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
A. limited B. distinguish C. unlike D. particular E. trigger F. inefficient G. create H. emergency I. incompetent J. detecting K
A. limited B. distinguish C. unlike D. particular E. trigger F. inefficient G. create H. emergency I. incompetent J. detecting K
admin
2017-02-18
21
问题
A. limited B. distinguish C. unlike D. particular E. trigger
F. inefficient G. create H. emergency I. incompetent J. detecting
K. aware L. messages M. unusual N. surfaces O. confined
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is largely because,【C1】______ animals, we stand upright. This means that our noses are【C2】______to perceiving those smells which float through the air, missing the majority of smells which stick to【C3】______. In fact, though, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of【C4】______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【C5】______smell receptors in the nose. These receptors are the cells which sense smells and send【C6】______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 exposed 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【C8】______new receptors if necessary. This may also explain why we are not usually sensitive to our own smells-we simply 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.
【C7】
选项
答案
F
解析
由find it a.to do sth.结构可知,此处填入形容词。此处所填的形容词用于修饰空格后的to keep all smell receptors working au the time。结合下文提到的大脑觉得最好(finds it best)让气味感受器在出现陌生信号时有效地工作,由此可推断空格处是要说明让所有感受器一直工作会“效率低”。inefficient“效率低的;无效率的”符合题意。incompetent“不能胜任的”用于修饰人,不符合语义。
转载请注明原文地址:https://kaotiyun.com/show/UwJK777K
0
专业英语四级
相关试题推荐
Choosingacarisnotunlikechoosingadress.Youshouldnotonlyreadtheprice______butalsoconsidertheimageitconveys.
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]experience[G]lazy[H]noisy[I]pr
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]experience[G]lazy[H]noisy[I]pr
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]experience[G]lazy[H]noisy[I]pr
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]experience[G]lazy[H]noisy[I]pr
随机试题
卡斯特等人的管理理论被人们称为【】
酶原指的是()
关于生长因子的叙述,错误的是
我国的关税减免政策由法定减免、特定减免和临时减免三部分组成。
时代精神的核心是()。
尽管他后来步人了哲学上的悲观主义,但这和他的生活景况是不相干的,而在现实世界中,他可以算是一个幸运儿了。这段话的主要意思是说()。
实际工作中的教条主义和思想僵化,认为人们可以穷尽对真理的认识。从真理观的角度看这属于()
求
请用100字以内的文字简要说明逻辑数据流图(LogicalDataFlowDiagram)和物理数据流图(PhysicalDataFlowDiagram)之间的主要差别。请根据系统功能描述数据流图,并使用[说明]中的词汇,将以下数据字典条目
A、 B、 C、 A询问需要多长时间的Howlong…?(要多久?)疑问句→回答所需时间
最新回复
(
0
)