首页
登录
职称英语
Researchers have identified 1.4 million animal species so far—and millions re
Researchers have identified 1.4 million animal species so far—and millions re
游客
2023-06-26
20
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 (大量运算) 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 (分类专家), 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] 【C4】
选项
答案
G
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2783333.html
相关试题推荐
[originaltext]Millionsofwordshavebeenwrittenaboutyoungpeopleinthe
[originaltext]Attheendofeveryyear,U.S.weatherresearcherslookback
[originaltext]OnehundredandthirteenmillionAmericanshaveatleastone
[originaltext]OnehundredandthirteenmillionAmericanshaveatleastone
[originaltext]Millionsofwordshavebeenwrittenaboutyoungpeopleinthe
[originaltext]Millionsofwordshavebeenwrittenaboutyoungpeopleinthe
[originaltext]Scientistshavediscoveredaspeciesofsongbirdthatperforms
[originaltext]Scientistshavediscoveredaspeciesofsongbirdthatperforms
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshave
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshave
随机试题
HowtoEnsureSurvivalintheCollegeDormLifeincolleged
[originaltext]M:Weren’tyougoingtoconfirmyourbookingatthehotel?W:You
TVLinkedtoLowerMarksA)Theeffectoftelevisiononchild
某患者行烤瓷全冠修复,试戴后冠的边缘适合性好,经调牙合无早接触后选择聚羧酸黏固剂
小儿呼吸心跳骤停的主要直接原因:A.窒息 B.严重外伤 C.心肌炎 D.电
Thechangeinthatvillagewasmiraculou
A.阿托品B.新斯的明C.美加明D.琥珀胆碱E.筒箭毒碱易产生低血压、便秘、口干
3,19,43,79,133,()。A.169 B.205 C.214 D
关于工程竣工档案编制及移交的要求,不正确的是()。A.项目竣工档案一般不少于两
A.解磷定 B.苯海索(安坦) C.新斯的明 D.哌替啶 E.左旋多巴有
最新回复
(
0
)