求英语作文Why a teacher is important?要在两分钟内讲完，高中的演讲比赛，不要太幼稚

Why a Sense of Humor is Important

　　A sense of humor is universally considered the most valuable personality . It is born within every person's heart, but has to be cultivated. A person without humor is just like a spring without flowers and a dish without seasoning. In a sense, your personality lies in your sense of husmor.
Humor can enhance physical as well as mental well being. It helps us bear our burdens， lessen our tension, overcome our frustration, relax our body muscles, and dissolve countless trifles and irritations.
　　Humor helps us live in harmony with others. It is unavoidable to have misunderstanding and tension with others during work or study. But humor can ，as a "pacifier" inject a light note into the touchy situation to ease these problems quicker than angry words or quarrels. With it you can always keep on good terms with others.

　　In short， a sense of humor is really one of the keys to happiness. It gives zest to life to make it worth living.