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
9
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] 【C1】
选项
答案
J
解析
动词辨析题。空格前面为动词不定式符号to,而空格后为名词短语,说明此处需填动词。文章第一句说研究人员已经确定了很多种动物种类,但仍有数以百万计的种类等待被发现,所以第二句承接前一句的意思,问要识别这些动物种类需要花费多少钱,因此动词identify“识别”符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3387740.html
相关试题推荐
[originaltext]Roadtrafficcrasheskill1.25millionpeopleeachyearworld
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext](5)Anewspeciesofsnakehasbeendiscoveredonaremoteis
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Scientistshaveidentifiedthousandsofknownantspeciesaround
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
[originaltext]Araccoon,asmallcat-likeanimal,climbedtothetopofa25
随机试题
RobSapp,27,fromKent,lovedgameswhenhewasattendingschool.Infact,
Nooneshouldbeforcedtowearauniform【C1】______anycircumstance.Uniform
[originaltext]W:Ihearit’sgoingtosnowthisafternoon.M:Goingtosnow?Th
在图形显示装置(CRT)信息指示部分中的说明中,()亮,表示有设备处于被屏蔽状
A.大 B.小 C.相等 D.无法判断
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
在招聘广告中不出现招聘企业名称的广告称为()。A.隐瞒广告 B.秘密广告
某期货公司接受客户李某委托为其进行白糖期货交易,李某根据白糖期货近期的表现,总结
关于中途站布设的原则,下列表述正确的有()。A:方便乘客乘车、换乘 B:减少十
人才管理的主要内容包括()。A.构建灵活多样的人才获取途径,实现动态人才匹配
最新回复
(
0
)