首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Researchers have identified 1.4 million animal species so far—and millions remain to be discovered, named, and scientifically de
Researchers have identified 1.4 million animal species so far—and millions remain to be discovered, named, and scientifically de
admin
2019-04-27
135
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
【C10】
选项
答案
K
解析
转载请注明原文地址:https://kaotiyun.com/show/ENZ7777K
0
大学英语四级
相关试题推荐
Directions:Nowadays,althoughpeople’slivingstandardsimproved,manypeoplefeelunhappy.Happinesshasbecomeaprevailingt
Directions:Collegestudentshavelongbeenasocialfocus.Eachyearwecanfindthatmanyundergraduatescannotfindagoodjo
A、Itallowshimtomakealotoffriends.B、Itrequireshimtoworklonghours.C、Itenableshimtoapplytheorytopractice.D、
7SecretTestsofAttractionA)You’reasmart,attractiveperson.Soyouwouldn’tbesurprisedifoneofyourfriendsgottheh
A、Thelivesoftheirparents.B、Makingabetterlifeforallpeople.C、ThetroubleinAmericanfamilies.D、Thestrongopinions.
A、Aboutsevenmillion.B、HalfoftheAmericanpopulation.C、25%ofAmericanpeople.D、About25million.A
A、Itcostslessmoney.B、Itcanbefoundinlakes.C、Itismoreefficient.D、Itispoisonousaswell.A
Unemployment-insurance(UI)benefitsfirstpassedin2008andextendedseveraltimes.America’sgovernmenthasenactedsuchmeas
Antarcticaistheonlycontinentwheretherehasneverbeenwar.Nomilitaryactivityisallowedthereandscientificresearchi
A、Interesting.B、Wealthy.C、Respectful.D、Talented.D细节题。ofmanytalents意为talented,故D正确。C项Respectful意为“有礼貌的,恭敬地”,不正确,若是换成Respect
随机试题
还价的基础是()
Makethefavorableimpressionbymakingyourwords______withyourbodylanguageandappearance.
下列关于城市生态系统物质循环的表述正确的是()。
力学性能良好,尤其塑性、韧性优良,能适应多种腐蚀环境,多用于食品加工设备、化学品装运容器、电气与电子部件、处理苛性碱设备、耐海水腐蚀设备和换热器,也常用于制作接触浓CaCl2溶液的冷冻机零件,以及发电厂给水加热器管的合金为()。
下列不能成为背信运用受托财产罪的犯罪主体的是()。
在可行权日之后,与现金结算的股份支付有关的应付职工薪酬公允价值发生变动的,企业应将该变动金额计入()。(2014年)
在幼儿教学活动中,提供交流机会最多的是()
收藏的功利性并不会削弱收藏作为高雅文化艺术活动的魅力,反而能够促进收藏事业的发展。从古至今,纯粹的非功利性的收藏可以说绝无仅有。保值、增值的客观需求,促使人们对各类器物的鉴定和欣赏水平不断提升。如果离开一定的历史条件来奢谈所谓纯粹的收藏鉴赏,对于收藏事业来
“课程的组织应心理学化,应该考虑到儿童心理发展的次序。”这种观点属于
以下不能用来创建HTML文档的编辑器是()。
最新回复
(
0
)