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
专升本
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is larg
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is larg
admin
2011-01-24
39
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is largely because,【57】animals, we stand upright. This means that our noses are【58】to perceiving those smells which float through the air,【59】the majority of smells which stick to surfaces. In fact【60】, we are extremely sensitive to smells,【61】we do not generally realize it. Our noses are capable of【62】human smells even when these are【63】to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another,【64】others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【65】smell receptors in the nose. These receptors are the cells which, sense smells and send【66】to the brain. However, it has been found that even people insensitive to a certain smell【67】can suddenly become sensitive to it when【68】to it often enough. The explanation for insensitivity to smell seems to be that brain finds it【69】to keep all smell receptors working all the time but can【70】new receptors if necessary. This may【71】explain why we are not usually sensitive to our own smells. We simply do not need to be. We are not【72】of the usual smell of our own house but we【73】new smells when we visit someone else’s. The brain finds it best to keep smell receptors【74】for unfamiliar and emergency signals【75】the smell of smoke, which might indicate the danger of fire.
选项
A、sure
B、sick
C、aware
D、tired
答案
C
解析
词义辨析题。sure确信的;sick厌倦的;aware意识到……的;tired厌倦的;sick of=be tired of。根据文意应该选be aware of。
转载请注明原文地址:https://kaotiyun.com/show/ChGC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Fewofusthoughtthattheproblemwasworth______.
Whileactingmayruninthefamily,itwasn’tAngelinaJolie’sonlychoicewhenshethoughtaboutherfuturecareer.AlthoughJo
Whileactingmayruninthefamily,itwasn’tAngelinaJolie’sonlychoicewhenshethoughtaboutherfuturecareer.AlthoughJo
Theyareoften______caringmoreaboutanimalsthanhumanbeings.
Oncesomebodythoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesandheavyautomob
Howwelldoyouknowyourdog?Theansweris,notnearlyaswellasyourdogknowsyou.Giventherightmotivation,humanscanc
Howwelldoyouknowyourdog?Theansweris,notnearlyaswellasyourdogknowsyou.Giventherightmotivation,humanscanc
随机试题
非智力品质
鸡群中发生腿屈曲、头颈扭曲甚至出现翻转,跌倒或坐地滚转病例,最可能是缺乏
建筑工程室内装修材料,以下哪种材料燃烧性能等级为A级?[2005年第013题]
以下关于热熔连接的叙述正确的是()。
某公司拟发行面值为1000元,不计复利,5年后一次还本付息,票面利率为10%的债券。已知发行时资金市场的年利率为12%,则该公司债券的发行价格为( )元。
下列哪些情形,由旅游行政管理部门责令改正,暂扣导游证3至6个月,情节严重,由省级旅游局吊销导游证并予以公告()
违反治安管理有下列()情形之一的,从重处罚。
小张是行政中心的服务人员,工作认真勤恳。有一次有群众不按要求办事,小张帮他指出,但群众认为小张是故意刁难,并投诉了小张。为此。小张情绪不好,作为同事的你怎么劝导他?请你现场模拟。(国税面试真题)
Afterhismilitarydefeatin1865,RobertE.LeeentreatedthepeopleoftheSouthtoworkfornationalharmony.
AcademicResearchandProjectDesignI.Introduction—【T1】isaspringofcreationwhileinterestisapowersourcefor【T1】_____
最新回复
(
0
)