首页
登录
职称英语
A. limited B. distinguish C. unlike D. particular E. triggerF. inefficient G. c
A. limited B. distinguish C. unlike D. particular E. triggerF. inefficient G. c
游客
2024-09-15
2
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] 【C9】
选项
答案
K
解析
空格前的are表明此处需要填入动词的过去分词形式或形容词。后面提到对于new smells我们一定能发觉(notice),由表转折的but可推知,空格所在的分句是要表达“对于usual smell我们一定是没感觉”。be not aware of“没有察觉到的”符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3758850.html
相关试题推荐
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[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
ShouldYouLearnThai?HereareeightfeaturesaboutThailanguagetohelpstude
信令网按结构分为无级信令网和分级信令网。()
影响X线照片对比度的最主要因素是()A.毫安值 B.曝光时间 C.千伏值
建设用地费属于( )。A.建筑安装工程费用 B.企业管理费 C.工程建设其
贷款利息是货币所有者因暂时让渡一定货币资金使用权而从借款人那里取得的报酬。(
(2020年真题)两个或两个以上的当事人按共同商定的条件,在约定的时间内定期交换
A.打开阀门K后,由于受重力作用,水将从甲流到乙 B.打开阀门K后,由于b处的
某女,17岁,上前牙刷牙时牙龈易出血,经检查上前牙牙面较多菌斑堆积,唇侧牙龈肿胀
下列业务不发生消费税纳税义务的是()。A.汽车销售公司零售超豪华小汽车
用人单位经职工同意不安排年休假的,应当在本年度内对职工应休未休年休假天数,按照其
最新回复
(
0
)