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 believ
Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistakenly believ
admin
2014-11-27
38
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 in 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 behaviour are known as psychoactive substances. Psychoactive substances are commonly grouped according to whether they are stimulants, depress ants, 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.
What results in physical dependence on certain substances?
选项
A、Exclusive use of them for social purpose.
B、Applications of them to the treatment of disease.
C、Careless employment of them for unpleasant symptoms.
D、Excessive consumption of them over long periods of time.
答案
D
解析
原文定位于第二段,“Repeated use of a substance can also lead to physical addiction or substancedependence.”反复使用一种物质也会导致生理上瘾或药物依赖,“excessive consumption”对应“repeated use”,意为“过度使用”。因此,正确答案是D。
转载请注明原文地址:https://kaotiyun.com/show/iVm7777K
0
大学英语六级
相关试题推荐
A、Keepingawayfromthelonelyperson.B、Offeringahandtothelonelyperson.C、Raisingthelonelyperson’sdailyemotion.D、De
MyViewpointonWidespreadSMS1.现在越来越多的年轻人把手机短信作为交流的主要渠道2.使用手机短信的利与弊3.我的观点
A、Giveahandtothewoman.B、Putoutabigfire.C、Goabouthisbusiness.D、Ironhisclothes.C
DearDigitalDiary—LifeloggingintheInternetAgeFromsleepingandeatingtoexerciseandtravel,technologynowallowsus
Whenyou’reeightmonthspregnant,it’shardtofindagoodinterviewsuit.Butafast-growingbellydidn’tstopNicoleYoung,3
Whenyou’reeightmonthspregnant,it’shardtofindagoodinterviewsuit.Butafast-growingbellydidn’tstopNicoleYoung,3
Forthispart,youareallowed30minutestowriteashortessayentitledTheAdvantagesofOnlineLearning.Youshouldwriteat
A、Producegreenfood.B、Wastenofood.C、Quiteatingmeats.D、Growvegetables.C细节推断题。短文最后提到,现在很多人意识到,为了改善环境、帮助人类生存,更多的人必须素食,即放弃
Atsomepointin2008,someone,probablyineitherAsiaorAfrica,madethedecisiontomovefromthecountrysidetothecity.T
A、Wifeandhusband.B、Passengerssittingnexttoeachother.C、Flightattendantandpassenger.D、Doctorandpatient.C推断题。由Excus
随机试题
乳腺囊性增生病的典型临床表现是
皮内注射法的进针角度为
下列何种情境不属于剥夺当事人的辩论权利:()
根据大坝的结构特点和设计要求,为达到选取恰当的防渗措施和校验建筑物在渗流作用下是否安全的目的,应进行()的计算.
赋予公民特定资格的行政许可,该公民死亡或者丧失行为能力的,行政机关应当依法()许可。
下列情形中,注册会计师应当将其评估为存在特别风险的是()。
下列描述属于个案管理实施原则的有( )。
(2014上项管)(2007上系分)有八种化学药品A、B、C、D、W、X、Y、Z要装箱运输。虽然量不大,仅装1箱也装不满,但出于安全考虑,有些药品不能同装一箱。在下表中,符号“×”表示相应的两种药品不能同装一箱。运输这八种化学药品至少需要装______(1
有以下程序:#include<string.h>main(){charp[]={’a’,’b’,’c’},q[10]={’a’,’b’,’c’};printf("%d%d\n",strlen(p),s
Completethenotesbelow.WriteONEWORDAND/ORANUMBERforeachanswer.DRIVINGSCHOOLExampleAnswerLookingfordrivingless
最新回复
(
0
)