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
2019-09-18
49
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
【C10】
选项
答案
B
解析
这里填入的词与unfamiliar共同修饰signals,可以是名词,也可以是形容词或分词。从such as后面的例子来看,smell of smoke是火险的信号,可判断这是紧急情况,故选emergency。
转载请注明原文地址:https://kaotiyun.com/show/pVW7777K
0
大学英语六级
相关试题推荐
FeedingtheMassesaLoadofManureTheGreenRevolutionMyth,NormanBorlaug,andWorldHunger[A]Mostpeopledo
PeoplewhospendalotoftimesurfingtheInternetaremorelikelytoshowsignsofdepressionBritishscientistssaidonWedne
PeoplewhospendalotoftimesurfingtheInternetaremorelikelytoshowsignsofdepressionBritishscientistssaidonWedne
A、Hersupporterspaidthefamilyofthemanshekilled.B、ShegothelpfromtheInternationalLaborOrganization.C、Shearguedt
Inlastyear’sSciencestudy,researchersatJohnsHopkinsUniversityexaminedtherelationshipbetweenstem-celldivisionsand
PeoplewhospendalotoftimesurfingtheInternetaremorelikelytoshowsignsofdepression,BritishscientistssaidonWedn
AmericansEugeneFama,LarsPeterHansenandRobertShillerwontheNobelPrizeforeconomicsonMondayfordevelopingmethodst
A、Physicalmessage.B、Visualmessage.C、Storymessage.D、Verbalmessage.A
A、Sheearnedalotofmoney.B、Shelearnedmanythings.C、Shewasacquaintedwithmanypeople.D、Shebecameanartmajor.B①选项都是
A、ArealbookB、Acomputerfile.C、Ahandhelddevice.D、Apieceofpaper.B短文开头即对电子书下定义,指出它是以电脑文档的形式出现的,故B为答案。
随机试题
【背景资料】某宿舍楼为砖混结构,横墙承重,开间尺寸为3.6m,楼板采用非预应力钢筋混凝土空心楼板。施工中发生如下事件:事件一:为加快施工进度,项目经理要求吊装时板间不留置接缝,擅自减少灌浆工序。事件二:为抢工期,项目经理要求楼板混凝土强度达到设计强度
简述乡、民族乡、镇的人民代表大会行使的职权。
男,10岁,双上肢及右下肢Ⅲ度烧伤30%,伤后7天体温不升,呼吸40次/分,淡漠不语,创面颜色转暗,创缘下陷,痂下少许积液。首选创面处理方法是
A.- B.1+ C.2+ D.3+ E.4+厚涂片抗酸杆菌检查全视野发现10~9条抗酸杆菌可报告为
导致幼儿缺铁性贫血最主要的原因是()。
公安机关办理行政案件中,对于被侵害人或者善意第三人合法占有的财产,不得扣押,应当予以:
Sowhatisdepression?Depressionisoftenmoreaboutangerturned【C1】______thanitisaboutsadness.Butit’susually【C2】______
SQL的查询结果可以存放到多种类型的文件中,下列哪项的文件类型都可以用来存放查询结果()。
软件设计中划分模块的一个准则是( )。
ThebiggestproblemfacingChileasitpromotesitselfasatouristdestinationtobereckonedwith,isthatitisattheendof
最新回复
(
0
)