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
The Ebro Delta, in Spain, famous as a battleground during the Spanish Civil War, is now the setting for a different contest, one
The Ebro Delta, in Spain, famous as a battleground during the Spanish Civil War, is now the setting for a different contest, one
admin
2021-01-08
59
问题
The Ebro Delta, in Spain, famous as a battleground during the Spanish Civil War, is now the setting for a different contest, one that is pitting rice farmers against two enemies: the rice-eating giant apple snail, and rising sea levels. What happens here will have a bearing on the future of European rice production and the overall health of southern European wetlands.
Located on the Mediterranean just two hours south of Barcelona, the Ebro Delta produces 120 million kilograms of rice a year, making it one of the continent’ s most important rice-growing areas. As the sea creeps into these fresh-water marshes, however, rising salinity (盐分) is hampering rice production. At the same time, this sea-water also kills off the greedy giant apple snail, an introduced pest that feeds on young rice plants. The most promising strategy has become to harness one foe against the other. The battle is currently being waged on land, in greenhouses at the University of Barcelona. Scientists working under the banner "Project Neurice" are seeking varieties of rice that can withstand the increasing salinity without losing the absorbency that makes European rice ideal for traditional Spanish and Italian dishes.
"The project has two sides," says Xavier Serrat, Neurice project manager and researcher at the University of Barcelona, " the short-term fight against the snail, and a mid-to long-term fight against climate change. But the snail has given the project greater urgency. "
Originally from South America, the snails were accidentally introduced into the Ebro Delta by Global Aquatic Technologies, a company that raised the snails for fresh-water aquariums (水族馆) , but failed to prevent their escape. For now, the giant apple snail’ s presence in Europe is limited to the Ebro Delta. But the snail continues its march to new territory, says Serrat. "The question is not whether it will reach other rice-growing areas of Europe, but when. "
Over the next year and a half investigators will test the various strains of salt-tolerant rice they’ ve bred. In 2018, farmers will plant the varieties with the most promise in the Ebro Delta and Europe’ s other two main rice-growing regions—along the Po in Italy, and France’ s Rh6ne. A season in the field will help determine which, if any, of the varieties are ready for commercialization.
As an EU-funded effort, the search for salt-tolerant varieties of rice is taking place in all three countries. Each team is crossbreeding a local European short-grain rice with a long-grain Asian variety that carries the salt-resistant gene. The scientists are breeding successive generations to arrive at varieties that incorporate salt tolerance but retain about 97 percent of the European rice genome (基因组).
What is the ultimate goal of the EU-funded program?
选项
A、Cultivating ideal salt-resistant rice varieties.
B、Increasing the absorbency of the Spanish rice.
C、Introducing Spanish rice to the rest of Europe.
D、Popularizing the rice crossbreeding technology.
答案
A
解析
细节题。原文最后一段第一句话指出,作为欧盟资助的一个项目,三个国家都在进行寻找耐盐水稻品种的研究。由此可知,欧盟资助的项目是为了培育理想的耐盐水稻品种,故答案为A。B项与原文不符,原文第三段只是提及要保留水稻的吸水能力,提高水稻的耐盐度,故排除。C项原文未提及,故排除。D项与原文不符,原文最后一段提到的水稻杂交只是寻找耐盐水稻品种的一种手段,并不是目的,故排除。
转载请注明原文地址:https://kaotiyun.com/show/80P7777K
0
大学英语六级
相关试题推荐
A、Afitnessprogramofferedtothegeneralpublic.B、Aphysicalexercisetobuildupmuscles.C、Aprogramthatmakespeoplekeep
A、Theyonlyhaveeffectonrealpatients.B、Theyaremoreorlesseffectiveformostpeople.C、Theyarethebestmethodseverfo
A、Alltheseatsinthenewbuildingsarefoldback.B、Allthenewbuildingsarehigherthantheoldones.C、Thenewbuildingsar
A、Fewcompaniesspecialiseinmobileoffices.B、Mobileofficesarestillnotcommonlyused.C、Mostofthemobileofficesaresta
A、Thefactorsthataffectourdecision-making.B、Somewaystodevelopourskillsandtalents.C、Someguidelinesonhuntingpart-
A、Adoctor’sfamestrengthensthepatients’faithinthem.B、Abuseofmedicinesiswidespreadinmanyurbanhospitals.C、One-thi
Mostgrowingplantscontainmuchmorewaterthanallothermaterialscombined.C.R.Barneshassuggestedthatitisaspropert
Googlemustbethemostambitiouscompanyintheworld.Itsstatedgoal,"toorganizetheworld’sinformationandmakeitunive
A、Thereisnospacetoputinsolarunits.B、ItisdecidedbyMotherNature.C、Itisnottherighttimetouseit.D、Itcoststo
A、Theycostalotofmoney.B、Theyscattertheirinvestment.C、Theyoftenriskinvestinginunsureprojects.D、Theyarenotgood
随机试题
在妇女社会工作中,应用社会工作的个案、小组和社区方法时,一定要加入(),遵循妇女社会工作的实践原则。
在房地产业的开发阶段,其生产结构主要有哪些内容?
人们在房地产开发或投资活动中,为实现某种预定的开发、经营目标而预先垫支的资金称为()。
重视工程咨询业道德规划建设的意义在于()。
H.S的编排结构是将所有国际贸易商品按生产部门分为类;在各类内,基本上按同一起始原料或同一类型的产品设章,共有()章。
在估计可持续增长率时,通常假设内部融资的资金来源主要是()。(2010年下半年)
进口货物的增值税纳税义务发生时间为()。
测验结果的准确性或有效性的程度是()
2019年12月4日,中共中央、国务院印发《关于营造更好发展环境支持民营企业改革发展的意见》,充分肯定了我国民营经济的地位和作用,提出了有力举措,为民营企业未来发展指明方向,下列与之相关的说法错误的是:
Communitycancerclustersareviewedquitedifferentlybycitizenactiviststhanbyepidemiologists.Environmentalistsandconce
最新回复
(
0
)