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
2023-06-29
52
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] 【C6】
选项
答案
F
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794166.html
相关试题推荐
[originaltext]MalawiisoneofthepoorestnationsinAfricawithmillions
[originaltext]MalawiisoneofthepoorestnationsinAfricawithmillions
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
[originaltext](3)Morethan100millionpeopleinNigeriaarenotconnected
[originaltext](3)TheAustralianpopulationisexpectedtoreach24million
[originaltext](3)TheAustralianpopulationisexpectedtoreach24million
[originaltext]Morethan22millionpeoplewholiveintheUniteStatedon’t
[originaltext]Morethan22millionpeoplewholiveintheUniteStatedon’t
[originaltext]Morethan22millionpeoplewholiveintheUniteStatedon’t
随机试题
Thishasbeenquiteaweekforliterarycoups.Inanalmostentirelyunexpecte
[originaltext]M:Wouldyouliketogotothebeachthisafternoon?BillandMar
OxfordUniversityoncefamouslyclaimedtohavebeenfoundedbyAlfredtheG
AtthestartofhertalkRebeccapointsoutthatnewgraduatescanfindithard
Changesinthewaypeoplelivebringaboutchangesinthejobsthattheydo.
December1stisWorldAIDSDay.The【B1】______thisyearis"LiveandLetLiv
[originaltext]W:Wouldyouliketojoinusforaridearoundtheharbor?M:Wha
关于基金估值,以下表述正确的是( ).A.基金估值的第一责任主体为基金管理人
与青霉素相比,阿莫西林A.对β-内酰胺酶稳定 B.对耐药金黄色葡萄球菌有效
不是抗凝药禁忌证的是A.严重高血压病 B.活动性肺结核 C.肝肾功能不全
最新回复
(
0
)