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
考研
In recent years a new farming revolution has begun, one that involves the【1】of life at a fundamental level-the gene. The study o
In recent years a new farming revolution has begun, one that involves the【1】of life at a fundamental level-the gene. The study o
admin
2011-02-25
32
问题
In recent years a new farming revolution has begun, one that involves the【1】of life at a fundamental level-the gene. The study of genetics has【2】a new industry called biotechnology. As the name suggests, it【3】biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to【4】seeds that give a high yield, that【5】disease, drought and frost, and that reduce the need for【6】chemicals. If such goals could be achieved, it would be most【7】. But some have raised concerns about genetically engineered crops.
In nature, genetic diversity is created within certain【8】. A rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering【9】usually involves taking genes from one species and inserting them into another【10】to transfer a desired characteristic. This could mean, for example, selecting a gene which leads to the production of a chemical with anti-freeze【11】from an arctic fish, and inserting it into a potato or strawberry to make it frost-resistant.【12】, then, biotechnology allows humans to【13】the genetic walls that separate species.Like the green revolution,【14】some call the gene revolution contributes to the problem of genetic uniformity-some say even more【15】geneticists can employ techniques such as cloning and【16】culture, processes that produce perfectly【17】copies. Concerns about the erosion of biodiversity, therefore, remain. Genetically altered plants, however, raise new【18】, such as the effect they may have on us and environment. ".We are flying blindly into a new【19】of agricultural biotechnology with high hopes, few constraints and little idea of the potential【20】," said science writer Jemery Rifkin.
选项
A、navigation
B、mystery
C、outcome
D、destination
答案
C
解析
考查词义辨析。navigation意为“航空,航海”;mystery意为“神秘”;outcome意为“结果,后果”;destination意为“目的地”。potential修饰所填的词,根据上文的“little idea of”可知选项C正确。
转载请注明原文地址:https://jikaoti.com/ti/q77RFFFM
0
考研英语一
相关试题推荐
Maintainingclassroomdisciplineisagrowingproblemformanyschools.(46)Somechildrenseemincapableoffollowingtherules,
Maintainingclassroomdisciplineisagrowingproblemformanyschools.(46)Somechildrenseemincapableoffollowingtherules,
Maintainingclassroomdisciplineisagrowingproblemformanyschools.(46)Somechildrenseemincapableoffollowingtherules,
ItcanbeinferredfromtheopeningparagraphthatTheattemptstofosterwomen’scareermadebyGeneralElectricaremotivated
ThetextismainlyaboutTheCeltshelpedFrancetoresist
SoBig.Fwasthemorevisibleofthetworecentwavesofinfection,becauseitpropagateditselfbye-mail,meaningthatvictims
Thebiggestdangerfacingtheglobalairlineindustryisnottheeffectsofterrorism,war,SARSandeconomicdownturn.Itisth
"Quiteanumberofstudentsgaveexcellentanswerstomylastquestion,"saidtheprofessorinhis______onourperformanceinth
Thecampusissosmallthatthereisn’tevenaconvenientplaceforstudentsto______betweenclasses.
随机试题
裂变思维是指在思考和解决问题时,不受已知的或现成的方式、规则和范畴的约束,从一个问题的中心点向外辐射发散,进行多方向、多角度、多层次的思维活动。根据上述定义,下列情形体现了裂变思维的是:
下面有关处方的说法中正确的是
下列何种纤维面层的地毯阻燃性最好?[2012—043,2009—048,2007—046]
(2003)在处理公共建筑室外空间与周围环境的关系时.常常会引用“巧千因借,精在体宜”及“俗则摒之,嘉则收之”.这些话出自于:
X股份有限公司(以下简称X公司)系公开发行A股的上市实体,北京ABC会计师事务所注册会计师A担任X公司2014年度财务报表审计的项目经理,注册会计师B为主任会计师。资料一:A注册会计师在审计工作底稿中记录了所了解的X公司情况及其环境,部分内容摘录
案例一:以下是《十几减九》的教学片段:教师先让学生独立思考例题“12—9”的计算方法,然后展开师生对话,交流算法。师:谁来介绍自己的方法,告诉大家你是怎么想的?生1:我是数出来的。师:你是怎么数出来的呢?
行政行为合法要件包括()。
2016年可以被称为“共享年”,截至2016年11月,已经诞生了摩拜、优拜、OFO、小鸣、骑呗等多家共享单车品牌。针对上述5种单车品牌,武汉大学樱园宿舍的门前,特意设立了共享单车小车位。车位1至5从左到右停着5辆不同品牌不同颜色的单车,其中一辆为红色,并已
已知fˊ(lnx)=1+x,则f(x)=_________.
Thegrandmotherdidn’twanttogotoFlorida.ShewantedtovisitsomeofherconnectionsineastTennesseeandshewasseizing
最新回复
(
0
)