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
When children hit puberty(青春期), their ability to learn a second language drops. They find it harder to learn their way around a
When children hit puberty(青春期), their ability to learn a second language drops. They find it harder to learn their way around a
admin
2015-07-31
73
问题
When children hit puberty(青春期), their ability to learn a second language drops. They find it harder to learn their way around a new location. Why is this? Sheryl Smith and her【C1】______at the State University of New York now【C2】______that all of these behavioural changes could be due to a temporary increase in a chemical receptor that inhibits brain activity in an area responsible for learning.
In 2007, Smith’s team discovered that the number of these receptors【C3】______in mice when they hit puberty, before falling back in adulthood. In their latest study, Smith’s team set about finding out if these receptor change in mice might lead to impaired learning abilities,【C4】______like those seen in pubescent humans.
The group【C5】______the hippocampus(海马体)in mouse brains. Sure enough, pubertal mice had seven times as many of the receptors as infant mice. In adulthood, the number of these receptors fell back to an intermediate level.
Smith reckons that the same mechanism might underlie the learning deficits teenagers experience. Cheryl Sisk at Michigan State University at East Lansing agrees that "mouse puberty is【C6】______to human puberty, although the timescale is different".
In a further experiment, Smith found that she could remove the learning deficit by【C7】______pubertal mice with THP.
Smith suggests that in her most recent experiment, giving extra THP to pubertal mice increased their brain activity and that this activity may have【C8】______for their learning deficits.
Smith suggests that a【C9】______form of THP could be developed for teenagers with learning difficulties, although she acknowledges that【C10】______would need to be taken not to create any new problems.
A)activity F)even K)reckon
B)adopt G)examined L)research
C)care H)familiar M)similar
D)colleagues I)injecting N)soared
E)compensated J)rather O)synthetic
【C3】
选项
答案
N
解析
动词辨析题。由句子结构可知,空格处应填动词作谓语,再根据空格所在句的时态可知,空格处应填动词过去式。由句意可知,本句是把老鼠青春期和成年的受体数量作比较。根据首段中的a temporary increase和空格后面的falling back in adulthood以及备选项可知,soared“猛增,骤升”符合句意。
转载请注明原文地址:https://kaotiyun.com/show/LMl7777K
0
大学英语四级
相关试题推荐
Marriageemergedasthemostpopularinstitutionthroughouthistoryprimarilybecauseitwasaneffectivearrangementtoimprove
HaitiDreamsofTourismRevivalA)LikemanyofitsCaribbeanneighbors,Haitioncedrewmanytourists.Butdecadesofpolitical
Wefindthatbrightchildrenarerarelyheldbackbymixed-abilityteaching.Onthecontrary,boththeirknowledgeandexperienc
A、Sometimesitisinteresting,butsometimesitisboring.B、Itishardwork,andshewantstochangeherjob.C、Itisaneasyj
WaystoLiveLongerA)WehavetheNHS(theNationalHealthService)andmuchoftherestoftheworldenviesusforit,buthowlo
WaystoLiveLongerA)WehavetheNHS(theNationalHealthService)andmuchoftherestoftheworldenviesusforit,buthowlo
Unlikeothercountrieswhereitiscommontoseetwowomenortwomenholdinghands,suchbehavioris【B1】______inWesterncountr
Foryears,highschoolstudentshavereceivedidenticaltextbooksastheirclassmates.Evenasstudentshavedifferentlearning
Millionsofteenagersareindangerofputtingtheirhealthatriskbygettinghookedone-cigarettes,expertswarn.Leadinghea
随机试题
顾客让渡价值中的顾客总成本是()。
患者女,45岁。患肝硬化6年,移动性浊音阳性。近两天突然呕血约1000ml,现出现烦躁不安,扑翼样震颤,脑电图异常。对该患者的治疗正确的是()。
焊机二次侧电源线长度最大不得超过()m。
已知质点沿半径为40cm的圆周运动,其运动规律为s=20t(s以cm计,t以s计)。若t=1s,则点的速度与加速度的大小为:
(2010年)2004年2月,A公司和B公司共同投资设立西电有限责任公司(以下简称“西电公司”),注册资本1000万元。其中:A公司持有30%的股权,B公司持有70%的股权。2005年3月,A公司分别向C公司和D公司转让了其持有的西电公司10%的股权。
请认真阅读下列材料,并按要求作答。若指导中年段小学生学习,试拟定教学目标。
在我国教育史上,最早把小学教育规定为义务教育是在()
市场中的信息不对称是指每个参与者拥有的信息不相同。例如,在二手车市场有关旧车质量的信息,卖者通常要比买者知道得多。但______现象不属于信息不对称。()
SNMP协议实体发送请求和应答报文的默认端口号是(47),SNMP代理发送陷入报文(trap)的默认端口号是(48)。
What’sthemainreasonforAmericanstogotothemovies?
最新回复
(
0
)