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
2025-01-21
8
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] 【C10】
选项
A、still
B、yet
C、also
D、then
答案
B
解析
能用在此位置的连词只有yet和then,但句子前后显然不是先后顺序关系,所以用yet。
转载请注明原文地址:https://tihaiku.com/zcyy/3923173.html
相关试题推荐
Thechildrenshouldsay"thankyou"toyouwhenyougavethemgifts.A、hadsaidB
AnumberofanimalsinAesop’sfablesareportrayedasbeingcrafty.A、vainB、vi
Ingeneral,theamountthatastudentspendsforhousingshouldbeheld______to
Humanbeingsaresuperiortoanimalsthattheycanuselanguageasatoolofcom
Animalsthatcouldnot______themselvestothechangedenvironmentperishedandt
Thatshouldbeanexcellentopportunityofyoutosaywhatyouthink.A、opportuni
Somepeoplethinkmoreofanimalsthanwillofchildren.A、theyhaveB、theyhadC
Anytroopofwildanimalsshouldbeapproachedwarily.A、fearlesslyB、confidently
Thedoctor’s______wasthatsheshouldgoandseethespecialistinthisfield.A、
Peoplewhosepropertyisstolenshouldreporttothepolice.A、hadstolenB、isbe
随机试题
Parentsoftenfacedthe______betweendoingwhattheyfeltwasgoodforthedev
PASSAGETHREE[br]Whytheauthordidn’texaminethereliabilityofJin?Becamet
[originaltext]Whatwouldyouliketodoinyoursparetime?[/originaltext][au
"BiologyClass"[img]2012q1/ct_etoefm_etoeflistz_1688_20121[/img][br]Whatisth
ThefollowingisuMemo.Afterreadingit,youarerequiredtocompletetheoutl
编译程序对C语言源程序进行语法分析时,可以确定( )。A.变量是否定义(或声明
患者,男,70岁,因上颌缺牙1年要求修复。现病史:1年内陆续拔除上颌多个松动及烂
下列各项中,反映企业对短期债务偿付能力的是()。A、应收账款周转率 B、总资
埋设后的单盘直埋光缆,金属外护层对地绝缘电阻竣工验收指标为不低于()MΩ?km
某医院夜间遇上腹部剧痛患者,初诊为急性胆囊炎,诊断医生年轻怕担风险,未做任何处理
最新回复
(
0
)