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
Antibiotics, before they became used as drugs, were natural products. A new finding provides the first direct【C1】______that anti
Antibiotics, before they became used as drugs, were natural products. A new finding provides the first direct【C1】______that anti
admin
2012-07-06
63
问题
Antibiotics, before they became used as drugs, were natural products. A new finding provides the first direct【C1】______that antibiotic resistance is a widespread natural phenomenon that【C2】______the modern medical use of antibiotics. Experts had long predicted this on theoretical【C3】______, but they say the new finding【C4】______the need to use antibiotics sparingly, 【C5】______that the genes for antibiotic resistance are very common and can easily be【C6】______by antibiotics. "The fact that the genes for resistance are so ancient and widespread means there is no easy【C7】______to the problem of resistance — we will never invent a super-antibiotic that【C8】______everything up," said Martin J. Blaser, a microbiologist at New York University.
Antibiotics are substances【C9】______by fungi, algae and bacteria for signaling and for defense. The inhabitants of this microbial world have also evolved genes that【C10】______antibiotics. After millions of years of chemical【C11】______, two classes of sophisticated genes have【C12】______, those that make antibiotics and those that provide resistance to antibiotics. "Antibiotic resistance is part of the natural ecology of the planet, and this finding is a【C13】______note about how we use these things," Dr. Wright said. "Antibiotics are remarkable resources that need to be carefully【C14】______. "
Widespread use of the drugs has stimulated the【C15】______of bacteria that have become the 【C16】______of hospitals because they can resist many different kinds of antibiotic. "What this finding says to me is that we have to use the antibiotics we have【C17】______, because we’re not going to【C18】______misuse," said Stuart Levy, a microbiologist at Tufts University who has【C19】______of wasteful use of antibiotics for 30 years. "What had been missed in the 1960s and 1970s was the【C20】______with which resistance could appear," he said. "Bacteria share these genes like baseball cards with each other. "[308 words]
【C19】
选项
A、approved
B、learned
C、warned
D、conceived
答案
C
解析
本题考查上下文语义+动词短语。
转载请注明原文地址:https://kaotiyun.com/show/Tvp4777K
0
考研英语一
相关试题推荐
Youaregoingtoreadatextaboutdifferenttypesoffriendship,followedbyalistofexamples.Choosethebestexamplefromt
Youaregoingtoreadatextaboutdifferenttypesoffriendship,followedbyalistofexamples.Choosethebestexamplefromt
Theauthor’sprimarypurposeindefiningpoweristo______.Theauthorwouldbemostlikelytoagreewithstatementsthat____
HowmanyAmerica’scelebritybossesarementionedinthefirstparagraph?Whatisthemainideaofthepassage?
Studythefollowingdrawingcarefullyandwriteanessayinwhichyoushould1)describethedrawing,2)interpretitsm
Youaregoingtoreadatextaboutlanguage,followedbyalistofexamples,Choosethebestexamplefromthelistforeachnumb
Thetelecityisacitywhoselife,direction,andfunctioningarelargelyshapedbytelecommunications.Inthetwentyfirstcent
Youaregoingtoreadatextaboutthetipsonpreparinganewgarden,followedbyalistofexamples.Choosethebestexamplef
Electronicor"cyber"warfareholdsthepromiseofdestroyinganarmy’s-orevenawholenation’sabilitytofunctionwithouthur
TheStudents’UnionofyouruniversityisplanninganEnglishSpeakingContest.Writeanannouncementwhichcoversthefollowing
随机试题
下面的ASP.NET页面代码:HyperLinkSampleClickontheHyperLink:正确代码应该是:无标题页HyperLinkSample该代码在执行时,将()。
患者朱某因颈椎骨折入院,在对其进行搬运的过程中,应注意
下列关于食管癌的X线表现,正确的是
患者男,37岁,诊断为扩张型心肌病,心功能Ⅳ级。心电图示心率96次/分,心房颤动。血清钾6.5mmol/L,血清钠130mmol/L。该患者不宜应用()
成就动机是指一个人所具有的试图追求和达到目标的驱力。关于成就动机的研究表明.与害怕失败者相比,追求成功者倾向于选择()。
A.酒窝征B.橘皮征C.卫星结节D.乳头凹陷乳腺癌癌细胞侵犯皮下淋巴管产生
进度控制是避免工期拖延的一种方法。进度控制中的纠正行为通常加速某些活动以确保这些活动能够及时完成。为了重新编制和执行进度表,纠正行为通常要求______。A.做大家都不喜欢的决策B.及时调整基线C.进行原因分析D.资源平衡
TheBritishCourtofAppealhascutlibeldamagesawardedtoMcDonald’s,theworld’slargestfast-foodchain,againsttwopennil
FiveCommonMistakesinConversationsandTheirSolutionsⅠ.NotlisteningA.Problem:mostpeopledon’tlisten—waitea
Whatisthisnewsabout?
最新回复
(
0
)