nottooma
Scienceisadominantthemeinourculture.Sinceittouchesalmosteveryfacetofourlife,educatedpeopleneedatleastsome
Withouta(n)liberalsupplyofnecessaryequipmentandmaterials,themountain-climberswouldnothavebeenabletoscalethehe
Anumberofarticleshavebeenpublishedbypsychologistsinfavoroftheirprocessionbeingpermittedtoprescribepsychotropic
随机试题
中小型企业应通过市场细分,去发现那些不为大型企业所重视的细小市场,抓住市场机会。它所反映的战略思想是()
足少阴肾经的荥穴是()足少阴肾经的经穴是()
退热药首选()
矿井瓦斯是各种气体的混合物,其成分是很复杂的,它含有甲烷、二氧化碳、氮气和数量不等的重烃以及微量的稀有气体等,但主要成分是()。
【背景资料】某城市排水工程的管道顶进采用普通顶管法施工,在施工过程中的部分工作方法和施工工艺如下。(1)工作坑的支撑采用封闭式框架。(2)采用手掘式顶管时,将地下水位降至管底以下0.3m时开始顶管。(3)管顶以上超挖稳定土时
下列关于股权投资基金在投资后阶段信息获取的主要渠道的说法中,错误的是()。
教学反思的途径有哪些?
甲趁在路上行走的妇女乙不注意之际,将乙价值12000元的项链一把抓走,然后逃跑。跑了50米之后,甲以为乙的项链根本不值钱,就转身回来,跑到乙跟前,打了乙两耳光,并说:“出来混,也不知道戴条好项链”,然后将项链扔给乙。对甲的行为,应当如何定性?()
陀斯妥耶夫斯基在《卡拉马佐夫兄弟》中,以同情的笔调,描写了一群被凌辱的小人物形象。
(16)______(18)______
最新回复
(
0
)