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
2013-01-28
44
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】overstsp 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.
选项
A、succeedingly
B、eventually
C、closely
D、determiningly
答案
B
解析
这句话讲的是我们的污染行为所导致的最终结果,所以用eventually。
转载请注明原文地址:https://kaotiyun.com/show/o81O777K
0
考博英语
相关试题推荐
Thecomponentofthehealthypersonalitythatisthefirsttodevelopisthesenseoftrust.Aswithotherpersonalitycomponent
Scientistsgenerallyholdthatlanguagehasbeensolonginusethatthelengthoftimewritingisknowntocoveris______inco
Whatismeant【51】theword"friend"?Thedictionary【52】itas:."oneattachedto【53】byaffectionoresteem".Americansuset
Whatismeant【51】theword"friend"?Thedictionary【52】itas:."oneattachedto【53】byaffectionoresteem".Americansuset
Withhumanfootprintsonthemoon,radiotelescopeslisteningformessagesfromaliencreatures(whomayormaynotexist).techn
Withhumanfootprintsonthemoon,radiotelescopeslisteningformessagesfromaliencreatures(whomayormaynotexist).techn
Well,nogainwithoutpain,theysay.Butwhataboutpainwithoutgain?EverywhereyougoinAmerica,youheartalesofcorporat
Themedicineisonsaleeverywhere.Youcangetitat______chemist’s.
WiththeUSeconomyslowingdown,layoffsareeverywhere.Noindustryisspared.Ifyouenduphavingtostartover,inaddition
随机试题
Eatinghealthilycostsabout$1.50moreperpersondaily,accordingtothemostthoroughreviewyetoftheaffordabilityofahe
已知二次型f(x1,x2,x3)=5x12+5x22+Cx32一2x1x2+6x1x3—6x2x3的秩为2,求参数C及此二次型对应矩阵的特征值.
患者,男,38岁。包皮溃破伴疼痛5天。既往无类似发作史。体格检查:包皮内板见多个针帽大小的浅溃疡,呈群集排列。关于该患者的处理下列不正确的是
A.氯化钡试剂B.硝酸银试剂C.硫代乙酰胺试剂D.锌与盐酸E.硫化钠试剂药物中硫酸盐的检查可用()。
某一非单向流洁净室等级为4级,房间高为3m,面积为80m2,所需换气次数在400次/h以下,房间断面风速为0.6m/s,则洁净室送风量为()。
商业银行应当对客户风险承受能力进行评估,确定客户风险承受能力评级,由低到高至少包括(),并可根据实际情况进一步细分。
满足效用最大化的商品组合()。
房地产保险的保险金额一般根据保险房地产的()确定。
练习曲线是练习进程与——之间函数关系的曲线图。
吴大成教授:各国的国情和传统不同,但是对于谋杀和其他严重刑事犯罪实施死刑,至少是大多数人可以接受的。公开宣判和执行死刑可以有效地阻止恶性刑事案件的发生,它所带来的正面影响比可能存在的负面影响肯定要大得多,这是社会自我保护的一种必要机制。史密斯教授
最新回复
(
0
)