1.no one
1)不与of连用；2)谓语动词用单数；3)只能指人,但不具体指什么人；4)一般用来回答who,及含
anyone,anybody引起的疑问句.如：
1)No one likes a person with bad manners.
2)——Who is in the room?
——No one.
3)——Is there anyone in the room?
——No one.
2.none
1)可与of连用；2)谓语动词用单或复数；3)具体指什么人或物；4)一般用来回答how many +n,how
much +n及含any+n引起的疑问句.请看：
1)None of us have/has seen him.
2)——How many students are there in the room?——None.
3)——Is there any water in the thermos?——None.
4)——How much money do you have on you?——None.