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
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
2015-01-15
27
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 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.
Once one was dependent on a kind of substance, he/she______.
选项
A、would require more and more of the substance
B、could recover and never need the substance again
C、would feel unpleasant with more of the substance
D、must have the substance everyday
答案
A
解析
本题考查细节问题,参照文章第2段可知,“依赖的起初症状为耐受力增强,用量愈来愈大才能达到预期效果,一旦停用就会产生不舒服的症状”,因此选A项。
转载请注明原文地址:https://kaotiyun.com/show/xqhi777K
0
在职申硕(同等学力)英语
相关试题推荐
ItistheinteractionAbetweenpeople,Bratherthantheeventsthatoccurintheirlives,thatCarethemainfocusDofsocialps
Revengeisoneofthosethingsthateveryoneenjoys.Peopledon’tliketotalkaboutit,though.Justthesame,thereisnothing
Revengeisoneofthosethingsthateveryoneenjoys.Peopledon’tliketotalkaboutit,though.Justthesame,thereisnothing
Somepeoplefeelsadaboutglobalizationbecausetheybelieveitwill______ItisimpliedinthepassagethatNikeandCoca-co
Somepeoplefeelsadaboutglobalizationbecausetheybelieveitwill______Internetwasoriginallydesigned______
Nearlyeleventhousandpeoplehavebeenarrestedfordefyingthebanonstreettrading.
Seniorcitizensareadvisedtogoinforsomecreativeactivitiestokeepthemselvesmentallyyoung.
Daltonwonderedwhytheheavierandlightergasesintheatmospheredidnotseparateasoilandwaterdo.Hefinallyconcludedt
Daltonwonderedwhytheheavierandlightergasesintheatmospheredidnotseparateasoilandwaterdo.Hefinallyconcludedt
Daltonwonderedwhytheheavierandlightergasesintheatmospheredidnotseparateasoilandwaterdo.Hefinallyconcludedt
随机试题
关于哮证的治疗,古代医学家中谁提出未发以扶正为主,既发以攻为急的原则
血液中缓冲碱(BB)是指血中一系列具有缓冲作用的碱的总和,不包括
A.补肾纳气.降气平喘B.温肾健脾.化痰利水C.化痰降气.健脾益肺D.清肺化痰.降逆平喘E.涤痰、开窍、熄风患者咳喘反复发作数年.5天前着凉后加重,咳逆喘促,痰多,谵妄,烦躁不安,神志恍惚,肢体瞤动,舌质暗红,舌苔黄腻.脉滑数。治疗宜用
A公司某项目部承建一供水扩建工程,主要内容为新建一座钢筋混凝土水池,长32m,宽40m,池体深6.5m基坑与邻近建筑物距离2.6m,设计要求基坑用灌注桩作为围护结构,搅拌桩作止水帷幕。项目部编制了详细的施工组织设计,其中水池浇筑方案包含控制混凝土入模温度,
土方工程中,筏板基础的混凝土强度达到( )时,再进行基坑回填。
按照《公司法》,我国公司的组织形式包括()。Ⅰ.合伙公司Ⅱ.有限合伙公司Ⅲ.有限责任公司Ⅳ.股份有限公司
企业取得与综合性项目相关的政府补助,且难以区分为与资产相关的部分和与收益相关的部分的,应整体归类为与资产相关的政府补助。()
冬天上学,某学生既怕寒冷而不愿意起床,又怕因迟到而受到老师的批评,由此产生的冲突是()。
绿色的追逐我们常说生命是绿色的,而对于生命的追逐也就顺理成章地成为了绿色的追逐,这种追逐本身也彰显出绿色是一种生机勃勃斗志昂扬的颜色。动物的追逐中有一种难能可贵的精神,那就是长途跋涉夸父追日的精神。夸父诞宏志,乃与日竞走。夸父
《非战公约》
最新回复
(
0
)