首页
登录
职称英语
[originaltext] We’ve been looking at fear from biological perspective. And so
[originaltext] We’ve been looking at fear from biological perspective. And so
游客
2023-08-13
76
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/2921260.html
相关试题推荐
[originaltext]TodayI’dliketotalkaboutthesculptorHenryMoore,inpa
[originaltext]TodayI’dliketotalkaboutthesculptorHenryMoore,inpa
[originaltext]TodayI’dliketotalkaboutthesculptorHenryMoore,inpa
[originaltext]Inthe18thcenturyFrencheconomistsprotestedtheexcessive
[originaltext]TheEducationSelectCommitteehasbeenexaminingtheunderac
[originaltext]TheEducationSelectCommitteehasbeenexaminingtheunderac
[originaltext]TheeconomiccrisisinEuropeandNorthAmericaledtomoret
[originaltext]TheeconomiccrisisinEuropeandNorthAmericaledtomoret
[originaltext]M:Goodmorning.Doctor.W:Goodmorning,Mr.White.WhatcanId
[originaltext]M:Goodmorning.Doctor.W:Goodmorning,Mr.White.WhatcanId
随机试题
Peoplearemovingtocitiesindroves.In1950,two-thirdsoftheworlds’po
[originaltext]Digitaltextbooksarechangingthewaymanystudentslearn.Al
TrustMe,I’maRobot[A]Withrobotsnowemergingfromt
HowPovertyChangestheBrainA)Yousawthepicturesinscien
网架是一种新型结构,是由许多杆件按照一定规律组成的网状结构,其优点不包括( )
单一法人客户信用风险识别中,对于中长期授信,要对()作出预测和分析。A.资金来源
下列关于保证的描述正确的是()。A.一般保证不具有补充性 B.一般保证人没
下列属于我国飞机保险基本险的有( )。A.飞机机身保险 B.飞机第三者责任保
(2021年真题)根据反垄断法律制度的规定,涉嫌垄断行为的经营者在被调查期间可以
在竣工结算审查的内容中,一般包括的有()。A.检查材料验收记录 B.核对合同
最新回复
(
0
)