一、名词形式：Addict
Addict 作为名词，指对某种物质如药物、酒精或行为如游戏、购物产生依赖的人，后常接介词 to + 成瘾对象。- 基础搭配：a drug addict吸毒成瘾者、a work addict工作狂、a social media addict社交媒体沉迷者。
- 实例：Video game addicts may neglect daily responsibilities to play for hours.
二、动词形式：Addict
Addict 作为动词，意为“使沉溺，使上瘾”，主动语态罕见，多以被动形式 “be addicted” 出现，“某人被某物/行为迷住”。- 核心结构：be addicted to + 名词/动名词to为介词，不可接动词原形。
- 实例：She was addicted to caffeine after years of daily coffee consumption. / Teenagers often get addicted to scrolling through short-video apps.
三、派生形容词：Addicted
Addicted 为形容词，描述人“对……上瘾的，入迷的”，仅用于修饰人，不可直接修饰事物。- 固定搭配：become addicted to逐渐上瘾、remain addicted to持续沉迷。
- 实例：He became addicted to fitness after noticing improvements in his health. / Many smokers are addicted to nicotine without realizing it.
四、派生名词：Addiction
Addiction 是addict的名词形式，指“成瘾状态；瘾，嗜好”，可用于描述物质成瘾如drug addiction或行为成瘾如gambling addiction。- 常用动词搭配：develop an addiction形成瘾、overcome an addiction克服瘾、struggle with addiction与瘾斗争。
- 实例：Overcoming addiction requires professional treatment and strong willpower. / Her addiction to online shopping left her in debt.
五、派生形容词：Addictive
Addictive 为形容词，描述事物“具有使人上瘾特性的”，仅用于修饰事物如药物、活动、内容，不可修饰人。- 典型对象：addictive drugs成瘾性药物、addictive games使人沉迷的游戏、addictive content容易让人沉迷的内容。
- 实例：The new mobile game is highly addictive, with users spending hours daily. / Some snacks contain additives that make them more addictive.