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
29
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.
Physical dependence on certain substances results from______.
选项
A、uncontrolled consumption of them over long periods of time
B、exclusive use of them for social purposes
C、quantitative application of them to the treatment of diseases
D、careless employment of them for unpleasant symptoms
答案
A
解析
本题可参照文章第2段的倒数两句话。从中可知,反复使用一种物质也会导致对该物质的生理上瘾或对药物依赖;依赖性起初表现为耐受性不断增强,需要越来越多的药物才能获得所需的效果,一旦停用,就会产生不舒服的症状。据此可知,对某些物质的生理依赖,是由于人们长时间、大量使用这些物质所造成的。A项与文章的意思相符;B项不正确,文中是说“喝一点酒以增进友谊”,但并没有说这会导致对酒的生理依赖;C项和D项明显不是对某些物质生理依赖的原因。综上所述,只有A项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/xlLO777K
0
考博英语
相关试题推荐
Potentiallyofferingapowerfulnewtoolagainstterrorism,researchershavefoundanovelwaytodetectdeception:intheliar’
Manyobjectsindailyusehaveclearlybeeninfluencedbyscience,buttheirformandfunction,theirdimensionsandappearance
Themostexcitingkindofeducationisalsothemost.Nothingcan【61】thejoyofdiscoveringforyourselfsomethingthatisimpor
IhaveneverseenMrs.Clarkbefore,butIknowfromhermedicalchartandthereportIreceivedfromtheprecedingshiftthatt
IhaveneverseenMrs.Clarkbefore,butIknowfromhermedicalchartandthereportIreceivedfromtheprecedingshiftthatt
IhaveneverseenMrs.Clarkbefore,butIknowfromhermedicalchartandthereportIreceivedfromtheprecedingshiftthatt
OnecountrythatiscertainoftheeffectoffilmsontourismisAustralia.TheTouristOfficeofQueenslandsaythatCrocodile
EveryyearNewZealanderslivinginLondoncanbeseenloadingupKombivansandheadingofftoexperiencethe"classicEuropean
Humanbeingisaproductoftheconsecutivelyevolutionalprocesswhichinvolvescountlesstimesofgenetictransformation.Thei
Theelectroniccomputeris______someofthetasksthatwereonceaccomplishedbyourownbrains.
随机试题
A.睾丸鞘膜积液B.精索鞘膜积液C.交通性鞘膜积液D.腹股沟斜疝阴囊囊性肿块,站立位时阴囊肿大,透光试验阳性,卧位时肿块缩小或消失,睾丸可触及
国家鼓励境内外组织和个人通过
经代谢转变生成牛磺酸的氨基酸是
可能造成轻度环境影响的,应当编制(),对产生的环境影响进行分析或者专项评价。
当事人双方在合同中约定解决争议的方法只能为调解。当纠纷发生后,若一方坚持不同意调解,此时争议解决方式为()。
火把节是彝族最盛大的传统节日,各地节期不一,一般在农历()。
设某商品需求量Q对价格P的函数关系为求需求Q对于价格P的弹性函数.
请根据如图5所示的网络结构回答下列问题。(1)填写路由器RG的路由表项【1】~【5】。(2)如果该网内服务器群的IP地址为59.67.57.11~59.67.57.25,并且采用一种设置能够对服务器群提供如下保护措施:发送到服务器群的数据包将被进行
下列关于世界上第一台电子计算机ENIAC的叙述中,错误的是()。
Whatisthespeakergoingtodo?
最新回复
(
0
)