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 study of genetics has given rise to a profitable new industry called biotechnology. As the name【C1】______, it combines biolo
The study of genetics has given rise to a profitable new industry called biotechnology. As the name【C1】______, it combines biolo
admin
2014-02-22
34
问题
The study of genetics has given rise to a profitable new industry called biotechnology. As the name【C1】______, it combines biology and modern technology through such【C2】______as genetic engineering. Some of the new biotech companies, as they are called, 【C3】______in agriculture and are working enthusiastically to patent(取得专利)seeds that give a high yield(产量), that【C4】______disease, drought and frost, and that reduce the need for dangerous chemicals. 【C5】______such goals could be achieved, it would be most beneficial. But some have raised【C6】______about genetically engineered crops.
"In nature, genetic diversity(多样性)is created within certain limits," says the book Genetic Engineering, Food and Our Environment. " A rose can be crossed(杂交)with a different kind of rose, but a rose will【C7】______cross with a potato... " Genetic engineering, on the other hand, usually involves taking genes from one species and inserting them into another in an attempt to【C8】______a desired property or character. This could mean, 【C9】______, selecting a gene which leads to the production of a chemical with antifreeze properties from an arctic fish, and joining it into a potato or strawberry to make it frost-resistant. It is now possible for plants to be engineered with genes【C10】______from bacteria, viruses, insects, animals or even humans. 【C11】______, then, biotechnology allows humans to break the genetic walls that【C12】______species.
Like the green revolution, 【C13】______some call the gene revolution【C14】______to the problem of genetic uniformity(千篇一律)— some say even more so【C15】______geneticists can employ techniques such【C16】______cloning and organ culture, processes that produce perfectly 【C17】______copies, or clones. Concerns about the biodiversity, therefore, remain. Genetically altered plants, however, raise new【C18】______, such as the effects that they may have on us and the environment. "We are flying blindly into a new【C19】______of agricultural biotechnology with high hopes, few constraints, and little idea of the potential【C20】______," said science writer Jeremy Rifkin.
【C11】
选项
A、In contrast
B、In that
C、In case
D、In essence
答案
C
解析
词组辨析。In contrast“与此相反;比较起来”;In that“因为;由于;既然”;In case“万一;假使”;In essence“本质上;其实;大体上”。根据前后文的句意和逻辑关系判定,不是比较关系和因果关系,排除A项和B项,空格所在句子说明的也不是基因重组的本质,故答案为C。
转载请注明原文地址:https://www.kaotiyun.com/show/iFQO777K
0
考博英语
相关试题推荐
IntheUnitedStatesandinmany【51】countriesaroundtheworld,therearefourmainwaysforpeopletobeinformed【52】developmen
IntheUnitedStatesandinmany【51】countriesaroundtheworld,therearefourmainwaysforpeopletobeinformed【52】developmen
Thebusinessofadvertisingistoinventmethodsofaddressingmassiveaudiencesinalanguagedesignedtobeeasilyaccessible
Fearanditscompanionpainaretwoofthemostusefulthingsthatmenandanimalspossess,iftheyareproperlyused.Iffired
ScienceFictioncanprovidestudentsinterestedinthefuturewithabasicintroductiontotheconceptofthinkingaboutpossibl
Thelastdecadehasseenatremendousexpansionofscientificknowledgeinhumangenetics.Ourunderstandingofhumangenesand
It’sallannualback-to-schoolroutine.Onemorningyouwavegoodbye,andthat【56】eveningyou’reburningthelate-nightoilins
Sociologistsusethetermpowertorefertothecapacityofpeopleorgroupstocontrolorinfluencetheactionsofothers,whet
StandardEnglishisthevarietyofEnglishwhichisusuallyusedinprintandwhichisnormallytaughtinschoolsandtonon-nat
ThedestructionoftheTwinTowersinNewYorkCity______shockandangerthroughouttheworld.
随机试题
电焊工作时需要用到哪些工具?
全科医学是
引起吞咽困难的病因不包括
巴豆制成巴豆霜之日的是
在DOS系统下可以将屏幕上的内容打印输出的按键是()。
财务报告使用者主要包括()。
A:OK.HereyouareB.WeatherC.Don’tworryD.what’stheproblemE.Itdoesn’tmatterthistimeA:WhatdoEnglishpeoplelike
“第一流人才内阁”的总理熊希龄是()党员。
内存按字节编址,地址从0A4000H到0CBFFFH。若用存储容量为32K×8bit的存储器芯片构成该内存,至少需要(3)。
在窗体上有一个名称为Drivel的驱动器列表框,一个名称为Dirl的目录列表框,一个名称为File1的文件列表框,两个名称分别为Labe11、Labe12的标签(标题分别为空白和“共有文件”)。要使得驱动器列表框与目录列表框、目录列表框与文件列表框同步变化
最新回复
(
0
)