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
2014-12-18
72
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 B)emergency C)aware D)detecting
E)permanently F)limited G)sure H)inefficient
I)dedicated J)exposed K)impulses L)messages
M)distinguishing N)particular O)extremely
【C7】
选项
答案
H
解析
这里是“主语+find+it+a.+不定式”的句式,故空格应填人形容词。that从句解释了“对气味不敏感”的原因。词库中只有inefficient符合句意,表明“对气味不敏感的原因是:大脑发现让所有的气味感受器一直处于运转状态效率太低”。
转载请注明原文地址:https://kaotiyun.com/show/Dvm7777K
0
大学英语六级
相关试题推荐
A、Herprofessor.B、Aclassmate.C、Herformerboss.D、Aforeigndiplomat.C男士问女士要先采访谁,女士回答说是她之前为其工作过的公司的经理,即女士的前任上司,故答案为C)。
A、Sponsorshipform,applicationfeeandhighschooltranscripts.B、Applicationfee,highschooltranscriptsandlanguagecertifi
A、Hercompanycloseddown.B、Shewasdissatisfiedwithhercompany.C、Hercompanywasinpoormanagement.D、Shewaslaidoffby
A、Shehastoattendclassesonweekdays.B、Shewantstoearnmoremoney.C、TherearemorecallsonSaturdays.D、Shehastoomuch
A、Shedoesn’texpecttofinishallherworkinthirtyminutes.B、Shehastodoalotofthingswithinashorttime.C、Shehasbe
A、Toteachinanelementaryschoolforafewyears.B、Todevotehislifetoresearchinscience.C、Tomakeupafamilywithhis
A、He’supsetbecausehecuthimself.B、Hecan’tfacethePhysicsinstructoranylonger.C、Hewantsthewomantocutoutscience
A、Artist.B、Photographer.C、Journalist.D、Editor.B女士问男士做什么工作,男士回答说他在一家报社做摄影工作(shootpicturesforanewspaper),由此可知男士是一名摄影师,故答案为
HereareSofiaFranco,thefoodwriterandstylist’stop11tipsforahealthydiet:1.Drinklotsofwater.Takea1.5literbo
A、HispoemsareheavilyinfluencedbyFrenchwriters.B、HisstoriesaremainlysetintheStateofVirginia.C、Hisworkisdiffi
随机试题
D公司是一家汽车销售企业,现对公司财务状况和经营成果进行分析,以发现与主要竞争对手E公司的差异。相关资料如下:资料一:D公司2018年的主要财务报表数据如下表所示:假设资产负债表项目年末余额可以代表全年平均水平。资料二:E公司相关财务比
下列不构成非法经营罪的是()。
_________命令可以组合两条曲线线串成为空间三维曲线。
Thesuggestionthatthemajor______theprizeswasacceptedbyeveryone.
血管外伤:高血压病:
体内的铁主要分布在下列哪一项中
李先生,24岁,3h前活动时突然剧烈头痛和喷射呕吐,查体:神清,四肢肌力正常,膜刺激征(+)。最可能的诊断是
下穿铁路桥梁、涵洞的道路应当按照国家标准设置车辆通过()标志。
为了培养公正廉明、英勇善战、无私无畏、雷厉风行的优良警风,需要强化公安机关内务建设。公安机关内务建设应贯彻的方针是()。
某次知识竞赛的决赛有3人参加.规则为12道题每题由1人以抢答方式答题,正确得10分。错误扣8分。如果最后所有人得分都是正分,且回答问题最多的人是得分最少的人,那么前两名之间的分差最多为多少分?()
最新回复
(
0
)