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] 【C9】
选项
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794169.html
相关试题推荐
[originaltext]Medicalresearchershaveaccusedthemanufacturersofbabymi
[originaltext]Manisalandanimal,butheisalsocloselytiedtothesea.
[originaltext](1)Whenadoglosesaleg.theanimaleventuallyfiguresout
[originaltext](1)Whenadoglosesaleg.theanimaleventuallyfiguresout
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Millionsofteenagersareindangerofputtingtheirhealthatriskbygetti
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswho
随机试题
WhichofthefollowingEnglishsoundsisNOTbilabial?A、[p]B、[m]C、[b]D、[f]D双
Hedrovetotheairportto______Mr.DixonwhocametoseehimfromOrillia.A、pic
They(excite)______aboutseeingtheirparentsagain.are/wereexcited再次见到父母他们很激
()由监理单位制定的指导监理工作开展的纲领性文件。它起着指导监理单位规划自
在下列选项中,属于意志行动前提的是()。A.克服困难 B.目的性 C.
在不同的时间内用同一测验重复同一受测者,所得结果的一致性被称为().
关于工作满意度的影响后果的说法,错误的是( )。[2013年真题]A.高工作满
下列关于合同中是否存在已识别资产的表述,正确的有()。A.甲公司(客户)与
()关系到明挖法实施的成败。A.围护结构及其支撑体系 B.查明地质条件
下列关于成本管理的任务的说法,错误的是()。A.成本计划按照其发挥的作用可以分
最新回复
(
0
)