首页
登录
职称英语
The human nose is an underrated tool. Humans are often thought to be insensi
The human nose is an underrated tool. Humans are often thought to be insensi
游客
2023-11-16
42
管理
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【31】this is largely because,【32】animals, we stand upright. This means that our noses are【33】to perceiving those smells which float through the air,【34】the majority of smells which stick to surfaces. In fact,【35】, we are extremely sensitive to smells,【36】we do not generally realize it. Our noses are capable of【37】human smells even when these are【38】to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another,【39】others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【40】smell receptors in the nose. These receptors are the cells which sense smells and send【41】to the brain. However, it has been found that even people insensitive to a certain smell【42】can suddenly become sensitive to it when【43】to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it【44】to keep all smell receptors working all the time but can【45】new receptors if necessary. This may【46】explain why we are not usually sensitive to our own smells—we simply do not need to be. We are not【47】of the usual smell of our own house, but we【48】new smells when we visit someone else’s. The brain finds it best to keep smell receptors【49】for unfamiliar and emergency signals【50】the smell of smoke, which might indicate the danger of fire. [br]
选项
A、catching
B、ignoring
C、missing
D、tracking
答案
C
解析
此处空格与上文中的perceiving构成对应关系,空格的意思应为“没有感觉到”。A、D项不合题意。B项意为“忽略,忽视”,含一种主观上的因素。故选择C项missing,表达failing to detect(未察觉)的含义。
转载请注明原文地址:https://tihaiku.com/zcyy/3192959.html
相关试题推荐
Accordingtothenarrator,whichkindofdogsisthoughttohaveasenseofhumo
Accordingtothenarrator,whichkindofdogsisthoughttohaveasenseofhumo
Accordingtothenarrator,whichkindofdogsisthoughttohaveasenseofhumo
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
Humansareuniqueintheextenttowhichtheycanreflectonthemselvesand
随机试题
CourageSomeoftheworld’soldestandbeststoriesareaboutcourage.Theya
[originaltext][5]ThreeItalianconsumergroupshaveaccusedMcDonald’sofb
FlowchartcompletionCompletetheflowchartbelow.WriteNOMORETHANTWOWORD
任何人,不管是二十岁还是八十岁,停止学习就会衰老。(whether...or…)Anyonewhostopslearningisold,whether
ProtectYourPrivacyWhenJob-huntingOnlineA)Identitytheft
载体对固体分散体中药物溶出的促进作用不正确的是A.载体使药物提高可润湿性 B.
Thechangeinthatvillagewasmiraculou
保险公司依法破产的,破产财产优先支付其破产费用后,优先清偿()。 A.所欠税
路基石方爆破开挖时,选择清方机械主要考虑的因素有()。A.场内道路条件
IFN-γA.不是由T细胞产生的 B.有免疫调节作用 C.与IFN-α一样作
最新回复
(
0
)