首页
登录
职称英语
Should we care if over 150 known species of animals have【C1】______from the e
Should we care if over 150 known species of animals have【C1】______from the e
游客
2023-12-27
32
管理
问题
Should we care if over 150 known species of animals have【C1】______from the earth in the last fifty years? Should we be concerned that there are【C2】______thousands of species whose very existence is【C3】______endangered—largely because of our activities?【C4】______, after all, is the natural end of populations. Species are born, then【C5】______, and then die. Some live a【C6】______time, perhaps millions of years; some die more quickly. We have【C7】______the extinction of many species we know about, and we have undoubtedly sealed the【C8】______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) 【C9】______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,【C10】______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【C11】______. I feel nice.
There are, of course, more rational reasons for【C12】______the extermination of any species. For one thing, the kind of attitude that encourages or sanctions the destruction of other species is a threat【C13】______our own wellbeing. If such an attitude exists, we ourselves might【C14】______victim to it. living things(including us)might be expected to fare better where there is【C15】______for life. The extinction of other species could also threaten us【C16】______by simplifying the system of which we are a part or by destroying parts of the ecosystem【C17】______which we directly rely. For example, if we continue to poison the oceans【C18】______we are willing to believe only a few bottom dwellers are affected, we might【C19】______overstep some critical threshold and trigger the wholesale death of plankton, thus finding ourselves without a major【C20】______of the world’s food and with our oxygen supplies dwindling. [br] 【C1】
选项
A、disappeared
B、died
C、endangered
D、ceased
答案
A
解析
disappear from固定短语,"从……消失"。
转载请注明原文地址:https://tihaiku.com/zcyy/3308604.html
相关试题推荐
Withoutkrill,mostoftheanimalstherewouldstarve.A、正确B、错误A原文说:And,krillb
Forpeoplebetweentheagesof18and25,theHRVshouldstayabove16.A、正确B、错误
Peopleshouldbereadytosavethemselvesinsteadofcountingsolelyonthegove
Theretheycome,trudgingalong,straightuprightonstubbylegs,shoulders
Theretheycome,trudgingalong,straightuprightonstubbylegs,shoulders
Exactlywhyobesityandearlydevelopmentshouldbelinkedisnotwellunderstoo
Youngerworkersshouldhavetheopportunitytobuildanesteggbysavingparto
以民主、包容、合作、共赢的精神实现共同安全,做到一国内部的事情一国自主办、大家共同的事情大家商量办。Weshouldworkforcommonsecu
我们应大力推进流动人口基本公共服务均等化,让流动人口在城镇获得均等的生存和发展机会。Weshouldmakesurethatmigratedpopu
Primitivesuperstitionsthatfeedracismshouldbe______througheducation.A、ig
随机试题
Acomputerisamachinedesignedtoperformworkmathematicallyandtostore
TheworstrecessionsinceWorldWarIItookplaceonthehighstreet,witho
根据下列信息拟一封邀请信和一封回信。邀请信(Letter1):1)发信人:Sharon2)收信人:Tracy3)发信日期:2014年3月15
恶性肿瘤最本质的特征是A.复发 B.肿瘤生长迅速 C.浸润性生长 D.细胞
16岁,女性,原发闭经,身高140cm,蹼颈,乳腺未发育,无阴毛、腋毛,外阴少女
下列情感障碍比较符合精神分裂症的是A.情感倒错 B.抑郁 C.焦虑 D.欣
每张处方开具的药品不得超过几种A.1B.2C.3D.4E.5
房地产经纪机构和经纪人员导致的纠纷主要表现在( )。A、向购房人做虚假宣传和
一个部落或种族在历史的发展中灭绝了,但他的文字会流传下来。“亚里洛”就是这样一种
刮板输送机以()为单位计算。A.组 B.台 C.个 D.套
最新回复
(
0
)