either用于否定句的两点说明，作为"也"讲，在否定句中要用either而不能...，either,单词记忆法、语法用法，与either, 相关例句、名人名言

either单词相关例句：

Riches either serve or govern the possessor. 财富可以侍候主人，也可以支配主人。
With close friends in their lives ,people develop courage and positive attitudes.Teenagers have the moral support to assert their individuality;the elderly approach their advanced years with optimism and an interest in life.——Ralph Waldo Emerson. American thinkerA man is either free or he is not. There cannot be any apprenticeship for freedom.I Baraka. French Writer  人要么是自由的，要么是不自由的，从来就不存在过渡阶段。法国作家巴拉卡 A.  
Words have a magical power. They can bring either the greatest happiness or deepest  despair; can transfer  knowledge from teacher to students words enable the orator to sway his audience and dictate its decisions .Words are capable of arousing  the strongest emotions and prompting all man's actions , Do not ridicule the use of words in psychotherapy.Sigmund Freud, German Psychiatrist——言辞具有不可思议的力量。他们能带来最大的幸福，也能带来最深的失望；能把知识从教师传给学生；言辞能使演说者左右他的听众，，并强行代替他们作出决定。言辞能激起最大强烈的情感，促进人的一切行动。不要嘲笑言辞在心理治疗当中的的用途。德国精神分析学家  弗洛伊德 Snorman——
Just definitions either prevent or put an end to disputes. 正确的定义不但能避免争论,也能结束争论.
Mishaps are like knives that either serve us or cut us as we grasp them by the handle or blade.——James Russell Lowell, American poetess and critic灾难就像刀子，握住刀柄就可以为我们服务，拿住刀刃则会割破手。美国女诗人、批评家  洛威尔 J  R
Your honesty is not to be based either on religion of policy ,.Both your religion and policy must be based on it.——John Ruskin , UK art critic  诚实不应当建立在宗教或政策的基础上。相反，宗教和政策都必须以诚实为基础。英国艺术评论 罗斯金.J.
A kiss can bring either unrest or peace to one's heart. 一个吻既可给人的心灵带来不安,也可以使它得到安宁.
If you want to live your whole life free from pain,——You must become either a god or else a coupes.Consider other men's troubles,That will comfort yours.Menander, Ancient Athenian playwriter     如果你想一生摆脱苦难，你就得是神或者是死尸。想想他人的不幸，你就能坦然面对人生。古雅典剧作家   米南德

They would like to have either a cat or a dog.
他们想养一只猫或一只狗。

ADJ. 旁边(或两旁)有树的. A tree-lined road or street has trees on either side.