首页
登录
职称英语
A. limited B. distinguish C. unlike D. particular
A. limited B. distinguish C. unlike D. particular
游客
2024-08-31
31
管理
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. [br] 【C8】
选项
答案
G
解析
空格前的can提示,此处填入动词原形。new receptors本来是没有的(所以对某些花香不敏感),经与刺激物经常接触而产生,从而可以清晰感受到这些刺激。这是从无到有的过程,create“创造;引发”符合语义。trigger the receptors(激活受体)是英语中常见的搭配,但所谓“激活”应该是对现已存在的(但没有起作用的)事物而言,既然大脑中并不存在这种气味的受体。“激活”也就无从谈起,故不选trigger“激活,触发”。
转载请注明原文地址:https://tihaiku.com/zcyy/3737829.html
相关试题推荐
Streetsellers,particularlyindevelopingcountries,supplylargeamountsoffo
Streetsellers,particularlyindevelopingcountries,supplylargeamountsoffo
Streetsellers,particularlyindevelopingcountries,supplylargeamountsoffo
Streetsellers,particularlyindevelopingcountries,supplylargeamountsoffo
Streetsellers,particularlyindevelopingcountries,supplylargeamountsoffo
[A]menu[B]access[C]ineffective[D]enhanced[E]routine[F]particularly[G]co
[A]menu[B]access[C]ineffective[D]enhanced[E]routine[F]particularly[G]co
[A]menu[B]access[C]ineffective[D]enhanced[E]routine[F]particularly[G]co
[A]menu[B]access[C]ineffective[D]enhanced[E]routine[F]particularly[G]co
[A]menu[B]access[C]ineffective[D]enhanced[E]routine[F]particularly[G]co
随机试题
Whatisthemainideaofthepassage?A、Dogswhichshareourlivingenvironmentm
Oneofthequestionscomingintofocusaswefacegrowingscarcityofresour
Beforediscussingtheeffectofdeflationandinflationonthedistribution
[originaltext]Inrecentyears,BillGateshasgivenfinancialsupporttoimprov
有甲、乙两袋奖券,获奖率分别为p和q,某人从两袋中各司机抽取1张奖券,则此人获奖
被审计单位将下列材料采购过程中发生的支出计入采购成本,错误的是:A.保险费
为实现工程进度动态控制,项目管理人员的主要工作包括()。A:准备编制进度计划的
经国务院证券监管机构批准设立的(),是为证券交易提供集中登记、存管与结算服务,
从所给四个选项中,选出最合适的一个填入问号处,使之呈现一定规律性: A.如图所
下列方法中可减少评定误差的是( )。A.选择合适的量表 B.评定等级的划分越
最新回复
(
0
)