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
2023-08-23
16
管理
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is largely because, unlike animals, we stand upright This means that our noses are【C1】______to perceiving those smells which float through the air, missing the majority of smells which stick to surfaces. In fact, though, we are【C2】______sensitive to smells, even if we do not generally realize it. Our noses are capable of【C3】______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【C4】______smell receptors in the nose. These receptors are the cells which sense smells and send【C5】______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【C6】______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 create new receptors if necessary. This may also explain why we are not usually sensitive to our own smells—we【C8】______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.
A)simply B)emergency C)aware D)detecting
E)permanently F)limited G)sure H)inefficient
I)dedicated J)exposed K)impulses L)messages
M)distinguishing N)particular O)extremely [br] 【C9】
选项
答案
C
解析
空格介于系动词are和介词of之间,推测为固定搭配。能符合此搭配的词有aware和sure。be aware of意为“意识到”,带人句中表示“我们意识不到我们自己的房子通常的气味”,句意通顺。而sure代人句中则表示“对自己房间的熟悉气味没有把握”,不符合逻辑。
转载请注明原文地址:https://tihaiku.com/zcyy/2951583.html
相关试题推荐
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensi
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensi
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensi
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensi
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensi
Researchonanimalintelligencealwaysmakesuswonderjusthowsmarthumans
Researchonanimalintelligencealwaysmakesuswonderjusthowsmarthumans
Researchonanimalintelligencealwaysmakesuswonderjusthowsmarthumans
Researchonanimalintelligencealwaysmakesuswonderjusthowsmarthumans
Researchonanimalintelligencealwaysmakesuswonderjusthowsmarthumans
随机试题
[originaltext]M:Mymotherwillbecomingtovisitusovertheweekend,dear.W
常见的工程图纸图例有()。A.标题栏 B.会签栏 C.比例尺 D.钢筋
资产评估机构及其评估专业人员履行资产评估程序的作用不包括( )。A.保证资产评
下列表述中,属于基金管理人合规管理活动的有()。 Ⅰ营造公司合规文化
时间分辨荧光免疫分析所测定的特异光信号来自A:FITCB:TRITCC:RB
1.统一发展战略的基本要求是在全公司推行统一的战略目标、(),自
饭店行业规范推动者对于行业健康发展的贡献主要体现在( )。A.维护行业形象
(2018年真题)下列各种投资组合中,一般情况下最适合即将退休的投资人的是(
商业银行应将理财投资合作机构名单于业务开办()报告监管部门。A.10日前 B.
某水库枢纽工程,总库容为5.84×108m3,装机功率为150MW。施工单位与项
最新回复
(
0
)