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
83
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]
【C3】
选项
A、grounds
B、terms
C、point
D、account
答案
A
解析
本题考查旬内语义+介词短语。
转载请注明原文地址:https://kaotiyun.com/show/Avp4777K
0
考研英语一
相关试题推荐
Thesecondparagraphismainlyabout______.WhichofthefollowingisTRUE.accordingtothepassage?
Whichconditiondoestheauthorfeelhasnearlydestroyedourcities?Accordingtotheauthor,whatisoneexampleofour.loss
TheprofessortalkedtoAmericanandBrazilianstudentsaboutlatenessinbothaninformalandaformalsituation:lunchwitha
Thesimpleperceptionofnaturalformsisadelight.(46)Theinfluenceoftheformsandactionsinnatureissoneedfultoman,
Whatisthetextmainlyabout?Thegrowthofcell-phoneusersdeclinesbecause
TheauthorthinkscurrententertainmentisrelativelypoorbecauseItcanbelearnedthatthetypesofentertainmentofmid-nin
Youaregoingtoreadatextaboutthetipsonpreparinganewgarden,followedbyalistofexamples.Choosethebestexamplef
WhyistheinterdependenceoftheUKeconomymentionedinparagraph1?Thetitlewhichbestexpressestheideaofthetextwoul
Earthquakebeltsare______.WhatcanbesaidabouttheexperimentsatRockyMountainArsenal?
Expressionismisa(n)TheVanGogh’sletter(Para.2)wasmentionedto
随机试题
银行及其从业人员在接受非现场监督的时候,提供的数据一定要真实、准确,但不必很完整。()
王奶奶无儿无女,老伴去世后独自生活。最近王奶奶突然中风,因治疗不及时,行走困难。社会工作者小桂协助王奶奶练习走路,并为她申请了临时医疗补助。小桂的工作属于()。
WhydoweneedtheEnglishmajor?The【C1】________isineverymouth—or,atleast,isdiscussedextensivelyincolumnsand【C2】____
Thereisapopularbeliefamongparentsthatschoolsarenolongerinterestedinspelling.NoschoolIhavetaughtinhaseverig
对某校六年级12岁年龄组300名学生进行口腔健康检查,发现学生中患龋150人。未治龋齿数为120颗、龋面180个,因龋充填牙数为60颗、龋面60个,无因龋失牙。这些学生的龋面充填构成比是
A.上消化道钡餐造影B.小肠导管造影C.钡剂灌肠D.腹部透视E.断层摄影
根据《工程建设项目施工招标投标办法》(国家八部委局第30号令),投标人串通投标报价的行为包括()等。
制作感觉顺序量表除了使用感等级排列法之外,还有一种方法是
Theideathatpeoplemightbechosenorrejectedforjobsonthebasisoftheirgenesdisturbsmany.Such【B1】______mayhowever,
软件需求分析阶段的工作,可以分为四个方面:需求获取、需求分析、编写需求规格说明书以及______。
最新回复
(
0
)