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 de
Researchers have identified 1.4 million animal species so far—and millions remain to be discovered, named, and scientifically de
admin
2017-04-28
28
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【C1】______every animal on Earth? A pair of Brazilian scientists has crunched(详细计算)the numbers and【C2】______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【C3】______price to pay to understand the creatures that【C4】______such essentials as agriculture, fisheries, new drugs, and energy sources, says ornithologist(鸟类专家)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【C5】______and climate change looming, the【C6】______to document the planet’s biodiversity—or biota(生物区)—is urgent,【C7】______considering the essential role these life forms play in crop pollination, clean air, and other aspects of human【C8】______"We are losing species by extinction faster than
we are describing new species" according to some estimates, says biologist Antonio Marques, who【C9】______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【C10】______to a complete understanding of the animal kingdom is a global shortage of taxonomists(分类学家), experts say.
A)attempt F)effort K)obstacle
B)cheaper G)enable L)small
C)classify H)especially M)soaring
D)coauthored I)exactly N)well-being
E)come J)identify O)yet
【C4】
选项
答案
G
解析
转载请注明原文地址:https://kaotiyun.com/show/C0i7777K
0
大学英语四级
相关试题推荐
传统的中国音乐可以追溯到7000到8000年前,这基于对一只新石器时代(theNeolithicAge)骨头做成的笛子(flute)的发现。在夏商周时期,只有皇家和达官显贵(dignitaryofficials)才能享受发自编钟(chime)和铜
A、Theyareloyaltopeople.B、Theyarecuteandfurry.C、Theyarequietandclean.D、Theycanprotectpeople.A
A、Toimitatetheirworkingstyle.B、Toberecognizedassuccessful.C、Tobelesshardworking.D、Tomakefriendswiththem.A
A、Itearnsmoneyfromthestudents.B、Itorganizessummercamps.C、Itraisesmoneyfromcommonpeople.D、ItislocatedinNewYo
AnewstudyfromtheUniversityofNewSouthWaleshasdiscoveredthatduringtheworkingweek,Australianfathersonlyspendan
PeopleworldwidecelebrateNewYearindifferentways.InLatinAmerica,peopleexpresstheirhopesthroughthecoloroftheiru
Don’tletvacationsorbusinesstravelsideline(使退出)yourexerciseroutine.Physicalactivityisagreatwayto【C1】_____stressan
ThingsYouCan’tSayinCanadaA)Attackingoursacredcows(thingsorpeoplethatcannotbecriticized)mayturnyouintoo
A、At5p.m.B、Tomorrow.C、At5o’clock.D、Inafewminutes.D细节题。题目问的是男士什么时候取回他的手表。对话中女士说下午五点钟可以吗,男士回答说恐怕不行,得明天了,然后女士说,那这样的话我现在就
ToHelptheKids,ParentsGoBacktoSchool[A]Forafewyearsnow,everyparentofanewbornbabyintheSouthFloridadistrict
随机试题
在相对比较法中,如果认为风险事件偶尔会发生,并且能预期将来有时会发生,这种风险事件发生的概率属于()。
减少二氧化碳排放的途径主要是节能________。
下列除哪个外,均属于参与生物体组成的生物大分子
我国《民法通则》第147条规定:“中华人民共和国公民和外国人离婚适用受理案件的法院所在地法律。”下列有关这条冲突规范的表述中,哪些是正确的?
下列选项中,()可使旋风除尘器的效率降低。
某市一安居工程包括三批住宅、一所学校和一家医院,对所有的建筑单位采取公开招标的方式,由招标单位委托某招标代理机构组织招投标活动,此招标代理机构在市建设工程交易信息网及建设工程交易中心发布了招标公告,招标公告明确,当资格预审合格的投标申请人过多时,招标人按照
证券营业部应制定重大突发事件应急处理预案,定期组织自查,按规定进行演练,自查及演练情况以书面方式保存的时间不少于()年。
你与同事交往时,常用的方式是()。
VisualBasic中的控件分为3类,它们是标准控件、【】和可插入对象。
Itisnotthe"somedayIwillwinthelottery"kindofdaydream,butthekindthattapsintothehiddenpartofyourbrain.That
最新回复
(
0
)