首页
登录
职称英语
Should we care if over 150 known species of animals have【1】from the earth in
Should we care if over 150 known species of animals have【1】from the earth in
游客
2025-04-21
24
管理
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. [br]
选项
A、disappeared
B、died
C、endangered
D、ceased
答案
A
解析
disappear from是固定短语,意为“从……消失”。
转载请注明原文地址:http://tihaiku.com/zcyy/4047376.html
相关试题推荐
Youshouldspendnomorethan20minutesonthistask.Youandyourfami
Ratherthanallowingthegovernmenttocontrolinvestments,truepower,shouldb
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
随机试题
Ironically,intheUnitedStates,acountryofimmigrants,prejudiceanddiscr
Protestsattheuseofanimalsinresearchhavetakenanewandfearfulchar
游离木脂素能溶于()A.水 B.乙醇 C.氯仿 D.乙醚 E.苯
患儿,9岁。水肿、少尿3天,头痛、呕吐1日,因突然抽搐急来就诊,体检:意识不清,
下图是南宋李嵩的《货郎图》,此图反映的是()。 A.娱乐业的兴起 B.农业
以下属于尿量不增加的情况是()。A.尿崩症 B.糖尿病 C.利用利尿剂
A. B. C. D.
以下不是牙周手术适应证的是A.基础治疗不能彻底清除根面刺激物 B.牙槽骨吸收外
根据《中华人民共和国邮政法(修订草案)》,实行政府定价,资费标准由国务院价格主管
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)