rice的前面用a还是an还是some（rice前面是a还是an）

rice的前面既不能用a 也不能用a n而要用some.因为rice是一个不可数名词。不可数名词不能直接用不定冠词a 和an来修饰。可数名词可以直接用a或者an来修饰。some既可以修饰可数名词也可以修饰不可数名词。如：

I have a car.

He has an apple.

There is some water in the bottle.

There are some chairs in the room.