neither 兩者都不
a.neither作主語時,謂語動詞用單數(shù).
b.作定語與單數(shù)名詞連用,但neither… nor 用作并列連詞,可與復數(shù)名詞連用.其謂語采用就近原則.
c.可用于下列句型,避免重復.
She can't sing,neither (can) he.
neither 與nor
d.如前句是否定式從句,則主句用neither,而不用 nor.
If you don't do it,neither should I.如果你不干,我也不干.
e.如后連續(xù)有幾個否定句式,則用nor,不用neither.
He can't sing,nor dance,nor skate.
none 無
1) none作主語,多與of 構成短語 none of.在答語中,none可單獨使用.
Are there any pictures on the wall?None.
2) none作主語,謂語動詞單復數(shù)均可.但如做表語,則其單復數(shù)與表語一致.
It is none of your business.
either與單數(shù)連用.
Either of the two boys is clever.兩個男孩都很聰明.
There are flowers on either side of the street.
(岸的兩邊)
路邊長滿了野花.