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
75
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://kaotiyun.com/show/1ZZ4777K
0
考研英语一
相关试题推荐
Maintainingclassroomdisciplineisagrowingproblemformanyschools.(46)Somechildrenseemincapableoffollowingtherules,
Maintainingclassroomdisciplineisagrowingproblemformanyschools.(46)Somechildrenseemincapableoffollowingtherules,
Fromthetext,weknowthattheGreatLakesWhichofthefollowingcausesconcernsofthepublicandthescientists?
Accordingtothetext,scholarsandstudentsaregreattravelersbecauseDevelopmentsininternationalcooperationareoften,i
Accordingtothetext,scholarsandstudentsaregreattravelersbecauseThewriterthinksthatthegrowthofspecialistsociet
ArecenthistoryoftheChicagomeat-packingindustryanditsworkersexamineshowtheindustrygrewfromitsappearanceinthe
Recentlegalresearchindicatedthatincorrectidentificationisamajorfactorinmanymiscarriagesofjustice.Italsosuggest
Thediscoveryoftheshipisimportanttostudentsofearlyshipsandtheirroutesbecause______.Whichofthefollowingtasks
Sheteachesherstudentstohaverespect______differentraces.
随机试题
下列作品中属纪传体通史的是()
导致泄泻的根本病理在于()
下列哪些选项不属于行为人的法律认识错误?
甲公司可委托()工程建设招标代理机构。
企业会计报表附注应包括()。
下列关于注册会计师保持职业怀疑的表述中正确的有()。
A、 B、 C、 D、 A
Cananovelistremain______totheproblemsoftheworldinwhichhelives?
Itisclearthatwearerapidlybecomingaglobalculture.Newformsofinformationtechnology,intercontinentaltravel,andthe
A、Shewillexplorealonelyisland.B、Shewillwriteherownguidebook.C、Shehasplannedhertripbyherself.D、Shehassaved
最新回复
(
0
)