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 d
Researchers have identified 1. 4 million animal species so far—and millions remain to be discovered, named, and scientifically d
admin
2012-05-17
33
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
【S4】
选项
答案
G
解析
动词辨析题。空格前为引导定语从句的that,其先行词为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://kaotiyun.com/show/z5f7777K
0
大学英语四级
相关试题推荐
A、Businesscourseshavebecomepopular.B、Theschoolonlyoffersbusinesscourses.C、Thebusinessschoolhasanewprogram.D、Th
A、anyThursdayinNovember.B、November11.C、thefirstMondayinOctober.D、the24thofNovember.C此题考查听细节的能力。解题关键在于抓住题干是现在时态,所
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost10million(14percent)ofAmerica’s69millionchi
A、flowers.B、fruitandnuts.C、Christmastrees.D、rainbowsandsunshine.C此题考查听细节的能力。大家注意审题:Whatdowedecorateourhomeswith?
A、Inagarden.B、Inthewoods.C、Atafloristshop.D、Atapostoffice.C男士想头一些花送给朋友,女士给他推荐了康乃馨。因此可知这段对话发生在一个花店里,故选C。
A、slavesB、maleC、femaleD、prisonersB文章中提到“Slaves,womenanddishonoredpeoplewerenotallowedtocompete.”,采用排除法,可确定答案是B。
Classifiedadvertisingisthatadvertisingwhichisgroupedincertainsectionsofthepaperandisthusdistinguishedfromdisp
Insteadofsimplypunishingthem,thesystemencouragesoffendersto______theirbehavior.
A、Sheownstheschool’scoffeeshop.B、SheteachesatDixieHeightsHighSchool.C、Sheseesthatthedrinksmeethealthstandard
随机试题
我国常见的民歌体裁有()。
温度的测算标准主要有()。
A、致畸作用B、二重感染C、特异反应D、后遗作用E、变态反应葡萄糖-6-磷酸脱氢酶缺乏的病人,服用磺胺药后出现溶血反应,为药物的
女性,28岁,右下腹痛、腹泻伴关节酸痛、低热半年,查体心、肺正常,腹软,右下腹触及可疑肿块,X线钡餐检查显示回盲部有钡影跳跃征象,最可能的诊断是
已知证券组合P是由证券A和B构成,证券A和B的期望收益、标准差以及相关系数如表1所示。那么,组合P的期望收益和方差为( )。
广告创意的过程的最后一个阶段是()。
《关于促进乡村旅游可持续发展的指导意见》指出,要坚持以农民为受益主体,以农业农村为基本依托,尊重农民意愿,注重农民的全过程参与,调动农民积极性与创造性。()
下列属于五经的有()。
PaperShredderPriceUsageCutTypeCommentsPrivacySolutionsPL-1500$28light
AmericansandFoodAnunusualbuttimelycartoonrecentlyappearedinthelocalnewspaper.Thesinglepanelshowedagravel-
最新回复
(
0
)