首页
登录
职称英语
Researchers have identified 1.4 million animal species so far—and million
Researchers have identified 1.4 million animal species so far—and million
游客
2024-01-23
44
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【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
B)cheaper
C)classify
D)coauthored
E)come
F)effort
G)enable
H)especially
I)exactly
J)identify
K)obstacle
L)small
M)soaring
N)well-being
O)yet [br] 【C4】
选项
答案
G
解析
动词辨析题。空格所在定语从句中先行词为creatures,空格处需要填入一个动词作谓语。结合所给选项可知,只有动词enable符合句意,此处意为“那些对农业、渔业、新药品和能源至关重要的生物”。
转载请注明原文地址:https://tihaiku.com/zcyy/3387743.html
相关试题推荐
[originaltext]MillionsofbeeshavediedinSouthCarolinaduringaerialins
[originaltext]MillionsofbeeshavediedinSouthCarolinaduringaerialins
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
随机试题
[originaltext]M:Hi,I’mfromtheStudents’Union.We’redoingasurveyofstud
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
29岁男性患者,左上前牙不慎撞断1天,冷热刺激痛,要求修复。口腔检查示左上2外伤
治疗口舌生疮、小便短赤首选A.茯苓 B.滑石 C.竹叶 D.芦根 E.浮
为保护投资者权益,证券公司应在代销金融产品前进行必要的( )。A.委托人资格审
共用题干 王先生夫妇今年都刚过40岁,年收入20万元左右,打算60岁退休,估计
交流单芯、分相电缆穿过金属护板时,金属护板不应形成()。闭合磁路$;$接地$
资产负债表中“固定资产”项目应根据“固定资产”账户余额直接填列()。
对于这种观点:“t检验适用于样本容量小于30的情况,而大样本才适合使用z检验。”
关于劳动合同试用期问题,说法正确的是( )。A.劳动合同期限三个月以上不满一年
最新回复
(
0
)