Addiction 大学英语课用ppt.pptVIP

Addiction Produced by xxx　　　　 Drug addiction is?a?habit?of?drug addiction?with?physical dependence,?psychological dependence, harm?the?mechanism?of?the human body. 毒瘾是指嗜毒的癖好，具有身体依赖性、精神依赖性 、危害人体的机理等特点 CONCEPT Addiction implies that a drug dependency has developed to such an extent that it has serious detrimental effects on the user. They may be chronically intoxicated, have great difficulty stopping the drug use, and be determined to obtain the drug by almost any means. 瘾意味着使用者对药物的依赖已经发展到有严重不良影响的程度。他们可能是长期沉迷，停止使用药物有很大的难度，并且致力于用任何手段获得药物。 The? conformation ?of?drug addiction When?drug users?injected, inhaled or?swallowed?the?drug,?the?happy?nerve?ring?in?the brain?is?to?draw?a?straight line,?greatly reducing the?distance?of?dopamine?transmission, strengthen?the?feelings of happiness?in?the?brain.?Each drug?has?a variety of ways?to stimulate?the?brain cells. 当吸毒者注入、吸入或吞下毒品时，大脑中的快乐神经圈被划出一道直线，大大缩短了多巴胺的传递距离，加强了大脑中的快乐感受。每种毒品有各种办法刺激脑细胞。 The harm of drug to the body and mind Physical dependence Once?the?drug?is?stopped,?the?physiological functions?are disturbed,?there will be a series of?serious reactions, known as?the?withdrawal response, make people feel?very painful 一旦停掉药物，生理功能就会发生紊乱，出现一系列严重反应，称为戒断反应，使人感到非常痛苦。 Psychological dependence The?drugs?enter the body?and then act on?the nervous system, so that?drug users?will have a?strong desire?for?the drug,?desperate to?seek?and use?drugs. 毒品进入人体后作用于人的神经系统，使吸毒者出现一种渴求用药的强烈欲望，驱使吸毒者不顾一切地寻求和使用毒品。 南京一美女当街毒瘾发作 Classification Marijuana 大麻 Herion 海洛因 Cocaine 可卡因 Opium 鸦片 Morphine 吗啡 Pethidine 杜冷丁 caffeine 咖啡因 stimulants 兴奋剂 hallucinogens 迷幻剂 Inhalants 吸入剂 prescription drugs 处方药 …… It is common knowledge that drug abuse leads to harmful consequences. Why then do people, continue to use drugs? Psychologists claim that there are three basic motivations that influence people to take drugs: curiosity, stress and environmental factors. 好奇心 压力 环境因素 Note! The harm of addiction is very clear. To the people who with a drug p