[解析]
(1)D.推理判断题.根据文章第一段Studies show that laughter is something that makes you feel calm orrelaxed for both physical and psychological wounds though it may seem futileto laugh in the face of pain and fear.可以看出这是文章的主旨,下面的两个例子都是围绕着这个主旨展开的,所有推断出A选项"笑能够摆脱痛苦和恐惧"最符合题意;故选D.
(2)A.细节推理题.根据文章states Rizzo,the author of Becoming a Humorous Being可以看出Steve Rizzo是一个作者,所有a reporter最符合他的身份;故选A.
(3)B.主旨推测题.根据文章最后段"If there is anything we have learnt from 9.11,it's how precious life really is,"she says."We have to send a message that our spirit won't die.One important thing that unites us is our ability to laugh.""作者希望人们忘记9.11的阴影学会笑容,可以推测出美国人受到了9.11的严重的伤害;故选B.