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
考研
In a purely biological sense, fear begins with the body’s system for reacting to things that can harm us—the so-called fight-or-
In a purely biological sense, fear begins with the body’s system for reacting to things that can harm us—the so-called fight-or-
admin
2019-06-11
78
问题
In a purely biological sense, fear begins with the body’s system for reacting to things that can harm us—the
so-called fight-or-flight response
. "An animal that can’t detect danger can’t stay alive," says Joseph LeDoux. Like animals, humans evolved with an elaborate mechanism for processing information about potential threats. At its core is a cluster of neurons deep in the brain known as the amygdala.
LeDoux studies the way animals and humans respond to threats to understand how we form memories of significant events in our lives. The amygdala receives input from many parts of the brain, including regions responsible for retrieving memories. Using this information, the amygdala appraises a situation—I think this charging dog wants to bite me—and triggers a response by radiating nerve signals throughout the body. These signals produce the familiar signs of distress: trembling, perspiration and fast-moving feet, just to name three.
This fear mechanism is critical to the survival of all animals, but no one can say for sure whether beasts other than humans know they’re afraid. That is, as LeDoux says, "if you put that system into a brain that has consciousness, then you get the feeling of fear."
Humans, says Edward M. Hallowell, have the ability to call up images of bad things that happened in the past and to anticipate future events. Combine these higher thought processes with our hardwired danger-detection systems, and you get a near-universal human phenomenon: worry.
That’s not necessarily a bad thing, says Hallowell. "When used properly, worry is an incredible device ," he says. After all, a little healthy worrying is okay if it leads to constructive action—like having a doctor look at that weird spot on your back.
Hallowell insists, though, that there’ s a right way to worry. "Never do it alone, get the facts and then make a plan." He says. Most of us have survived a recession, so we’re familiar with the belt-tightening strategies needed to survive a slump.
Unfortunately, few of us have much experience dealing with the threat of terrorism, so it’s been difficult to get fact about how we should respond. That’ s why Hallowell believes it was okay for people to indulge some extreme worries last fall by asking doctors for Cipro and buying gas masks.
The "so-called fight-or-flight response"(Para. 1)refers to
选项
A、the biological process in which human beings’ sense of self-defense evolves.
B、the instinctive fear human beings feel when faced with potential danger.
C、the act of evaluating a dangerous situation and making a quick decision.
D、the elaborate mechanism in the human brain for retrieving information.
答案
B
解析
推断题。由题干定位到第一段。文章首句中,破折号前面的部分是对so-called fight-or-flight response的同义解释。B项中的the instinctive fear对应文章中的fear begins with the body’s system, feel when faced with对应reacting to,potential danger对应thing that can harm us。
转载请注明原文地址:https://kaotiyun.com/show/yo9Z777K
0
考研英语一
相关试题推荐
Theideathatmusicmakesyousmarterhasreceivedconsiderableattentionfromscholarsandthemedia.Currentinterestin【C1】__
Beforetheglobalfinancialcrisis,emergingeconomieslikeChinaaspiredto"decouple"themselvesfromtherichworld,hopingt
WiththestartofBBCWorldServiceTelevision,millionsofviewersinAsiaandAmericacannowwatchtheCorporation’snewscov
WiththestartofBBCWorldServiceTelevision,millionsofviewersinAsiaandAmericacannowwatchtheCorporation’snewscov
WiththestartofBBCWorldServiceTelevision,millionsofviewersinAsiaandAmericacannowwatchtheCorporation’snewscov
Iftheworld’seducationsystemshaveacommonfocus,itistoturnoutschool-leaverswhoareproficientinmaths.Governments
Whenasearchengineguesseswhatyouwantbeforeyoufinishtypingit,orhelpfullyignoresyourbadspelling,thatistheresu
TheAmericaneconomicsystemisorganizedaroundabasicallyprivate-enterprise,market-orientedeconomyinwhichconsumerslarg
随机试题
退火不能细化或均匀组织。
简述具体或微观环境的主要内容。
合同法规定的撤销权行使的期间为1年,该期间开始的时间是()
供应视网膜内5层营养的血供来源为
诊断二尖瓣狭窄最有价值的方法是
男性,37岁,急刹车致使方向盘挤压上腹部16小时,上腹部、腰部及右肩疼痛,持续,伴恶心、呕吐。查体体温38.4℃,上腹部肌紧张明显,有压痛,反跳不明显,无移动性浊音,肠鸣音存在,怀疑胰腺损伤。如果行剖腹探查术.术中最有可能发现合并损伤的脏器是
患者女,23岁。既往体健,近半年来脑子里总是反复考虑某些事情,感到苦恼,自己知道这些问题没必要考虑,但不能控制,影响自己的学习和生活。应首选的治疗药物是
建筑场地地形条件包括()。
《中华人民共和国保险法》第94条规定:保险公司应当根据()原则,提取各项责任准备金
党的十六大报告指出,贯彻“三个代表”重要思想,其核心在于坚持()。
最新回复
(
0
)