首页
登录
职称英语
[originaltext] We’ve been looking at fear from biological perspective. And s
[originaltext] We’ve been looking at fear from biological perspective. And s
游客
2024-04-09
44
管理
问题
We’ve been looking at fear from biological perspective. And someone asked whether the tendency to be fearful is genetic. While some study done with mice indicate that mammals do inherit fearfulness to some degree. In one study for instance, a group of mice were placed in the bright lit open boxes with no hiding places. Some of the mice wondered around the box and didn’ t appear to be bothered about being so exposed. But other mice didn’ t move. They stayed up against one wall, which indicate that they were afraid. Well, when fearful mice or you might say anxious mice like ones who stayed in one place. When mice like this were bred with one another repeatedly, after about 12 or so generations, then all of the offspring show similar signs of fearfulness. And even when the new born mouse from this generation was raised by a mother and with other mice who were not fearful, that mice still tend to be fearful as the result. Now, why is this? Well, it’s thought that the specific gene in animal body have influenced on the anxious behavior. These genes that are associated with particular nerve cell receptors in brain. And the degree of overall fearfulness in the mammal seem to depend in the large part on the presence or absence of these nerve cell receptors. And this appears to apply to humans as well by the way. But while the tendency towards anxiety and fear may well be an inherited trait, but the specific form that the fear takes has more to do individual environment. So a particular fear like the fear of snakes or the fear of spider, say, is not genetic. But the overall tendency to have fearful responses is. Now listen to the following recording and answer questions 16 to 18.
16. How did some of the mice in the study demonstrated that they were afraid?
17. According to the professor, what contribute to a mammal tendency to be fearful?
18. Why does the professor mention snakes and spiders?
选项
A、They fought with the other mice.
B、They stayed close to their mothers.
C、They ran back and forth constantly.
D、They remained close to one wall.
答案
D
解析
细节题。根据But other mice didn’t move.They stayed up against one wall,which indicate that they were afraid.可知研究中的老鼠靠在墙边,说明它们很害怕。因此,正确答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3547282.html
相关试题推荐
[originaltext]Choosingwhattoeatisnolongeraseasyasitoncewas.Sto
[originaltext]Choosingwhattoeatisnolongeraseasyasitoncewas.Sto
[originaltext]Choosingwhattoeatisnolongeraseasyasitoncewas.Sto
[originaltext]NewYorkers,wholiveinthecitythatfamouslyneversleeps,
[originaltext]NewYorkers,wholiveinthecitythatfamouslyneversleeps,
[originaltext]Recently,aprofessorofphilosophyintheUnitedStateshas
[originaltext]M:Hi,Janet,wherewereyouatlunchtime?Iwassavingaseatf
[originaltext]M:Hi,Janet,wherewereyouatlunchtime?Iwassavingaseatf
[originaltext]W:I’vebeenreadingaboutanewhealthysnackfood.It’smadefr
[originaltext]W:I’vebeenreadingaboutanewhealthysnackfood.It’smadefr
随机试题
WhatdidthemandolastSaturday?[br][originaltext]W:Didyougotothethea
Whiteneighborhoodsarebecomingdarkerin【1】______andmoreexpensive.【1】__
A.roleB.enormousC.InsteadofD.mutteringE.strikingF
UncleVernon,quiteunlikeHarryPotterwholookednothingliketherestofthe
Smoking(know)______toincreaseaperson’sriskofdevelopinglungcancer.isknow
招标代理机构代理招标业务时,应当遵守相关法律法规的规定。下列属于违法违规行为的有
为保证我国新闻事业永远属于人民所必须坚持的原则是()A.社会效益和经济效益的统一
外周血单个核细胞Ficoll分层液法从上而下第2层为A.血浆层 B.嗜酸粒细胞
汽车贷款风险控制的难度相对较大的原因包括( )。A.个人征信体系尚不完善 B
关于社会评价中关于社会评价中利益相关者的说法,错误的是()。A.利益相关者是指
最新回复
(
0
)