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
45
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/2794167.html
相关试题推荐
[originaltext]Aboutfiftydifferentvitaminshavebeenidentified,andade
Protestsattheuseofanimalsinresearchhavetakenanewandfearfulchar
Protestsattheuseofanimalsinresearchhavetakenanewandfearfulchar
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"
随机试题
Completethenotesbelow.WriteNOMORETHANTWOWORDSAND/ORANUMBERforeach
Contrasttoresearchers’expectations,dysfunctionalfamilyrelationshipsan
Allyoudonowis_______yourhomework.A、completeB、completingC、havingcomplete
Theyhavelonghadtodealwithaseriesoffaultsandviruses.【D1】______now
采用偏心核心筒的高层住宅,其优点是( )。A.各向均衡对称、结构稳定性好 B
正确识别潜在的人身风险是家庭财务保障规划中最为重要的一个环节,下列不属于由人身风
分析下面谱例。 要求: (1)标明调式调性。(2分) (2)写出曲式结
【教学过程】 环节一:课堂导入 提问导入,教师提问:我们之前学过的中华文化的特点是什么? 学生回答,教师提问:中华文化的特点从时间上源远流长,从内容
申请设立期货公司,应当符合《公司法》的规定,其应具备的条件包括()A.注册资本
一般适用于工业领域中的石化、交通、电力部门和高层建筑内的柴油发电机房、燃油锅炉等
最新回复
(
0
)