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
24
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
【C1】
选项
答案
J
解析
转载请注明原文地址:https://kaotiyun.com/show/mNZ7777K
0
大学英语四级
相关试题推荐
A、Coldandwet.B、FairlypleasantC、Surprisinglyhot.D、Ofgreatvariety.D细节题。ofgreatvariety是awiderange的同义表达,故D正确。
A、Hevisiteditinperson.B、Helearnedfromafriendaboutit.C、Hereadofitinamagazine.D、Heknewthesculptor.C对话中男士说:“
A、Povertyandlackofeducation.B、Localculturethatundervalueschildren.C、Thelowlegalageformarriage.D、Highrisksofbe
A、Aboutsevenmillion.B、HalfoftheAmericanpopulation.C、25%ofAmericanpeople.D、About25million.A
A、Gotothedentist’s.B、Cleanthehouse.C、Walkthedog.D、Finishherassignment.B
Theriseofmultinationalcorporations(跨国公司),globalmarketing,newcommunicationstechnologies,andshrinkingculturaldiffere
ThingsYouCan’tSayinCanadaA)Attackingoursacredcows(thingsorpeoplethatcannotbecriticized)mayturnyouintoo
WhatYouriPadKnowsAboutYou[A]You’vefinallyfinishedthebookyourco-workerrecommended,sowhattoreadnext?Ifitis5
A、Theweight.B、Theingredients.C、Theproductionprocess.D、Thenameoftheproducts.C
A、Theythinkitlookslikeflowers.B、Theythinkitisfullofpassion.C、TheyuseittoshowrespectforChrist.D、Theythinki
随机试题
机动车使用已有裂纹或损伤的轮胎行驶容易引起什么后果?
管理控制通过(),可以发现管理活动中的不足之处。
已知曲线y=f(x)过原点且在点(x,y)处的切线斜率等于2x+y,求此曲线方程.
以下各项关于票据的当事人的叙述,哪一项是错误的?()
安全生产监督管理的基本特征是权威性、强制性和______。
下列属于部门规章的内容是()。
赵某乘一女工深夜行走至无人处时,大喝一声“放下包”,该女工听到喊声,扔包便跑,赵某的行为构成()。
一种由目标或者对象引导、激发和维持的个体活动的内在的心珲过程或者内部动力指的是()
Forreasonsyettobefullyunderstood,oneoutoftenhumanbeingsintheworldisleft-handed,andfromonegenerationtothe
A、SheistheassistantofProfessorJohnson.B、Sheknewalotabouttheschool.C、SheworkedasProfessorJohnson’sassistantbe
最新回复
(
0
)