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
外语
Technically, any substance other than food that alters our bodily or mental functioning is a drug.Many people mistakenly believe
Technically, any substance other than food that alters our bodily or mental functioning is a drug.Many people mistakenly believe
admin
2015-05-29
75
问题
Technically, any substance other than food that alters our bodily or mental functioning is a drug.Many people mistakenly believe the term drug refers only to some sort of medicine or an illegal chemical taken by drug addicts.They don’t realize that familiar substances such as alcohol and tobacco are also drugs.This is why the more neutral term substance is now used by many physicians and psychologists.The phrase "substance abuse" is often used instead of "drug abuse" to make clear that substances such as alcohol and tobacco can be just as harmfully misused as heroin and cocaine.
We live a society in which the medicinal and social use of substances (drugs) is pervasive: an aspirin to quiet a headache, some wine to be sociable, coffee to get going in the morning, a cigarette for the nerves.When do these socially acceptable and apparently constructive uses of a substance become misuses? First of all, most substances taken in excess will produce negative effects such as poisoning or intense perceptual distortions.Repeated use of a substance can also lead to physical addiction or substance dependence.Dependence is marked first by an increased tolerance, with more and more of the substance required to produce the desired effect, and then by the appearance of unpleasant withdrawal symptoms when the substance is discontinued.
Drugs (substances) that affect the central nervous system and alter perception, mood, and behavior are known as psychoactive substances.Psychoactive substances are commonly grouped according to whether they are stimulants, depressants, or hallucinogens.Stimulants initially speed up or activate the central nervous system, whereas depressants slow it down.Hallucinogens have their primary effect on perception, distorting and altering it in a variety of ways including producing hallucinations. These are the substances often called psychedelic (from the Greek word meaning "mind manifesting") because they seemed to radically alter one’s state of consciousness.
The word "pervasive" (Line 1, Para.2) might mean______.
选项
A、widespread
B、overwhelming
C、piercing
D、fashionable
答案
A
解析
本题可参照文章第2段的第1句话。从中可知,在我们生活的社会,物质(药物)被广泛地应用于社交和医疗——服用阿司匹林以减缓头痛,喝点酒以增进友谊,早上喝咖啡以提神,吸烟以消除紧张情绪。据此可知,阿司匹林、酒、咖啡和烟等都是常用物品,因此“pervasive”的意思应该是“使用广泛的”。因此A项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/RlLO777K
0
考博英语
相关试题推荐
Potentiallyofferingapowerfulnewtoolagainstterrorism,researchershavefoundanovelwaytodetectdeception:intheliar’
Anthropologists,psychologistsandothershavebegunseekingtherootsofambitioninfamily,culture,gender,genesandmore.T
InNovember1970YukioMishima,togetherwithsomeofhisfanaticalfollowersfromtheultranationalisticShieldSocietywhichh
Engineeringstudentsaresupposedtobeexamplesofpracticalityandrationality,butwhenitcomestomycollegeeducationIam
ThehistoryofAfrican-Americansduringthepast400yearsistraditionallynarrated【21】anongoingstraggleagainst【22】andindif
Theenergycrisis,whichisbeingfeltaroundtheworld,hasdramatizedhowthecarelessuseoftheearth’sresourceshasbrough
Here,soprofligatehasitsusebecometheairconditionerisalmost______theautomobileofthenationaltendencytooverindulge
Somestudiesconfirmedthatthiskindofeyediseasewas______intropiccountries.(电子科技大学2005年试题)
Thedevelopmentofwritingwasoneofthegreathumaninventions.Itisdifficult【C1】______manypeopletoimaginelanguagewi
IworkasanofficeassistantinasmallbutgrowinggardenequipmentmanufacturingcompanyinCalifornia.Afewmonthsago,my
随机试题
销连接在机械中的主要作用是()
我国标准规定加速器辐射束轴的指示的检定周期为
在如图7—7所示电路中,当未接10V理想电压源时,I=5A,接入后,I将变为()A。
下列属于减征关税的进出口货物有( )。
证券交易风险防范的自律管理包括足额保证金制度、风险准备金制度和坏账准备等方面内容。()
某市一家用空调内资生产企业为增值税一般纳税人,为母公司的全资子公司,注册资本6000万元,职工1000人,2011年度有关生产经营业务如下:(1)全年实际占地共计60000平方米,其中厂房占地50000平方米,办公楼占地4000平方米,医务室占地1000平
()是限制自由的刑罚方法,是我国独创的刑罚种类。
以下中国历史上著名历史事件按发生先后顺序排序,完全正确的是()。
Obviouslyshewas______bytheshopownerwhenshewasshoppinginthatstore.
WecanlearnfromthefirstparagraphaboutJuventusthat______.ThebestwaytosavethecomingWorldCupisto______.
最新回复
(
0
)