life 可以比作什么？teacher可以比作什么动物？

Life is just like a river --small at first,narrowly contained witj its banks,and rushingpassionnately past rocks and over waterfalls.Gradually the river grows wilder,the banks recede,the waters flow more quietlyand in the end ,without any visuble break ,they became merged in the sea , and painlessly lose their individual being .
生活就象一条河--开始是细小的，被限制在狭窄的两岸之间，充满激情地冲过巨石，滑下瀑布。渐渐地，河道变宽了，河岸扩展了，河水流得平稳了。最后，河水流入了海洋，毫无痛苦地摆脱了自身的存在。
Teacher is like a candle:lighting others and sacrifice itself.老师象蜡烛--照亮别人，牺牲自己。
我觉得不能把老师比做什么动物，这有点不太尊重。

life is a box of chocolate...阿甘他老妈说的
奶牛milch cow,吃的是草，挤出来的是奶，无私奉献...真恶心，自己寒一个-_-

把句子拿来看看

在英语中,一般通常中国人和外国人都可以接受的是life journey.但是这个基本上就属于通常很通俗了,也就不特别当它为比喻了.个人推荐罗素在 how to grow old中的比喻,将人的life比作river ....引一句经典的如下:
"An individual human existence should be like a river——small at first, narrowly contained within its banks, and rushing passionately past rocks and over waterfalls. Gradually the river grows wider, the banks