Oneday,ateachertookhispupilstoachickenfarmtopayavisit.Whentheycameneartheincubator,chickjustgotoutofitseggshell.

　　一天,老师带学生到养鸡场参观,当他们走近孵化器时,刚好一只小鸡破壳而出.

　　"It'swonderfultoseealittlethingcomeoutfromtheeggshell,isn'tit?"theteachersaid.

　　“看见一个小生命从蛋壳里出来,岂不是很奇妙的吗?”老师说.

　　"Yes,sir."saidoneoftheboys,"butitwouldbemorewonderfulifweknewhowachickgetsintoitseggshellbeforehand."

　　“是的,老师.”一个男学生说,“可是,如果我们知道它是怎样事先钻进蛋壳里的那就更奇妙了.”