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
29
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://jikaoti.com/ti/whgYFFFM
0
考博英语
相关试题推荐
Perhapsallcriminalsshouldberequiredtocarrycardswhichread;Fragile;HandlewithCare.Itwillneverso,thesedaystog
A、shallB、willC、wouldD、shouldD本题是对虚拟倒装条件句的考查,此时应省去连接词if,要将助动词should,had,were提前,表示一种设想。因此本题答案为D。
Throughoutthehistoryoflife,speciesoflivingcreatureshavemadeuseofchemicalenergybytheslowcombinationofcertain
Scienceisadominantthemeinourculture.Sinceittouchesalmosteveryfacetofourlife,educatedpeopleneedatleastsome
Australiaprovidestheonlyseparate,______laboratoryinwhichdramaticQuaternaryextinctionoccurred.
Thepoliceinspector,havingreceivednewinformationfromaconfidentialsource,decidedtoenlargethe______ofhisenquiry.
Anumberofarticleshavebeenpublishedbypsychologistsinfavoroftheirprocessionbeingpermittedtoprescribepsychotropic
Anumberofarticleshavebeenpublishedbypsychologistsinfavoroftheirprocessionbeingpermittedtoprescribepsychotropic
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
71.Asaromanticteenager,IbelievedthatmyfuturelifeasascientistwouldbejustifiedifIcoulddiscoverasinglenewfac
随机试题
________是指提供综合性互联网信息资源的接入并能提供有关信息服务的互联网应用系统。
生物群落有哪些基本特征?
患者女性,52岁。10年前患乳腺癌,做过乳房切除和放射治疗,现因背部疼痛就诊,实验室检查血钙浓度显著升高,有重度高钙血症。引起该患者高钙血症的病因最可能为
诊断职业病应当确定
下列属于走私罪或按走私罪论处的行为是( )。
下列关于“依法治国”的表述正确的是()。
简述终身教育的主要观点。
ManyforeignerswhohavenotvisitedBritaincallalltheinhabitantsEnglish,fortheyareusedtothinkingoftheBritishIsle
Mistakesarethethingsthatnobodywants,butwestillmakemistakesatanyage.Somemistakeswemakeareaboutmoney.Somear
Childrencanspendhoursadaylookingatcomputerscreensandotherdigitaldevices.Someeyecareprofessionalssayallthats
最新回复
(
0
)