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 human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is lar
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is lar
admin
2016-12-18
41
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is largely because, unlike animals, we stand upright This means that our noses are【C1】______to perceiving those smells which float through the air, missing the majority of smells which stick to surfaces. In fact, though, we are【C2】______sensitive to smells, even if we do not generally realize it Our noses are capable of【C3】______human smells even when these are diluted to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, whereas others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【C4】______smell receptors in the nose. These receptors are the cells which sense smells and send【C5】______to the brain. However, it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when【C6】______to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it【C7】______to keep all smell receptors working all the time but can create new receptors if necessary. This may also explain why we are not usually sensitive to our own smells—we【C8】______do not need to be. We are not【C9】______of the usual smell of our own house, but we notice new smells when we visit someone else’s. The brain finds it best to keep smell receptors available for unfamiliar and【C10】______signals such as the smell of smoke, which might indicate the danger of fire.
A)simply E)permanently I)dedicated M)distinguishing
B)emergency F)limited J)exposed N)particular
C)aware G)sure K)impulses O)extremely
D)detecting H)inefficient L)messages
【C8】
选项
答案
A
解析
空格所在句主谓宾成分齐全,由此判断空格处应填入副词。simply“只不过”放入句中合适,表示“这只是因为我们不需要”。permanently和extremely在语义上说不通。
转载请注明原文地址:https://kaotiyun.com/show/jJF7777K
0
大学英语六级
相关试题推荐
I’vetwicebeentocollege-admissionswars,andasIsurveythebattlefield,somethingdifferentishappening.It’sone-upmanshi
I’vetwicebeentocollege-admissionswars,andasIsurveythebattlefield,somethingdifferentishappening.It’sone-upmanshi
中华民族的传统文化博大精深、源远流长。文化交流绝不是让外国文化吞并本国文化,而是为了丰富和充实本民族的文化。文化来自民间,文化属于大众,保护文化遗产、繁荣民族文化,关系到每个公民。早在2000多年前,中国就产生了以孔、孟(ConfuciusandMen
BusinessIdeas[A]Whatmakesabusinessideagood?Haveyoueverthoughtyouhadagreatideaforabusinessbutdidn’tdoanyth
Inameretwoyears,theproportionofteenagerswhoexpecttobefinanciallydependentontheirparentsuntiltheirmid-20shas
A、Howhebecameanannouncer.B、Howhewritesnewsstories.C、Howhemakeshisliving.D、Howhedoeshisjob.D四个选项均是以“Howhe+动词
Extinctionisdifficultconcepttograsp.Itisan【B1】______concept.It’snotatalllikethekillingofindividuallifeformsth
Moreandmore,theoperationsofourbusiness,governments,andfinancialinstitutionsarecontrolledbyinformationthatexists
A、Hetookadvantageofhislargecircleoffriends.B、Heattemptedallsortsofadventuresworldwide.C、Hecombinedfantasticma
A、Shewantstobooksomeplanetickets.B、Herassistantneedstobuysomebooksforthem.C、Sheneedstofindagoodhotelfort
随机试题
甲、乙共同犯罪案件,一审人民法院宣判后,人民检察院认为对乙量刑过轻,遂提起抗诉。在第二审程序中,甲有哪些权利或义务?()
患者,男,52岁,3个月来乏力,面色苍白。化验血Hb62g/L,WBC3.2×104/L,分类N66%,L30%,M4%,Plt68×104/L,骨髓增生明显活跃,原始粒细胞4%,成熟粒细胞分叶过多,胞浆内颗粒少,红系增生活跃,有巨核细胞,全片见巨核细胞5
初产妇重症胎盘早剥,宫口开大4cm,最佳的处理方法是
有机磷中毒出现毒蕈碱样症状的主要机制是
属于糖皮质激素的平喘药的是()。
本破产案件的诉讼程序()。人民法院受理本破产案件后,应当自裁定作出之日起()内送达申请人丙厂。
某工业企业出售一项专利权,款已收到,出售收入扣除专利权账面成本和应交税金后为净盈利,处理此项业务时,净盈利应贷记的账户是()。
当北印度洋海区洋流呈逆时针方向流动时,下列说法正确的是:
showofself-confidence
Theselfishnessofhumansisacentralassumptionoforthodox(传统的)economics,whereitisthoughttoleadtobenefitsfortheeco
最新回复
(
0
)