either的用法？
1、either作主语时谓语动词一般用单数形式，但在否定句中常用复数形式。可单独用，也可和of连用，of后跟复数名词或复数代词，但意义明确时可省略of短语。
2、either在口语中有时也可放在否定句中的名词后加强语气。
3、either用作副词时须放在否定的动词或形容词之后，表示“也(不)”，加强语气。
例：It's not as heavy, either.
这也不那么重。
4、 用于否定句中，表示“两者都不”。
例：There had been no indication of either breathlessness or any loss of mental faculties right until his death.
直到去世，他既没有出现呼吸困难也没有脑功能丧失的迹象。
5、用于表示“两者中任一?”
例：A special Indian drug police that would have the authority to pursue suspects into either country.
有权到这两国中任意一国追捕嫌犯的一位印度缉毒特警。
扩展资料
同义词
1、or
英 [ɔː] 美 [ɔr]
conj. 或，或者；还是；要不然
n. (Or)人名；(土、匈、土库、阿塞、瑞典)奥尔
例：Everyone benefited from limiting their intake of coffee to just one or two cups a day.
每个人都从每天限量喝一杯或两杯咖啡的做法中受益了。
例：When I was nine or ten someone explained to me that when you are grown up you have to work.
在我9岁或10岁的时候，有人跟我解释说，人长大之后必须工作。
2、vel
英 [vel]
conj. 或者（等于or）
abbr. 上等皮纸（vellum）；速率（velocity）
例：In Canada, students at that le vel are youth in their preteen years as well as teenagers.
在加拿大，这个阶段的学生和十几岁的青少年都是青春期前的孩子。
1.(两者之中)任一的
You may go by either road.
你两条路都可以走.
2.(两者之中)每一方的;每一的
She studied history and philosophy, but she had little interest in either subject.
她学过历史和哲学,但对这两门课都没有多少兴趣.
He had a bag in either hand.
他两手各拿一只包.
代词 pron.
1.(两者之中)任何一个
I don't agree with either of you on these issues.
在这些问题上,你们两个我都不同意.
连接词 conj.
1.(通常与or连用)或者
Either you or your father must see this young man today.
你或是你的父亲今天必须见这位年轻人.
She is coming either today or tomorrow.
她不是今天就是明天来.
副词 ad.
1.(用在否定句中)也,而且;根本
If you don't go, I won't either.
你如不去,我也不去.
It won't do them any good, but it won't do them any harm either.
这对他们没有好处,但也没有坏处.
You can either drink milk or tea.
We have milk and tea here. You may drink either one
