首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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 t
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 t
admin
2013-01-28
57
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.
选项
A、because
B、as if
C、and
D、even
答案
A
解析
句子前后为因果关系,所以用because引导这一从句,大意是说“因为我们相信我们的行为只影响了海底的几种生物,所以我们便持续污染海洋”。
转载请注明原文地址:https://kaotiyun.com/show/E81O777K
0
考博英语
相关试题推荐
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?Judgin
Thegovernmenthastodecidewhethercostorconcernfortheenvironmentshouldtake______whenchoosingtherouteforthenewr
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Inordertoworkheretheforeignerneedsaworkpermit,whichmustbe【21】forbyhisprospectiveemployer.Theproblemhereist
Ourspeciesevolvedonthemove.Recentresearchontheeffectsofexerciseandtheconsequencesofsedentarylivinghasshownt
Hisproductiontechniquesareelaborateandnearlegendary,buteveniftheycouldbe____,itwouldn’tbethesameforanyotherp
IwasvisitingNewYorklastweekandnoticedsomethingI’dneverthoughtI’dsayaboutthecity.Yes,nightlifeisprettymuch
Itdidn’tseemtohave______toherthatonceshewasaddictedtodrugsmoking,shecouldhardlygiveitup.Butitdidhappen.
随机试题
社会工作者小陈接待了前来求助的初中生小红,经过面谈和预估,小陈发现小红和母亲的沟通存在困难。针对小红的问题,小陈开展的下列服务中,属于直接介入的有()。
眼分泌物为黏稠状,分泌物中嗜酸性白细胞增多眼部有少许黏稠分泌物、黏性或白色泡沫样分泌物,结膜充血,有乳头增生或滤泡形成
从末次月经的第一天算起,阳历预产期的推测为()
香港入境货物的木质包装,使用针叶树木质包装的需提供该国《植物检疫证书》。( )
下列有关基因工程的叙述,错误的是()。
敌人已经发现我们了,这里不能久留,今晚六点出发瓦窑堡。
钟某性情暴躁,常殴打妻子柳某,柳某经常找同村未婚男青年杜某诉苦排遣,日久生情。现柳某起诉离婚,关于钟、柳二人的离婚财产处理事宜,下列哪一选项是正确的?()[2016年法考真题]
高考过后,同学们都在思考以后的发展,比如报考什么大学,选择什么专业等,而璐璐则看上去很轻松,他说这些父母都替他规划好了,只要听父母的就没错,璐璐的情况属于()。
数据流图是描述数据在软件中流动和变换的过程,而对数据流图中所包含的元素的定义则是()。
Knowledgemaybeacquiredthroughconversation,watchingtelevisionortraveling,butthedeepestandmost【B1】______wayisthrou
最新回复
(
0
)