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
2025-03-31
10
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] 【C20】
选项
A、source
B、maker
C、creator
D、resources
答案
A
解析
source of the world’s food意为“世界食物的来源”。
转载请注明原文地址:https://tihaiku.com/zcyy/4020460.html
相关试题推荐
Thewealthofacountryshouldbemeasured______thehealthandhappinessofits
Coincidentwithconcernsabouttheacceleratinglossofspeciesandhabitats
Coincidentwithconcernsabouttheacceleratinglossofspeciesandhabitats
Manylanguageteachersandlearnerstendtoaskthequestion:Whyshouldwe
Manylanguageteachersandlearnerstendtoaskthequestion:Whyshouldwe
Manylanguageteachersandlearnerstendtoaskthequestion:Whyshouldwe
Inthispartyouarerequiredtowriteacompositionentitled"ShouldtheRetire
Somepeoplefeelthattelevisionshouldgiveless______tosport.A、programsB、cov
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
Thereisnodenyingthatstudentsshouldlearnsomethingabouthowcomputers
随机试题
Whatproblemdoesthespeakerreport?[br][originaltext]Hello.I’mleavingthi
Anincreasingproportionofourpopulation,unabletolivewithoutadvancedmedi
I_____heardtheloudspeakercallingpassengersfortheTurin-Amsterdamflight.A
______thepunishmentwasunjust,Henryaccepteditwithoutcomplaint.A、Solonga
Everyhumanbeing,nomatterwhatheis
给定资料: 加强关爱保护,使数千万农村留守儿童安全健康成长,是政府、社会、
逻辑覆盖法不包括( )。A.分支覆盖 B.语句覆盖 C.需求覆盖 D.修
《国家电网公司变电运维管理规定》省公司运检部对一、二类变电站进行检查与考核,对三
项目与风险情况有关联是因为( )。A.项目有明确的不利结果 B.项目的结果不
A.关于以人们行为的功利效果作为道德价值之基础或基本评价标准的理论 B.关于责
最新回复
(
0
)