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
Researchers have identified 1. 4 million animal species so far—and millions remain to be discovered, named, and scientifically d
Researchers have identified 1. 4 million animal species so far—and millions remain to be discovered, named, and scientifically d
admin
2012-05-17
38
问题
Researchers have identified 1. 4 million animal species so far—and millions remain to be discovered, named, and scientifically described. So how much would it actually cost to【S1】______every animal on Earth? A pair of Brazilian scientists has crunched (详细计算) the numbers and【S2】______up with an answer: $263 billion.
That’s way more than the $ 5 billion that famed Harvard University biologist Edward O. Wilson estimated back in 2000—and that was for every species on Earth, not just animals. But even $ 263 billion would be a【S3】______price to pay to understand the creatures that【S4】______such essentials as agriculture, fisheries, new drugs, and energy sources, says ornithologist (鸟类学家) Joel Cracraft of the American Museum of Natural History in New York City. "Literally, the world economy runs on biodiversity," he says. "People don’t understand really, deeply how much we depend on biodiversity."
Most biologists agree that with extinction rates【S5】______and climate change looming, the【S6】______to document the planet’s biodiversity—or biota (生物区)—is urgent,【S7】______considering the essential role these life forms play in crop pollination, clean air, and other aspects of human【S8】______"We are losing species by extinction faster than we are describing new species" according to some estimates, says biologist Antonio Marques, who【S9】______the new paper with Fernando Carbayo, both at the University of St. Paulo in Brazil. "We have to know the biota to preserve and conserve the biota," he says.
Besides the money, another huge【S10】______to a complete understanding of the animal kingdom is a global shortage of taxonomists (分类学家), experts say.
A) obstacle F) cheaper K) attempt
B) classify G) enable L) coauthored
C) especially H) come M) soaring
D) effort I) small N) well-being
E) identify J) exactly O) yet
【S7】
选项
答案
C
解析
副词辨析题。空格后有动词considering,根据句子的语境可知此处应填人副词修饰动词。结合备选项,只有副词especially“特别;尤其”符合此处句意,故选especially。
转载请注明原文地址:https://kaotiyun.com/show/Off7777K
0
大学英语四级
相关试题推荐
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudents.Ifalongreadingassignmentisgiven,instr
Manyteachersbelievethattheresponsibilitiesforlearningliewiththestudents.Ifalongreadingassignmentisgiven,instr
A、AtOlympics,sporthasbeenruined.B、AtOlympics,doctorsmustbetakeninthesportswiththeathlete.C、AtOlympics,somea
A、Businesscourseshavebecomepopular.B、Theschoolonlyoffersbusinesscourses.C、Thebusinessschoolhasanewprogram.D、Th
A、Bobwillprobablyremainangryuntilthemanapologizes.B、Bobmightnotbereallyangrywiththeman.C、Bobhasalsobeenmad
Ifeveryouarecalled【C1】______tointroduceaspeaker;itwouldbewellforyoutobearin【C2】______thatyouhavearesponsibil
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost10million(14percent)ofAmerica’s69millionchi
Thelongyearsoffoodshortageinthiscountryhavesuddenlygivenwaytoapparentabundance.Storesandshopsarechokedwith
A、Bytalkingtoanexpert.B、Byreadinganarticle.C、Byattendinganexerciseclass.D、Bylisteningtotheradio.B
A、slavesB、maleC、femaleD、prisonersB文章中提到“Slaves,womenanddishonoredpeoplewerenotallowedtocompete.”,采用排除法,可确定答案是B。
随机试题
房产税是一种()
A.盆腔淋巴结B.腹股沟淋巴结C.锁骨上淋巴结D.主动脉旁区淋巴结E.髂血管周围淋巴结以下肿瘤转移的首先部位是
患者,女,37岁。经常不易入睡,急躁易怒,胸胁胀满,舌红,脉弦。针灸时选
某工程项目,建设单位通过招标选择了一具有相应资质的监理单位承担施工招标代理和施工阶段监理工作。在施工公开招标中,有A、B、C、D、E、F、G、H等施工单位报名投标,经监理单位资格预审均符合要求,但建设单位以A施工单位是外地企业为由不同意其参加投标,
海关不必经过直属海关关长或其授权的隶属海关关长批准就能实施的行为有()。
关于企业内部研究开发项目的支出,下列说法中错误的是()。
知识学习的心理过程分为()
()对于酿造相当于佳肴对于()
原核生物RNA聚合酶参与转录全过程的亚基是
栈中允许进行插入和删除的一端叫做______。
最新回复
(
0
)