一,单独使用时either 也,放在句末,用于否定句If you do not go,I shall not either.倘若你不去,我也不去 I have not seen him either.我也没有看见过他。 I haven‘t been there yet,either.我也没有去过那儿。 too 也,放在句末,用于肯定句I went there, too.我也到那儿去的。Mother was angry too.母亲也发怒了。 also 也,比too正式,放在动词前He also asked to go.他也要求去.I also went. 我也去的.He came also. 他也来的。练习1. You are reading English, I am _____reading English.2. They are at school. They are students,______.3.Jim doesn’t know Japanese, and his brother doesn’t know Japanese, ______.答案:also, too, either二,与其它词组成词组使用时either的另外一种用法,与of和or连用即:(1)either of两者其一,Either of us speaks English. (注意“speaks“)注意:其后一般跟单数,注意与both of(后跟复数)的区别There are trees on either side of the street. 街的两边(每一边)绿树成荫。 There are trees on both sides of the street. 街的两边绿树成荫(2)either ... or...或者……或者……,不是……就是……采用就近原则问题如:When the girl is happy, she either sings or dances. 那个女孩高兴时,不是唱就是跳。(此句中either...or...连接两个动词,因为主语是单数第三人称,谓语动词要用其相应的形式。) Either you or I am going there tomorrow. 明天要么你去那里,要么我去那里。(连接两个主语时,其谓语动词应与最近的一个主语在人称和数上保持一致,这就是我们通常说的“就近原则”。)Are either you or I going there tomorrow? 明天是你还是我去那里? (当either最接近的词语改为you时,助动词是are,就近原则)