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
25
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、soon
B、presently
C、hopefully
D、rightly
答案
B
解析
应选presently,全句大意是说“这些动物的生存目前正受到威胁”。
转载请注明原文地址:https://tihaiku.com/zcyy/4047378.html
相关试题推荐
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
Shouldwecareifover150knownspeciesofanimalshave【1】fromtheearthin
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
Youshouldspendabout20minutesonQuestions29-40whicharebasedonReading
ManybooksmakemecrywhenIencounterthemforthefirsttime,althoughfe
What’sacentralthemeoftheconferenceheldinLondon?[originaltext]InLo
Highstreetshopsuseavarietyofmeanstoattractshoppers,suchasstriki
ForAmericans,timeismoney.Theysay,"Youonlygetsomuchtimeinthisl
磁电式测振传感器本质上是加速度计。()
中国古代城市的特点主要表现在( )。A.城郭分明 B.防御体系严密 C.结
女性,31岁。发现轻度贫血2年,经维生素B和叶酸治疗3个月无效。平时月经量多,
作为职业道德规范——“诚信”的特征包括()A.通识性 B.智慧性 C.止损性
2005年10月5日,甲、乙签订房屋买卖合同,约定年底前办理房屋过户登记。乙签发
最新回复
(
0
)