something在否定句中变anything不?

问题描述:

something在否定句中变anything不?
something 某事 anything 任何事 如果在否定句中要变那意思变不?帮举例说明下.

I want to eat something.我想要吃点东西.
I don't want to eat angthing.我不想吃任何东西.