🌟全文结构
1 Emotions can flow from muscular responses.
归纳：情绪来自于肌肉反应
In an experiment, psychologist asked volunteers to hold a pen either with their teeth-thereby
creating an artificial smile- or with their lips, which would produce a disappointed expression.
演绎：做实验，简述实验过程
3 Those reacted more enthusiastically to funny cartoons than did those, suggesting that expressions may influence emotions.
演绎：做实验，简述实验结论：情绪来源于表情
Similarly, the physical act of laughter could improve mood.
归纳：同理，情绪来源于微笑的生理反应
🌟2011 词汇点睛：
•precious ：a.宝贵的
•internal：a.体内的，内心的
•strain：v.拉紧，绷紧
• conceivable：a.可能的
•feedback：n.反馈，反应
•artificial：a做作的，虚伪的
•contract：v缩小，(使)收缩
•aggravate： v恶化，加剧
•moderate： v.缓和，减轻
•measurable：a品著的，重大的
•subconscious： a.下意识的
•boost：v.促进，提高，改善
