nothing

1、指物；

2、谓语用单数；

3、一般用来回答含anything的一般问句及what引起的特殊问句.请看：

① --What is in the box?

--Nothing.

② --Is there anything in the sky?

--Nothing.

③ --Can you see anything without glasses?

--Nothing.

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, howmuch 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.

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 like a person with bad manners.

② --Who is in the room?

--No one.

③ --Is there anyone in the room?

--No one.