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
"Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow in
"Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow in
admin
2009-06-15
75
问题
"Salty" Rice Plant Boosts Harvests
British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.
Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty.
The pair have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice.
It is estimated that each year more than 100 hectares (公顷) of agricultural land are lost because salt gets into the soil and stunts (妨碍生长) plants. The problem is caused by several factors. In the tropics, mangroves (红树林) that create swamps (沼泽) and traditionally formed barriers to sea water have been cut down. In the Mediterranean, a series of droughts have caused the water table to drop, allowing sea water to seep (渗透) in. In Latin America, irrigation often causes problems when water is evaporated (蒸发) by the heat, leaving salt deposits behind.
Excess salt then enters the plants and prevents them functioning normally. Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.
To overcome these problems, Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants’ growth. They have started to breed these characteristics into a new rice crop, but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.
Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again, providing much needed food in the poorer countries of the world.
选项
A、They are students at Sussex University.
B、They are rice breeders.
C、They are husband and wife.
D、They are colleagues at an institution of higher learning.
答案
D
解析
根据选项的内,容特点判定问题是在问这两个人之间的关系。该题考察考生根据文章细节进行推断的能力。利用题干中的特征词Flowers and Yeo作为答案线索,这样找到答案相关句:(British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences, have spent several years researching how crops,such as rice,could be made to grow in water that has become salty.划线句内容表明Flowers and Yeo是来自生物科学研究院的研究工作者,结合上下文结构特点:上一段的内容说“英国科学家……”,“他们的工作……”,然后紧接着文章就明确提到具体的研究者名字,从这里我们可以推断出的结论是这相邻两段的逻辑关系是概述和具体举例说明。因此可以推出的结论是:这两个人是科学家,是从事生物研究的工作者。
转载请注明原文地址:https://kaotiyun.com/show/8DFd777K
本试题收录于:
职称英语综合类B级题库职称英语分类
0
职称英语综合类B级
职称英语
相关试题推荐
We’veseenamarkedshiftinourapproachtothesocialissues.
ContinuetoProtectorDestroyEcosystemBiosphereIIwasaspectacularfailure.Thegleamingglass-and-concretehabitatspr
BlackHoles1.Blackholescanbebestdescribedasasortofvacuum,suckingupeverythinginspace.Scientistshavediscov
TheWeightExperimentNicolaWaltershasbeentakingpartinexperimentsinScotlandtodiscoverwhyhumansgainandlosewe
TheWeightExperimentNicolaWaltershasbeentakingpartinexperimentsinScotlandtodiscoverwhyhumansgainandlosewe
Thereasonfortheirunusualbehaviorremainsapuzzle.
HowDidSheConquertheAmericans?African-AmericantalkshowqueenOprahWinfreyistheworld’smostpowerfulcelebrity,acc
HackThefirstbig-namehackersincludedSteveWozniak,BillGatesandLinusTorvalds,allnowhighlyrecognizablenamesbeh
"Iamnotmeddling."Marysaidmildly,"I’mjustcurious."
Shewasclosetosuccess.
随机试题
社区工作者接触居民,要求社会工作者能够在意居民,并顾及居民的情况,为居民着想。这属于()技巧。
党的思想建设的根本任务是什么?
YouareaGermanlivinginBerlin.Onedayyou’rewalkingdowninastreetmindingyourownbusiness,whensuddenlyastrangera
股骨干下1/3骨折时骨折端移位方向是()
权证发行人应在权证发行结束后1个工作日内,将权证发行结果报送证券交易所,并提交权证上市申请材料。( )
2012年度中国公民赵某有如下所得:(1)每月工资3000元,已按照所在省规定的办法和比例扣除了住房公积金和各项社会保险费720元,12月份取得除当月工资外的年度绩效工资30000元。(2)2011年10月赵某出售自有住房,取得转让收入100万元,并以纳
准备对某对象做出某种反应的意向或意图称之为态度的认知成分。()
(2018·辽宁)心理学研究认为,学习动机水平与学习效率的关系是()
WhenhisdaughterMarywentoutforhereveningwalkDoctorCochransatforanhouralonemhisoffice.Itbegantogrowdarkan
Whatarethespeakersmainlydiscussing?
最新回复
(
0
)