首页
登录
职称英语
Researchers have identified 1. 4 million animal species so far—and millions
Researchers have identified 1. 4 million animal species so far—and millions
游客
2023-07-20
28
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【S1】______every animal on Earth? A pair of Brazilian scientists has crunched (详细计算) the numbers and【S2】______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【S3】______price to pay to understand the creatures that【S4】______such essentials as agriculture, fisheries, new drugs, and energy sources, says ornithologist (鸟类学家) 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【S5】______and climate change looming, the【S6】______to document the planet’s biodiversity—or biota (生物区)—is urgent,【S7】______considering the essential role these life forms play in crop pollination, clean air, and other aspects of human【S8】______"We are losing species by extinction faster than we are describing new species" according to some estimates, says biologist Antonio Marques, who【S9】______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【S10】______to a complete understanding of the animal kingdom is a global shortage of taxonomists (分类学家), experts say.
A) obstacle F) cheaper K) attempt
B) classify G) enable L) coauthored
C) especially H) come M) soaring
D) effort I) small N) well-being
E) identify J) exactly O) yet [br] 【S6】
选项
答案
D
解析
名词辨析题。空格前为定冠词the,因此空格处应该填入名词。根据上下文及本句句意,对地球上的生物种类进行备份并不是轻而易举的事,需要一番努力,故effort“努力;精力”符合句意。
转载请注明原文地址:https://tihaiku.com/zcyy/2852226.html
相关试题推荐
Mostpeoplethinkofzoosassafeplacesforanimals,wherestrugglessucha
Mostpeoplethinkofzoosassafeplacesforanimals,wherestrugglessucha
Mostpeoplethinkofzoosassafeplacesforanimals,wherestrugglessucha
Asresearcherslearnmoreabouthowchildren’sintelligencedevelops,theya
Asresearcherslearnmoreabouthowchildren’sintelligencedevelops,theya
Asresearcherslearnmoreabouthowchildren’sintelligencedevelops,theya
Asresearcherslearnmoreabouthowchildren’sintelligencedevelops,theya
[originaltext]Animalsperformmanyusefulandentertainingjobs.Dogsarep
[originaltext]Animalsperformmanyusefulandentertainingjobs.Dogsarep
[originaltext]Petownersarebeingencouragedtotaketheiranimalstowork
随机试题
短期出口信用保险承保管理中,一项最经常也是最重要的工作是必须()。A.认真研
欧元对美元升值11%,意味者美元对欧元相对升值11%()
如果一个系统中没有大型计算机或文件服务器,其处理是由一系列微机完成的,那么这个网
假设某商业银行存在负债敏感型缺口,则市场利率上升会导致银行的净利息收入( )。
芦根具有的功效是A、除烦、止呕、利尿 B、除烦、止泻、利尿 C、泻火、止泻、
2012年,某省规模以上工业增加值10875亿元,比上年增长7.1%,月度增速从
具有化瘀止血利尿作用的药物是A.蒲黄B.三七C.白及D.棕榈炭E.茜草
(2015年真题)中国期货业协会应当定期向()报告期货从业人员管理的有关情
下列行为中,()可以进行行政复议。A.人力资源社会保障部门做出的行政处分
慢粒最突出的体征为A.贫血貌 B.浅表淋巴结肿大 C.皮肤瘀斑 D.肝大
最新回复
(
0
)