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
Researchers led by New York University neuroscientist Joseph LeDoux recently claimed to be the first scientists to erase a singl
Researchers led by New York University neuroscientist Joseph LeDoux recently claimed to be the first scientists to erase a singl
admin
2014-04-20
71
问题
Researchers led by New York University neuroscientist Joseph LeDoux recently claimed to be the first scientists to erase a single memory. Working with rats, LeDoux’s team first【B1】______the animals to fear both a beep and a siren【B2】______giving them an electric shock every time either of the tones sounded. Then LeDoux gave half the rats the drug U0126, which is known to【B3】______with memory storage, and replayed the beep【B4】______electric shocks.
A day later, when LeDoux【B5】______back both tones to the rats, the animals that hadn’t been given the drug were still fearful of both sounds.【B6】______the rats that had been given the memory-blocking drug weren’t【B7】______of the beep, which they had last heard while【B8】______the influence of U0126.
【B9】______how U0126 exerts its amnesiac effect is【B10】______, but it may block the synthesis of proteins that help strengthen【B11】______between neurons and establish memories. The opportunity for erasure【B12】______during the act of retrieving a memory, because that’s【B13】______the memory is being updated and【B14】______again for long-term storage. " Only those memories that are activated are【B15】______," LeDoux says.
Drugs like U0126 may someday【B16】______sufferers of traumatic memories. A small group of human studies have been done on a drug called propranolol, which blocks the action of stress neurotransmitters that help【B17】______memories in the brain, but LeDoux’s work shows the【B18】______for greater precision. " You might be able to【B19】______the traumatic impact of memories in people," says LeDoux. " The good news is you wouldn’t be【B20】______off their memory bank. "
【B19】
选项
A、suspend
B、explore
C、maintain
D、reduce
答案
D
解析
动词辨析题。文章通篇在讨论新型的记忆阻隔药物,本段也指出其目的在于帮助受创伤性记忆困扰的人,对于这种记忆必然是希望它的影响减少到最低,故本句的意义应是“你可以减少人们头脑中创伤性记忆的影响”,故[D]reduce“减少”为正确答案。首先排除[C]maintain“保持”,因为这与研究记忆阻隔药物的初衷恰恰相反。[B]explore“探究”,本文的主题是阻隔创伤性记忆,故“探究记忆的影响”显然偏离主题。而[A]suspend表示“暂停”,本文提及的药物是要消除或减轻创伤记忆的影响,而不是仅仅暂时停止,故[A]也应排除。
转载请注明原文地址:https://kaotiyun.com/show/YPO4777K
0
考研英语一
相关试题推荐
Therehasbeenadiscussionrecentlyontheissueofcommunicationinanewspaper.Writeanessayofabout200wordstothenewsp
Theenergycontainedinrockwithintheearth’scrustrepresentsanearlyunlimitedenergysource,butuntilrecentlycommercial
Theenergycontainedinrockwithintheearth’scrustrepresentsanearlyunlimitedenergysource,butuntilrecentlycommercial
Guthrie’scontiguityprincipleofferspracticalsuggestionsforhowtobreakhabits.Oneapplicationofthethresholdmethod
Guthrie’scontiguityprincipleofferspracticalsuggestionsforhowtobreakhabits.Oneapplicationofthethresholdmethod
ThefirsttechnologicalrevolutioninmodernbiologystartedwhenJamesWatsonandFrancisCrickdescribedthestructureofDNA
ThefirsttechnologicalrevolutioninmodernbiologystartedwhenJamesWatsonandFrancisCrickdescribedthestructureofDNA
Whethertoteachyoungchildrenasecondlanguageisdisputedamongteachers,researchersandpushyparents.Ontheonehand,ac
AprovenmethodforeffectivetextbookreadingistheSQ3RmethoddevelopedbyFrancisRobinson.Thefirststepistosurvey(th
FlorenceNightingaleismostrememberedasapioneerofnursingandareformerofhospitalsanitationmethods.Formostofhern
随机试题
26岁,初孕妇,现妊娠40周,近半月头痛,眼花,今晨出现剧烈头痛,并呕吐2次,来院就诊。听胎心,发现胎心176/min,此时恰当的处置应该是
A.乙醇提取,正丁醇萃取法B.碱水提取法C.吉拉尔试剂法D.中性乙酸铅沉淀法E.碱性乙酸铅沉淀法甘草皂苷的提取制备多采用
账簿、收支凭证粘贴簿等资料,保管期满需要销毁时,应编造销毁清册,报()批准,然后在其监督下销毁。
甲公司向乙银行借款500万元,以其闲置的一处办公用房作担保。乙银行正好缺乏办公场所,于是与甲公司商定,由甲公司以此办公用房为乙银行设立担保物权。随后,甲公司向乙银行交付了办公用房,但未办理登记手续。借款到期后,甲公司未能偿还借款,乙银行主张对办公用房行使优
实施计算机信息安全保护措施包括安全法规、安全技术和()。
小张就职于某事业单位,由于工作期间无故旷工多次,被工作单位解除了聘用合同,那么小张可能是因为()。
某校电子院与计算机院学生总数可组成一个实心方阵,电子院与电信院学生总数也可组成一个实心方阵。已知计算机院有100人,电信院有168人,那么大方阵比小方阵每边人数多几人?
由于CPU内部的操作速度较快,而CPU访问一次主存所花的时间较长,因此机器周期通常用()来规定。
A、Mikewasn’tofferedthejobhehadmentioned.B、Mikedidn’treallywanttoworkinthebookstore.C、Mikewasn’tsurewherethe
HIVandItsTransmissionResearchhasrevealedagreatdealofvaluablemedical,scientific,andpublichealthinformationa
最新回复
(
0
)