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
3
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] 【C9】
选项
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3410435.html
相关试题推荐
[originaltext]Millionsofbabiesandchildrencouldsoonbeprotectedagain
[originaltext]Millionsofbabiesandchildrencouldsoonbeprotectedagain
[originaltext]Millionsofbabiesandchildrencouldsoonbeprotectedagain
[originaltext](19)Researcherssaytheprospectofweightgainmakessomes
[originaltext]Roadtrafficcrasheskill1.25millionpeopleeachyearworld
[originaltext]MalawiisoneofthepoorestnationsinAfricawithmillions
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
[originaltext]TheUnitedStates’jobmarkethasmillionsofunfilledjobs.
[originaltext]TheUnitedStates’jobmarkethasmillionsofunfilledjobs.
[originaltext](3)Morethan100millionpeopleinNigeriaarenotconnected
随机试题
Everychemicalchangeeitherresultsfromenergybeingusedtoproducethechang
[originaltext]W:Hi,Bill,howisitgoing?M:Oh,hi,Jan.I’mOK.Howabouty
Thoseouttodemolisholdbuildingsoftenarguethatafactorywillbringpr
引起急性肾小球肾炎的最常见病因是()A.β-溶血性链球菌 B.乙族甲组溶
患者男,32岁,以"发热伴乏力、恶心10天"为主诉入院。10天前无明显原因出现发
患者,女性,28岁。分娩时会阴部侧切,现切口部位出现红、肿、热、痛,给予红外灯局
我国《担保法》规定数额不得超过主合同标的额20%的是()。(2009年真题)
利用“光控开关”和“声控开关”可以节约居民楼里楼道灯的用电。其中“光控开关”能在
对未完成义务教育的未成年犯和被采取强制性教育措施的未成年人应当进行义务教育,所需
在税务行政复议期间发生的下列情形中,应当终止行政复议的是( )。 A.作为
最新回复
(
0
)