mania: usually implies excessive or unreasonable enthusiasm: a society with a ~ for football.   mania for something完全等于madness for something


delirium: adds the notion of extreme emotional excitement: in a ~ of ecstasy at the thought of seeing her again.  注意不要写成tacy     这个词还表示谵妄即神志错乱，表现为兴奋、语无伦次、无法集中注意力，由于发烧、疾病或高龄引起。谵妄delirium和痴呆dementia是老年常见的意识障碍      这个词的解释好记，因为三个词都以e开头


frenzy: suggests loss of self-control and violent agitation often manifested in action: shoppers driven to a ~ during the annual sale. （manifest清楚展现展示implies a plain, direct, immediate revelation，如manifested her musical talent at an early age她小时候就展现出音乐天赋）  annual sale年度促销


hysteria: implies emotional instability that is often marked by swift transitions of mood: the ~ of fans.  （swift既快速又轻松suggest great rapidity coupled with ease of movement，如returned the ball with one swift stroke轻快地把球回过去.  《When you believe》歌词中有句hope is like a summer bird, too swiftly flown away希望就象夏天的小鸟，转眼飞走不见）  中日钓鱼岛争端时，日方曾职责中方'hysterical歇斯底里'，中方对日方使用这种语言表示'shocked震惊'


mania狂热: 指过度不合理的热情，delirium兴奋、谵妄: 增加了极端兴奋的意思，还表示谵妄症，frenzy狂乱: 表示情绪失控，常表现出紧张狂暴的行为(如美国年度促销时，顾客冲抢货架上的商品)，hysteria歇斯底里: 指精神不稳定，情绪快速变化


记忆方法: 1）首字母MDFH从后往前看是很疯癫么<==疯狂      疯狂的程度比疯癫强，疯癫只是形容一个人与常人不一样，言行举止不合常规，这一组强调狂，即精神失控反应暴烈

         2）疯狂的意思是反应夸张情绪思维精神失控mean a state marked by exaggerated reactions and a loss of emotional, mental, or nervous control.    很多人把精神病叫成神经病，是因为早期医学不发达，误以为是神经系统失常造成的，所以把精神病叫成了神经病，习惯沿用了下来