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
考研
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, 【B1】______this
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, 【B1】______this
admin
2019-05-25
36
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, 【B1】______this is largely because, 【B2】______animals, we stand upright. This means that our noses are【B3】______to perceiving those smells which float through the air,【B4】______the majority of smells which stick to surfaces. In fact,【B5】______, we are extremely sensitive to smells, 【B6】______we do not generally realize it. Our noses are capable of 【B7】______human smells even when these are【B8】______to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, 【B9】______others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【B10】______smell receptors in the nose. These receptors are the cells which sense smells and send【B11】______to the brain. However, it has been found that even people insensitive to a certain smell【B12】______can suddenly become sensitive to it when【B13】______to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it【B14】______to keep all smell receptors working all the time but can【B15】______new receptors if necessary. This may【B16】______explain why we are not usually sensitive to our own smells—we simply do not need to be. We are not【B17】______of the usual smell of our own house, but we【B18】______new smells when we visit someone else’ s. The brain finds it best to keep smell receptors【B19】______for unfamiliar and emergency signals【B20】______the smell of smoke, which might indicate the danger of fire.
【B18】
选项
A、tolerate
B、repel
C、neglect
D、notice
答案
D
解析
考查动词辨析。空格所在部分讲的是“我们察觉不到自己家里惯有的气味,但是当我们拜访其他人的家时,就会______到不熟悉的气味”。句中的“但是”告诉我们这是转折关系,因此,空格处应该填和“察觉不到”相反的词。D.notice“注意到”,符合文意。
转载请注明原文地址:https://kaotiyun.com/show/conZ777K
0
考研英语一
相关试题推荐
Youngpeoplealwayssufferinrecessions.Employersstop【C1】______thembecausetheyareeasiertosack.Butin【C2】______episodes
Youngpeoplealwayssufferinrecessions.Employersstop【C1】______thembecausetheyareeasiertosack.Butin【C2】______episodes
People’sfinancialhistoryhasastrongimpactontheirtasteforrisk.LookingatsurveysofAmericanhousehold【C1】______from1
People’sfinancialhistoryhasastrongimpactontheirtasteforrisk.LookingatsurveysofAmericanhousehold【C1】______from1
People’sfinancialhistoryhasastrongimpactontheirtasteforrisk.LookingatsurveysofAmericanhousehold【C1】______from1
People’sfinancialhistoryhasastrongimpactontheirtasteforrisk.LookingatsurveysofAmericanhousehold【C1】______from1
Telecommuting,Internetshoppingandonlinemeetingsmaysaveenergyascomparedwithin-personalternatives,butasthedigital
AlthoughConsumersUnionconcedesthat"noconfirmedcasesofharmtohumansfrommanufacturednanoparticleshavebeenreported"
随机试题
慢性阻塞性肺疾病失代偿期,Ⅱ型呼吸衰竭,给氧的原则是
必须应用对比剂进行的检查是
提高早期胃癌诊断率的三项关键性手段是
药品经营企业购进药品药品经营企业对首营企业应进行
根据《2000通则》,CIF与DES的区别是()。
公安机关必须接受党委领导的同时,还需要依照党政分开的原则,强调政府对公安机关的领导。()
领导职务按照国家规定实行()。
设计美术馆向来是建筑师莫大的机遇,他们会因此得到可以尽情施展最炫目华彩技法的舞台。而在梵.高美术馆,从最初设计草图的里特维尔德,到负责设计配楼的黑川纪章,再加上为他们拾遗补缺的凡.古尔,都不约而同地采取了非常低调内敛的姿态,绝无半分喧宾夺主的企图。是不是该
Chemistryplaysanimportantpartinourlife.The【1】______ofaclock,【1】______theclotheswewear,andourleathershoe
Adegreefromacollegeoruniversityisoftenakeythatopensdoorsof【B1】______—doorstoabetterjobandabetterlife.With
最新回复
(
0
)