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
65
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
【C6】
选项
答案
J
解析
本题所在句子是一个由when引导的条件句的省略形式(省略了they are),阐释了“使对某种气味不敏感的人突然变敏感”的条件,空格处应填入动词的分词形式,且能与to搭配。词库中符合语法的有limited和exposed。exposed放入句中指“当人们经常接触这种气味时,就会突然对它变得敏感”,符合逻辑。而limited带人后逻辑不对。
转载请注明原文地址:https://kaotiyun.com/show/xvm7777K
0
大学英语六级
相关试题推荐
Inrecentyears,researcheshavesuggestedmorehealthvaluefromvitaminDthanhadoncebeenthought.VitaminDis【C1】____
"Advertisinghasn’tchangedsincethe1960s,"saysRosenblum,thecofounderofa50-personagencycalledQuestusthatspecialize
A、Hewantedtomeetthewoman’sparents.B、HegoestoabeachhouseeachAugust.C、Hewon’tbeabletotakeavacation.D、Hedid
Ifyou’reoneofthosepeoplewhotendstoputonweightaroundyourmiddle,whatdoctorscallan"appleshape"—whattherestof
A、Hercompanycloseddown.B、Shewasdissatisfiedwithhercompany.C、Hercompanywasinpoormanagement.D、Shewaslaidoffby
A、Itwasbetterthanthepreviousone.B、Itdistortedthemayor’sspeech.C、Itexaggeratedthecity’seconomicproblems.D、Itre
A、Addpeachesandapplestoyourdiet.B、Cookwithonionsandgarlic.C、Reducetheamountofvinegar.D、Havemorefruitsenriche
A、Hethinksthewomanshouldn’tspeaksoopenly.B、Hetotallyagreeswiththewoman.C、Hewantstopersuadethewomannottothi
A、Learningstyles.B、Testing.C、Teachingmethod.D、Thecharacteristicsofthestudents.A对话中女士提到,工作的内容听起来很有趣,主要是帮助教授进行她有关学习风格的研究
Lowlevelsofliteracyandnumeracyhaveadamagingimpactonalmosteveryaspectofadultlife,accordingtoasurveypublished
随机试题
A.利水渗湿,健脾除痹,清热排脓B.利水渗湿,清肝明目,清肺化痰C.利水渗湿,健脾止泻,宁心安神D.利水渗湿,利胆退黄,解毒排脓茯苓的功效是
(2018年淄博)大学校园的清晨,经常看到有学生为了记住英语单词而大声、反复地朗读单词。这种识记方法属于()
诊断高血钠症的指标是血清钠至少高于()
能使血液不逸出于脉外是气的什么作用
三叉神经痛的主要病理表现是
国有建设用地有偿使用的最主要方式是()。
下列各项中,会导致企业实收资本增加的有()。
根据下面资料,回答以下问题:若按2011年进出口总额增长速度计算,则2012年进出口总额较2011年增长:
某外商计划在四个候选城市投资3个不同的项目,且在同一城市的投资项目不超过2个.则该外商有多少种备选的投资方案?
A、Thankyouverymuch.B、Youcandoitifyoulike.C、You’dbetternot.D、I’mlookingforagiftformyfather.D该题考查对营业员、服务员的主动
最新回复
(
0
)