首页
登录
职称英语
Researchers have identified 1.4 million animal species so far—and million
Researchers have identified 1.4 million animal species so far—and million
游客
2024-01-23
27
管理
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 (大量运算) 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【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
B)cheaper
C)classify
D)coauthored
E)come
F)effort
G)enable
H)especially
I)exactly
J)identify
K)obstacle
L)small
M)soaring
N)well-being
O)yet [br] 【C4】
选项
答案
G
解析
动词辨析题。空格所在定语从句中先行词为creatures,空格处需要填入一个动词作谓语。结合所给选项可知,只有动词enable符合句意,此处意为“那些对农业、渔业、新药品和能源至关重要的生物”。
转载请注明原文地址:https://tihaiku.com/zcyy/3387743.html
相关试题推荐
[originaltext]MillionsofbeeshavediedinSouthCarolinaduringaerialins
[originaltext]MillionsofbeeshavediedinSouthCarolinaduringaerialins
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
随机试题
HamburgersandFrenchfriescanbegotat______thefastfoodrestaurants.[br]
Everyoneinterviewed______(都受到了不公正的待遇).hadbeensubjectedtounfairtreatment①根
FrequentbusinesstravelerJoyceGioiaforgotmorethan$20000worthofje
Therewasatimewhen,ifaladygotontoacrowdedbusortrain,agentlema
[originaltext]M:Lisa,Lisa!Overhere,darling!It’swonderfultoseeyou.Oh,
某施工单位对报警阀组进行安装,下列做法错误的是()。A.在供水管网试压、冲
根据《测绘合同》示范文本规定,下列关于甲方违约责任说法错误的是( )。A.合同
A.5° B.15°~30° C.30°~40° D.50°~60° E
A.内分泌失调 B.舔唇不良习惯 C.机体抵抗力下降 D.残根残冠刺激
重大食品安全事故涉及两个以上省、自治区、直辖市的,由()组织事故责任调查。
最新回复
(
0
)