none强调数量，可用来回答how many / how much提问的问句，表示“一个也没有”。
谓语的单复数：none of后接不可数名词时，谓语动词用单数形式；none of后接复数名词或代词时，谓语动词可以用单数形式，也可以用复数形式。
have none of不接受(not accept)；
none but只有(only)；
none other than正是；
second to none首屈一指的(the best)；
none the一点也不(用在比较级前)；
none too不太(not very)。
♥例句：
— How much bread is there in the fridge?
— None. We have eaten it up.
As far as I know, none of the money is his.
None of these girls like / likes the story.
no one指代范围：no one=nobody，只能指人，意为“没有人”
no one不强调数量，可用来回答who提问的问句。
no one不能与of短语连用。
谓语的单复数：no one作主语时，谓语动词只能用单数。
♥例句：
—Who was in the library at that time?
—No one. / Nobody.
No one / Nobody is fond of reading boring books.
小试牛刀
根据句意，选用none 或 no one填空。
1. — Don’t be angry with your kid when he makes a mistake again, will you?
— No, I won’t. I know that ________ of us are perfect after all.
A. none
B. neither
C. each
D. all
2. — Who was hurt in the traffic accident?
— ________.
A. None
B. No one
C. Nothing
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