首页
登录
职称英语
Researchers have identified 1.4 million animal species so far—and millions r
Researchers have identified 1.4 million animal species so far—and millions r
游客
2024-01-31
38
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(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 [br] 【C7】
选项
答案
H
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3410433.html
相关试题推荐
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
[originaltext]Today,millionsofpeoplerunintheUnitedStates.Manymore
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
随机试题
RobertEllisSmithbelievesidentitytheftisdifficulttodetectandonecanha
[originaltext]M:Amy,whatwasyourfirstjob?W:Well,whenIgraduatedfromt
Thousandsofpapersaresubmittedevery
图示等截面直杆,拉压刚度为EA,杆的总伸长为( )。 A.2Fa/(EA)
下列关于国家风险的表述中.正确的是()。A.国家风险是指经济主体在与非本国居民
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
企业管理的社会性主要取决于()。A.社会生产关系的性质 B.生产力的发展水平
2010~2014年中国电子商务发展状况 ?2013年,平均每个网
下列各项表述不正确的是()。A.因共有不动产份额变化而发生房屋权属转移的,
A.粉尘游离SiO含量50%~80% B.粉尘游离SiO含量>10/% C.
最新回复
(
0
)