neither 两者都不
a.neither作主语时,谓语动词用单数.
b.作定语与单数名词连用,但neither… nor 用作并列连词,可与复数名词连用.其谓语采用就近原则.
c.可用于下列句型,避免重复.
She can't sing,neither (can) he.
neither 与nor
d.如前句是否定式从句,则主句用neither,而不用 nor.
If you don't do it,neither should I.如果你不干,我也不干.
e.如后连续有几个否定句式,则用nor,不用neither.
He can't sing,nor dance,nor skate.
none 无
1) none作主语,多与of 构成短语 none of.在答语中,none可单独使用.
Are there any pictures on the wall?None.
2) none作主语,谓语动词单复数均可.但如做表语,则其单复数与表语一致.
It is none of your business.
either与单数连用.
Either of the two boys is clever.两个男孩都很聪明.
There are flowers on either side of the street.
(岸的两边)
路边长满了野花.